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1. Longitudinal Changes in Health-Related Quality of Life in Primary Glomerular Disease: Results From the CureGN Study

Author

Shannon L. Murphy, John D. Mahan, Jonathan P. Troost, Tarak Srivastava, Amy J. Kogon, Yi Cai, T. Keefe Davis, Hilda Fernandez, Alessia Fornoni, Rasheed A. Gbadegesin, Emily Herreshoff, Pietro A. Canetta, Patrick H. Nachman, Bryce B. Reeve, David T. Selewski, Christine B. Sethna, Chia-shi Wang, Sharon M. Bartosh, Debbie S. Gipson, Katherine R. Tuttle, Ali Gharavi, Wooin Ahn, Gerald B. Appel, Rupali S. Avasare, Revekka Babayev, Ibrahim Batal, Andrew S. Bomback, Eric Brown, Eric S. Campenot, Pietro Canetta, Brenda Chan, Vivette D. D’Agati, Bartosz Foroncewicz, Gian Marco Ghiggeri, William H. Hines, Namrata G. Jain, Krzysztof Kiryluk, Fangming Lin, Francesca Lugani, Maddalena Marasa, Glen Markowitz, Sumit Mohan, Krzysztof Mucha, Thomas L. Nickolas, Jai Radhakrishnan, Maya K. Rao, Renu Regunathan-Shenk, Simone Sanna-Cherchi, Dominick Santoriello, Michael B. Stokes, Natalie Yu, Anthony M. Valeri, Ronald Zviti, Larry A. Greenbaum, William E. Smoyer, Amira Al-Uzri, Isa Ashoor, Diego Aviles, Rossana Baracco, John Barcia, Sharon Bartosh, Craig Belsha, Michael C. Braun, Aftab Chishti, Donna Claes, Carl Cramer, Keefe Davis, Elif Erkan, Daniel Feig, Michael Freundlich, Melisha Hanna, Guillermo Hidalgo, Amrish Jain, Myda Khalid, Mahmoud Kallash, Jerome C. Lane, John Mahan, Nisha Mathews, Carla Nester, Cynthia Pan, Hiren Patel, Adelaide Revell, Rajasree Sreedharan, Julia Steinke, Scott E. Wenderfer, Craig S. Wong, Ronald Falk, William Cook, Vimal Derebail, Agnes Fogo, Adil Gasim, Todd Gehr, Raymond Harris, Jason Kidd, Louis-Philippe Laurin, Will Pendergraft, Vincent Pichette, Thomas Brian Powell, Matthew B. Renfrow, Virginie Royal, Lawrence B. Holzman, Sharon Adler, Charles Alpers, Raed Bou Matar, Elizabeth Brown, Michael Choi, Katherine M. Dell, Ram Dukkipati, Fernando C. Fervenza, Crystal Gadegbeku, Patrick Gipson, Leah Hasely, Sangeeta Hingorani, Michelle A. Hladunewich, Jonathan Hogan, J. Ashley Jefferson, Kenar Jhaveri, Duncan B. Johnstone, Frederick Kaskel, Amy Kogan, Jeffrey Kopp, Kevin V. Lemley, Laura Malaga- Dieguez, Kevin Meyers, Alicia Neu, Michelle Marie O'Shaughnessy, John F. O’Toole, Rulan Parekh, Heather Reich, Kimberly Reidy, Helbert Rondon, Kamalanathan K. Sambandam, John R. Sedor, Jeffrey Schelling, John C. Sperati, Agnes Swiatecka-Urban, Howard Trachtman, Joseph Weisstuch, Olga Zhdanova, Brenda Gillespie, Matthias Kretzler, Bruce M. Robinson, Laura Mariani, Matthew Wladkowski, and Lisa M. Guay-Woodford

Subjects
medicine.medical_specialty, 030232 urology & nephrology, Disease, 030204 cardiovascular system & hematology, lcsh:RC870-923, Nephropathy, 03 medical and health sciences, 0302 clinical medicine, Focal segmental glomerulosclerosis, Quality of life, Membranous nephropathy, Clinical Research, Internal medicine, medicine, Minimal change disease, business.industry, lcsh:Diseases of the genitourinary system. Urology, medicine.disease, humanities, health-related quality of life, patient-reported outcomes, Nephrology, primary glomerular disease, Cohort, Anxiety, medicine.symptom, business, edema
Abstract

Introduction: Prior cross-sectional studies suggest that health-related quality of life (HRQOL) worsens with more severe glomerular disease. This longitudinal analysis was conducted to assess changes in HRQOL with changing disease status. Methods: Cure Glomerulonephropathy (CureGN) is a cohort of patients with minimal change disease, focal segmental glomerulosclerosis, membranous nephropathy, IgA vasculitis, or IgA nephropathy. HRQOL was assessed at enrollment and follow-up visits 1 to 3 times annually for up to 5 years with the Patient-Reported Outcomes Measurement Information System (PROMIS). Global health, anxiety, and fatigue domains were measured in all; mobility was measured in children; and sleep-related impairment was measured in adults. Linear mixed effects models were used to evaluate HRQOL responsiveness to changes in disease status. Results: A total of 469 children and 1146 adults with PROMIS scores were included in the analysis. HRQOL improved over time in nearly all domains, though group-level changes were modest. Edema was most consistently associated with worse HRQOL across domains among children and adults. A greater number of symptoms also predicted worse HRQOL in all domains. Sex, age, obesity, and serum albumin were associated with some HRQOL domains. The estimated glomerular filtration rate (eGFR) was only associated with fatigue and adult physical health; proteinuria was not associated with any HRQOL domain in adjusted models. Conclusion: HRQOL measures were responsive to changes in disease activity, as indicated by edema. HRQOL over time was not predicted by laboratory-based markers of disease. Patient-reported edema and number of symptoms were the strongest predictors of HRQOL, highlighting the importance of the patient experience in glomerular disease. HRQOL outcomes inform understanding of the patient experience for children and adults with glomerular diseases.

