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Jin Q, Chen F, Zhou Y, Xu Z, Cheung JM, Chen R, Summers RM, Rousseau JF, Ni P, Landsman MJ, Baxter SL, Al’Aref SJ, Li Y, Chen A, Brejt JA, Chiang MF, Peng Y, Lu Z. Hidden Flaws Behind Expert-Level Accuracy of Multimodal GPT-4 Vision in Medicine. ArXiv 2024:arXiv:2401.08396v3. [PMID: 38410646 PMCID: PMC10896362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Recent studies indicate that Generative Pre-trained Transformer 4 with Vision (GPT-4V) outperforms human physicians in medical challenge tasks. However, these evaluations primarily focused on the accuracy of multi-choice questions alone. Our study extends the current scope by conducting a comprehensive analysis of GPT-4V's rationales of image comprehension, recall of medical knowledge, and step-by-step multimodal reasoning when solving New England Journal of Medicine (NEJM) Image Challenges - an imaging quiz designed to test the knowledge and diagnostic capabilities of medical professionals. Evaluation results confirmed that GPT-4V performs comparatively to human physicians regarding multi-choice accuracy (81.6% vs. 77.8%). GPT-4V also performs well in cases where physicians incorrectly answer, with over 78% accuracy. However, we discovered that GPT-4V frequently presents flawed rationales in cases where it makes the correct final choices (35.5%), most prominent in image comprehension (27.2%). Regardless of GPT-4V's high accuracy in multi-choice questions, our findings emphasize the necessity for further in-depth evaluations of its rationales before integrating such multimodal AI models into clinical workflows.
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Affiliation(s)
- Qiao Jin
- National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
| | | | - Yiliang Zhou
- Department of Population Health Sciences, Weill Cornell Medicine, New York, NY, USA
| | - Ziyang Xu
- Ronald O. Perelman Department of Dermatology, New York University Grossman School of Medicine, New York City, NY, USA
| | - Justin M. Cheung
- Department of Medicine, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
| | - Robert Chen
- Pathology & Laboratory Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Ronald M. Summers
- Imaging Biomarkers and Computer-Aided Diagnosis Laboratory, Department of Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, MD, USA
| | - Justin F. Rousseau
- Department of Neurology, Peter O’Donnell Jr. Brain Institute, UT Southwestern Medical Center, Dallas, TX, USA
| | - Peiyun Ni
- Division of Gastroenterology, Department of Medicine, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
| | - Marc J Landsman
- Division of Gastroenterology, Department of Medicine, Metrohealth Medical Center, Cleveland, OH, USA. Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Sally L. Baxter
- Division of Ophthalmology Informatics and Data Science, Viterbi Family Department of Ophthalmology and Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
| | - Subhi J. Al’Aref
- Division of Cardiology, Department of Internal Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Yijia Li
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Alex Chen
- Department of Internal Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Josef A. Brejt
- Department of Internal Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Michael F. Chiang
- National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Yifan Peng
- Department of Population Health Sciences, Weill Cornell Medicine, New York, NY, USA
| | - Zhiyong Lu
- National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
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Ni P, Mayo H, Fernández-Del Castillo C, Elamin S, Brown DR, Mino-Kenudson M, Krishnan K, Casey B, Lafaro K, Lennon AM, Afghani E, Hernandez-Barco YG. Impact of preoperative endoscopic procedures on adverse event rates after surgical resection for main-duct and mixed-type intraductal papillary mucinous neoplasms (IPMNs). Pancreatology 2024; 24:152-159. [PMID: 37981524 DOI: 10.1016/j.pan.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 10/08/2023] [Accepted: 11/11/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Main-duct (MD-) and mixed-type (MT-) IPMNs harbor an increased risk of pancreatic cancer and warrant surgical resection. Preoperative endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) are important in the diagnosis of IPMNs. The aim of this study was to investigate whether endoscopic procedures manipulating the MD impact postoperative adverse events in patients with MD- and MT-IPMNs. METHODS We performed a retrospective study of 369 patients who underwent resections for MD- or MT-IPMN at two tertiary centers (2000-2019). Multivariable logistic regression analyses were performed for postoperative adverse events to compare the risks between intervention (ERCP, EUS-FNA with branch duct (BD) aspirated, EUS-FNA with MD aspirated from the duct directly or cyst/mass arising from MD) versus no-intervention group. RESULTS 33.1 % of patients had a preoperative ERCP and 69.4 % had EUS-FNA. Postoperative adverse events included: 30-day readmission (12.7 %), delayed gastric emptying (13.8 %), pancreatic fistula (10.3 %), abdominal abscess (5.7 %), cardiopulmonary adverse events (11.4 %), and mortality (1.4 %). The model was adjusted for potential confounders. There were no significant differences between the ERCP and no-ERCP groups for specific adverse events. Compared to no-EUS-FNA groups, groups of EUS-FNA with BD aspiration and EUS-FNA with MD aspiration from the main pancreatic duct directly or cyst/mass arising from MD did not show a significant increase in specific adverse events. CONCLUSIONS Postoperative adverse events were not significantly increased among patients who had ERCP or EUS-FNA before surgical resection for MD- or MT-IPMNs. Endoscopic procedures directly sampling the MD can be safely pursued for diagnostic purposes in selected cases.
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Affiliation(s)
- Peiyun Ni
- Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Harrison Mayo
- Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Sami Elamin
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Douglas R Brown
- Harvard-MIT Health Sciences and Technology, Harvard Medical School, Boston, MA, USA
| | - Mari Mino-Kenudson
- Department of Pathology, Massachusetts General Hospital, Boston, MA, USA
| | - Kumar Krishnan
- Division of Gastroenterology, Massachusetts General Hospital, Boston, MA, USA
| | - Brenna Casey
- Division of Gastroenterology, Massachusetts General Hospital, Boston, MA, USA
| | - Kelly Lafaro
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Anne Marie Lennon
- Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Elham Afghani
- Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Abouzeid CA, Santos E, Chacon KL, Ni P, Kelter BM, Gibran NS, Kowalske KJ, Kazis LE, Ryan CM, Schneider JC. Examining the impact of the COVID-19 pandemic on participants in a study of burn outcomes. Burns 2023; 49:1232-1235. [PMID: 37193614 PMCID: PMC10081876 DOI: 10.1016/j.burns.2023.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 04/04/2023] [Indexed: 05/18/2023]
Affiliation(s)
- C A Abouzeid
- Department of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital, 300 1st Avenue, Charlestown, MA 02129, USA
| | - E Santos
- Department of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital, 300 1st Avenue, Charlestown, MA 02129, USA
| | - K L Chacon
- Department of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital, 300 1st Avenue, Charlestown, MA 02129, USA
| | - P Ni
- Department of Health Law, Policy, and Management, Boston University School of Public Health, 715 Albany Street, Boston, MA 02118, USA
| | - B M Kelter
- Department of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital, 300 1st Avenue, Charlestown, MA 02129, USA
| | - N S Gibran
- Department of Surgery, The University of Washington, 1959 NE Pacific St, Seattle, WA 98195, USA
| | - K J Kowalske
- Department of Physical Medicine and Rehabilitation, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390, USA
| | - L E Kazis
- Department of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital, 300 1st Avenue, Charlestown, MA 02129, USA; Department of Health Law, Policy, and Management, Boston University School of Public Health, 715 Albany Street, Boston, MA 02118, USA; Rehabilitation Outcomes Center at Spaulding, Spaulding Rehabilitation, 300 1st Avenue, Charlestown, MA, 02129, USA
| | - C M Ryan
- Department of Surgery, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA; Department of Surgery, Shriners Children's, 51 Blossom Street, Boston, MA 02114, USA; Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA
| | - J C Schneider
- Department of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital, 300 1st Avenue, Charlestown, MA 02129, USA; Rehabilitation Outcomes Center at Spaulding, Spaulding Rehabilitation, 300 1st Avenue, Charlestown, MA, 02129, USA; Department of Physical Medicine and Rehabilitation, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA; Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA.
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Wei X, Cheng D, Shao C, Pang K, Xiao J, Zhang Y, Wu M, Zhang L, Ni P, Zhang F. A comparative study of pilomatricoma and epidermoid cyst with ultrasound. Clin Radiol 2023; 78:e582-e589. [PMID: 37183139 DOI: 10.1016/j.crad.2023.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 04/09/2023] [Accepted: 04/19/2023] [Indexed: 05/16/2023]
Abstract
AIM To explore and compare the ultrasonic (US) features of pilomatricoma (PM) and epidermoid cyst (EC) in the differential diagnosis and improve the accuracy of US diagnosis of PM. MATERIALS AND METHODS Three hundred and nine patients who underwent US examination before surgery with a histopathological diagnosis of PM or EC after surgery were analysed retrospectively. The patients were categorised into the training and validation sets according to the inspection times. Univariate analysis was undertaken on the US and clinical features of PM and statistically significant variables (p<0.05) were included in the multivariate logistic regression model to establish a diagnostic model. RESULTS The results demonstrated that the multivariate logistic regression model for PM was statistically significant (p<0.001). The risk factors included posterior echo attenuation and hypoechoic halos (odds ratio [OR] = 9.277, 10.254) and the protective factors included age, diameter thickness, and posterior echo enhancement (OR=0.936, 0.302, 0.156). The performance of the diagnostic model was tested using the training set (area under the receiver operating characteristic curve [AUC] = 0.974, 95% confidence interval [CI] = 0.955-0.994) and the validation set (AUC = 0.967, 95% CI = 0.926-1.000), which demonstrated good discriminant ability. CONCLUSIONS The diagnostic accuracy for PM was higher than that for EC when the nodule is characterised by posterior echo attenuation, hypoechoic halos, smaller thickness, and younger age. The US diagnostic model developed may be used to guide the diagnosis of PM.
