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Wang M, Yang X, Liu D, Dang P, Huang X, Zheng J, Ding F, Ding X, Wang X. Altered brain iron deposition in patients with minimal hepatic encephalopathy: an MRI quantitative susceptibility mapping study. Clin Radiol 2024; 79:e369-e375. [PMID: 38071103 DOI: 10.1016/j.crad.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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 10/08/2023] [Accepted: 11/06/2023] [Indexed: 02/15/2024]
Abstract
AIM To explore the use of quantitative susceptibility mapping (QSM) in assessing changes in brain iron deposits and their association with cognitive function in patients with minimal hepatic encephalopathy (MHE). MATERIALS AND METHODS The study cohort comprised 27 cases with hepatitis B-associated cirrhosis with MHE (MHE group), 25 with hepatitis B-associated cirrhosis without MHE (NMHE group), and 25 healthy controls (HC group). Iron deposits in the bilateral frontal white matter, caudate nucleus (CN), putamen, globus pallidus, thalamus, red nucleus, substantia nigra (SN), hippocampus, and dentate nucleus were measured by QSM. The associations between iron deposition with the time taken to complete number connection tests A (NCT-A) and the score on digital-symbol test (DST) were analysed. RESULTS Susceptibility values differed significantly in the bilateral CN, left thalamus, right SN, and left hippocampus in the MHE group compared with the other groups and were positively associated with the times taken to complete the NCT-A in the bilateral CN, left thalamus, and right SN and negatively associated with DST scores in the bilateral CN, left TH, and left HP. CONCLUSION Reduced cognitive function in MHE patients was significantly associated with abnormally increased iron deposition in certain brain areas. The quantification of brain iron deposition by QSM may thus be an objective and accurate means of evaluating MHE.
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Affiliation(s)
- M Wang
- Department of Radiology, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - X Yang
- School of Clinical Medicine, Ningxia Medical University, Yinchuan 750004, China
| | - D Liu
- Department of Traditional Chinese Medicine Orthopedics and Traumatology, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - P Dang
- Department of Radiology, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - X Huang
- Department of Radiology, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - J Zheng
- School of Clinical Medicine, Ningxia Medical University, Yinchuan 750004, China
| | - F Ding
- Department of Radiology, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - X Ding
- Department of Infectious Diseases, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - X Wang
- Department of Radiology, General Hospital of Ningxia Medical University, Yinchuan 750004, China.
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Kaur R, Schick-Makaroff K, Dang P, Sasaki A, Neves P, Mucsi I, Gill J. Navigating Living Kidney Donation and Transplantation Among South Asian Canadians: The ACTION Project. Am J Kidney Dis 2024:S0272-6386(24)00011-8. [PMID: 38242424 DOI: 10.1053/j.ajkd.2023.11.009] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 11/02/2023] [Accepted: 11/14/2023] [Indexed: 01/21/2024]
Abstract
RATIONALE & OBJECTIVE South Asian (SA) Canadians with kidney failure have a 50%-77% lower likelihood of kidney transplant and are less likely to identify potential living donors (LDs). This study aimed to identify health system-, patient-, and community-level barriers and facilitators for accessing LD kidney transplantation in the SA community to inform the development of health system- and community-level interventions to address barriers. STUDY DESIGN Qualitative study. SETTING & PARTICIPANTS 20 SA recipients of an LD or deceased-donor kidney transplant, 10 SA LDs, and 41 general SA community members. ANALYTICAL APPROACH In-depth multilingual interviews were conducted with recipients and LDs. Gender-, language-, and age-stratified focus groups were conducted with general SA community members. Summative content analysis was used to analyze the data. RESULTS Hesitancy in approaching potential donors, fear about the health of potential LDs, information gaps, language barriers, and challenges evaluating out-of-country donors were highlighted as significant barriers by recipients, and financial concerns and information gaps were identified by donors. Cultural barriers in the SA community were highlighted by donors, recipients, and community members as critical factors when considering donation and transplant; women and elderly SA Canadians highlighted nuanced challenges. Participants reported generally a favorable perception of their health care teams, citing SA representation in the teams as important to providing culturally and linguistically sensitive care. LIMITATIONS Limited geographic, race, and cultural representation and reliance on virtual data collection. CONCLUSIONS This study highlights several culturally relevant barriers to donation and transplant that are potentially modifiable through patient-, health system-, and community-focused engagement and education.
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Affiliation(s)
- Reetinder Kaur
- Providence Health Care Research Institute, Vancouver, BC, Canada
| | | | - Phuc Dang
- Providence Health Care Research Institute, Vancouver, BC, Canada
| | - Ayumi Sasaki
- Providence Health Care Research Institute, Vancouver, BC, Canada
| | - Paula Neves
- Centre for Living Organ Donation, University Health Network, Toronto, ON, Canada
| | - Istvan Mucsi
- Ajmera Transplant Center, University Health Network, Toronto, ON, Canada; Division of Nephrology, University of Toronto, Toronto, ON, Canada
| | - Jagbir Gill
- Division of Nephrology, Department of Medicine, and Centre for Health Evaluation and Outcomes Sciences, University of British Columbia, Vancouver, BC, Canada.