Published
2020
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2. Protocolized Urine Sampling is Associated with Reduced Catheter-associated Urinary Tract Infections: A Pre- and Postintervention Study

Author

Jennifer A. Frontera, Ting Zhou, Shadi Yaghi, Joseph Weisstuch, Stephanie Sterling, Archana Saxena, Michael Phillips, Erwin Wang, D. Ethan Kahn, Martha J. Radford, Karen Delorenzo, and Aaron Lord

Subjects
Microbiology (medical), medicine.medical_specialty, Urinary system, 030232 urology & nephrology, Urine, Urinary Catheters, 03 medical and health sciences, 0302 clinical medicine, Internal medicine, medicine, Humans, 030212 general & internal medicine, Device Removal, business.industry, Pyuria, Catheter, Infectious Diseases, Catheter-Related Infections, Urinary Tract Infections, Propensity score matching, Urine bacteria, Cohort, medicine.symptom, Urinary Catheterization, business, Urine sample
Abstract

Background Standard urine sampling and testing techniques do not mitigate against detection of colonization, resulting in false positive catheter-associated urinary tract infections (CAUTI). We aimed to evaluate whether a novel protocol for urine sampling and testing reduces rates of CAUTI. Methods A preintervention and postintervention study with a contemporaneous control group was conducted at 2 campuses (test and control) of the same academic medical center. The test campus implemented a protocol requiring urinary catheter removal prior to urine sampling from a new catheter or sterile straight catheterization, along with urine bacteria and pyuria screening prior to culture. Primary outcomes were test campus CAUTI rates, compared between each 9-month pre- and postintervention epoch. Secondary outcomes included the percent reductions in CAUTI rates, compared between the test campus and a propensity score–matched cohort at the control campus. Results A total of 7991 patients from the test campus were included in the primary analysis, and 4264 were included in the propensity score–matched secondary analysis. In the primary analysis, the number of CAUTI cases per 1000 patients was reduced by 77% (6.6 to 1.5), the number of CAUTI cases per 1000 catheter days was reduced by 63% (5.9 to 2.2), and the number of urinary catheter days per patient was reduced by 37% (1.1 to 0.69; all P values ≤ .001). In the propensity score–matched analysis, the number of CAUTI cases per 1000 patients was reduced by 82% at the test campus, versus 57% at the control campus; the number of CAUTI cases per 1000 catheter days declined by 68% versus 57%, respectively; and the number of urinary catheter days per patient decreased by 44% versus 1%, respectively (all P values Conclusions Protocolized urine sampling and testing aimed at minimizing contamination by colonization was associated with significantly reduced CAUTI infection rates and urinary catheter days.

Published
2020
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3. Persistent Disease Activity in Patients With Long-Standing Glomerular Disease

Author

Elisa Delbarba, Maddalena Marasa, Pietro A. Canetta, Stacy E. Piva, Debanjana Chatterjee, Byum Hee Kil, Xueru Mu, Keisha L. Gibson, Michelle A. Hladunewich, Jonathan J. Hogan, Bruce A. Julian, Jason M. Kidd, Louis-Philippe Laurin, Patrick H. Nachman, Michelle N. Rheault, Dana V. Rizk, Neil S. Sanghani, Howard Trachtman, Scott E. Wenderfer, Ali G. Gharavi, Andrew S. Bomback, Wooin Ahn, Gerald B. Appel, Revekka Babayev, Ibrahim Batal, Eric Brown, Eric S. Campenot, Pietro Canetta, Brenda Chan, Vivette D. D’Agati, Hilda Fernandez, Bartosz Foroncewicz, Gian Marco Ghiggeri, William H. Hines, Namrata G. Jain, Krzysztof Kiryluk, Wai L. Lau, Fangming Lin, Francesca Lugani, Glen Markowitz, Sumit Mohan, Krzysztof Mucha, Thomas L. Nickolas, Stacy Piva, Jai Radhakrishnan, Maya K. Rao, Simone Sanna-Cherchi, Dominick Santoriello, Michael B. Stokes, Natalie Yu, Anthony M. Valeri, Ronald Zviti, Larry A. Greenbaum, William E. Smoyer, Amira Al-Uzri, Isa Ashoor, Diego Aviles, Rossana Baracco, John Barcia, Sharon Bartosh, Craig Belsha, Corinna Bowers, Michael C. Braun, Aftab Chishti, Donna Claes, Carl Cramer, Keefe Davis, Elif Erkan, Daniel Feig, Michael Freundlich, Rasheed Gbadegesin, Melisha Hanna, Guillermo Hidalgo, Tracy E. Hunley, Amrish Jain, Mahmoud Kallash, Myda Khalid, Jon B. Klein, Jerome C. Lane, John Mahan, Nisha Mathews, Carla Nester, Cynthia Pan, Larry Patterson, Hiren Patel, Adelaide Revell, Cynthia Silva, Rajasree Sreedharan, Tarak Srivastava, Julia Steinke, Katherine Twombley, Tetyana L. Vasylyeva, Donald J. Weaver, Craig S. Wong, Salem Almaani, Isabelle Ayoub, Milos Budisavljevic, Vimal Derebail, Huma Fatima, Ronald Falk, Agnes Fogo, Todd Gehr, Keisha Gibson, Dorey Glenn, Raymond Harris, Susan Hogan, Koyal Jain, J. Charles Jennette, Bruce Julian, Jason Kidd, H. Davis Massey, Amy Mottl, Patrick Nachman, Tibor Nadasdy, Jan Novak, Samir Parikh, Vincent Pichette, Caroline Poulton, Thomas Brian Powell, Matthew Renfrow, Dana Rizk, Brad Rovin, Virginie Royal, Manish Saha, Neil Sanghani, Sally Self, Sharon Adler, Charles Alpers, Raed Bou Matar, Elizabeth Brown, Daniel Cattran, Michael Choi, Katherine M. Dell, Ram Dukkipati, Fernando C. Fervenza, Alessia Fornoni, Crystal Gadegbeku, Patrick Gipson, Leah Hasely, Sangeeta Hingorani, Michelle Hladunewich, Jonathan Hogan, Lawrence B. Holzman, J. Ashley Jefferson, Kenar Jhaveri, Duncan B. Johnstone, Frederick Kaskel, Amy Kogan, Jeffrey Kopp, Richard Lafayette, Kevin V. Lemley, Laura Malaga-Dieguez, Kevin Meyers, Alicia Neu, Michelle Marie O’Shaughnessy, John F. O’Toole, Rulan Parekh, Heather Reich, Kimberly Reidy, Helbert Rondon, Kamalanathan K. Sambandam, John R. Sedor, David T. Selewski, Christine B. Sethna, Jeffrey Schelling, John C. Sperati, Agnes Swiatecka-Urban, Katherine R. Tuttle, Joseph Weisstuch, Suzanne Vento, Olga Zhdanova, Brenda Gillespie, Debbie S. Gipson, Peg Hill-Callahan, Margaret Helmuth, Emily Herreshoff, Matthias Kretzler, Chrysta Lienczewski, Sarah Mansfield, Laura Mariani, Cynthia C. Nast, Bruce M. Robinson, Jonathan Troost, Matthew Wladkowski, Jarcy Zee, Dawn Zinsser, and Lisa M. Guay-Woodford