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Affiliation(s)
- X Wei
- Department of Ultrasound, the Second Hospital of Shandong University, Jinan, Shandong, China
| | - D Cheng
- Department of Radiology, Jinan Fourth People's Hospital, Jinan, Shandong, China
| | - C Shao
- Department of Evidence-Based Medicine, the Second Hospital of Shandong University, Jinan, Shandong, China
| | - K Pang
- Department of Ultrasound, the Second Hospital of Shandong University, Jinan, Shandong, China
| | - J Xiao
- Department of Evidence-Based Medicine, the Second Hospital of Shandong University, Jinan, Shandong, China
| | - Y Zhang
- Department of Ultrasound, the Second Hospital of Shandong University, Jinan, Shandong, China
| | - M Wu
- Department of Ultrasound, the Second Hospital of Shandong University, Jinan, Shandong, China
| | - L Zhang
- Department of Pathology, the Second Hospital of Shandong University, Jinan, Shandong, China
| | - P Ni
- Department of Ultrasound, the Second Hospital of Shandong University, Jinan, Shandong, China
| | - F Zhang
- Department of Ultrasound, the Second Hospital of Shandong University, Jinan, Shandong, China.
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Ni P, Lansdorp-Vogelaar I, Zauber AG, Cao Y. Elucidating the Drivers for the Rising Incidence of Early-Onset Colorectal Cancer: How Ecologic Studies Could Help and What Is Next. Cancer Epidemiol Biomarkers Prev 2023; 32:164-166. [PMID: 36744311 DOI: 10.1158/1055-9965.epi-22-1126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/15/2022] [Accepted: 12/15/2022] [Indexed: 02/07/2023] Open
Abstract
The incidence of colorectal cancer diagnosed before age 50, often referred to as early-onset colorectal cancer, has been increasing, whereas the overall colorectal cancer incidence has declined. Elucidating the drivers for the rising burden of early-onset colorectal cancer is a priority in cancer epidemiology and prevention. In this issue of Cancer Epidemiology, Biomarkers & Prevention, Chen and colleagues demonstrated that ecologic studies are a helpful method to reveal emerging risk factors at the population level and concluded that alcohol use might be a potential contributor to the rising incidence of early-onset colorectal cancer. Moving forward, because of the observed birth cohort effect in early-onset colorectal cancer, where younger generations have a steeper increase, hypothesis-driven investigations on emerging risk factors in recent generations, especially during early life, are warranted. Ultimately, the identified risk factors could be integrated with well-established microsimulation models of colorectal cancer, powerful tools that can simultaneously capture population-level secular changes in risk factors, relative risk estimates for each risk factor, and the natural history of colorectal cancer. This would allow us to quantitatively estimate the explained and unexplained portion of the rising incidence of early-onset colorectal cancer by calendar period and birth cohorts, and to help identify priorities in etiologic research, prevention, and early detection. See related article by Chen et al., p. 217.
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Affiliation(s)
- Peiyun Ni
- Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Iris Lansdorp-Vogelaar
- Department of Public Health, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Ann G Zauber
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Yin Cao
- Division of Public Health Sciences, Department of Surgery, Washington University in St. Louis School of Medicine, St. Louis, Missouri
- Division of Gastroenterology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
- Alvin J. Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri
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Li MD, Ni P, Yu HH, Yu ZF, Sun JX, Bai MY, Bai S, An XX, Shi YH, Liu YY. [Analysis on the status quo of the awareness rate of core knowledge of cancer prevention and treatment and its influencing factors among residents in Liaoning Province in 2021]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:22-28. [PMID: 36655253 DOI: 10.3760/cma.j.cn112150-20220309-00216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Objective: To analyze the status quo of the knowledge and related factors of cancer prevention and treatment among residents in Liaoning Province in 2021. Methods: From August to November 2021, through network sampling method, 17 474 permanent residents aged 15-69 years in Liaoning Province were surveyed. The WeChat public account was used to collect information such as demographic characteristics and core knowledge of cancer prevention and treatment. The Chi-square test was used to compare the difference of the level of the cancer prevention and treatment knowledge among different groups. The multivariate logistic regression model was used to analyze the related factors. Results: Among the 17 474 subjects, 43.1% (7 528) were male and 58.7% (10 262) were urban residents. The overall awareness rate was 72.3%, and the awareness rate of cancer cognition, prevention, early diagnosis and treatment, cancer management and rehabilitation were 71.4%, 67.6%, 72.7%, 83.4% and 63.5%, respectively. The multivariate logistic regression model showed that the residents who were man (OR: 0.850, 95%CI: 0.781-0.925), in rural areas (OR: 0.753, 95%CI: 0.694-0.817), 55-59 years old (OR: 0.851, 95%CI: 0.751-0.963), quitters (OR: 0.721, 95%CI: 0.640-0.813) and smoker (OR: 0.724, 95%CI: 0.654-0.801) had lower awareness rates, while the residents who were 35-54 years old (OR: 1.312, 95%CI: 1.202-1.432), with an educational level of junior high school/senior high school/college degree or above (OR: 1.834-5.130, 95%CI: 1.575-6.047), technical personnel (OR: 1.592, 95%CI: 1.367-1.854), civil servant/institution staff (OR: 1.282, 95%CI: 1.094-1.503), enterprise/business/service staff (OR: 1.218, 95%CI: 1.071-1.385), retired (OR: 1.324, 95%CI: 1.114-1.573) and with family history of cancer (OR: 1.369, 95%CI: 1.266-1.481) had higher awareness rates. Conclusion: The level of the awareness of core knowledge of cancer prevention and treatment among residents in Liaoning Province has met the requirements of the Healthy China Action. Region, gender, education level, age, family history of cancer and smoking are relevant factors.
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Affiliation(s)
- M D Li
- Department of Liaoning Office for Cancer Prevention and Control, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - P Ni
- Department of Liaoning Office for Cancer Prevention and Control, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - H H Yu
- Department of Liaoning Office for Cancer Prevention and Control, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - Z F Yu
- Department of Liaoning Office for Cancer Prevention and Control, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - J X Sun
- Department of Chronic Disease Prevention and Control, Dandong Cencer for Disease Control and Prevention, Dandong 118000, China
| | - M Y Bai
- Department of Chronic Disease Prevention and Control, Yingkou Cencer for Disease Control and Prevention, Yingkou 115000, China
| | - S Bai
- Department of Chronic Disease Prevention and Control, Shenyang Cencer for Disease Control and Prevention, Shenyang 110031, China
| | - X X An
- Department of Chronic Disease Prevention and Control, Benxi Cencer for Disease Control and Prevention, Benxi 117000, China
| | - Y H Shi
- Department of Chronic Disease Prevention and Control, Tieling Cencer for Disease Control and Prevention, Tieling 112099, China
| | - Y Y Liu
- Department of Liaoning Office for Cancer Prevention and Control, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
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Ni P, Farinelli WA, Cheng LL, Farrar CT, Motamarry A, Moradi Tuchayi S, Wang Y, Anderson RR, Garibyan L. Total ice content and lipid saturation determine adipose tissue cryolipolysis by injection of ice-slurry. Lasers Surg Med 2023; 55:116-125. [PMID: 35598082 PMCID: PMC9676409 DOI: 10.1002/lsm.23557] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 03/30/2022] [Accepted: 05/03/2022] [Indexed: 02/04/2023]
Abstract
OBJECTIVES Cryolipolysis uses tissue cooling to solidify lipids, preferentially damaging lipid-rich cells. Topical cooling is popular for the reduction of local subcutaneous fat. Injection of biocompatible ice-slurry is a recently introduced alternative. We developed and verified a quantitative model that simulates the heat exchange and phase changes involved, offering insights into ice-slurry injection for treating subcutaneous fat. METHODS Finite element method was used to model the spatial and temporal progression of heat transfer between adipose tissue and injected ice-slurry, estimating dose-response relationships between properties of the slurry and size of tissue affected by cryolipolysis. Phase changes of both slurry and adipose tissue lipids were considered. An in vivo swine model was used to validate the numerical solutions. Oils with different lipid compositions were exposed to ice-slurry in vitro to evaluate the effects of lipid freezing temperature. Microscopy and nuclear magnetic resonance (NMR) were performed to detect lipid phase changes. RESULTS A ball of granular ice was deposited at the injection site in subcutaneous fat. Total injected ice content determines both the effective cooling region of tissue, and the duration of tissue cooling. Water's high latent heat of fusion enables tissue cooling long after slurry injection. Slurry temperature affects the rate of tissue cooling. In swine, when 30 ml slurry injection at -3.5°C was compared to 15 ml slurry injection at -4.8°C (both with the same total ice content), the latter led to almost twice faster tissue cooling. NMR showed a large decrease in diffusion upon lipid crystallization; saturated lipids with higher freezing temperatures were more susceptible to solidification after ice-slurry injection. CONCLUSIONS Total injected ice content determines both the volume of tissue treated by cryolipolysis and the cooling duration after slurry injection, while slurry temperature affects the cooling rate. Lipid saturation, which varies with diet and anatomic location, also has an important influence.