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Oanh N, Huyen N, Dang P, Ton V, Hornick JL. Growth performance, carcass traits, meat quality and composition
in pigs fed diets supplemented with medicinal plants ( Bindens
pilosa L., Urena lobata L. and Ramulus cinnamomi) powder. J Anim Feed Sci 2021. [DOI: 10.22358/jafs/143106/2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Thinh N, Doan B, Dang P, Canh N, Giang N, Minh L, Do D. Modelling growth curve of Eastern spot-billed ducks
( Anas zonorhyncha) raised in Vietnam. J Anim Feed Sci 2021. [DOI: 10.22358/jafs/133959/2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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van Roode T, Pauly BM, Marcellus L, Strosher HW, Shahram S, Dang P, Kent A, MacDonald M. Values are not enough: qualitative study identifying critical elements for prioritization of health equity in health systems. Int J Equity Health 2020; 19:162. [PMID: 32933539 PMCID: PMC7493313 DOI: 10.1186/s12939-020-01276-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 09/02/2020] [Indexed: 11/10/2022] Open
Abstract
Background Health system policies and programs that reduce health inequities and improve health outcomes are essential to address unjust social gradients in health. Prioritization of health equity is fundamental to addressing health inequities but challenging to enact in health systems. Strategies are needed to support effective prioritization of health equity. Methods Following provincial policy recommendations to apply a health equity lens in all public health programs, we examined health equity prioritization within British Columbia health authorities during early implementation. We conducted semi-structured qualitative interviews and focus groups with 55 senior executives, public health directors, regional directors, and medical health officers from six health authorities and the Ministry of Health. We used an inductive constant comparative approach to analysis guided by complexity theory to determine critical elements for prioritization. Results We identified seven critical elements necessary for two fundamental shifts within health systems. 1) Prioritization through informal organization includes creating a systems value for health equity and engaging health equity champions. 2) Prioritization through formal organization requires explicit naming of health equity as a priority, designating resources for health equity, requiring health equity in decision making, building capacity and competency, and coordinating a comprehensive approach across levels of the health system and government. Conclusions Although creating a shared value for health equity is essential, health equity - underpinned by social justice - needs to be embedded at the structural level to support effective prioritization. Prioritization within government and ministries is necessary to facilitate prioritization at other levels. All levels within health systems should be accountable for explicitly including health equity in strategic plans and goals. Dedicated resources are needed for health equity initiatives including adequate resourcing of public health infrastructure, training, and hiring of staff with equity expertise to develop competencies and system capacity.
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Affiliation(s)
- Thea van Roode
- Canadian Institute for Substance Use Research, University of Victoria, PO Box 1700 STN CSC, Victoria, BC, V8W 2Y2, Canada.
| | - Bernadette M Pauly
- Canadian Institute for Substance Use Research, University of Victoria, PO Box 1700 STN CSC, Victoria, BC, V8W 2Y2, Canada.,School of Nursing, University of Victoria, PO Box 1700 STN CSC, Victoria, BC, Canada
| | - Lenora Marcellus
- School of Nursing, University of Victoria, PO Box 1700 STN CSC, Victoria, BC, Canada
| | - Heather Wilson Strosher
- Canadian Institute for Substance Use Research, University of Victoria, PO Box 1700 STN CSC, Victoria, BC, V8W 2Y2, Canada
| | - Sana Shahram
- Faculty of Health and Social Development, University of British Columbia, 1147 Research Road, Okanagan, Kelowna, BC, V1V 1V7, Canada
| | - Phuc Dang
- Canadian Institute for Substance Use Research, University of Victoria, PO Box 1700 STN CSC, Victoria, BC, V8W 2Y2, Canada
| | - Alex Kent
- Canadian Institute for Substance Use Research, University of Victoria, PO Box 1700 STN CSC, Victoria, BC, V8W 2Y2, Canada
| | - Marjorie MacDonald
- Canadian Institute for Substance Use Research, University of Victoria, PO Box 1700 STN CSC, Victoria, BC, V8W 2Y2, Canada.,School of Nursing, University of Victoria, PO Box 1700 STN CSC, Victoria, BC, Canada
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Agak G, Ceja-Garcia N, Dang P, Shah D, Teles R, Mouton A, Morselli M, Qin M, Kim J, Pellegrini M, Modlin R. 070 Antimicrobial Th17CTL targeting both Gram-positive and Gram-negative bacteria. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.146] [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: 11/16/2022]
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Davis JP, Leek J, Sweigart D, Dang P, Butts C, Sorensen R, Chen C, Lamb M. Measurements of Oleic Acid among Individual Kernels Harvested from Test Plots of Purified Runner and Spanish High Oleic Seed. ACTA ACUST UNITED AC 2017. [DOI: 10.3146/ps16-21.1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
ABSTRACT
Normal oleic peanuts are often found within commercial lots of high oleic peanuts when sampling among individual kernels. Kernels not meeting high oleic threshold could be true contamination with normal oleic peanuts introduced via poor handling, or kernels not meeting threshold could be immature and not fully expressing the trait. Beyond unintentional mixing, factors contributing to variation in oleic acid concentration in peanut kernels include market type, environment, maturity and/or kernel size; however, the relative influence of these factors, and their interactions, is not quantitatively well understood on the single kernel level. To better understand these factors while simultaneously excluding variation from unintentional mixing, seed from a high oleic spanish cultivar and seed from a high oleic runner cultivar were carefully purified via NIR technology. The purified seed were planted in environmentally controlled test plots to analyze the progeny for oleic acid chemistry. Post flowering, plot sections were either chilled (3.8 -5.0 C below ambient), maintained at ambient or heated (3.8-5.0 C above ambient) in the pod zone to characterize soil temperature effects on oleic acid chemistry development. Fully randomized (4 reps) plots included the purified high oleic spanish and runner cultivars, three soil temperatures, seed maturity (profile board), commercial kernel size classifications, and a late season flower termination protocol. At harvest, the oleic acid concentration of approximately 24,000 individual kernels were measured via NIR technology. Market type, temperature, maturity and size had a significant effect on high oleic chemistry among kernels. Late season flower termination significantly, and positively, influenced high oleic chemistry of runner peanuts, minimized the number of immature kernels not meeting high oleic threshold and resulted in elevated and more consistent distributions in this key chemistry; distributions that were more similar to those of the more botanically determinate, but lower yielding, spanish market type. Data from this study improves our understanding of expected natural variation in high oleic chemistry and suggests late season flower termination of runner peanuts is a viable strategy to maximize high oleic chemistry on the single kernel level.
