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Wang PZ, Pressman A, Sanchez G, Aparicio C, Nielsen A, Avins A. Prior acupuncture experience among elderly participants enrolled in a clinical trial of acupuncture for chronic low back pain: Implications for future trials. Integr Med Res 2024; 13:101042. [PMID: 38765784 PMCID: PMC11101849 DOI: 10.1016/j.imr.2024.101042] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/13/2024] [Accepted: 04/16/2024] [Indexed: 05/22/2024] Open
Abstract
Background The effectiveness of acupuncture for chronic low back pain (cLBP) has not been studied specifically in the 65-and-older population. To inform the validity and generalizability of future acupuncture studies among older adults, we characterized elderly participants' prior experience with and views toward acupuncture and tested for clinical and sociodemographic differences between acupuncture-naïve and non-naïve participants. Methods Data for this study were collected during the baseline telephone interview from the participants enrolled in the Kaiser Permanente Northern California site of an NIH-funded, multicenter clinical trial of acupuncture for cLBP in older adults. Results Nearly two-thirds (65.6 %) of participants surveyed reported they had previously received acupuncture treatment with the vast majority seeking acupuncture treatment for pain-related issues (84.8 %). The majority of these participants reported relatively modest levels of exposure to acupuncture with most participants (63.1 %) reporting fewer than 10 treatment sessions over their lifetimes. There were no significant differences in age, sex, race, ethnicity, disability scores, income levels, or pain levels between the acupuncture-naïve and non-naïve groups. Conclusion Contextual consideration for prior acupuncture utilization rates is warranted and may be higher than expected or previously reported. We found few differences in baseline characteristics between participants who were acupuncture-naïve and those with prior acupuncture experience; thus, future pragmatic clinical trials might relax previous acupuncture-use considerations in their recruitment criteria. For trials focused on acupuncture-naive patients, it may be more feasible to expand the definition of "acupuncture-naive" based on lifetime acupuncture visits or time since last treatment. Trial registration The protocol was registered at clinicaltrials.gov (#NCT04982315).
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Affiliation(s)
- Prince Ziyi Wang
- Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, CA, USA
| | - Alice Pressman
- Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, CA, USA
| | - Gabriela Sanchez
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
| | - Crystal Aparicio
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
| | - Arya Nielsen
- Icahn School of Medicine at Mount Sinai, Department of Family Medicine & Community Health. New York, New York, USA
| | - Andrew Avins
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
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Staras SAS, Wollney EN, Emerson LE, Silver N, Dziegielewski PT, Hansen MD, Sanchez G, D'Ingeo D, Johnson‐Mallard V, Renne R, Fredenburg K, Gutter M, Zamojski K, Vandeweerd C, Bylund CL. Identifying locally actionable strategies to increase participant acceptability and feasibility to participate in Phase I cancer clinical trials. Health Expect 2023; 27:e13920. [PMID: 38041447 PMCID: PMC10726272 DOI: 10.1111/hex.13920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 10/16/2023] [Accepted: 11/09/2023] [Indexed: 12/03/2023] Open
Abstract
BACKGROUND Recruitment of cancer clinical trial (CCT) participants, especially participants representing the diversity of the US population, is necessary to create successful medications and a continual challenge. These challenges are amplified in Phase I cancer trials that focus on evaluating the safety of new treatments and are the gateway to treatment development. In preparation for recruitment to a Phase I recurrent head and neck cancer (HNC) trial, we assessed perceived barriers to participation or referral and suggestions for recruitment among people with HNC and community physicians (oncologist, otolaryngologist or surgeon). METHODS Between December 2020 and February 2022, we conducted a qualitative needs assessment via semistructured interviews with a race and ethnicity-stratified sample of people with HNC (n = 30: 12 non-Hispanic White, 9 non-Hispanic African American, 8 Hispanic and 1 non-Hispanic Pacific Islander) and community physicians (n = 16) within the University of Florida Health Cancer Center catchment area. Interviews were analyzed using a qualitative content analysis approach to describe perspectives and identify relevant themes. RESULTS People with HNC reported thematic barriers included: concerns about side effects, safety and efficacy; lack of knowledge and systemic and environmental obstacles. Physicians identified thematic barriers of limited physician knowledge; clinic and physician barriers and structural barriers. People with HNC and physicians recommended themes included: improved patient education, dissemination of trial information and interpersonal communication between community physicians and CCT staff. CONCLUSIONS The themes identified by people with HNC and community physicians are consistent with research efforts and recommendations on how to increase the participation of people from minoritized populations in CCTs. This community needs assessment provides direction on the selection of strategies to increase CCT participation and referral. PATIENT OR PUBLIC CONTRIBUTION This study focused on people with HNC and community physicians' lived experience and their interpretations of how they would consider a future Phase I clinical trial. In addition to our qualitative data reflecting community voices, a community member reviewed the draft interview guide before data collection and both people with HNC and physicians aided interpretation of the findings.