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Affiliation(s)
- Peiyun Ni
- Harvard-MIT Health Sciences and Technology (HST), Harvard Medical School, Boston, MA, USA
- Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - William A. Farinelli
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - Leo L. Cheng
- Departments of Radiology and Pathology, Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Christian T. Farrar
- Departments of Radiology and Pathology, Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Anjan Motamarry
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - Sara Moradi Tuchayi
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - Ying Wang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - R. Rox Anderson
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Dermatology, Harvard Medical School, Boston, MA, USA
| | - Lilit Garibyan
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Dermatology, Harvard Medical School, Boston, MA, USA
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Liu R, Paz M, Siraj L, Boyd T, Salamone S, Lite TLV, Leung KM, Chirinos JD, Shang HH, Townsend MJ, Rho J, Ni P, Ranganath K, Violante AD, Zhao Z, Silvernale C, Ahmad I, Krasnow NA, Barnett ES, Harisinghani M, Kuo B, Black KE, Staller K. Feeding intolerance in critically ill patients with COVID-19. Clin Nutr 2022; 41:3069-3076. [PMID: 33934924 PMCID: PMC8007186 DOI: 10.1016/j.clnu.2021.03.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/17/2021] [Accepted: 03/22/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Early reports suggest significant difficulty with enteral feeding in critically ill COVID-19 patients. This study aimed to characterize the prevalence, clinical manifestations, and outcomes of feeding intolerance in critically ill patients with COVID-19. METHODS We examined 323 adult patients with COVID-19 admitted to the intensive care units (ICUs) of Massachusetts General Hospital between March 11 and June 28, 2020 who received enteral nutrition. Systematic chart review determined prevalence, clinical characteristics, and hospital outcomes (ICU complications, length of stay, and mortality) of feeding intolerance. RESULTS Feeding intolerance developed in 56% of the patients and most commonly manifested as large gastric residual volumes (83.9%), abdominal distension (67.2%), and vomiting (63.9%). Length of intubation (OR 1.05, 95% CI 1.03-1.08), ≥1 GI symptom on presentation (OR 0.76, 95% CI 0.59-0.97), and severe obesity (OR 0.29, 95% CI 0.13-0.66) were independently associated with development of feeding intolerance. Compared to feed-tolerant patients, patients with incident feeding intolerance were significantly more likely to suffer cardiac, renal, hepatic, and hematologic complications during their hospitalization. Feeding intolerance was similarly associated with poor outcomes including longer ICU stay (median [IQR] 21.5 [14-30] vs. 15 [9-22] days, P < 0.001), overall hospitalization time (median [IQR] 30.5 [19-42] vs. 24 [15-35], P < 0.001) and in-hospital mortality (33.9% vs. 16.1%, P < 0.001). Feeding intolerance was independently associated with an increased risk of death (HR 3.32; 95% CI 1.97-5.6). CONCLUSIONS Feeding intolerance is a frequently encountered complication in critically ill COVID-19 patients in a large tertiary care experience and is associated with poor outcomes.
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Affiliation(s)
- Rebecca Liu
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Mary Paz
- Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Layla Siraj
- Harvard Medical School, Boston, MA 02115, USA,Program in Health Sciences & Technology, Harvard Medical School & Massachusetts Institute of Technology, Boston, MA 02115, USA
| | - Taylor Boyd
- Harvard Medical School, Boston, MA 02115, USA
| | | | | | - Krystle M. Leung
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | | | | | | | - Junsung Rho
- Division of Abdominal Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Peiyun Ni
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | | | - April D. Violante
- Division of Clinical Nutrition, Department of Nutrition and Food Services, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Zezhou Zhao
- Harvard Medical School, Boston, MA 02115, USA,Program in Health Sciences & Technology, Harvard Medical School & Massachusetts Institute of Technology, Boston, MA 02115, USA
| | - Casey Silvernale
- Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Imama Ahmad
- Department of Medicine, North Shore Medical Center, Salem, MA 01970, USA
| | | | | | - Mukesh Harisinghani
- Division of Abdominal Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Braden Kuo
- Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Katharine E. Black
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Kyle Staller
- Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA,Corresponding author. Division of Gastroenterology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA
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Lo CH, Ni P, Yan Y, Ma W, Joshi AD, Nguyen LH, Mehta RS, Lochhead P, Song M, Curhan GC, Cao Y, Chan AT. Association of Proton Pump Inhibitor Use With All-Cause and Cause-Specific Mortality. Gastroenterology 2022; 163:852-861.e2. [PMID: 35788344 PMCID: PMC9509450 DOI: 10.1053/j.gastro.2022.06.067] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 06/18/2022] [Accepted: 06/22/2022] [Indexed: 12/02/2022]
Abstract
BACKGROUND & AIMS The use of proton pump inhibitors (PPIs) has increased rapidly in the past 2 decades. Concerns about the regular use of PPIs contributing to mortality have been raised. METHODS We conducted a prospective cohort study using data collected from the Nurses' Health Study (2004-2018) and the Health Professionals Follow-up Study (2004-2018). Cox proportional hazards models were used to estimate the hazard ratios (HRs) and 95% CIs for mortality according to PPI use. We used a modified lag-time approach to minimize reverse causation (ie, protopathic bias). RESULTS Among 50,156 women and 21,731 men followed for 831,407 person-years and a median of 13.8 years, we documented 22,125 deaths, including 4592 deaths from cancer, 5404 from cardiovascular diseases, and 12,129 deaths from other causes. Compared with nonusers of PPIs, PPI users had significantly higher risks of all-cause mortality (HR, 1.19; 95% CI, 1.13-1.24) and mortality due to cancer (HR, 1.30; 95% CI, 1.17-1.44), cardiovascular diseases (HR, 1.13; 95% CI, 1.02-1.26), respiratory diseases (HR, 1.32; 95% CI, 1.12-1.56), and digestive diseases (HR, 1.50; 95% CI, 1.10-2.05). Upon applying lag times of up to 6 years, the associations were attenuated and no longer statistically significant (all-cause: HR, 1.04; 95% CI, 0.97-1.11; cancer: HR, 1.07; 95% CI, 0.89-1.28; cardiovascular diseases: HR, 0.94; 95% CI, 0.81-1.10; respiratory diseases: HR, 1.20; 95% CI, 0.95-1.50; digestive diseases: HR, 1.38; 95% CI, 0.88-2.18). Longer duration of PPI use did not confer higher risks for all-cause and cause-specific mortality. CONCLUSIONS After accounting for protopathic bias, PPI use was not associated with higher risks of all-cause mortality and mortality due to major causes.
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Affiliation(s)
- Chun-Han Lo
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Peiyun Ni
- Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Yan Yan
- Division of Biostatistics, Washington University School of Medicine in St Louis, St Louis, Missouri; Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine in St Louis, St Louis, Missouri
| | - Wenjie Ma
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts
| | - Amit D Joshi
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts
| | - Long H Nguyen
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Raaj S Mehta
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Paul Lochhead
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts
| | - Mingyang Song
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Gary C Curhan
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts; Renal Division, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Yin Cao
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine in St Louis, St Louis, Missouri; Division of Gastroenterology, Department of Medicine, Washington University School of Medicine in St Louis, St Louis, Missouri; Alvin J. Siteman Cancer Center, Washington University School of Medicine in St Louis, St Louis, Missouri
| | - Andrew T Chan
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts; Broad Institute of MIT and Harvard, Cambridge, Massachusetts; Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.
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Resnik L, Ni P, Borgia M, Clark M. A Psychosocial Adjustment Measure for Persons With Upper Limb Amputation. Can Prosthet Orthot J 2022; 5:37873. [PMID: 37614482 PMCID: PMC10443488 DOI: 10.33137/cpoj.v5i1.37873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 03/10/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Measurement of psychosocial adjustment after upper limb amputation (ULA) could be helpful in identifying persons who may benefit from interventions, such as psychotherapy and/or support groups. However, available measures of psychosocial adjustment after limb loss are currently designed for prosthetic users only. OBJECTIVE To create a measure of psychosocial adjustment for persons with ULA that could be completed by individuals regardless of whether a prosthesis is use. METHODOLOGY We modified items from an existing Trinity Amputation and Prosthesis Experience Survey (TAPES) measure and generated new items pertinent to persons who did not use a prosthesis. Item content was refined through cognitive interviewing and pilot testing. A telephone survey of 727 persons with major ULA (63.6% male, mean age of 54.4) was conducted after pilot-testing. After exploratory and confirmatory factor analyses (EFA and CFA), Rasch analyses were used to evaluate response categories, item fit and differential item functioning (DIF). Item-person maps, score distributions, and person and item reliability were examined. Test-retest reliability was evaluated in a 50-person subsample. FINDINGS EFA and CFA indicated a two-factor solution. Rasch analyses resulted in a 7-item Adjustment to Limitation subscale (CFI=0.96, TLI=0.95, RMSEA=0.128) and a 9-item Work and Independence subscale (CFI=0.935, TLI=0.913, RMSEA=0.193). Cronbach alpha and ICC were 0.82 and 0.63 for the Adjustment to Limitation subscale and 0.90 and 0.80 for the Work and Independence subscale, respectively. CONCLUSIONS This study developed the Psychosocial Adjustment to Amputation measure, which contains two subscales: 1) Adjustment to Limitation and 2) Work and Independence. The measure has sound structural validity, good person and item reliability, and moderate to good test-retest reliability.