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Affiliation(s)
- J. P. Davis
- Director of Technical Services, JLA International, Albany, GA USA, a subsidiary of IEH Laboratories, Lake Forest Park, WA 98155 and Adjunct Faculty, Dept. of Food, Bioprocessing & Nutrition Sciences, North Carolina State University, Raleigh, NC 27695
| | - J.M. Leek
- Chairman of the Board, JLA International, Albany, GA USA, a subsidiary of IEH Laboratories, Lake Forest Park, WA 98155
| | - D.S. Sweigart
- Dan S. Sweigart, The Hershey Company, Hershey, PA 17033
| | - P. Dang
- Research Biochemist, Research Agricultural Engineer, Research Agronomist, and Supervisory Research Food Technologist, respectively, USDA, ARS, National Peanut Research Laboratory, Dawson, GA 39842
| | - C.L. Butts
- Research Biochemist, Research Agricultural Engineer, Research Agronomist, and Supervisory Research Food Technologist, respectively, USDA, ARS, National Peanut Research Laboratory, Dawson, GA 39842
| | - R.B. Sorensen
- Research Biochemist, Research Agricultural Engineer, Research Agronomist, and Supervisory Research Food Technologist, respectively, USDA, ARS, National Peanut Research Laboratory, Dawson, GA 39842
| | - C.Y. Chen
- Professor, Crop, Soil, and Environmental Sciences, Auburn University, AL 36849
| | - M.C. Lamb
- Research Biochemist, Research Agricultural Engineer, Research Agronomist, and Supervisory Research Food Technologist, respectively, USDA, ARS, National Peanut Research Laboratory, Dawson, GA 39842
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Feuvret L, Dang P, Cao K, Chevalier A, Cuenca X, Laigle-Donadey F, Clausse E, Culot F, Mazeron JJ. Efficacité et toxicité tardive de l’irradiation craniospinale des médulloblastomes de l’adulte par tomothérapie hélicoïdale : expérience monocentrique. Cancer Radiother 2015. [DOI: 10.1016/j.canrad.2015.07.095] [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: 11/17/2022]
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Gusev P, Andrews K, Palachuvattil J, Dang P, Savarala S, Han F, Pehrsson P, Douglass L, Dwyer J, Betz J, Saldanha L, Costello R, Bailey R. Analytical Content of Multivitamin/Mineral (MVM) Products Manufactured for Different Consumer Categories. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.586.6] [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: 11/11/2022]
Affiliation(s)
- P Gusev
- Nutrient Data LaboratoryBHNRC, ARS, USDABeltsvilleMDUnited States
| | - K Andrews
- Nutrient Data LaboratoryBHNRC, ARS, USDABeltsvilleMDUnited States
| | - J Palachuvattil
- Nutrient Data LaboratoryBHNRC, ARS, USDABeltsvilleMDUnited States
| | - P Dang
- Nutrient Data LaboratoryBHNRC, ARS, USDABeltsvilleMDUnited States
| | - S Savarala
- Nutrient Data LaboratoryBHNRC, ARS, USDABeltsvilleMDUnited States
| | - F Han
- Nutrient Data LaboratoryBHNRC, ARS, USDABeltsvilleMDUnited States
| | - P Pehrsson
- Nutrient Data LaboratoryBHNRC, ARS, USDABeltsvilleMDUnited States
| | - L Douglass
- Statistician ConsultantLongmontCOUnited States
| | - J Dwyer
- Office of Dietary SupplementsNIH, DHHSBethesdaMDUnited States
| | - J Betz
- Office of Dietary SupplementsNIH, DHHSBethesdaMDUnited States
| | - L Saldanha
- Office of Dietary SupplementsNIH, DHHSBethesdaMDUnited States
| | - R Costello
- Office of Dietary SupplementsNIH, DHHSBethesdaMDUnited States
| | - R Bailey
- Office of Dietary SupplementsNIH, DHHSBethesdaMDUnited States
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Saldanha L, Dwyer J, Andrews K, Bailen R, Bailey R, Betz J, Costello R, Dang P, Gahche J, Gusev P, Han F, Palachuvattil J, Savarala S, Pehrsson P. Comparison of Labeled Composition and Strength of Prenatal Multivitamin/Mineral (MVM) Prescription (P) and Non‐Prescription (N‐P) Supplements. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.250.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Andrews K, Palachuvattil J, Gusev P, Dang P, Savarala S, Han F, Pehrsson P, Douglass L, Dwyer J, Betz J, Saldanha L, Costello R, Bailey R, Gahche J. Release 3 of the U.S. Dietary Supplement Ingredient Database (DSID): Omega‐3 (n‐3) Fatty Acid and Non‐prescription Prenatal Multivitamin/mineral (MVM) Supplements. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.250.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- K Andrews
- Nutrient Data LaboratoryUSDABeltsvilleMDUnited States
| | | | - P Gusev
- Nutrient Data LaboratoryUSDABeltsvilleMDUnited States
| | - P Dang
- Nutrient Data LaboratoryUSDABeltsvilleMDUnited States
| | - S Savarala
- Nutrient Data LaboratoryUSDABeltsvilleMDUnited States