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Affiliation(s)
- Stephanie A. S. Staras
- Department of Health Outcomes and Biomedical InformaticsUniversity of Florida College of MedicineGainesvilleFloridaUSA
| | - Easton N. Wollney
- Department of Health Outcomes and Biomedical InformaticsUniversity of Florida College of MedicineGainesvilleFloridaUSA
| | - Lisa E. Emerson
- Department of Microbiology and Cell Science, Institute of Food and Agricultural SciencesUniversity of FloridaGainesvilleFloridaUSA
| | | | - Peter T. Dziegielewski
- Department of OtolaryngologyUniversity of Florida College of MedicineGainesvilleFloridaUSA
| | - Marta D. Hansen
- Department of Health Outcomes and Biomedical InformaticsUniversity of Florida College of MedicineGainesvilleFloridaUSA
| | - Gabriela Sanchez
- Department of Health Outcomes and Biomedical InformaticsUniversity of Florida College of MedicineGainesvilleFloridaUSA
| | - Dalila D'Ingeo
- Department of Health Outcomes and Biomedical InformaticsUniversity of Florida College of MedicineGainesvilleFloridaUSA
| | | | - Rolf Renne
- Department of Molecular Genetics and MicrobiologyUniversity of Florida College of MedicineGainesvilleFloridaUSA
| | - Kristianna Fredenburg
- Department of PathologyUniversity of Florida College of MedicineGainesvilleFloridaUSA
| | - Michael Gutter
- Department of Family, Youth and Community Sciences, Institute of Food and Agricultural SciencesUniversity of FloridaGainesvilleFloridaUSA
| | - Kendra Zamojski
- Department of Family, Youth and Community Sciences, Institute of Food and Agricultural SciencesUniversity of FloridaGainesvilleFloridaUSA
| | - Carla Vandeweerd
- Department of Health Outcomes and Biomedical InformaticsUniversity of Florida College of MedicineGainesvilleFloridaUSA
| | - Carma L. Bylund
- Department of Health Outcomes and Biomedical InformaticsUniversity of Florida College of MedicineGainesvilleFloridaUSA
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Ampuero R, Sanchez G, Almaraz H, Lecoña J, Heredia F, Heredia F. Vaginal Approach to Cesarean Section Scar Pregnancies: A Standardized Ten-step Surgical Procedure. J Minim Invasive Gynecol 2023; 30:950. [PMID: 37820826 DOI: 10.1016/j.jmig.2023.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/25/2023] [Accepted: 10/06/2023] [Indexed: 10/13/2023]
Abstract
OBJECTIVE To show a 10-step standardized vaginal surgical technique to treat first-trimester cesarean section scar pregnancies. DESIGN A video article with a stepwise demonstration captured in an operation room of a tertiary medical center of a low-income country (Bolivia). SETTING Cesarean section scar pregnancies have a wide variety of management options. We present a vaginal surgical approach that has been developed by our group with no observed complications in 6 consecutive cases at the time of this publication. INTERVENTIONS A 10-step technique: (1) patient positioning, (2) cervical exposure and traction, (3) cervical infiltration with vasoconstrictor solution, (4) anterior mucosal incision and dissection of vesicovaginal space, (5) identification of vascular pedicle and ligation, (6) cold-knife isthmocele incision and ectopic pregnancy evacuation, (7) uterine cavity curettage, (8) hysterorrhaphy with interrupted suture, (9) cystoscopy, and (10) vaginal mucosa closure with running suture. We have used this technique in 6 consecutive patients. Operating time ranged between 20 and 25 minutes. All patients were discharged in postoperative day 1. CONCLUSION We prefer surgical options for these patients because it provides both a complete removal of the ectopic pregnancy and repair of the isthmocele. A vaginal approach to such cases has proven to be a safe, simple, and fully reproductible technique. We find it applicable for any patient with this pathology but especially suitable for low-resource or somehow financially challenged hospitals.