Subjects
medicine.medical_specialty, glomerulonephropathy, glomerular disease, 030232 urology & nephrology, Disease, 030204 cardiovascular system & hematology, Nephropathy, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Focal segmental glomerulosclerosis, Membranous nephropathy, Clinical Research, Internal medicine, Biopsy, medicine, Minimal change disease, focal segmental glomerulosclerosis, Creatinine, medicine.diagnostic_test, business.industry, membranous nephropathy, IgA nephropathy, medicine.disease, minimal change disease, chemistry, Nephrology, Cohort, business
Abstract

Introduction Glomerular diseases are characterized by variable disease activity over many years. We aimed to analyze the relationship between clinical disease activity and duration of glomerular disease. Methods Disease activity in adults with chronic minimal change disease, focal segmental glomerulosclerosis, membranous nephropathy, and IgA nephropathy (IgAN; first diagnostic biopsy >5 years before enrollment; Of Longstanding Disease [OLD] cohort, n = 256) followed at Columbia University Medical Center (CUMC), was compared with disease activity of an internal and external cohort of patients with first diagnostic biopsy, Graphical abstract

Published
2020
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4. CureGN Study Rationale, Design, and Methods: Establishing a Large Prospective Observational Study of Glomerular Disease

Author

Laura H. Mariani, Andrew S. Bomback, Pietro A. Canetta, Michael F. Flessner, Margaret Helmuth, Michelle A. Hladunewich, Jonathan J. Hogan, Krzysztof Kiryluk, Patrick H. Nachman, Cynthia C. Nast, Michelle N. Rheault, Dana V. Rizk, Howard Trachtman, Scott E. Wenderfer, Corinna Bowers, Peg Hill-Callahan, Maddalena Marasa, Caroline J. Poulton, Adelaide Revell, Suzanne Vento, Laura Barisoni, Dan Cattran, Vivette D’Agati, J. Charles Jennette, Jon B. Klein, Louis-Philippe Laurin, Katherine Twombley, Ronald J. Falk, Ali G. Gharavi, Brenda W. Gillespie, Debbie S. Gipson, Larry A. Greenbaum, Lawrence B. Holzman, Matthias Kretzler, Bruce Robinson, William E. Smoyer, Lisa M. Guay-Woodford, Wooin Ahn, Gerald B. Appel, Revekka Babayev, Ibrahim Batal, Eric Brown, Eric S. Campenot, Pietro Canetta, Lucrezia Carlassara, Brenda Chan, Debanjana Chatterjee, Vivette D. D’Agati, Elisa Delbarba, Samriti Dogra, Hilda Fernandez, Bartosz Foroncewicz, Gian Marco Ghiggeri, William H. Hines, S. Ali Husain, Namrata G. Jain, Pascale Khairallah, Byum Hee Kil, Anushya Jeyabalan, Wai L. Lau, Fangming Lin, Francesca Lugani, Glen Markowitz, Sumit Mohan, Xueru Mu, Krzysztof Mucha, Thomas L. Nickolas, Stacy Piva, Jai Radhakrishnan, Maya K. Rao, Renu Regunathan-Shenk, Simone Sanna-Cherchi, Dominick Santoriello, Shayan Shirazian, Michael B. Stokes, Natalie Yu, Anthony M. Valeri, Ronald Zviti, Amira Al-Uzri, Josephine Ambruzs, Isa Ashoor, Diego Aviles, Rossana Baracco, John Barcia, Sharon Bartosh, Craig Belsha, Michael C. Braun, Yi Cai, Vladimir Chernitskiy, Aftab Chishti, Donna Claes, Kira Clark, Carl Cramer, Keefe Davis, Amy Dutcher, Elif Erkan, Daniel Feig, Michael Freundlich, Joseph Gaut, Rasheed Gbadegesin, Melisha Hanna, Guillermo Hidalgo, David Hooper, Tracy E. Hunley, Amrish Jain, Mahmoud Kallash, Margo Kamel, Myda Khalid, Theresa Kump, Jerome C. Lane, Helen Liapis, John Mahan, Nisha Mathews, Carla Nester, Cynthia Pan, Larry Patterson, Hiren Patel, Alice Raad, Cynthia Silva, Rajasree Sreedharan, Tarak Srivastava, Julia Steinke, Susan Sumner, Tetyana L. Vasylyeva, Chia-shi Wang, Donald J. Weaver, Craig S. Wong, Hong Yin, Anand Achanti, Salem Almaani, Isabelle Ayoub, Milos Budisavljevic, Maggie D'Angelo, Vimal Derebail, Huma Fatima, Ronald Falk, Agnes Fogo, Keisha Gibson, Dorey Glenn, Susan Hogan, Koyal Jain, Bruce Julian, Jason Kidd, H. Davis Massey, Amy Mottl, Shannon Murphy, Tibor Nadasdy, Jan Novak, Samir Parikh, Caroline Poulton, Thomas Brian Powell, Bryce Reeve, Matthew Renfrow, Monica Reynolds, Dana Rizk, Brad Rovin, Virginie Royal, Manish Saha, Neil Sanghani, Sally Self, Sharon Adler, Nada Alachkar, Charles Alpers, Raed Bou Matar, Carmen Avila-Casado, Serena Bagnasco, Emily Brede, Elizabeth Brown, Daniel Cattran, Michael Choi, Gabriel Contreras, Katherine M. Dell, Darren Dewalt, Michelle Denburg, Ram Dukkipati, Fernando C. Fervenza, Alessia Fornoni, Crystal Gadegbeku, Patrick Gipson, Anny Gonzalez-Zea, Leah Hasely, Elizabeth Hendren, Sangeeta Hingorani, Michelle Hladunewich, Jonathan Hogan, Jean Hou, J. Ashley Jefferson, Kenar Jhaveri, Duncan B. Johnstone, Frederick Kaskel, Amy Kogan, Jeffrey Kopp, Richard Lafayette, Kevin V. Lemley, Laura Malaga-Dieguez, Kevin Meyers, Alicia Neu, Michelle Marie O'Shaughnessy, John F. O’Toole, Andrea Oliverio, Matthew Palmer, Rulan Parekh, Renee Pitter, Heather Reich, Kimberly Reidy, Helbert Rondon, Kamalanathan K. Sambandam, Matthew Sampson, John R. Sedor, David T. Selewski, Christine B. Sethna, Jeffrey Schelling, John C. Sperati, Agnes Swiatecka-Urban, Katherine R. Tuttle, Meryl Waldman, Joseph Weisstuch, Roger Wiggins, David Williams, Cheryl Winkler, Eric Young, Olga Zhdanova, Charlotte Beil, Richard Eikstadt, Brenda Gillespie, John Graff, Stephen Hewitt, Emily Herreshoff, Chrysta Lienczewski, Sarah Mansfield, Laura Mariani, Keith McCullough, Nicholas Moore, Bruce M. Robinson, Melissa Sexton, Jonathan Troost, Matthew Wladkowski, Jarcy Zee, and Dawn Zinsser