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Affiliation(s)
- L.J. Resnik
- Research Department, Providence VA Medical Center, Providence, USA
- Department of Health Services, Policy and Practice, Brown University, Providence, USA
| | - P. Ni
- Biostatistics and Epidemiology Data Analytics Center (BEDAC), Boston University School of Public Health, Boston, USA
| | - M.L. Borgia
- Research Department, Providence VA Medical Center, Providence, USA
| | - M.A. Clark
- Department of Health Services, Policy and Practice, Brown University, Providence, USA
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Massachusetts, USA
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Shen Y, Ni P, Men RT, Yang L. [A case report of rare cause of abnormal liver function: sitosterolemia]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:477-479. [PMID: 34107589 DOI: 10.3760/cma.j.cn501113-20191009-00366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- Y Shen
- Department of Gastroenterology & Hepatology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - P Ni
- Department of Gastroenterology & Hepatology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - R T Men
- Department of Gastroenterology & Hepatology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L Yang
- Department of Gastroenterology & Hepatology, West China Hospital, Sichuan University, Chengdu 610041, China
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Quach E, Kazis L, Zhao S, Ni P, Clark V, McDannold S, Hartmann C. Safety Climate Associated with Adverse Events in Nursing Homes: A National VA Study. Health Serv Res 2020. [DOI: 10.1111/1475-6773.13445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- E. Quach
- UMASS Boston Boston MA United States
- Center for Healthcare Organization and Implementation Research Bedford MA United States
- New England Geriatric Research Education and Clinical Center Bedford MA United States
| | - L. Kazis
- Center for Healthcare Organization and Implementation Research Bedford MA United States
- Boston University School of Public Health Boston MA United States
| | - S. Zhao
- Center for Healthcare Organization and Implementation Research Bedford MA United States
| | - P. Ni
- Boston University School of Public Health Boston MA United States
| | - V. Clark
- Center for Healthcare Organization and Implementation Research Bedford MA United States
| | - S. McDannold
- Center for Healthcare Organization and Implementation Research Bedford MA United States
| | - C. Hartmann
- Center for Healthcare Organization and Implementation Research Bedford MA United States
- UMASS Lowell Lowell MA United States
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Garibyan L, Moradi Tuchayi S, Javorsky E, Farinelli WA, Wang Y, Purschke M, Tam J, Ni P, Lian CG, Anderson RR. Subcutaneous Fat Reduction with Injected Ice Slurry. Plast Reconstr Surg 2020; 145:725e-733e. [PMID: 32221206 DOI: 10.1097/prs.0000000000006658] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Cryolipolysis is a noninvasive method for removal of subcutaneous fat for body contouring. Conventional cryolipolysis with topical cooling requires extracting heat from subcutaneous fat by conduction across the skin, thus limiting the amount and the location of the fat removed. The authors hypothesized that local injection of a physiological ice slurry directly into target adipose tissue would lead to more efficient and effective cryolipolysis. METHODS Injectable slurries containing 20 percent and 40 percent ice content were made using common parenteral agents (normal saline and glycerol), then locally injected into the subcutaneous fat of swine. Ultrasound imaging, photography, histological, and gross tissue responses were monitored before and periodically up to 8 weeks after injection. RESULTS Fat loss occurred gradually over several weeks following a single ice slurry injection. There was an obvious and significant 55 ± 6 percent reduction in adipose tissue thickness compared with control sites injected with the same volume of melted slurry (p < 0.001, t test). The amount of fat loss correlated with the total volume of ice injected. There was no scarring or damage to surrounding tissue. CONCLUSION Physiological ice slurry injection is a promising new strategy for selective and nonsurgical fat removal.
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Affiliation(s)
- Lilit Garibyan
- From the Wellman Center for Photomedicine, Massachusetts General Hospital; and the Department of Dermatology, Harvard-MIT Health Sciences and Technology, and the Department of Pathology, Harvard Medical School; and Brigham and Women's Hospital
| | - Sara Moradi Tuchayi
- From the Wellman Center for Photomedicine, Massachusetts General Hospital; and the Department of Dermatology, Harvard-MIT Health Sciences and Technology, and the Department of Pathology, Harvard Medical School; and Brigham and Women's Hospital
| | - Emilia Javorsky
- From the Wellman Center for Photomedicine, Massachusetts General Hospital; and the Department of Dermatology, Harvard-MIT Health Sciences and Technology, and the Department of Pathology, Harvard Medical School; and Brigham and Women's Hospital
| | - William A Farinelli
- From the Wellman Center for Photomedicine, Massachusetts General Hospital; and the Department of Dermatology, Harvard-MIT Health Sciences and Technology, and the Department of Pathology, Harvard Medical School; and Brigham and Women's Hospital
| | - Ying Wang
- From the Wellman Center for Photomedicine, Massachusetts General Hospital; and the Department of Dermatology, Harvard-MIT Health Sciences and Technology, and the Department of Pathology, Harvard Medical School; and Brigham and Women's Hospital
| | - Martin Purschke
- From the Wellman Center for Photomedicine, Massachusetts General Hospital; and the Department of Dermatology, Harvard-MIT Health Sciences and Technology, and the Department of Pathology, Harvard Medical School; and Brigham and Women's Hospital
| | - Josh Tam
- From the Wellman Center for Photomedicine, Massachusetts General Hospital; and the Department of Dermatology, Harvard-MIT Health Sciences and Technology, and the Department of Pathology, Harvard Medical School; and Brigham and Women's Hospital
| | - Peiyun Ni
- From the Wellman Center for Photomedicine, Massachusetts General Hospital; and the Department of Dermatology, Harvard-MIT Health Sciences and Technology, and the Department of Pathology, Harvard Medical School; and Brigham and Women's Hospital
| | - Christine G Lian
- From the Wellman Center for Photomedicine, Massachusetts General Hospital; and the Department of Dermatology, Harvard-MIT Health Sciences and Technology, and the Department of Pathology, Harvard Medical School; and Brigham and Women's Hospital
| | - R Rox Anderson
- From the Wellman Center for Photomedicine, Massachusetts General Hospital; and the Department of Dermatology, Harvard-MIT Health Sciences and Technology, and the Department of Pathology, Harvard Medical School; and Brigham and Women's Hospital
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Bao EL, Chao LY, Ni P, Moura LMVR, Cole AJ, Cash SS, Hoch DB, Bianchi MT, Westover MB. Antiepileptic drug treatment after an unprovoked first seizure: A decision analysis. Neurology 2018; 91:e1429-e1439. [PMID: 30209239 PMCID: PMC6177278 DOI: 10.1212/wnl.0000000000006319] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 07/03/2018] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To compare the expected quality-adjusted life-years (QALYs) in adult patients undergoing immediate vs deferred antiepileptic drug (AED) treatment after a first unprovoked seizure. METHODS We constructed a simulated clinical trial (Markov decision model) to compare immediate vs deferred AED treatment after a first unprovoked seizure in adults. Three base cases were considered, representing patients with varying degrees of seizure recurrence risk and effect of seizures on quality of life (QOL). Cohort simulation was performed to determine which treatment strategy would maximize the patient's expected QALYs. Sensitivity analyses were guided by clinical data to define decision thresholds across plausible measurement ranges, including seizure recurrence rate, effect of seizure recurrence on QOL, and efficacy of AEDs. RESULTS For patients with a moderate risk of recurrent seizures (52.0% over 10 years after first seizure), immediate AED treatment maximized QALYs compared to deferred treatment. Sensitivity analyses showed that for the preferred choice to change to deferred AED treatment, key clinical measures needed to reach implausible values were 10-year seizure recurrence rate ≤38.0%, QOL reduction with recurrent seizures ≤0.06, and efficacy of AEDs on lowering seizure recurrence rate ≤16.3%. CONCLUSION Our model determined that immediate AED treatment is preferable to deferred treatment in adult first-seizure patients over a wide and clinically relevant range of variables. Furthermore, our analysis suggests that the 10-year seizure recurrence rate that justifies AED treatment (38.0%) is substantially lower than the 60% threshold used in the current definition of epilepsy.