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Affiliation(s)
- Ramiro Ampuero
- Hospital Materno Infantil (Drs. Ampuero, Almaraz, and Lecoña), CNS, La Paz, Bolivia.
| | | | - Hugo Almaraz
- Hospital Materno Infantil (Drs. Ampuero, Almaraz, and Lecoña), CNS, La Paz, Bolivia
| | - Jenny Lecoña
- Hospital Materno Infantil (Drs. Ampuero, Almaraz, and Lecoña), CNS, La Paz, Bolivia
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Wang L, Oill AT, Blanchard M, Wu M, Hibbard J, Sepulveda S, Peter L, Kilpatrick J, Munoz M, Stiller T, Shulkin N, Wagner J, Dolatabadi A, Nisis M, Shepphird J, Sanchez G, Lingaraju C, Manchanda M, Natri H, Kouakanou L, Sun G, Oliver-Cervantes C, Georges J, Aftabizadeh M, Forman S, Priceman S, Ressler J, Arvanitis L, Cotter J, D'Apuzzo M, Tamrazi B, Badie B, Davidson T, Banovich N, Brown C. Expansion of endogenous T cells in CSF of pediatric CNS tumor patients undergoing locoregional delivery of IL13R〿2-targeting CAR T cells: an interim analysis. Res Sq 2023:rs.3.rs-3454977. [PMID: 37961215 PMCID: PMC10635314 DOI: 10.21203/rs.3.rs-3454977/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Outcomes for pediatric brain tumor patients remain poor, and there is optimism that chimeric antigen receptor (CAR) T cell therapy can improve prognosis. Here, we present interim results from the first six pediatric patients treated on an ongoing phase I clinical trial (NCT04510051) of IL13BBζ-CAR T cells delivered weekly into the lateral cerebral ventricles, identifying clonal expansion of endogenous CAR-negative CD8+ T cells in the cerebrospinal fluid (CSF) over time. Additionally, of the five patients evaluable for disease response, three experienced transient radiographic and/or clinical benefit not meeting protocol criteria for response. The first three patients received CAR T cells alone; later patients received lymphodepletion before the first infusion. There were no dose limiting toxicities (DLTs). Aside from expected cytopenias in patients receiving lymphodepletion, serious adverse events possibly attributed to CAR T cell infusion were limited to one episode of headache and one of liver enzyme elevation. One patient withdrew from treatment during the DLT period due to a Grade 3 catheter-related infection and was not evaluable for disease response, although this was not attributed to CAR T cell infusion. Importantly, scRNA- and scTCR-sequence analyses provided insights into CAR T cell interaction with the endogenous immune system. In particular, clonally expanded endogenous CAR- T cells were recovered from the CSF, but not the peripheral blood, of patients who received intraventricular IL13BBζ-CAR T cell therapy. Additionally, although immune infiltrates in CSF and post-therapy tumor did not generally correlate, a fraction of expanded T cell receptors (TCRs) was seen to overlap between CSF and tumor. This has important implications for what samples are collected on these trials and how they are analyzed. These initial findings provide support for continued investigation into locoregionally-delivered IL13BBζ-CAR T cells for children with brain tumors.
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Affiliation(s)
| | | | | | - Melody Wu
- City of Hope National Medical Center
| | - Jonathan Hibbard
- Beckman Research Institute, City of Hope National Medical Center
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Heini Natri
- The Translational Genomics Research Institute
| | | | - Grace Sun
- City of Hope National Medical Center
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Iribarren C, Chandra M, Parikh RV, Sanchez G, Sam DL, Azamian FF, Cho HM, Ding H, Molloi S, Go AS. Breast Arterial Calcification is Associated with Incident Atrial Fibrillation among Older but not Younger Postmenopausal Women. European Heart Journal Open 2023; 3:oead017. [PMID: 36992916 PMCID: PMC10042436 DOI: 10.1093/ehjopen/oead017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/23/2023] [Accepted: 02/26/2023] [Indexed: 03/05/2023]
Abstract
Abstract
Aims
The goal of this study was to examine the association of breast arterial calcification (BAC) presence and quantity with incident atrial fibrillation (AF) in a large cohort of postmenopausal women.