Subjects
Adult, Male, medicine.medical_specialty, Henoch-Schonlein purpura, Adolescent, 030232 urology & nephrology, Disease, Glomerulonephritis, Membranous, Risk Assessment, Severity of Illness Index, Article, Nephropathy, Diagnosis, Differential, 03 medical and health sciences, Young Adult, 0302 clinical medicine, Focal segmental glomerulosclerosis, Glomerulonephritis, Sex Factors, Membranous nephropathy, Internal medicine, medicine, Humans, Minimal change disease, 030212 general & internal medicine, Prospective Studies, Prospective cohort study, Child, Academic Medical Centers, business.industry, Glomerulosclerosis, Focal Segmental, Nephrosis, Lipoid, Biopsy, Needle, Age Factors, Glomerulonephritis, IGA, Middle Aged, medicine.disease, Prognosis, Immunohistochemistry, Survival Analysis, Nephrology, Multivariate Analysis, Disease Progression, Linear Models, Kidney Failure, Chronic, Female, business, Kidney disease
Abstract

Rationale & Objectives Glomerular diseases, including minimal change disease, focal segmental glomerulosclerosis, membranous nephropathy, and immunoglobulin A (IgA) nephropathy, share clinical presentations, yet result from multiple biological mechanisms. Challenges to identifying underlying mechanisms, biomarkers, and new therapies include the rarity of each diagnosis and slow progression, often requiring decades to measure the effectiveness of interventions to prevent end-stage kidney disease (ESKD) or death. Study Design Multicenter prospective cohort study. Setting & Participants Cure Glomerulonephropathy (CureGN) will enroll 2,400 children and adults with minimal change disease, focal segmental glomerulosclerosis, membranous nephropathy, or IgA nephropathy (including IgA vasculitis) and a first diagnostic kidney biopsy within 5 years. Patients with ESKD and those with secondary causes of glomerular disease are excluded. Exposures Clinical data, including medical history, medications, family history, and patient-reported outcomes, are obtained, along with a digital archive of kidney biopsy images and blood and urine specimens at study visits aligned with clinical care 1 to 4 times per year. Outcomes Patients are followed up for changes in estimated glomerular filtration rate, disease activity, ESKD, and death and for nonrenal complications of disease and treatment, including infection, malignancy, cardiovascular, and thromboembolic events. Analytical Approach The study design supports multiple longitudinal analyses leveraging the diverse data domains of CureGN and its ancillary program. At 2,400 patients and an average of 2 years' initial follow-up, CureGN has 80% power to detect an HR of 1.4 to 1.9 for proteinuria remission and a mean difference of 2.1 to 3.0mL/min/1.73m2 in estimated glomerular filtration rate per year. Limitations Current follow-up can only detect large differences in ESKD and death outcomes. Conclusions Study infrastructure will support a broad range of scientific approaches to identify mechanistically distinct subgroups, identify accurate biomarkers of disease activity and progression, delineate disease-specific treatment targets, and inform future therapeutic trials. CureGN is expected to be among the largest prospective studies of children and adults with glomerular disease, with a broad goal to lessen disease burden and improve outcomes.