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Affiliation(s)
- Erik L Bao
- From Harvard-MIT Health Sciences and Technology (E.L.B., L.-Y.C., P.N.), Harvard Medical School; and Department of Neurology (L.M.V.R.M., A.J.C., S.S.C., D.B.H., M.T.B., M.B.W.), Massachusetts General Hospital, Boston
| | - Ling-Ya Chao
- From Harvard-MIT Health Sciences and Technology (E.L.B., L.-Y.C., P.N.), Harvard Medical School; and Department of Neurology (L.M.V.R.M., A.J.C., S.S.C., D.B.H., M.T.B., M.B.W.), Massachusetts General Hospital, Boston
| | - Peiyun Ni
- From Harvard-MIT Health Sciences and Technology (E.L.B., L.-Y.C., P.N.), Harvard Medical School; and Department of Neurology (L.M.V.R.M., A.J.C., S.S.C., D.B.H., M.T.B., M.B.W.), Massachusetts General Hospital, Boston
| | - Lidia M V R Moura
- From Harvard-MIT Health Sciences and Technology (E.L.B., L.-Y.C., P.N.), Harvard Medical School; and Department of Neurology (L.M.V.R.M., A.J.C., S.S.C., D.B.H., M.T.B., M.B.W.), Massachusetts General Hospital, Boston
| | - Andrew J Cole
- From Harvard-MIT Health Sciences and Technology (E.L.B., L.-Y.C., P.N.), Harvard Medical School; and Department of Neurology (L.M.V.R.M., A.J.C., S.S.C., D.B.H., M.T.B., M.B.W.), Massachusetts General Hospital, Boston
| | - Sydney S Cash
- From Harvard-MIT Health Sciences and Technology (E.L.B., L.-Y.C., P.N.), Harvard Medical School; and Department of Neurology (L.M.V.R.M., A.J.C., S.S.C., D.B.H., M.T.B., M.B.W.), Massachusetts General Hospital, Boston
| | - Daniel B Hoch
- From Harvard-MIT Health Sciences and Technology (E.L.B., L.-Y.C., P.N.), Harvard Medical School; and Department of Neurology (L.M.V.R.M., A.J.C., S.S.C., D.B.H., M.T.B., M.B.W.), Massachusetts General Hospital, Boston
| | - Matt T Bianchi
- From Harvard-MIT Health Sciences and Technology (E.L.B., L.-Y.C., P.N.), Harvard Medical School; and Department of Neurology (L.M.V.R.M., A.J.C., S.S.C., D.B.H., M.T.B., M.B.W.), Massachusetts General Hospital, Boston
| | - M Brandon Westover
- From Harvard-MIT Health Sciences and Technology (E.L.B., L.-Y.C., P.N.), Harvard Medical School; and Department of Neurology (L.M.V.R.M., A.J.C., S.S.C., D.B.H., M.T.B., M.B.W.), Massachusetts General Hospital, Boston.
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Shan LH, An XY, Xu MM, Fan SP, Zhong H, Ni P, Chi H. [Analysis on the trend of innovation and development in the field of ophthalmology]. Zhonghua Yan Ke Za Zhi 2018; 54:452-463. [PMID: 29895120 DOI: 10.3760/cma.j.issn.0412-4081.2018.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To systematically analyze the innovation and development trend in the field of ophthalmology. Methods: The latest ophthalmology funding program from the National Eye Institute and National Natural Science Foundation of China, and funding project for 2012 to 2016 from the National Institutes of Health, National Natural Science Foundation of China and National key research and development plan of China was collected. Using the comparative analysis method, the major ophthalmology funding areas at home and abroad were analyzed. Papers published in 2012 to 2016 in the field of ophthalmology were collected from the Web of Science Core Collection, among which ESI highly cited papers and hot papers were particularly selected. Using bibliometric methods, the time trend of the number of papers and the citation frequency were analyzed. Using the co-occurrence cluster analysis method, the continued focuses and emerging concerns of ophthalmology papers was analyzed. Results: The funding plan of the National Eye Institute mainly covers nine major diseases in ophthalmology. NSFC focuses on retinal damage and repair mechanisms. The National Key Research and Development Program of China focuses on research on high-end ophthalmic implants. NIH continues to focus on the molecular mechanisms of blinding eye disease such as diabetic retinopathy, age-related macular degeneration, glaucoma, corneal disease and cataracts, basic research in genetics, and advanced diagnostic techniques such as imaging. Latest areas of interest involve gene editing techniques and the application of stem cell technology in ophthalmology. In China, research and application of stem cells in ophthalmic diseases, intraocular sustained-release drug carrier, and precision medicine research in ophthalmology are emerging areas of funding. In 2012 to 2016, research topics of 168 papers collected by ESI focused on macular degeneration, retinal diseases, glaucoma and other eye diseases. How to quickly promote new drugs and new technological achievements to the clinical application is a problem in the field of ophthalmology. How to change the ophthalmology clinic model, so as to provide patients with convenient and quality service, has become a research topic that needs to be given attention to. Conclusions: Based on the multidimensional analysis of innovation and development in the field of ophthalmology, cross application and integration of ophthalmology and high - tech fields such as advanced imaging technology, stem cell technology, gene editing technology, molecular targeting, and artificial intelligence will provide a strong basis for the enhancement of China's ophthalmology research innovation and international competitiveness. Research efforts for ophthalmic transformation should be strengthened, in order to realize the clinical application of the achievements as soon as possible. (Chin J Ophthalmol, 2018, 54: 452-463).
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Affiliation(s)
- L H Shan
- Institute of Medical Information, Chinese Academy of Medical Sciences, Beijing 100020, China
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Su Z, Wang T, Zhu H, Zhang P, Han R, Liu Y, Ni P, Shen H, Xu W, Xu H. Corrigendum to "HMGB1 modulates Lewis cell autophagy and promotes cell survival via RAGE-HMGB1-Erk1/2 positive feedback during nutrient depletion" [Immunobiology 220 May (5) (2015) 539-44]. Immunobiology 2017; 223:258. [PMID: 29108874 DOI: 10.1016/j.imbio.2017.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Z Su
- The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China; Department of Immunology & Laboratory Immunology, Jiangsu University, Zhenjiang 212013, China.
| | - T Wang
- The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China; Department of Immunology & Laboratory Immunology, Jiangsu University, Zhenjiang 212013, China
| | - H Zhu
- Department of Immunology & Laboratory Immunology, Jiangsu University, Zhenjiang 212013, China; Department of Immunology, The Fourth Military Medical University, Xi'an 710032, China
| | - P Zhang
- The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China; Department of Immunology & Laboratory Immunology, Jiangsu University, Zhenjiang 212013, China
| | - R Han
- Department of Immunology, The Fourth Military Medical University, Xi'an 710032, China
| | - Y Liu
- The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - P Ni
- The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China; Department of Immunology & Laboratory Immunology, Jiangsu University, Zhenjiang 212013, China
| | - H Shen
- The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - W Xu
- The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - H Xu
- The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China; Department of Immunology & Laboratory Immunology, Jiangsu University, Zhenjiang 212013, China.