Methods
We conducted a longitudinal cohort study among women free of clinically overt cardiovascular disease (CVD) and AF at baseline (between 10/2012 and 2/2015) when they attended mammography screening. AF incidence was ascertained using diagnostic codes and Natural Language Processing (NLP).
Results
Among 4,908 women, 354 incident cases of AF (7%) were ascertained after a mean (SD) of 7 (2) years of follow-up. In Cox regression adjusting for a propensity score for BAC, BAC presence versus absence was not significantly associated with AF (HR=1.12; 95% CI, 0.89–1.42; p=0.34). However, a significant (a priori hypothesized) age by BAC interaction was found (p=0.02) such that BAC presence was not associated with incident AF in women aged 60-69 years (HR=0.83; 95% CI, 0.63–1.15; p=0.26) but was significantly associated with incident AF in women aged 70 to 79 years (HR=1.75; 95% CI, 1.21–2.53; p=0.003). No evidence of dose-response relationship between BAC gradation and AF was noted in the entire cohort or in age groups separately.
Conclusion
Our results demonstrate, for the first time, an independent association between BAC and AF in women over age 70 years.
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Affiliation(s)
- Carlos Iribarren
- Kaiser Permanente Division of Research , 2000 Broadway, Oakland, CA , USA
| | - Malini Chandra
- Kaiser Permanente Division of Research , 2000 Broadway, Oakland, CA , USA
| | - Rishi V Parikh
- Kaiser Permanente Division of Research , 2000 Broadway, Oakland, CA , USA
| | - Gabriela Sanchez
- Kaiser Permanente Division of Research , 2000 Broadway, Oakland, CA , USA
| | - Danny L Sam
- Kaiser Permanente Santa Clara Medical Center , Santa Clara, CA , USA
| | - Farima Faith Azamian
- Department of Radiological Sciences, University of California Irvine School of Medicine , Irvine, CA , USA
| | - Hyo-Min Cho
- Medical Measurement Team, Korea Research Institute of Standards and Science , Daejeon , South Korea
| | - Huanjun Ding
- Department of Radiological Sciences, University of California Irvine School of Medicine , Irvine, CA , USA
| | - Sabee Molloi
- Department of Radiological Sciences, University of California Irvine School of Medicine , Irvine, CA , USA
| | - Alan S Go
- Kaiser Permanente Division of Research , 2000 Broadway, Oakland, CA , USA
- Departments of Epidemiology, Biostatistics and Medicine, University of California at San Francisco , San Francisco, CA
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Palumbo S, Cirillo G, Sanchez G, Aiello F, Fachin A, Baldo F, Pellegrin MC, Cassio A, Salerno M, Maghnie M, Faienza MF, Wasniewska M, Fintini D, Giacomozzi C, Ciccone S, Miraglia Del Giudice E, Tornese G, Grandone A. A new DLK1 defect in a family with idiopathic central precocious puberty: elucidation of the male phenotype. J Endocrinol Invest 2022; 46:1233-1240. [PMID: 36577869 DOI: 10.1007/s40618-022-01997-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 12/19/2022] [Indexed: 12/29/2022]
Abstract
PURPOSE We aimed to investigate a cohort of female and male patients with idiopathic central precocious puberty (CPP), negative for Makorin Ring Finger Protein 3 (MKRN3) defect, by molecular screening for Delta-like 1 homolog (DLK1) defects. DLK1 is an imprinted gene, whose mutations have been described as a rare cause of CPP in girls and adult women with precocious menarche, obesity and metabolic derangement. METHODS We enrolled 14 girls with familial CPP and 13 boys with familial or sporadic CPP from multiple academic hospital centers. Gene sequencing of DLK1 gene was performed. Circulating levels of DLK1 were measured and clinical and biochemical characteristics were described in those with DLK1 defects. RESULTS A novel heterozygous mutation in DLK1, c.288_289insC (p.Cys97Leufs*16), was identified in a male proband, his sister and their father. Age at onset of puberty was in line with previous reports in the girl and 8 years in the boy. The father with untreated CPP showed short stature. No metabolic derangement was present in the father except hypercholesterolemia. Undetectable Dlk1 serum levels indicated the complete lack of protein production in the three affected patients. CONCLUSION A DLK1 defect has been identified for the first time in a boy, underscoring the importance of genetic testing in males with idiopathic or sporadic CPP. The short stature reported by his untreated father suggests the need for timely diagnosis and treatment of subjects with DLK1 defects.