| | - F Han
- Nutrient Data LaboratoryUSDABeltsvilleMDUnited States
| | - P Pehrsson
- Nutrient Data LaboratoryUSDABeltsvilleMDUnited States
| | - L Douglass
- Office of Dietary Supplements NIHBethesdaMDUnited States
| | - J Dwyer
- Statistician ConsultantLongmontCOUnited States
| | - J Betz
- Statistician ConsultantLongmontCOUnited States
| | - L Saldanha
- Statistician ConsultantLongmontCOUnited States
| | - R Costello
- Statistician ConsultantLongmontCOUnited States
| | - R Bailey
- Statistician ConsultantLongmontCOUnited States
| | - J Gahche
- National Center for Health Statistics CDCHyattsvilleMDUnited States
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Schwarzkopf R, Dang P, Luu M, Mozaffar T, Gupta R. Topical tranexamic Acid does not affect electrophysiologic or neurovascular sciatic nerve markers in an animal model. Clin Orthop Relat Res 2015; 473:1074-82. [PMID: 25560955 PMCID: PMC4317440 DOI: 10.1007/s11999-014-4098-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 12/03/2014] [Indexed: 01/31/2023]
Abstract
BACKGROUND Tranexamic acid is a safe and effective antifibrinolytic agent used systemically and topically to reduce blood loss and transfusion rate in patients having TKA or THA. As the hip does not have a defined capsule, topical application of tranexamic acid may entirely envelop the sciatic nerve during THA. Accidental application of tranexamic acid onto the spinal cord in spinal anesthesia has been shown to produce seizures; therefore, we sought to investigate if topical application of tranexamic acid on the sciatic nerve has a deleterious effect. QUESTIONS/PURPOSES We explored whether there were any short- or long-term alterations in (1) electrophysiologic measures, (2) macrophage recruitment, or (3) blood-nerve barrier permeability. Our hypothesis was that local application of tranexamic acid would have a transient effect or no effect on histologic features and function of the sciatic nerve. METHODS We used a rat protocol to model sciatic nerve exposure in THA to determine the effects of tranexamic acid on neural histologic features and function. We evaluated 35 rats by the dorsal gluteal splitting approach to expose the sciatic nerve for topical use of control and tranexamic acid. We evaluated EMG changes (distal latency, amplitude, nerve conduction velocity), histologic signs of nerve injury via macrophage recruitment, and changes in blood-nerve barrier permeability at early (4 days) and late (1 month) times after surgery, after application of subtherapeutic (1 mg/kg body weight [1.6 mg]), therapeutic (10 mg/kg [16 mg]), and supratherapeutic (100 mg/kg [160 mg]) concentrations of tranexamic acid. Differences in blood-nerve barrier permeability, macrophage recruitment, and EMG between normal and tranexamic acid-treated nerves were calculated using one-way ANOVA, with Newman-Keuls post hoc analyses, at each time. A post hoc power calculation showed that with the numbers available, we had 16% power to detect a 50% difference in EMG changes between the control, 1 mg/kg group, 10 mg/kg group, and 100 mg/kg group. RESULTS At the early and late times, with the numbers available, there were no differences in EMG except for distal latency at 4 days, macrophage recruitment, or changes in blood-nerve barrier between control rats and those with tranexamic acid-treated nerves. The distal latency in the 1 mg tranexamic acid-treated animals at 4 days was 1.06 ± 0.15 ms (p = 0.0036 versus all other groups, 95% CI, 0.89-1.25), whereas the distal latencies in the control, the 10 mg/kg, and 100 mg/kg tranexamic acid-treated animals were 0.83 ± 0.11, 0.89 ± 0.05, and 0.87 ± 0.13, respectively. Distal latencies were not increased in any of the groups at 1 month with the numbers available (0.81 ± 0.10, 0.89 ± 0.03, 0.81 ± 0.06, and 0.83 ± 0.08 ms, respectively, for controls; 1 mg/kg, 10 mg/kg, and 100 mg/kg for the tranexamic acid-treated groups). CONCLUSION In our in vivo rat model study, tranexamic acid did not appear to have any clinically relevant effect on the sciatic nerve resulting from topical administration up to 1 month. However, because our statistical power was low, these data should be considered hypothesis-generating pilot data for larger, more-definitive studies. CLINICAL RELEVANCE Topical tranexamic acid is effective in decreasing patient blood loss during THA, and results from our in vivo rat model study suggest there may be no electrophysiologic and histologic effects on the sciatic nerve, with the numbers available, up to 1 month.