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Zeng Y, Huang C, Ni P, Liu L, Xiao Y, Zhang J. Silver-Catalyzed Double Hydrocarbonation of 2-Trifluoromethyl-1,3-Conjugated Enynes with 1,3-Dicarbonyl Compounds: Synthesis of Ring-Trifluoromethylated Cyclopentene. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700752] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yu Zeng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
| | - Chaoqian Huang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
| | - Peiyun Ni
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
| | - Lu Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
| | - Yuanjing Xiao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry, CAS.; 345 Lingling Road Shanghai 200032 People's Republic of China
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Jacob M, Ni P, Leritz E, Driver J, Leveille S, Jette A, Bean J. MULTI-MORBIDITY PATTERNS AND DISABLEMENT SEVERITY AMONG MOBILITY LIMITED OLDER ADULTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- M.E. Jacob
- Health and Disability Research Institute, Boston University, Brookline, Massachusetts,
- New England GRECC, VA Boston Healthcare System, Boston, Massachusetts,
- Harvard Medical School, Boston, Massachusetts,
| | - P. Ni
- Health and Disability Research Institute, Boston University, Brookline, Massachusetts,
| | - E. Leritz
- New England GRECC, VA Boston Healthcare System, Boston, Massachusetts,
- Harvard Medical School, Boston, Massachusetts,
| | - J. Driver
- New England GRECC, VA Boston Healthcare System, Boston, Massachusetts,
- Harvard Medical School, Boston, Massachusetts,
| | - S.G. Leveille
- University of Massachusetts Boston, Boston, Massachusetts
| | - A.M. Jette
- Health and Disability Research Institute, Boston University, Brookline, Massachusetts,
| | - J.F. Bean
- New England GRECC, VA Boston Healthcare System, Boston, Massachusetts,
- Harvard Medical School, Boston, Massachusetts,
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Su Z, Ni P, Zhou C, Wang J. Myeloid-Derived Suppressor Cells in Cancers and Inflammatory Diseases: Angel or Demon? Scand J Immunol 2016; 84:255-261. [PMID: 27541573 DOI: 10.1111/sji.12473] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Revised: 07/29/2016] [Accepted: 08/16/2016] [Indexed: 02/06/2023]
Affiliation(s)
- Z. Su
- Department of Immunology; Jiangsu University; Zhenjiang China
- The Central Laboratory; The Fourth Affiliated Hospital of Jiangsu University; Zhenjiang China
| | - P. Ni
- Department of Immunology; Jiangsu University; Zhenjiang China
- The Central Laboratory; The Fifth Affiliated Hospital of Nantong University; Taizhou China
| | - C. Zhou
- The Central Laboratory; The Fifth Affiliated Hospital of Nantong University; Taizhou China
| | - J. Wang
- Department of Immunology; Jiangsu University; Zhenjiang China
- The Central Laboratory; The Fourth Affiliated Hospital of Jiangsu University; Zhenjiang China
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Mulcahey MJ, Slavin MD, Ni P, Vogel LC, Thielen CC, Coster WJ, Jette AM. The Pediatric Measure of Participation (PMoP) short forms. Spinal Cord 2016; 54:1183-1187. [DOI: 10.1038/sc.2016.68] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 03/14/2016] [Accepted: 03/30/2016] [Indexed: 11/09/2022]
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Kappos L, Arnold D, Bar-Or A, Camm J, Derfuss T, Kieseier B, Sprenger T, Greenough K, Ni P, Harada T. MT-1303, a novel selective s1p1 receptor modulator in RRMS - results of a placebo controlled, double blind phase II trial (momentum). J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.09.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kong F, Zheng D, She P, Ni P, Zhu H, Xu H, Su Z. Porphyromonas gingivalis B cell Antigen Epitope Vaccine, pIRES-ragB'-mGITRL, Promoted RagB-Specific Antibody Production and Tfh Cells Expansion. Scand J Immunol 2015; 81:476-82. [PMID: 25689343 DOI: 10.1111/sji.12281] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 01/27/2015] [Indexed: 11/30/2022]
Abstract
The outer membrane protein RagB is one of the major virulence factors of Porphyromonas gingivalis (P. gingivalis). To prevent periodontitis and associated systemic diseases induced by P. gingivalis, we built B cell antigen epitope vaccine characterized by pIRES-ragB'-mGITRL to induce a protective immune responses. The B cell antigen epitope and scrambled peptide of ragB were predicted, cloned into pIRES and constructed pIRES-ragB', pIRES-scrambled epitopes and pIRES-ragB'-mGITRL. pIRES-ragB'-mGITRL was transfected into COS-7 cells. Subsequently, the 6-week-old female BALB/c mice were challenged by P. gingivalis following three time immunization by pIRES, pIRES-ragB', pIRES-scrambled epitopes and pIRES-ragB'-mGITRL. The levels of RagB-specific antibody in the serum and Tfh cells in the spleen were measured by ELISA and flow cytometry, respectively. And higher levels of RagB-specific IgG were produced in the immunized mice with pIRES-ragB'-mGITRL. Additionally, the number of Tfh cells was also expanded and lesions were diminished in pIRES-ragB'-mGITRL mice comparing with control groups. Our results clearly demonstrated that P. gingivalis B cell antigen epitope vaccine, pIRES-ragB'-mGITRL, could induce protective immune responses. Furthermore, our data also indicated that pIRES-ragB'-mGITRL was a potential therapeutic vaccine against P. gingivalis.
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Affiliation(s)
- F Kong
- Department of Stomatology, the Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - D Zheng
- Department of Stomatology, the Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - P She
- Department of Stomatology, the Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - P Ni
- Department of Immunology & Laboratory Immunology, Jiangsu University, Zhenjiang, China
| | - H Zhu
- Department of Immunology & Laboratory Immunology, Jiangsu University, Zhenjiang, China
| | - H Xu
- Department of Immunology & Laboratory Immunology, Jiangsu University, Zhenjiang, China
| | - Z Su
- Department of Immunology & Laboratory Immunology, Jiangsu University, Zhenjiang, China
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Xu X, Zhu H, Wang T, Sun Y, Ni P, Liu Y, Tian S, Amoah Barnie P, Shen H, Xu W, Xu H, Su Z. Exogenous High-Mobility Group Box 1 Inhibits Apoptosis and Promotes the Proliferation of Lewis Cells via RAGE/TLR4-Dependent Signal Pathways. Scand J Immunol 2014; 79:386-94. [PMID: 24673192 DOI: 10.1111/sji.12174] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 03/25/2014] [Indexed: 01/16/2023]
Affiliation(s)
- X. Xu
- The Central Laboratory; The Fourth Affiliated Hospital of Jiangsu University; Zhenjiang China
- Department of Immunology & Laboratory Immunology; Jiangsu University; Zhenjiang China
| | - H. Zhu
- Department of Laboratory Medicine; The Affiliated Hospital of Jiangsu University; Zhenjiang China
| | - T. Wang
- The Central Laboratory; The Fourth Affiliated Hospital of Jiangsu University; Zhenjiang China
- Department of Immunology & Laboratory Immunology; Jiangsu University; Zhenjiang China
| | - Y. Sun
- The Central Laboratory; The Fourth Affiliated Hospital of Jiangsu University; Zhenjiang China
- Department of Immunology & Laboratory Immunology; Jiangsu University; Zhenjiang China
| | - P. Ni
- The Central Laboratory; The Fourth Affiliated Hospital of Jiangsu University; Zhenjiang China
- Department of Immunology & Laboratory Immunology; Jiangsu University; Zhenjiang China
| | - Y. Liu
- The Central Laboratory; The Fourth Affiliated Hospital of Jiangsu University; Zhenjiang China
| | - S. Tian
- The Central Laboratory; The Fourth Affiliated Hospital of Jiangsu University; Zhenjiang China
- Department of Immunology & Laboratory Immunology; Jiangsu University; Zhenjiang China
| | - P. Amoah Barnie
- The Central Laboratory; The Fourth Affiliated Hospital of Jiangsu University; Zhenjiang China
- Department of Immunology & Laboratory Immunology; Jiangsu University; Zhenjiang China
| | - H. Shen
- Department of Laboratory Medicine; The Affiliated People's Hospital of Jiangsu University; Zhenjiang China
| | - W. Xu
- The Central Laboratory; The Fourth Affiliated Hospital of Jiangsu University; Zhenjiang China
| | - H. Xu
- The Central Laboratory; The Fourth Affiliated Hospital of Jiangsu University; Zhenjiang China
- Department of Immunology & Laboratory Immunology; Jiangsu University; Zhenjiang China
| | - Z. Su
- The Central Laboratory; The Fourth Affiliated Hospital of Jiangsu University; Zhenjiang China
- Department of Immunology & Laboratory Immunology; Jiangsu University; Zhenjiang China
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Running WE, Ni P, Kao CC, Reilly JP. Chemical reactivity of brome mosaic virus capsid protein. J Mol Biol 2012; 423:79-95. [PMID: 22750573 DOI: 10.1016/j.jmb.2012.06.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Revised: 06/01/2012] [Accepted: 06/20/2012] [Indexed: 12/12/2022]
Abstract
Viral particles are biological machines that have evolved to package, protect, and deliver the viral genome into the host via regulated conformational changes of virions. We have developed a procedure to modify lysine residues with S-methylthioacetimidate across the pH range from 5.5 to 8.5. Lysine residues that are not completely modified are involved in tertiary or quaternary structural interactions, and their extent of modification can be quantified as a function of pH. This procedure was applied to the pH-dependent structural transitions of brome mosaic virus (BMV). As the reaction pH increases from 5.5 to 8.5, the average number of modified lysine residues in the BMV capsid protein increases from 6 to 12, correlating well with the known pH-dependent swelling behavior of BMV virions. The extent of reaction of each of the capsid protein's lysine residues has been quantified at eight pH values using coupled liquid chromatography-tandem mass spectrometry. Each lysine can be assigned to one of three structural classes identified by inspection of the BMV virion crystal structure. Several lysine residues display reactivity that indicates their involvement in dynamic interactions that are not obvious in the crystal structure. The influence of several capsid protein mutants on the pH-dependent structural transition of BMV has also been investigated. Mutant H75Q exhibits an altered swelling transition accompanying solution pH increases. The H75Q capsids show increased reactivity at lysine residues 64 and 130, residues distal from the dimer interface occupied by H75, across the entire pH range.
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Affiliation(s)
- W E Running
- Department of Chemistry, Indiana University, Bloomington, IN 47405, USA
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Guo X, Liu W, Pan Y, Ni P, Ji J, Guo L, Zhang J, Wu J, Jiang J, Chen X, Cai Q, Li J, Zhang J, Gu Q, Liu B, Zhu Z, Yu Y. Homeobox gene IRX1 is a tumor suppressor gene in gastric carcinoma. Oncogene 2010; 29:3908-20. [PMID: 20440264 DOI: 10.1038/onc.2010.143] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The IRX1 tumor suppressor gene is located on 5p15.33, a cancer susceptibility locus. Loss of heterozygosity of 5p15.33 in gastric cancer was identified in our previous work. In this study, we analyzed the molecular features and function of IRX1. We found that IRX1 expression was lost or reduced in gastric cancer. However, no mutations were identified in IRX1-encoding regions. IRX1 transcription was suppressed by hypermethylation, and the expression of IRX1 mRNA was partially restored in gastric cancer cells after 5-Aza-dC treatment. Restoring IRX1 expression in SGC-7901 and NCI-N87 gastric cancer cells inhibited growth, invasion and tumorigenesis in vitro and in vivo. We identified a number of target genes by global microarray analysis after IRX1 transfection combined with real-time PCR and chromatin immunoprecipitation assay. BDKRB2, an angiogenesis-related gene, HIST2H2BE and FGF7, cell proliferation and invasion-related genes, were identified as direct IRX1 target genes. The hypermethylation of IRX1 was not only detected in primary gastric cancer tissues but also in the peripheral blood of gastric cancer patients, suggesting IRX1 could potentially serve as a biomarker for gastric cancer.