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Affiliation(s)
- S Palumbo
- Department of Child, Women, General and Specialized Surgery, University of Campania, "L. Vanvitelli", Vico L. De Crecchio n° 2, 80138, Naples, Italy
| | - G Cirillo
- Department of Child, Women, General and Specialized Surgery, University of Campania, "L. Vanvitelli", Vico L. De Crecchio n° 2, 80138, Naples, Italy
| | - G Sanchez
- Department of Child, Women, General and Specialized Surgery, University of Campania, "L. Vanvitelli", Vico L. De Crecchio n° 2, 80138, Naples, Italy
| | - F Aiello
- Department of Child, Women, General and Specialized Surgery, University of Campania, "L. Vanvitelli", Vico L. De Crecchio n° 2, 80138, Naples, Italy
| | - A Fachin
- University of Trieste, Trieste, Italy
| | - F Baldo
- University of Trieste, Trieste, Italy
| | - M C Pellegrin
- Institute for Maternal and Child Health IRCCS Burlo Garofolo, Trieste, Italy
| | - A Cassio
- Pediatric Endocrine Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy
| | - M Salerno
- Pediatric Endocrine Unit, Department of Translational Medical Sciences, University Federico II, Naples, Italy
| | - M Maghnie
- Department of Pediatrics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genova, Genoa, Italy
| | - M F Faienza
- Department of Biomedical Sciences and Human Oncology, Pediatric Unit, University of Bari A. Moro, Bari, Italy
| | - M Wasniewska
- Unit of Paediatrics, Department of Human Pathology of Adulthood and Childhood, University of Messina, Messina, Italy
| | - D Fintini
- Endocrinology Unit, University-Hospital Pediatric Department, Bambino Gesù Children's Hospital, IRCSS, Rome, Italy
| | - C Giacomozzi
- Unit of Pediatrics, Department of Maternal and Child Health, Carlo Poma Hospital, ASST-Mantova, Mantua, Italy
| | - S Ciccone
- Pediatric Unit-"M. Bufalini" Hospital - Cesena, Cesena, Italy
| | - E Miraglia Del Giudice
- Department of Child, Women, General and Specialized Surgery, University of Campania, "L. Vanvitelli", Vico L. De Crecchio n° 2, 80138, Naples, Italy
| | - G Tornese
- Institute for Maternal and Child Health IRCCS Burlo Garofolo, Trieste, Italy
| | - A Grandone
- Department of Child, Women, General and Specialized Surgery, University of Campania, "L. Vanvitelli", Vico L. De Crecchio n° 2, 80138, Naples, Italy.