Published
2018

5. Clinical Characteristics and Treatment Patterns of Children and Adults With IgA Nephropathy or IgA Vasculitis: Findings From the CureGN Study

Author

David T. Selewski, Josephine M. Ambruzs, Gerald B. Appel, Andrew S. Bomback, Raed Bou Matar, Yi Cai, Daniel C. Cattran, Aftab S. Chishti, Vivette D. D'Agati, Cynthia J. D'Alessandri-Silva, Rasheed A. Gbadegesin, Jonathan J. Hogan, Sandra Iragorri, J. Charles Jennette, Bruce A. Julian, Myda Khalid, Richard A. Lafayette, Helen Liapis, Francesca Lugani, Sarah A. Mansfield, Sherene Mason, Patrick H. Nachman, Cynthia C. Nast, Carla M. Nester, Damien G. Noone, Jan Novak, Michelle M. O'Shaughnessy, Heather N. Reich, Michelle N. Rheault, Dana V. Rizk, Manish K. Saha, Neil S. Sanghani, C. John Sperati, Rajasree Sreedharan, Tarak Srivastava, Agnieszka Swiatecka-Urban, Katherine Twombley, Tetyana L. Vasylyeva, Donald J. Weaver, Hong Yin, Jarcy Zee, Ronald J. Falk, Ali G. Gharavi, Brenda W. Gillespie, Debbie S. Gipson, Larry A. Greenbaum, Lawrence B. Holzman, Matthias Kretzler, Bruce M. Robinson, William E. Smoyer, Michael Flessner, Lisa M. Guay-Woodford, Krzysztof Kiryluk, Ali Gharavi, Wooin Ahn, Rupali S. Avasare, Revekka Babayev, Ibrahim Batal, Eric Brown, Eric S. Campenot, Pietro Canetta, Brenda Chan, Vivette D. D’Agati, Hilda Fernandez, Bartosz Foroncewicz, Gian Marco Ghiggeri, William H. Hines, Namrata G. Jain, Fangming Lin, Maddalena Marasa, Glen Markowitz, Sumit Mohan, Krzysztof Mucha, Thomas L. Nickolas, Jai Radhakrishnan, Maya K. Rao, Renu Regunathan-Shenk, Simone Sanna-Cherchi, Dominick Santoriello, Michael B. Stokes, Natalie Yu, Anthony M. Valeri, Ronald Zviti, Amira Al-Uzri, Isa Ashoor, Diego Aviles, Rossana Baracco, John Barcia, Sharon Bartosh, Craig Belsha, Michael C. Braun, Aftab Chishti, Donna Claes, Carl Cramer, Keefe Davis, Elif Erkan, Daniel Feig, Michael Freundlich, Melisha Hanna, Guillermo Hidalgo, Amrish Jain, Mahmoud Kallash, Jerome C. Lane, John Mahan, Nisha Mathews, Carla Nester, Cynthia Pan, Hiren Patel, Adelaide Revell, Julia Steinke, Scott E. Wenderfer, Craig S. Wong, Ronald Falk, William Cook, Vimal Derebail, Agnes Fogo, Adil Gasim, Todd Gehr, Raymond Harris, Jason Kidd, Louis-Philippe Laurin, Will Pendergraft, Vincent Pichette, Thomas Brian Powell, Matthew B. Renfrow, Virginie Royal, Sharon Adler, Charles Alpers, Elizabeth Brown, Daniel Cattran, Michael Choi, Katherine M. Dell, Ram Dukkipati, Fernando C. Fervenza, Alessia Fornoni, Crystal Gadegbeku, Patrick Gipson, Leah Hasely, Sangeeta Hingorani, Michelle A. Hladunewich, Jonathan Hogan, J. Ashley Jefferson, Kenar Jhaveri, Duncan B. Johnstone, Frederick Kaskel, Amy Kogan, Jeffrey Kopp, Kevin V. Lemley, Laura Malaga- Dieguez, Kevin Meyers, Alicia Neu, Michelle Marie O’Shaughnessy, John F. O’Toole, Rulan Parekh, Heather Reich, Kimberly Reidy, Helbert Rondon, Kamalanathan K. Sambandam, John R. Sedor, Christine B. Sethna, Jeffrey Schelling, Agnes Swiatecka-Urban, Howard Trachtman, Katherine R. Tuttle, Joseph Weisstuch, Olga Zhdanova, Brenda Gillespie, Laura Barisoni, Sarah Mansfield, Laura Mariani, and Matthew Wladkowski

Subjects
medicine.medical_specialty, 030232 urology & nephrology, Disease, 030204 cardiovascular system & hematology, urologic and male genital diseases, Nephropathy, 03 medical and health sciences, 0302 clinical medicine, Focal segmental glomerulosclerosis, Membranous nephropathy, Clinical Research, Internal medicine, IgA nephropathy (IgAN), Biopsy, medicine, Minimal change disease, medicine.diagnostic_test, business.industry, IgA vasculitis (IgAV), medicine.disease, 3. Good health, IgA vasculitis, Nephrology, Cohort, business, glomerulonephritis, Henoch-Schönlein purpura (HSP)
Abstract

Introduction The Cure Glomerulonephropathy Network (CureGN) is a 66-center longitudinal observational study of patients with biopsy-confirmed minimal change disease, focal segmental glomerulosclerosis, membranous nephropathy, or IgA nephropathy (IgAN), including IgA vasculitis (IgAV). This study describes the clinical characteristics and treatment patterns in the IgA cohort, including comparisons between IgAN versus IgAV and adult versus pediatric patients. Methods Patients with a diagnostic kidney biopsy within 5 years of screening were eligible to join CureGN. This is a descriptive analysis of clinical and treatment data collected at the time of enrollment. Results A total of 667 patients (506 IgAN, 161 IgAV) constitute the IgAN/IgAV cohort (382 adults, 285 children). At biopsy, those with IgAV were younger (13.0 years vs. 29.6 years, P < 0.001), more frequently white (89.7% vs. 78.9%, P = 0.003), had a higher estimated glomerular filtration rate (103.5 vs. 70.6 ml/min per 1.73 m2, P < 0.001), and lower serum albumin (3.4 vs. 3.8 g/dl, P < 0.001) than those with IgAN. Adult and pediatric individuals with IgAV were more likely than those with IgAN to have been treated with immunosuppressive therapy at or prior to enrollment (79.5% vs. 54.0%, P < 0.001). Conclusion This report highlights clinical differences between IgAV and IgAN and between children and adults with these diagnoses. We identified differences in treatment with immunosuppressive therapies by disease type. This description of baseline characteristics will serve as a foundation for future CureGN studies.