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Affiliation(s)
- Ran Schwarzkopf
- />Department of Orthopaedic Surgery, University of California, Irvine, 101 The City Drive S, Pavillion III, Orange, CA 92868 USA
| | - Phuc Dang
- />Department of Orthopaedic Surgery, University of California, Irvine, 101 The City Drive S, Pavillion III, Orange, CA 92868 USA
| | - Michele Luu
- />Peripheral Nerve Research Laboratory, University of California, Irvine, Irvine, CA USA
| | - Tahseen Mozaffar
- />Department of Neurology, University of California, Irvine, Orange, CA USA
| | - Ranjan Gupta
- />Department of Orthopaedic Surgery, University of California, Irvine, 101 The City Drive S, Pavillion III, Orange, CA 92868 USA
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Yeung DT, Moulton DJ, Heatley SL, Nievergall E, Dang P, Braley J, Branford S, Moore S, Mullighan CG, Hughes TP, White DL. Relapse of BCR-ABL1-like ALL mediated by the ABL1 kinase domain mutation T315I following initial response to dasatinib treatment. Leukemia 2014; 29:230-2. [PMID: 25179732 DOI: 10.1038/leu.2014.256] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- D T Yeung
- 1] Discipline of Medicine, School of Medicine, University of Adelaide, Adelaide, South Australia, Australia [2] Department of Genetics & Pathology & Centre for Cancer Biology, Adelaide, South Australia, Australia [3] Department of Haematology, SA Pathology, Adelaide, South Australia, Australia
| | - D J Moulton
- 1] Discipline of Medicine, School of Medicine, University of Adelaide, Adelaide, South Australia, Australia [2] Department of Haematology, SA Pathology, Adelaide, South Australia, Australia [3] South Australia Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - S L Heatley
- South Australia Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - E Nievergall
- South Australia Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - P Dang
- South Australia Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - J Braley
- Department of Genetics & Pathology & Centre for Cancer Biology, Adelaide, South Australia, Australia
| | - S Branford
- Department of Genetics & Pathology & Centre for Cancer Biology, Adelaide, South Australia, Australia
| | - S Moore
- Department of Genetics & Pathology & Centre for Cancer Biology, Adelaide, South Australia, Australia
| | - C G Mullighan
- 1] Discipline of Medicine, School of Medicine, University of Adelaide, Adelaide, South Australia, Australia [2] South Australia Health and Medical Research Institute, Adelaide, South Australia, Australia [3] St Jude Children's Research Hospital, Memphis, TN, USA
| | - T P Hughes
- 1] Discipline of Medicine, School of Medicine, University of Adelaide, Adelaide, South Australia, Australia [2] Department of Haematology, SA Pathology, Adelaide, South Australia, Australia [3] South Australia Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - D L White
- 1] Discipline of Medicine, School of Medicine, University of Adelaide, Adelaide, South Australia, Australia [2] South Australia Health and Medical Research Institute, Adelaide, South Australia, Australia [3] Discipline of Paediatrics, School of Medicine, University of Adelaide, Adelaide, South Australia, Australia
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Gusev P, Andrews K, Palachuvattil J, Dang P, Roseland J, Holden J, Savarala S, Pehrsson P, Dwyer J, Betz J, Saldanha L, Bailey R, Costello R, Gahche J, Hardy C, Emenaker N, Douglass L. Over‐the‐counter prenatal multivitamin/mineral products: chemical analysis for the Dietary Supplement Ingredient Database (809.3). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.809.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- P Gusev
- BHNRC‐NDL USDA‐ARSBeltsvilleMDUnited States
| | - K Andrews
- BHNRC‐NDL USDA‐ARSBeltsvilleMDUnited States
| | | | - P Dang
- BHNRC‐NDL USDA‐ARSBeltsvilleMDUnited States
| | - J Roseland
- BHNRC‐NDL USDA‐ARSBeltsvilleMDUnited States
| | - J Holden
- BHNRC‐NDL USDA‐ARSBeltsvilleMDUnited States
| | - S Savarala
- BHNRC‐NDL USDA‐ARSBeltsvilleMDUnited States
| | - P Pehrsson
- BHNRC‐NDL USDA‐ARSBeltsvilleMDUnited States
| | - J Dwyer
- ODS NIHBETHESDAMDUnited States
| | - J Betz
- ODS NIHBETHESDAMDUnited States
| | | | | | | | - J Gahche
- NHANES CDC‐NCHSHyattsvilleMDUnited States
| | - C Hardy
- CFSAN FDACollege ParkMDUnited States
| | | | - L Douglass
- Consulting StatisticianLongmontCOUnited States
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Andrews K, Palachuvattil J, Dang P, Gusev P, Savarala S, Pehrsson P, Harnly J, Dwyer J, Betz J, Saldanha L, Bailey R, Costello R, Gahche J, Hardy C, Emenaker N. Botanical initiative for the Dietary Supplement Ingredient Database: green tea pilot study (245.7). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.245.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- K Andrews
- BHNRC‐NDL USDA‐ARSBeltsvilleMDUnited States
| | | | - P Dang
- BHNRC‐NDL USDA‐ARSBeltsvilleMDUnited States
| | - P Gusev
- BHNRC‐NDL USDA‐ARSBeltsvilleMDUnited States
| | - S Savarala
- BHNRC‐NDL USDA‐ARSBeltsvilleMDUnited States
| | - P Pehrsson
- BHNRC‐NDL USDA‐ARSBeltsvilleMDUnited States
| | - J Harnly
- BHNRC‐FCMDL USDA‐ARSBeltsvilleMDUnited States
| | - J Dwyer
- ODS NIHBETHESDAMDUnited States
| | - J Betz
- ODS NIHBETHESDAMDUnited States
| | | | | | | | - J Gahche
- NHANES CDC‐NCHSHyattsvilleMDUnited States
| | - C Hardy
- CFSAN FDA CollegeParkMDUnited States
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Wang J, Dang P, Pandalai PK, Raut CP, Maduekwe UN, Yoon SS. Comparison of the 2010 AJCC TNM staging system with a modified lymph node ratio staging system in 7,233 gastric cancer patients. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.4023] [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: 11/20/2022] Open
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17
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Luo M, Dang P, Bausher MG, Holbrook CC, Lee RD, Lynch RE, Guo BZ. Identification of Transcripts Involved in Resistance Responses to Leaf Spot Disease Caused by Cercosporidium personatum in Peanut (Arachis hypogaea). Phytopathology 2005; 95:381-387. [PMID: 18943040 DOI: 10.1094/phyto-95-0381] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
ABSTRACT Late leaf spot disease caused by Cercosporidium personatum is one of the most destructive foliar diseases of peanut (Arachis hypogaea) worldwide. The objective of this research was to identify resistance genes in response to leaf spot disease using microarray and real-time polymerase chain reaction (PCR). To identify transcripts involved in disease resistance, we studied the gene expression profiles in two peanut genotypes, resistant or susceptible to leaf spot disease, using cDNA microarray containing 384 unigenes selected from two expressed sequenced tag (EST) cDNA libraries challenged by abiotic and biotic stresses. A total of 112 spots representing 56 genes in several functional categories were detected as up-regulated genes (log(2) ratio > 1). Seventeen of the top 20 genes, each matching gene with known function in GenBank, were selected for validation of their expression levels using real-time PCR. The two peanut genotypes were also used to study the functional analysis of these genes and the possible link of these genes to the disease resistance trait. Microarray technology and real-time PCR were used for comparison of gene expression. The selected genes identified by microarray analysis were validated by real-time PCR. These genes were more greatly expressed in the resistant genotype as a result of response to the challenge of C. personatum than in the susceptible genotype. Further investigations are needed to characterize each of these genes in disease resistance. Gene probes could then be developed for application in breeding programs for marker-assisted selection.