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Iribarren C, Chandra M, Lee C, Sanchez G, Sam DL, Azamian FF, Cho HM, Ding H, Wong ND, Molloi S. High-sensitivity troponin I is associated with cardiovascular outcomes but not with breast arterial calcification among postmenopausal women. Int J Cardiol Cardiovasc Risk Prev 2022; 15:200157. [PMID: 36573194 PMCID: PMC9789357 DOI: 10.1016/j.ijcrp.2022.200157] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 10/25/2022] [Indexed: 11/09/2022]
Abstract
Background Prior studies support the utility of high sensitivity troponin I (hsTnI) for cardiovascular disease (CVD) risk stratification among asymptomatic populations; however, only two prior studies examined women separately. The association between hsTnI and breast arterial calcification is unknown. Methods Cohort study of 2896 women aged 60-79 years recruited after attending mammography screening between 10/2012 and 2/2015. BAC status (presence versus absence) and quantity (calcium mass mg) was determined using digital mammograms. Pre-specified endpoints were incident coronary heart disease (CHD), ischemic stroke, heart failure and its subtypes and all CVD. Results After 7.4 (SD = 1.7) years of follow-up, 51 CHD, 30 ischemic stroke and 46 heart failure events were ascertained. At a limit of detection of 1.6 ng/L, 98.3 of the cohort had measurable hsTnI concentration. HsTnI in the 4-10 ng/L range were independently associated of CHD (adjusted hazard ratio[aHR] = 2.78; 95% CI, 1.48-5.22; p = 0.002) and all CVD (aHR = 2.06; 95% CI, 1.37-3.09; p = 0.0005) and hsTnI over 10 ng/L was independently associated with CHD (aHR = 4.75; 95% CI, 1.83-12.3; p = 0.001), ischemic stroke (aHR = 3.81; 95% CI, 1.22-11.9; p = 0.02), heart failure (aHR = 3.29; 95% CI, 1.33-8.13; p = 0.01) and all CVD (aHR = 4.78; 95% CI, 2.66-8.59; p < 0.0001). No significant association was found between hsTnI and BAC. Adding hsTnI to a model containing the Pooled Cohorts Equation resulted in significant and clinical important improved calibration, discrimination (Δ Cindex = 6.5; p = 0.02) and reclassification (bias-corrected clinical NRI = 0.18; 95% CI, -0.13-0.49 after adding hsTnI categories). Conclusions Our results support the consideration of hsTnI as a risk enhancing factor for CVD in asymptomatic women that could drive preventive or therapeutic decisions.
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Affiliation(s)
- Carlos Iribarren
- Kaiser Permanente Division of Research, 2000 Broadway, Oakland, CA, USA,Corresponding author. Kaiser Permanente Division of Research, 2000 Broadway, Oakland, CA, 94612, USA.
| | - Malini Chandra
- Kaiser Permanente Division of Research, 2000 Broadway, Oakland, CA, USA
| | - Catherine Lee
- Kaiser Permanente Division of Research, 2000 Broadway, Oakland, CA, USA
| | - Gabriela Sanchez
- Kaiser Permanente Division of Research, 2000 Broadway, Oakland, CA, USA
| | - Danny L. Sam
- Kaiser Permanente Santa Clara Medical Center, Santa Clara, CA, USA
| | - Farima Faith Azamian
- Department of Radiological Sciences, University of California Irvine School of Medicine, Irvine, CA, USA
| | - Hyo-Min Cho
- Medical Measurement Team, Korea Research Institute of Standards and Science, Daejeon, South Korea
| | - Huanjun Ding
- Department of Radiological Sciences, University of California Irvine School of Medicine, Irvine, CA, USA
| | - Nathan D. Wong
- Division of Cardiology, Department of Medicine and Department of Epidemiology, University of California Irvine, Irvine, CA, USA
| | - Sabee Molloi
- Department of Radiological Sciences, University of California Irvine School of Medicine, Irvine, CA, USA
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8
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Ali N, Sharma AA, de Rezende ACP, Otegbeye F, Latif BM, Kerbauy MN, Cooper BW, Sanchez G, Metheny L, Bal SK, Sakuraba R, Tomlinson BK, Boughan KM, Kerbauy L, Malek E, Ribeiro AF, Gallogly M, Mansur D, Pereira G, Weltman E, Sekaly RP, de Lima M, Caimi PF, Hamerschlak N. Targeted Marrow Irradiation Intensification of Reduced Intensity Fludarabine/Busulfan Conditioning for Allogeneic Hematopoietic Stem Cell Transplantation. Transplant Cell Ther 2022; 28:370.e1-370.e10. [DOI: 10.1016/j.jtct.2022.04.001] [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] [Received: 12/19/2021] [Revised: 03/21/2022] [Accepted: 04/01/2022] [Indexed: 10/18/2022]