Published
2018

6. Health-related quality of life in glomerular disease

Author

Pietro A. Canetta, Jonathan P. Troost, Shannon Mahoney, Amy J. Kogon, Noelle Carlozzi, Sharon M. Bartosh, Yi Cai, T. Keefe Davis, Hilda Fernandez, Alessia Fornoni, Rasheed A. Gbadegesin, Emily Herreshoff, John D. Mahan, Patrick H. Nachman, David T. Selewski, Christine B. Sethna, Tarak Srivastava, Katherine R. Tuttle, Chia-shi Wang, Ronald J. Falk, Ali G. Gharavi, Brenda W. Gillespie, Larry A. Greenbaum, Lawrence B. Holzman, Matthias Kretzler, Bruce M. Robinson, William E. Smoyer, Lisa M. Guay-Woodford, Bryce Reeve, Debbie S. Gipson, Wooin Ahn, Gerald B. Appel, Revekka Babayev, Ibrahim Batal, Andrew S. Bomback, Eric Brown, Eric S. Campenot, Pietro Canetta, Lucrezia Carlassara, Brenda Chan, Debanjana Chatterjee, Vivette D. D’Agati, Elisa Delbarba, Samriti Dogra, Bartosz Foroncewicz, Gian Marco Ghiggeri, William H. Hines, S. Ali Husain, Namrata G. Jain, Pascale Khairallah, Byum Hee Kil, Krzysztof Kiryluk, Anushya Jeyabalan, Wai L. Lau, Fangming Lin, Francesca Lugani, Maddalena Marasa, Glen Markowitz, Sumit Mohan, Xueru Mu, Krzysztof Mucha, Thomas L. Nickolas, Stacy Piva, Jai Radhakrishnan, Maya K. Rao, Regunathan-Shenk Renu, Simone Sanna-Cherchi, Dominick Santoriello, Shayan Shirazian, Michael B. Stokes, Natalie Uy, Anthony M. Valeri, Amira Al-Uzri, Josephine Ambruzs, Isa Ashoor, Diego Aviles, Rossana Baracco, John Barcia, Sharon Bartosh, Craig Belsha, Corinna Bowers, Michael C. Braun, Vladimir Chernitskiy, Aftab Chishti, Donna Claes, Kira Clark, Carl Cramer, Keefe Davis, Elif Erkan, Daniel Feig, Michael Freundlich, Joseph Gaut, Rasheed Gbadegesin, Melisha Hanna, Guillermo Hidalgo, David Hooper, Tracy E. Hunley, Amrish Jain, Mahmoud Kallash, Margo Kamel, Myda Khalid, Jon B. Klein, Theresa Kump, Jerome C. Lane, Helen Liapis, John Mahan, Carla Nester, Cynthia Pan, Larry Patterson, Hiren Patel, Alice Raad, Adelaide Revell, Michelle N. Rheault, Cynthia Silva, Rajasree Sreedharan, Julia Steinke, Susan Sumner, Katherine Twombley, Scott E. Wenderfer, Tetyana L. Vasylyeva, Donald J. Weaver, Craig S. Wong, Hong Yin, Anand Achanti, Salem Almaani, Isabelle Ayoub, Milos Budisavljevic, Maggie D’Angelo, Huma Fatima, Ronald Falk, Agnes Fogo, Keisha Gibson, Dorey Glenn, Susan Hogan, J. Charles Jennette, Bruce Julian, Jason Kidd, Louis-Philippe Laurin, H. Davis Massey, Amy Mottl, Shannon Murphy, Patrick Nachman, Tibor Nadasdy, Jan Novak, Samir Parikh, Caroline Poulton, Thomas Brian Powell, Matthew Renfrow, Monica Reynolds, Dana Rizk, Brad Rovin, Virginie Royal, Neil Sanghani, Sally Self, Sharon Adler, Nada Alachkar, Charles Alpers, Raed Bou Matar, Carmen Avila-Casado, Serena Bagnasco, Emily Brede, Elizabeth Brown, Daniel Cattran, Michael Choi, Katherine M. Dell, Darren Dewalt, Michelle Denburg, Ram Dukkipati, Fernando C. Fervenza, Crystal Gadegbeku, Patrick Gipson, Anny Gonzalez-Zea, Leah Hasely, Elizabeth Hendren, Sangeeta Hingorani, Michelle Hladunewich, Jonathan Hogan, Jean Hou, J. Ashley Jefferson, Kenar Jhaveri, Duncan B. Johnstone, Frederick Kaskel, Amy Kogan, Jeffrey Kopp, Richard Lafayette, Kevin V. Lemley, Laura Malaga-Dieguez, Kevin Meyers, Alicia Neu, Michelle Marie O'Shaughnessy, John F. O’Toole, Andrea Oliverio, Matthew Palmer, Rulan Parekh, Renee Pitter, Heather Reich, Kimberly Reidy, Helbert Rondon, Kamalanathan K. Sambandam, Matthew Sampson, John R. Sedor, Jeffrey Schelling, John C. Sperati, Agnes Swiatecka-Urban, Howard Trachtman, Meryl Waldman, Joseph Weisstuch, Roger Wiggins, David Williams, Cheryl Winkler, Suzanne Vento, Eric Young, Olga Zhdanova, Laura Barisoni, Charlotte Beil, Richard Eikstadt, Brenda Gillespie, John Graff, Stephen Hewitt, Peg Hill-Callahan, Margaret Helmuth, Chrysta Lienczewski, Sarah Mansfield, Laura Mariani, Keith McCullough, Nicholas Moore, Cynthia C. Nast, Melissa Sexton, Jonathan Troost, Matthew Wladkowski, Jarcy Zee, and Dawn Zinsser

Subjects
0301 basic medicine, Adult, Male, medicine.medical_specialty, Adolescent, 030232 urology & nephrology, Renal function, Article, Nephropathy, 03 medical and health sciences, 0302 clinical medicine, Focal segmental glomerulosclerosis, Glomerulonephritis, Membranous nephropathy, Quality of life, Internal medicine, medicine, Edema, Humans, Minimal change disease, Longitudinal Studies, Child, Aged, business.industry, Middle Aged, medicine.disease, Obesity, humanities, 030104 developmental biology, Nephrology, Quality of Life, Anxiety, Female, Self Report, medicine.symptom, business
Abstract