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Keller SM, Ryan LM, Coia LR, Dang P, Vaught DJ, Diggs C, Weiner LM, Benson AB. High dose chemoradiotherapy followed by esophagectomy for adenocarcinoma of the esophagus and gastroesophageal junction: results of a phase II study of the Eastern Cooperative Oncology Group. Cancer 1998; 83:1908-16. [PMID: 9806648 DOI: 10.1002/(sici)1097-0142(19981101)83:9<1908::aid-cncr5>3.0.co;2-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.2] [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] [Indexed: 02/01/2023]
Abstract
BACKGROUND To assess the toxicity, local response, and survival associated with multimodality therapy in a cooperative group setting, patients with biopsy-proven clinical Stage I or II adenocarcinoma of the esophagus (staged according to 1983 American Joint Committee on Cancer criteria) or gastroesophageal junction were treated with concomitant radiation and chemotherapy followed by esophagectomy. METHODS Radiotherapy was administered in daily 2-gray (Gy) fractions 5 days a week until a total of 60 Gy was reached. 5-fluorouracil (5-FU) was infused continuously at a dose of 1000 mg/m2/day for 96 hours on Days 2-5 and 28-31. On Day 2, a 10 mg/m2 bolus of mitomycin was injected intravenously. Esophagectomy was performed 4-8 weeks following completion of the radiotherapy. RESULTS During the 18-month study period (August 1991 through January 1993), 46 eligible patients were accrued from 21 institutions. Eight patients were Stage I and 38 Stage II. Eighty-seven percent of patients (40 of 46) received 6000 centigray (cGy), and all received >5000 cGy. Seventy-eight percent of patients (36 of 46) received >90% of the planned 5-FU dose. Follow-up ranged from 11 to 36 months (median, 22 months). There were eight treatment-related deaths; two were preoperative (from adult respiratory distress syndrome) and six were postoperative. Complete or partial response prior to esophagectomy was observed in 63% of cases, stable disease in 15%, and progression in 20%. Thirty-three patients underwent esophagectomy (transhiatal, n=14; Ivor Lewis, n=16; other, n=3). No tumor was found in the specimens resected from 8 of these 33 patients; this represented a pathologic complete response rate of 17% overall and 24% for those who underwent esophagectomy. Overall median survival was 16.6 months, 1-year survival 57%, and 2-year survival 27%. Survival was significantly worse for patients with circumferential cancers (median, 18.1 months vs. 8.3 months; P <0.05). CONCLUSION High dose radiation therapy with concurrent 5-FU and mitomycin may be administered to patients with esophageal adenocarcinoma with acceptable morbidity. However, in a cooperative group setting, esophagogastrectomy following intensive chemoradiotherapy is associated with excessive morbidity and mortality. Circumferential tumor growth is a significant adverse prognostic factor.
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Affiliation(s)
- S M Keller
- Department of Surgery, The Beth Israel Medical Center, New York, New York 10003, USA
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Hu T, Fan B, Liang J, Zhao S, Dang P, Gao F, Dong M. Observations on the treatment of natural haemosporidia infections by total alkaloid of Peganum harmala L. in cattle. Trop Anim Health Prod 1997; 29:72S-76S. [PMID: 9512749 DOI: 10.1007/bf02632936] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [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: 02/06/2023]
Abstract
Eighty two cattle naturally infected with haemosporidians were treated with total alkaloid hydrochloride of Peganum harmale L. (0.5 mg/kg/day). Fifty eight cases with Theileria sergenti showed a cure rate of 86%; thirteen cases with Theileria annulata showed a cure rate of 85%; eight cattle infected with Babesia bigemina showed a cure rate of 88% and three cases of Anaplasma marginale were completely cured. The results suggested that the curative effect of total alkaloid of P. harmale was better than that of diminazene aceturate and produced minimal side effects. The alkaloid could also be administered to pregnant animals. It was concluded that the total alkaloid of P. harmale showed a marked effect as a treatment for haemosporidican infections in cattle.
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Affiliation(s)
- T Hu
- Institute of Traditional Chinese Veterinary Medicine, Chinese Academy of Agricultural Sciences, Lanzhou, People's Republic of China
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Fan B, Liang J, Men J, Gao F, Li G, Zhao S, Hu T, Dang P, Zhang L. Effect of total alkaloid of Peganum harmala L. in the treatment of experimental haemosporidian infections in cattle. Trop Anim Health Prod 1997; 29:77S-83S. [PMID: 9512750 DOI: 10.1007/bf02632937] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [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: 02/06/2023]
Abstract
Cattle experimentally infected with Babesia bigemina or Theileria sergenti or mixed infestations of the two parasites were treated with Total Alkaloid of Peganum harmala L. The results showed that treatment was effective against B. bigemina infection, had a marked effect on the course of infection with T. sergenti and some effect on the course of the mixed infection.