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9
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Iribarren C, Chandra M, Lee C, Sanchez G, Sam DL, Azamian FF, Cho HM, Ding H, Wong ND, Molloi S. Breast Arterial Calcification: a Novel Cardiovascular Risk Enhancer Among Postmenopausal Women. Circ Cardiovasc Imaging 2022; 15:e013526. [PMID: 35290077 PMCID: PMC8931858 DOI: 10.1161/circimaging.121.013526] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Breast arterial calcification (BAC), a common incidental finding in mammography, has been shown to be associated with angiographic coronary artery disease and cardiovascular disease (CVD) outcomes. We aimed to (1) examine the association of BAC presence and quantity with hard atherosclerotic CVD (ASCVD) and global CVD; (2) ascertain model calibration, discrimination and reclassification of ASCVD risk; (3) assess the joint effect of BAC presence and 10-year pooled cohorts equations risk on ASCVD. METHODS A cohort study of 5059 women aged 60-79 years recruited after attending mammography screening between October 2012 and February 2015 was conducted in a large health plan in Northern California, United States. BAC status (presence versus absence) and quantity (calcium mass mg) was determined using digital mammograms. Prespecified end points were incident hard ASCVD and a composite of global CVD. RESULTS Twenty-six percent of women had BAC >0 mg. After a mean (SD) follow-up of 6.5 (1.6) years, we ascertained 155 (3.0%) ASCVD events and 427 (8.4%) global CVD events. In Cox regression adjusted for traditional CVD risk factors, BAC presence was associated with a 1.51 (95% CI, 1.08-2.11; P=0.02) increased hazard of ASCVD and a 1.23 (95% CI, 1.002-1.52; P=0.04) increased hazard of global CVD. While there was no evidence of dose-response association with ASCVD, a threshold effect was found for global CVD at very high BAC burden (95th percentile when BAC present). BAC status provided additional risk stratification of the pooled cohorts equations risk. We noted improvements in model calibration and reclassification of ASCVD: the overall net reclassification improvement was 0.12 (95% CI, 0.03-0.14; P=0.01) and the bias-corrected clinical-net reclassification improvement was 0.11 (95% CI, 0.01-0.22; P=0.04) after adding BAC status. CONCLUSIONS Our results indicate that BAC has potential utility for primary CVD prevention and, therefore, support the notion that BAC ought to be considered a risk-enhancing factor for ASCVD among postmenopausal women.
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Affiliation(s)
- Carlos Iribarren
- Kaiser Permanente Division of Research, Oakland, CA (C.I., M.C., C.L., G.S.)
| | - Malini Chandra
- Kaiser Permanente Division of Research, Oakland, CA (C.I., M.C., C.L., G.S.)
| | - Catherine Lee
- Kaiser Permanente Division of Research, Oakland, CA (C.I., M.C., C.L., G.S.)
| | - Gabriela Sanchez
- Kaiser Permanente Division of Research, Oakland, CA (C.I., M.C., C.L., G.S.)
| | - Danny L Sam
- Kaiser Permanente Santa Clara Medical Center, CA (D.L.S.)
| | - Farima Faith Azamian
- Department of Radiological Sciences, University of California Irvine School of Medicine (F.F.A., H.D., S.M.)
| | - Hyo-Min Cho
- Medical Measurement Team, Korea Research Institute of Standards and Science, Daejeon, South Korea (H.-M.C.)
| | - Huanjun Ding
- Department of Radiological Sciences, University of California Irvine School of Medicine (F.F.A., H.D., S.M.)
| | - Nathan D Wong
- Division of Cardiology, Department of Medicine and Department of Epidemiology, University of California Irvine (N.D.W.)
| | - Sabee Molloi
- Department of Radiological Sciences, University of California Irvine School of Medicine (F.F.A., H.D., S.M.)