There is scant literature describing the effect of glomerular disease on health-related quality of life (HRQOL). The Cure Glomerulonephropathy study (CureGN) is an international longitudinal cohort study of children and adults with four primary glomerular diseases (minimal change disease, focal segmental glomerulosclerosis, membranous nephropathy, and IgA nephropathy). HRQOL is systematically assessed using items from the Patient-Reported Outcomes Measurement Informative System (PROMIS). We assessed the relationship between HRQOL and demographic and clinical variables in 478 children and 1115 adults at the time of enrollment into CureGN. Domains measured by PROMIS items included global assessments of health, mobility, anxiety, fatigue, and sleep impairment, as well as a derived composite measure incorporating all measured domains. Multivariable models were created that explained 7 to 32% of variance in HRQOL. Patient-reported edema consistently had the strongest and most robust association with each measured domain of HRQOL in multivariable analysis (adjusted β [95% CI] for composite PROMIS score in children, -5.2 [-7.1 to -3.4]; for composite PROMIS score in adults, -6.1 [-7.4 to -4.9]). Female sex, weight (particularly obesity), and estimated glomerular filtration rate were also associated with some, but not all, domains of HRQOL. Primary diagnosis, disease duration, and exposure to immunosuppression were not associated with HRQOL after adjustment. Sensitivity analyses and interaction testing demonstrated no significant association between disease duration or immunosuppression and any measured domain of HRQOL. Thus, patient-reported edema has a consistent negative association with HRQOL in patients with primary glomerular diseases, with substantially greater impact than other demographic and clinical variables.

Published
2018

7. [Untitled]

Author

Erwin Wang, Karen Delorenzo, Joseph Weisstuch, Stephanie Sterling, Michael Phillips, Martha J. Radford, Jennier Frontera, and Archana Saxena

Subjects
medicine.medical_specialty, business.industry, Emergency medicine, Medicine, Critical Care and Intensive Care Medicine, business, Urine sample
Published
2019
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8. VEGF Inhibition and Renal Thrombotic Microangiopathy

Author

Hans-Peter Gerber, J. Ashley Jefferson, Vera Eremina, Susan E. Quaggin, Napoleone Ferrara, Joseph Weisstuch, Charles E. Alpers, Catherine A. Richardson, Jeffrey B. Kopp, Peter H. Backx, Mark Haas, Jolanta Kowalewska, M. Golam Kabir, Howard S. Hochster, and Laura Barisoni

Subjects
Male, Vascular Endothelial Growth Factor A, Pathology, medicine.medical_specialty, Thrombotic microangiopathy, Bevacizumab, Kidney Glomerulus, Angiogenesis Inhibitors, Antibodies, Monoclonal, Humanized, urologic and male genital diseases, Renal Circulation, Pathogenesis, Mice, chemistry.chemical_compound, Neoplasms, medicine, Animals, Humans, RNA, Messenger, Aged, Mice, Knockout, Kidney, Podocytes, Vascular disease, business.industry, Microcirculation, Antibodies, Monoclonal, Thrombosis, General Medicine, Middle Aged, medicine.disease, Vascular endothelial growth factor, Proteinuria, Vascular endothelial growth factor A, medicine.anatomical_structure, chemistry, Gene Targeting, Immunology, Onconephrology, Female, business, Signal Transduction, medicine.drug
Abstract

The glomerular microvasculature is particularly susceptible to injury in thrombotic microangiopathy, but the mechanisms by which this occurs are unclear. We report the cases of six patients who were treated with bevacizumab, a humanized monoclonal antibody against vascular endothelial growth factor (VEGF), in whom glomerular disease characteristic of thrombotic microangiopathy developed. To show that local reduction of VEGF within the kidney is sufficient to trigger the pathogenesis of thrombotic microangiopathy, we used conditional gene targeting to delete VEGF from renal podocytes in adult mice; this resulted in a profound thrombotic glomerular injury. These observations provide evidence that glomerular injury in patients who are treated with bevacizumab is probably due to direct targeting of VEGF by antiangiogenic therapy.

Published
2008
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9. Onset of glomerular hypertension with aging precedes injury in the spontaneously hypertensive rat

Author

Joseph Weisstuch, Lance D. Dworkin, Evelyn Tolbert, and Helen D. Feiner

Subjects
Male, Aging, medicine.medical_specialty, Hypertension, Renal, Physiology, Renal glomerulus, Kidney Glomerulus, Hemodynamics, Punctures, Nitric Oxide, urologic and male genital diseases, Rats, Inbred WKY, Renal Circulation, Spontaneously hypertensive rat, Rats, Inbred SHR, Internal medicine, medicine, Animals, Enzyme Inhibitors, Kidney, Endothelin-1, urogenital system, business.industry, Angiotensin II, Rats, NG-Nitroarginine Methyl Ester, medicine.anatomical_structure, Endocrinology, Blood pressure, Renal blood flow, cardiovascular system, Vascular resistance, Nitric Oxide Synthase, business
Abstract

The changes in renal hemodynamics that develop with aging in spontaneously hypertensive rats (SHR) were examined. Micropuncture studies revealed that glomerular capillary pressure was elevated in SHR at 9 mo of age compared with 3-mo-old SHR and 9-mo-old normotensive Wistar-Kyoto rats. Glomerular hypertension developed because of a small increase in systemic blood pressure and a decline in preglomerular vascular resistance, allowing transmission of elevated systemic pressure to the glomerular capillaries. The hemodynamic alterations were not a compensatory response to injury, inasmuch as vascular and glomerular morphology were normal in 9-mo-old SHR. To determine the mechanism of these changes, the activity of several vasoactive systems was examined. Similar changes in renal hemodynamics were observed in young and old SHR after blockade of nitric oxide production and after intravenous administration of endothelin. However, ANG II produced a proportionally greater reduction in glomerular filtration rate than renal blood flow in older SHR. These data suggest that reduced endogenous activity of the renin-angiotensin system leads to glomerular hypertension in aging SHR. Late development of glomerular hypertension may contribute to the subsequent appearance of glomerular sclerosis and progressive renal failure in these rats.