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Affiliation(s)
- B Fan
- Institute of Traditional Chinese Veterinary Medicine, Chinese Academy of Agricultural Sciences, Lanzhou, People's Republic of China
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Chatel D, Delamare L, Dang P, Lebouvier D, Trocherie F. A biomechanical double sac (pericardium-Pebax) for specially shaped artificial ventricles: a computerized study to evaluate its mechanical and volumetric properties. Artif Organs 1997; 21:1098-104. [PMID: 9335368 DOI: 10.1111/j.1525-1594.1997.tb00449.x] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
For original ovoid shaped artificial ventricles, a biomechanical double sac consisting of a biological sac (porcine pericardium) as the blood contact interface and a synthetic sac (Pebax 3533) as the mechanical support to assume systolic-diastolic dynamic constraints was conceived. The volumetric and mechanical properties were assessed with a three-dimensional modeling of Pebax sacs and computerized simulations of their systolic distortions for both right and left ventricular configurations. The stresses and strains of these sacs were represented as quantitative mappings for a maximum end-systolic state and were below the respective threshold values above which the Pebax material is jeopardized for permanent structure impairment. After fatigue tests applied on Pebax strips under the alleged working conditions of Pebax sacs, the material structure was unchanged and maintained its intrinsic mechanical properties. The theoretical maximum stroke volumes were 74.4 cm3 and 62.4 cm3 for the left and right ventricular configurations, respectively. With these mechanical and volumetric features, the biomechanical double sac concept was considered valid and could be provided for a consequent specific total artificial heart.
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Affiliation(s)
- D Chatel
- Département de Chirurgie Cardiaque, Hopital Bichat, Paris, France
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Whitney KG, Thornhill JW, Giuliani JL, Davis J, Miles LA, Nolting EE, Kenyon VL, Speicer WA, Draper JA, Parsons CR, Dang P, Spielman RB, Nash TJ, McGurn JS, Ruggles LE, Deeney C, Prasad RR, Warren L. Optimization of K-shell emission in aluminum z-pinch implosions: Theory versus experiment. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 1994; 50:2166-2174. [PMID: 9962222 DOI: 10.1103/physreve.50.2166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Abstract
The relationship between molecular connectivity indices and anticonvulsant activity of a series of hydantoin/thiohydantoin analogs has been investigated. The values of molecular connectivity index and valence molecular connectivity index of 82 compounds were computed and active ranges were identified. The activity assigned to each analog using these topological descriptors was subsequently compared with the reported activity against maximal electroshock convulsions. Predictions with high degree of accuracy were observed using these indices.
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Affiliation(s)
- P Dang
- College of Pharmacy, University of Delhi, New Delhi, India
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Dang P. [An anti-cancer vaccine]. Presse Med 1990; 19:1921. [PMID: 2147746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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29
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Dang P. [What are true carcinogens?]. Presse Med 1990; 19:1922. [PMID: 2147750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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30
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Drüeke T, Hennessen U, Nabarra B, Ben Nasr L, Lucas PA, Dang P, Thomasset M, Lacour B, Coudrier E, McCarron DA. Ultrastructural and functional abnormalities of intestinal and renal epithelium in the SHR. Kidney Int 1990; 37:1438-48. [PMID: 2362401 DOI: 10.1038/ki.1990.134] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [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: 12/31/2022]
Abstract
Intestinal calcium transport, renal tubular calcium reabsorption, and plasma 1.25 (OH)2 vitamin D3 (calcitriol) levels have all been reported to be diminished in the spontaneously hypertensive rat (SHR) compared with its genetic control the Wistar Kyoto rat (WKY). In the present study, absorptive duodenal and renal tubular epithelia of 12- to 14-week-old male SHR and WKY were examined by electron microscopy to determine whether such disturbances could be related to structural abnormalities. Patchy loss of microvilli in both duodenal and proximal tubular epithelia was observed in the SHR, whereas brush border membrane was entirely normal in the WKY. Irregular spaces were observed between the basal aspects of SHR intestinal epithelial cells and their basement membrane. In addition, the average height of duodenal and renal microvilli was reduced in the SHR. Two specific markers of the brush border membrane, alkaline phosphatase and villin, as well as the cytoplasmic vitamin-D dependent calcium-binding proteins, CaBP9K and CaBP28K were determined. Duodenal alkaline phosphatase activity was reduced in the SHR, compared with the WKY: 0.145 +/- 0.002 vs. 0.186 +/- 0.002 IE/min.microns 3 x 10(3) brush border, mean +/- SEM, N = 10 pairs, P less than 0.001. However, duodenal villin expression was not different from that of the WKY. Duodenal CaBP9K and renal CaBP28K content was diminished in the SHR: 21.0 +/- 0.80 vs. 29.9 +/- 2.19 micrograms/mg protein, N = 6 pairs, P less than 0.01 for duodenum, and 4.47 +/- 0.39 vs. 7.67 +/- 0.54 micrograms/mg protein, N = 6 pairs, P less than 0.001 for kidney. These data showing structural and functional abnormalities of intestinal and kidney cells in the SHR appear to reflect a disorder of transporting epithelia which may be either intrinsic or related to reduced circulating calcitriol.