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Affiliation(s)
- X Guo
- Department of Surgery of Shanghai Ruijin Hospital and Shanghai Institute of Digestive Surgery, Shanghai, PR China
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Valentine JF, Fedorak RN, Feagan B, Fredlund P, Schmitt R, Ni P, Humphries TJ. Steroid-sparing properties of sargramostim in patients with corticosteroid-dependent Crohn's disease: a randomised, double-blind, placebo-controlled, phase 2 study. Gut 2009; 58:1354-62. [PMID: 19505878 DOI: 10.1136/gut.2008.165738] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
OBJECTIVE Although treatment with corticosteroids induces remission in Crohn's disease, prolonged exposure to corticosteroids is undesirable. This randomised clinical trial evaluated the efficacy of recombinant human granulocyte-macrophage colony-stimulating factor (sargramostim), an activator of innate immunity, in corticosteroid-dependent patients with Crohn's disease. DESIGN Patients were randomised in a 2:1 ratio, to sargramostim 6 microg/kg subcutaneously once daily or placebo for up to 22 weeks. The study consisted of (1) an adjunctive phase (weeks 1-4) in which patients received study drug plus corticosteroid therapy; (2) a forced corticosteroid tapering phase (weeks 4-14); and (3) an observation phase (4 weeks) in which patients received study drug plus prednisone < or =7.5 mg. The primary endpoint was corticosteroid-free remission (Crohn's Disease Activity Index (CDAI) < or =150) 4 weeks after corticosteroid elimination. Secondary endpoints were corticosteroid-free response (CDAI decreased by > or =100) and induction of remission in patients who reduced the dose of corticosteroid to 2.5-7.5 mg. RESULTS Eighty-seven patients were randomised to sargramostim and 42 to placebo. Significantly more sargramostim-treated patients than placebo patients achieved corticosteroid-free remission (18.6% vs 4.9%; p = 0.03). Similar differences were seen for corticosteroid-free response and in patients who tapered corticosteroids to 2.5-7.5 mg/day. Sargramostim treatment was also associated with significant improvements in health-related quality of life. Patients who received sargramostim were more likely to experience musculoskeletal pain, injection site reactions and dyspnoea. CONCLUSIONS Sargramostim was more effective than placebo for inducing corticosteroid-free remission in patients with Crohn's disease with corticosteroid dependence. Sargramostim may provide significant benefit in this population if these findings are confirmed.
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Affiliation(s)
- J F Valentine
- Gastroenterology, Hepatology & Nutrition, University of Florida, 1600 SW Archer Rd, Rm HD 602, Gainesville, FL 32610, USA.
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Preston R, Norris P, Alonso A, Ni P, Hanes V, Karara A. PO22-719 NOVEL HORMONE THERAPY DROSPIRENONE-ESTRADIOL (DRSP/E2) LOWERS BLOOD PRESSURE AND REDUCES POTASSIUM LOSS IN HYPERTENSIVE POSTMENOPAUSAL WOMEN RECEIVING HYDROCHLOROTHIAZIDE (HCTZ). ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71729-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ulrich A, Adonin A, Jacoby J, Turtikov V, Fernengel D, Fertman A, Golubev A, Hoffmann DHH, Hug A, Krücken R, Kulish M, Menzel J, Morozov A, Ni P, Nikolaev DN, Shilkin NS, Ternovoi VY, Udrea S, Varentsov D, Wieser J. Excimer laser pumped by an intense, high-energy heavy-ion beam. Phys Rev Lett 2006; 97:153901. [PMID: 17155326 DOI: 10.1103/physrevlett.97.153901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2006] [Indexed: 05/12/2023]
Abstract
High-energy heavy ions are an ideal tool to generate homogeneously excited, extended volumes of nonthermal plasmas. Here, the high-energy loss (dE/dx) and absolute power deposition of heavy ions interacting with matter has been used to pump an ultraviolet laser. A pulsed 70 MeV/u 238U beam with up to 2.5 x 10(9) particles in approximately 100 ns beam bunches was stopped in a 1.2 m long laser cell filled with a 1.6 bar Ar-Kr-F2 mixture (typically 50%:49.9%:0.1%). Laser effect on the 248 nm KrF* excimer transition is clearly demonstrated.
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Affiliation(s)
- A Ulrich
- Physik Department E12, Technische Universität München, James Franck Strasse 1. D-85748 Garching, Germany
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Udrea S, Shilkin N, Fortov VE, Hoffmann DHH, Jacoby J, Kulish MI, Mintsev V, Ni P, Nikolaev D, Tahir NA, Varentsov D. Electrical resistivity measurements of heavy ion beam generated high energy density aluminium. ACTA ACUST UNITED AC 2006. [DOI: 10.1088/0305-4470/39/17/s68] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Tahir NA, Deutsch C, Fortov VE, Gryaznov V, Hoffmann DHH, Kulish M, Lomonosov IV, Mintsev V, Ni P, Nikolaev D, Piriz AR, Shilkin N, Spiller P, Shutov A, Temporal M, Ternovoi V, Udrea S, Varentsov D. Proposal for the study of thermophysical properties of high-energy-density matter using current and future heavy-ion accelerator facilities at GSI Darmstadt. Phys Rev Lett 2005; 95:035001. [PMID: 16090748 DOI: 10.1103/physrevlett.95.035001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2005] [Revised: 05/03/2005] [Indexed: 05/03/2023]
Abstract
The subject of high-energy-density (HED) states in matter is of considerable importance to numerous branches of basic as well as applied physics. Intense heavy-ion beams are an excellent tool to create large samples of HED matter in the laboratory with fairly uniform physical conditions. Gesellschaft für Schwerionenforschung, Darmstadt, is a unique worldwide laboratory that has a heavy-ion synchrotron, SIS18, that delivers intense beams of energetic heavy ions. Construction of a much more powerful synchrotron, SIS100, at the future international facility for antiprotons and ion research (FAIR) at Darmstadt will lead to an increase in beam intensity by 3 orders of magnitude compared to what is currently available. The purpose of this Letter is to investigate with the help of two-dimensional numerical simulations, the potential of the FAIR to carry out research in the field of HED states in matter.
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Affiliation(s)
- N A Tahir
- Gesellschaft für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany
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Thring RW, Ni P, Aharoni SM. MOLECULAR WEIGHT EFFECTS OF THE SOFT SEGMENT ON THE ULTIMATE PROPERTIES OF LIGNIN-DERIVED POLYURETHANES. INT J POLYM MATER PO 2004. [DOI: 10.1080/00914030490267627] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ni P, Shen F, Meng W, Jiang F, Feng S. [Complex segregation analysis of systemic lupus erythematosus]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2001; 18:343-6. [PMID: 11592039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
OBJECTIVE To explore the genetic model of systemic lupus erythematosus(SLE). METHODS Complex segregation analysis was performed by using statistical analysis for genetic epidemiology-REGTL(SAGE-REGTL). The genetic model and gene frequency were estimated. 300 pedigrees with SLE were collected from 300 patients as probands. RESULTS The complex segregation analysis found the genetic model of SLE to be additive,the gene frequency 0.336. The authors believe the possibility of some different modes coexisting under different circumstances. The genetic effect on young man is stronger than that on old one. CONCLUSION This study suggests that the genetic mode of SLE could be the major gene trait, and additive mode is the best fitted one.
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Affiliation(s)
- P Ni
- Department of Maternal and Child Health, Shanghai Medical University, Shanghai, 200032 P.R. China.
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Guo X, Ni P, Li L. [Association between asthma and the polymorphism of HLA-DQ genes]. Zhonghua Jie He He Hu Xi Za Zhi 2001; 24:139-41. [PMID: 11802952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To investigate association between asthma and HLA-DQ genes in Chinese asthma family. METHODS HLA genotyping was done for HLA-DQ using polymerase chain reaction-sequence specific primers (PCR-SSP) in 98 members of 32 Chinese asthma families and 67 normal controls. RESULTS The allele frequencies of DQA1 * 0101 and DQA1 * 0601 in asthmatics (40.0% and 45.0% respectively) were significantly higher than those in normal controls (16.4% and 13.4% respectively; chi(2) = 6.1860, P < 0.05, RR = 3.39 and chi(2) = 11.609 0, P < 0.01, RR = 5.27 respectively). The allele frequencies of DQB1 * 0303 and DQB1 * 0601 in asthmatics (55.0% and 47.5% respectively) were also significantly higher than those in normal controls (13.7% and 13.7% respectively; chi(2) = 15.740 0, P < 0.01, RR = 7.68 and chi(2) = 10.930 0, P < 0.01, RR = 5.69 respectively). The allele frequency of DQ * 0201 (39.4%) was significantly higher in members with positive specific IgE response to dermatophagoides than that in non-atopy members (12.0%) in asthma family (t = 2.382 5, P < 0.05). CONCLUSION HLA-DQA1* 0101, DQA1 * 0601 and HLA-DQB1 * 0303, DQB1 * 0601 may be the susceptible alleles of asthma. HLA-DQB1 * 0201 allele may limit the specific IgE response to dermatophagoides.