Published
2000
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10. Expression of endothelial protein C receptor in cortical peritubular capillaries associates with a poor clinical response in lupus nephritis

Author

Julie S. Schwartzman, Howard M. Belmont, Stephen Bernstein, Tania L. Rivera, Joseph Weisstuch, Joan T. Merrill, David B. Thomas, Laura Barisoni, David T. Liu, Charles T. Esmon, Anca Askanase, Jill P. Buyon, Robert R. Clancy, Mimi Y. Kim, Chung E. Tseng, and Peter M. Izmirly

Subjects
Nephrology, Adult, Male, medicine.medical_specialty, Pathology, Kidney Cortex, endocrine system diseases, Biopsy, Lupus nephritis, Renal function, Receptors, Cell Surface, Peritubular capillaries, Young Adult, Rheumatology, Basic Science, Antigens, CD, Internal medicine, medicine, Humans, Pharmacology (medical), Prospective Studies, Kidney, business.industry, Endothelial Protein C Receptor, Middle Aged, medicine.disease, Prognosis, Lupus Nephritis, humanities, Capillaries, medicine.anatomical_structure, Treatment Outcome, Renal pathology, Immunohistochemistry, Female, Endothelium, Vascular, business, Biomarkers, Kidney disease, Follow-Up Studies, Glomerular Filtration Rate
Abstract

To study the membrane expression of endothelial protein C receptor (mEPCR) in the renal microvasculature in lupus nephritis (LN) as a potential marker of injury and/or prognostic indicator for response to therapy.mEPCR expression was analysed by immunohistochemistry in normal kidney and in 59 biopsies from 49 patients with LN. Clinical parameters were assessed at baseline, 6 months and 1 year.mEPCR was expressed in the medulla, arterial endothelium and cortical peritubular capillaries (PTCs) in all biopsies with LN but not in the cortical PTCs of normal kidney. Positive mEPCR staining in25% of the PTCs was observed in 16/59 biopsies and associated with poor response to therapy. Eleven (84.6%) of 13 patients with positive staining for mEPCR in25% of the PTCs and follow-up at 6 months did not respond to therapy, compared with 8/28 (28.6%) with mEPCR staining inor =25% PTCs, P = 0.0018. At 1 year, 10 (83.3%) of 12 patients with positive mEPCR staining in25% of the PTCs did not respond to therapy (with two progressing to end-stage renal disease) compared with 8/24 (33.3%) with positive staining inor =25% of the PTCs, P = 0.0116. Although tubulo-interstitial damage (TID) was always accompanied by mEPCR, this endothelial marker was extensively expressed in the absence of TID suggesting that poor response could not be attributed solely to increased TID. mEPCR expression was independent of International Society of Nephrology/Renal Pathology Society class, activity and chronicity indices.Increased mEPCR expression in PTCs may represent a novel marker of poor response to therapy for LN.

Published
2009

11. Current therapies for lupus nephritis in an ethnically heterogeneous cohort

Author

Lauri Benton, Peter M. Izmirly, Jill P. Buyon, Melissa Latorre, Laura Barisoni, Tania L. Rivera, Joseph Weisstuch, H. Michael Belmont, Anca Askanase, Chung E. Tseng, and Seema Malani

Subjects
Adult, Male, medicine.medical_specialty, Cyclophosphamide, Adolescent, Immunology, Population, Lupus nephritis, Gastroenterology, Cohort Studies, chemistry.chemical_compound, Young Adult, Rheumatology, Internal medicine, medicine, Immunology and Allergy, Humans, education, Child, Serum Albumin, Aged, Retrospective Studies, Creatinine, education.field_of_study, business.industry, Anti-Inflammatory Agents, Non-Steroidal, Racial Groups, Retrospective cohort study, Middle Aged, Mycophenolic Acid, medicine.disease, Connective tissue disease, Lupus Nephritis, chemistry, Child, Preschool, Female, business, Nephritis, Immunosuppressive Agents, Kidney disease, medicine.drug
Abstract

Objective.To evaluate responses to mycophenolate mofetil (MMF) and intravenous cyclophosphamide (CYC) in lupus nephritis in a multiethnic population.Methods.This was a retrospective study of all patients with systemic lupus erythematosus (SLE) that underwent kidney biopsy at New York University Medical Center. Patients with followup of at least 6 months were included. Clinical response was defined as complete (return to ± 10% of normal) or partial (improvement of 50% in abnormal renal measurements).Results.Ninty-nine patients were included in the study: 86% females, 86% non-Caucasian, age 34.2 ± 1.1 years, 62% with proliferative nephritis (PN; ISN/RPS-III and IV), and 32% with membranous nephritis (MN; ISN/RPS-V). Of the 70 patients with PN, 37 were treated with CYC and 33 with MMF. The baseline characteristics of the 2 treatment groups were different in the incidence of ISN/RPS-IV, values of serum creatinine and serum albumin, and type of insurance (p < 0.05). The response rate was greater in the MMF than in the CYC group (70% vs 41%). Responses to MMF were different in Asians (11/11), Caucasians (4/5), African Americans (3/5), and Hispanics (5/11). Responses to CYC had a similar distribution (Asians 6/10, Caucasians 4/5, African Americans 4/9, Hispanics 1/11). In the MN group (N = 23) responses were similar to the PN group (73% MMF and 38% CYC). After adjusting for race, serum creatinine, serum albumin, type of insurance, and class of nephritis, in a logistic regression model, response to MMF was superior to CYC: OR 6.2 (95% CI 1.9–20.2). Hispanics had worse outcome than Caucasians (OR 0.17). Longterm followup suggested no difference in maintenance with MMF or CYC.Conclusion.After controlling for the fact that less severe nephritis is preferentially treated with MMF, we found overall that response to MMF was superior to CYC. In this US population, ethnicity was observed to have an influence on response.

Published
2008

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