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Affiliation(s)
- T Drüeke
- INSERM Unité 90, Unité 25, Hôpital Necker, Paris, France
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Lucas PA, Roullet CM, Duchambon P, Lacour B, Dang P, McCarron DA, Drüeke T. Decreased duodenal enterocyte calcium flux rates in the spontaneously hypertensive rat. Am J Hypertens 1989; 2:86-92. [PMID: 2537091 DOI: 10.1093/ajh/2.2.86] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
We have previously reported serum 1,25(OH)2 vitamin D3 (calcitriol) and active transduodenal calcium absorption measured in the Ussing chamber to be reduced in 12- to 14-week-old male Okamoto-Aoki spontaneously hypertensive rats (SHR). In the present study, we compared rates of calcium influx and efflux in isolated duodenal enterocytes in SHR and corresponding controls, Wistar-Kyoto rats (WKY). The early (0 to 1 minute) and the late (1 to 15 minute) phase of calcium influx rates at 1.0 mmol Ca2+ in the incubation medium were lower in the SHR than in the WKY (mean +/- SEM): 1.93 +/- 0.22 v 2.85 +/- 0.41 nmol/mg protein/min, n = 8 and n = 7 experiments, respectively, P less than .05; and 0.334 +/- 0.025 v 0.488 +/- 0.059 nmol/mg protein/min, n = 14 pairs, P less than .01. The calcium efflux rate constant of the SHR was reduced: 34.3 +/- 1.4 v 51.9 +/- 1.4% per hour, n = 11 pairs, P less than .01. However, in the absence of sodium or the presence of ouabain (4.0 mmol) in the incubation medium, a decrease in this constant was observed in the WKY but not in the SHR. These data, at the cellular level, support our previous observation in intact tissue of reduced active transduodenal calcium transport in the 12- to 14-week-old SHR. Whether the primary defect in calcium transport involves the luminal or the basolateral membrane of the enterocyte, or whether both disturbances are due to a common primary perturbation cannot be deduced from the present experiments.
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Affiliation(s)
- P A Lucas
- INSERM Unité 90, Hôpital Necker, Paris, France
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Dang P, Gutmann L, Quentin C, Williamson R, Collatz E. Some properties of Serratia marcescens, Salmonella paratyphi A, and Enterobacter cloacae with non-enzyme-dependent multiple resistance to beta-lactam antibiotics, aminoglycosides, and quinolones. Rev Infect Dis 1988; 10:899-904. [PMID: 3055181 DOI: 10.1093/clinids/10.4.899] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Non-enzyme-dependent multiple-drug resistance occurs preferentially in some genera of Enterobacteriaceae, such as Serratia, Klebsiella, Enterobacter, and Salmonella. Susceptibility to beta-lactam antibiotics, aminoglycosides, quinolones, trimethoprim, and chloramphenicol may be affected in various combinations in different mutants. Proteins from the outer and inner membranes and lipopolysaccharides may be altered concomitantly. Although porin alterations have been observed in all resistant mutants studied, these modifications alone do not seem sufficient to explain the various cross-resistance phenotypes.
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Affiliation(s)
- P Dang
- Laboratoire de Microbiologie Médicale, Université de Paris VI, France
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Shepherd FA, Evans WK, Kutas G, Yau JC, Dang P, Scott JG, Farquharson HA, Francombe WH, Bailey D, Baker MA. Chemotherapy following surgery for stages IE and IIE non-Hodgkin's lymphoma of the gastrointestinal tract. J Clin Oncol 1988; 6:253-60. [PMID: 3339394 DOI: 10.1200/jco.1988.6.2.253] [Citation(s) in RCA: 59] [Impact Index Per Article: 1.6] [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: 01/05/2023] Open
Abstract
Twenty-six patients were treated with chemotherapy following surgery for gastrointestinal non-Hodgkin's lymphoma (GI-NHL). The median age was 50 years (range, 20 to 76). The primary site included stomach (16 patients), small bowel (seven), large bowel (two), and mesenteric nodes (one). Following surgery, nine patients had macroscopic and four patients had microscopic residual disease, and 13 were felt to have had complete surgical resection. Thirteen patients were stage I and 13 were stage II. Sixteen patients were treated with COPP (cyclophosphamide, vincristine, procarbazine, prednisone), nine with CHOP (cyclophosphamide, doxorubicin, vincristine, prednisone), and one with CVP (cyclophosphamide, vincristine, prednisone). At a median follow-up of 50 months (8+ to 178+ months) ten of 12 stage I patients and nine of 14 stage II patients remain alive. Of the nine patients with macroscopic residual disease, four died of disease 6.5 to 11.0 months after diagnosis, and five are alive 8+ to 178+ months from diagnosis. Fourteen of the remaining 17 patients who had complete surgical resection are alive without disease. Death in the other three patients was due to multiple abdominal abscesses at 12 months, adenocarcinoma of the colon at 57 months, and dementia and progressive neurologic dysfunction at 65 months. No patient who had complete resection has relapsed or developed systemic disease after chemotherapy. These results suggest that complete surgical resection is an important prognostic factor and that chemotherapy without irradiation in completely resected localized GI-NHL can prevent local and systemic relapse resulting in long-term disease-free survival.
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Affiliation(s)
- F A Shepherd
- Department of Medicine, Toronto General Hospital, Ontario, Canada
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Abstract
Thirty-one patients with small-cell lung cancer (SCLC) were treated with VP-16 and cisplatin as first-line therapy. In the majority of cases an Adriamycin (Adria Laboratories, Columbus, Ohio) containing regimen was contraindicated because of severe cardiac or hepatic disease. Eight patients who presented with cerebral metastases were also included in the series. Eleven patients had limited disease (LD), and 20 had extensive disease (ED). Of the 28 evaluable patients, 12 (43%) achieved a complete response (CR) and 12 (43%) had a partial response (PR). Four patients (14%) either had no response or progressed on treatment. The median duration of response for patients with LD was 39 weeks and for those with ED, 26 weeks. The median survival time (MST) for the whole group of responding (CR and PR) LD patients was 70 weeks (range, 28 to 181 + weeks), and for responding ED patients, it was 43 weeks (range, 17 to 68 weeks). Gastrointestinal toxicity was mild, but leukopenia and thrombocytopenia were common. There were four febrile episodes during periods of drug-induced neutropenia and this led to one treatment-related death. Nephrotoxicity occurred in 15 patients and required discontinuation of cisplatin in two. These results compare favorably with reports of standard induction chemotherapy regimens and provide further evidence of the activity of the VP-16 and cisplatin regimen in patients with SCLC.
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