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Affiliation(s)
- X Guo
- Department of Respiratory Medicine, Ruijin Hospital, Shanghai Second Medical University, Shanghai 200025, China
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Ni P, Shen F, Meng W, Jiang F, Feng S. [The association and linkage analysis between the FcgammaR II a-131 and system lupus erythematosus]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2000; 17:409-12. [PMID: 11110978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
OBJECTIVE To shed light on the relationship between FcgammaR II a-131 and systemic lupus erythematosus(SLE) in southern Chinese Han population. METHODS A population-based and family-based study was carried out. FcgammaR II a-131 of each subject was measured by using PCR-allele specific oligonucleotide hybridization(ASO) method. RESULTS (1) The distribution of FcgammaR II A-131 genotype in cases is significantly different from that in controls (P<0.05). So is the frequency of FcgammaR II aR-131 allele (P < 0.01) which suggests that subjects who have R131 allele tend to be more susceptible to SLE. The subjects with R/R131 homozygous genotype have a higher risk of suffering from SLE. (2) The distribution of FcgammaR II a-131 varies in different races, with identical distribution type among Chinese and Japanese. (3) The results of family-based association analysis and transmitted/disequilibrium test(TDT) suggest that there is not any linkage evidence between FcgammaR II a-131 and SLE. Possibly, the sample size was too small to get positive result. CONCLUSION This study suggests that FcgammaR II a-131 is a major factor predisposing to the development of SLE in southern Chinese Han population.
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Affiliation(s)
- P Ni
- Department of Epidemiology, Shanghai Medical University, Shanghai, 200032 P.R.China
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Chu R, Ni P, Ni M, Shen F. Genetic epidemiology study of pathological myopia. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2000; 17:178-80. [PMID: 10837519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
OBJECTIVE To explore the genetic epidemiology of pathological myopia (PM), including hereditary and genetic model. METHODS The simple segregation analysis was done by SEGRANB. The values of segregation ratio p and the proportion of sporadic cases x were estimated. The complex segregation analysis was performed using SAGE-REGD. The genetic model and gene frequency were estimated. The 62 pedigrees with PM were random samples from hospital patients. RESULTS By simple segregation analysis, the genetic pattern of N*N is autosomal recessive and the frequency of sporadic cases is approximately 65.72%. The genetic pattern of A*N may be autosomal recessive (but autosomal dominant cannot be excluded), the frequency of sporadic cases is approximately 35.14%. By complex segregation analysis, the genetic model of PM is autosomal recessive and the gene frequency is 0.147385. CONCLUSION PM is compatible with autosomal recessive inheritance (autosomal dominant not excluded ), the sporadic cases are existent and the gene frequency is 0.147385.
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Affiliation(s)
- R Chu
- Department of Ophthalmology, E & ENT Hospital, Shanghai Medical University, Shanghai, 200031 P. R. China.
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Pensky M, Ni P. Extended linear empirical bayes estimation. COMMUN STAT-THEOR M 2000. [DOI: 10.1080/03610920008832503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Guo X, Ni P, Li L. [Studies of microsatellite instability and loss of heterozygosity at chromosome 17 in non-small cell lung carcinoma]. Zhonghua Jie He He Hu Xi Za Zhi 1999; 22:743-5. [PMID: 11776784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To identify the presence of microsatellite instability (MI) and loss of heterozygosity (LOH) in non-small cell lung carcinoma (NSCLC). METHODS Four microsatellite markers TP53(17p13.1), THRA1 (17q11.2-12), D17S579(17q12-21) and D17S855(17q21) were used to examine 35 cases of NSCLC tumor-normal paired tissues for MI and LOH at chromosome 17 using PCR based analysis. RESULTS 22 of 35 tumors(63%) displayed MI or LOH. 14 tumors(40%) exhibited MI, 11 tumors(31%) exhibited LOH, while 3 tumors (9%) exhibited MI and LOH concurrently. The frequency of MI or LOH was obviously higher in the early-stage(stages I and II, 79%) than in the advanced-stage (stage III, 44%), P < 0.05. However, the frequency of MI or LOH had no significant difference between high-grade differentiated NSCLC tumors and low-grade ones, P > 0.05. No relationship was observed between the presence of MI or LOH and the histologic subtype of NSCLC, P > 0.05. CONCLUSIONS The results suggest that MI and LOH at chromosome 17 may play a significant role in the development of NSCLC. The high frequency of MI or LOH in the early-stage tumors indicates that these genetic alterations could occur early during NSCLC development.
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Affiliation(s)
- X Guo
- Department of Respiratory Medicine, Ruijin Hospital, Shanghai Second Medical University, Shanghai 200025
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Abstract
Oil containing microcapsules were prepared by using phthaloyl dichloride as an oil-soluble monomer and diethylene triamine (DETA) as a water-soluble monomer. The diameter of the microcapsules decreased and their distribution became narrower and sharper as the emulsifying time was increased within the initial period of 45 s, beyond which no appreciable changes in the diameter and its distribution were observed. Once DETA was introduced into the aqueous solution to initiate the interfacial polycondensation reaction, reducing the stirring speed diminished the formation of the membrane fragments, but resulted in an increase in the microcapsule diameter. This indicates that the strength of the initial membrane is not strong enough to prevent the microcapsules from coalescing. Raising the volume fraction of the dispersed phase led to a larger diameter and a wider distribution of the microcapsules. When ortho-, meta- or para-phthaloyl dichloride was used as the oil-soluble monomer, both the diameter and the zeta-potential of the microcapsules decreased in the order: ortho-->meta-->para-, indicating that the steric effect of the monomers plays an important role in the microencapsulation process.
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Affiliation(s)
- M Zhang
- Department of Chemical Engineering, Suzhou University, P.R. China
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40
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Abstract
Oily liquids were microencapsulated within polyphthalamide membranes with dodecyl sulphonate sodium (DSS) as an emulsifier. The mean diameter and the distribution, as well as the zeta-potential, of the microcapsules were analysed. It was found that the mean diameter decreases with an increase in stirring speed and emulsifier concentration during the emulsification step. The addition of DSS to aqueous phase resulted in a decrease in zeta-potential of the microcapsules.
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Affiliation(s)
- N Yan
- Department of Chemical Engineering, Suzhou University, PR China
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Abstract
Polyurea microcapsules containing oily substances were prepared by using cyanate and polyamine as the monomers with non-ionic surfactant as the emulsifiers. Results showed that TDI-DETA microcapsules had the best stability. The mean diameter decreased and the size distribution curves became narrower and sharper as the stirring speed and the emulsifier concentration during emulsification increased. Addition of Tween 80 to aqueous solution containing OP led to an increase in microcapsule diameter and wider distribution of microcapsules due to the changes in interfacial tension. The isoelectric point of the polyurea microcapsules was found to be pH 5.8.
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Affiliation(s)
- N Yan
- Department of Chemical Engineering, Suzhou University, PR China
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42
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Yan N, Zhang M, Ni P. A study of the stability of W/O/W multiple emulsions. J Microencapsul 1992; 9:143-51. [PMID: 1593397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The stability of W/O/W emulsions has been studied in batch agitators. The surfactants suitable for W/O/W emulsions were screened and the factors affecting the emulsion stability were also studied. Results showed that polyamine E644 was an excellent emulsifier for W/O emulsions since the emulsion stabilized by it has not only good stability but also shows smaller swelling. The stability of the emulsion increases with increase in membrane viscosity and concentration of surfactant, but decreases with increase in concentration of the internal reagent in the internal phase and the carriers in the membrane. Raising the agitation speed and the time for preparing the W/O emulsion is beneficial to membrane stability due to formation of smaller internal droplets, but raising the speed for dispersing the W/O emulsion in the external phase results in an increase in membrane breakage.
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Affiliation(s)
- N Yan
- Department of Chemical Engineering, Suzhou University, China
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43
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Ni P, Guyon F, Caude M, Rosset R. Automatic Determination of Clomipramine, Imipramine and Their Demethylated Metabolites in Plasma by High Performance Liquid Chromatography. ACTA ACUST UNITED AC 1988. [DOI: 10.1080/01483918808068366] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Ni P, Guyon F, Caude M, Rosset R. Automatic determination of urinary 4-hydroxy-3-methoxymandelic (vanillylmandelic) acid by liquid chromatography with electrochemical detection. J Chromatogr 1988; 424:255-62. [PMID: 3372620 DOI: 10.1016/s0378-4347(00)81102-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
An automated liquid chromatographic method for the determination of urinary concentrations of 4-hydroxy-3-methoxymandelic acid (VMA) is described. Urine samples are purified by solid-phase extraction on an anion-exchange cartridge and automated on-line chromatographic elution is carried out using a Varian AASP (advanced automated sample processor) system. The column effluent is monitored with an electrochemical detector using a glassy carbon working electrode. The method allows the determination of VMA in 0.05 ml of normal urine with a relative standard deviation of less than 3%. The analysis time can be shortened by use of back-flushing technique, and the correlation with a classical (but non-automated) VMA analysis method is excellent.
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Affiliation(s)
- P Ni
- Laboratoire de Chimie Analytique de l'Ecole Supérieure de Physique, Paris, France
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