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Jolivalt CG, Aghanoori MR, Navarro-Diaz MC, Han MM, Sanchez G, Guernsey L, Quach D, Johe K, Fernyhough P, Calcutt NA. Enhancement of Mitochondrial Function by the Neurogenic Molecule NSI-189 Accompanies Reversal of Peripheral Neuropathy and Memory Impairment in a Rat Model of Type 2 Diabetes. J Diabetes Res 2022; 2022:8566970. [PMID: 35967127 PMCID: PMC9372526 DOI: 10.1155/2022/8566970] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 06/17/2022] [Indexed: 12/03/2022] Open
Abstract
AIMS Mitochondrial dysfunction contributes to many forms of peripheral and central nervous system degeneration. Therapies that protect mitochondrial number and function have the potential to impact the progression of conditions such as diabetic neuropathy. We therefore assessed indices of mitochondrial function in dorsal root ganglia (DRG) and brain cortex of the Zucker diabetic fatty (ZDF) rat model of type 2 diabetes and tested the therapeutic impact of a neurogenic compound, NSI-189, on both mitochondrial function and indices of peripheral and central neurological dysfunction. MATERIALS AND METHODS ZDF rats were maintained for 16 weeks of untreated diabetes before the start of oral treatment with NSI-189 for an additional 16 weeks. Nerve conduction velocity, sensitivity to tactile and thermal stimuli, and behavioral assays of cognitive function were assessed monthly. AMP-activated protein kinase (AMPK) phosphorylation, mitochondrial protein levels, and respiratory complex activities were assessed in the DRG and brain cortex after 16 weeks of treatment with NSI-189. RESULTS Treatment with NSI-189 selectively elevated the expression of protein subunits of complexes III and V and activities of respiratory complexes I and IV in the brain cortex, and this was accompanied by amelioration of impaired memory function and plasticity. In the sensory ganglia of ZDF rats, loss of AMPK activity was ameliorated by NSI-189, and this was accompanied by reversal of multiple indices of peripheral neuropathy. CONCLUSIONS Efficacy of NSI-189 against dysfunction of the CNS and PNS function in type 2 diabetic rats was accompanied by improvement of mitochondrial function. NSI-189 exhibited actions at different levels of mitochondrial regulation in central and peripheral tissues.
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Affiliation(s)
- C. G. Jolivalt
- University of California San Diego, Department of Pathology, La Jolla, CA, USA
| | - M. R. Aghanoori
- Division of Neurodegenerative Disorders, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada
- Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, MB, Canada
| | - M. C. Navarro-Diaz
- University of California San Diego, Department of Pathology, La Jolla, CA, USA
| | - M. M. Han
- University of California San Diego, Department of Pathology, La Jolla, CA, USA
| | - G. Sanchez
- University of California San Diego, Department of Pathology, La Jolla, CA, USA
| | - L. Guernsey
- University of California San Diego, Department of Pathology, La Jolla, CA, USA
| | - D. Quach
- Neuralstem Inc., Germantown, MD, USA
| | - K. Johe
- Neuralstem Inc., Germantown, MD, USA
| | - P. Fernyhough
- Division of Neurodegenerative Disorders, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada
- Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, MB, Canada
| | - N. A. Calcutt
- University of California San Diego, Department of Pathology, La Jolla, CA, USA
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11
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Sanchez G, Gutierrez A, Jímenez J, Correa R, Alegría Baños J, Grajales Alvarez R. 165P Comparison of male and female breast cancer in reference hospital in Mexico. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.03.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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12
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Mejia A, Arias Perez W, Zambrano Y, Gómez Pulgarín S, Tejada Moreno J, Gónzales L, Jaramillo R, Rodas Y, Navarro E, Ossa A, Borrero M, Angel G, Cock-Rada A, Rinaldi S, Romieu I, Dean M, Sanchez G. Frequency and spectrum of mutations in the BRCA1, BRCA2, PALB2, P53, PTEN, CHEK2, CDH1 genes in women from 3 cities of Colombia. Breast 2021. [DOI: 10.1016/s0960-9776(21)00259-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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13
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Jusko ML, Raiker JS, Campez M, Smith JN, Fosco WD, Horta L, Little K, Espinal K, Sanchez G, Mattfeld AT, Gnagy EM, Greiner AR, Coles EK, Pelham WE. Brief report: Evaluation of working memory deficits in children with ADHD using the NIH list sorting working memory task. Child Neuropsychol 2021; 27:613-620. [PMID: 33480319 DOI: 10.1080/09297049.2021.1876014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Variability in working memory (WM) task selection likely contributes to heterogeneity in effect size estimates of deficiencies in youth with attention-deficit/hyperactivity disorder (ADHD). This has resulted in the development of brief, easy to administer assessments such as the NIH List Sorting Working Memory (LSWM) task from the NIH Cognitive Toolbox in hopes of standardizing measurement of this construct. Unfortunately, substantial questions persist regarding the specific constructs being evaluated by this task (e.g., visuospatial [VS] or phonological [PH] WM) as well as the ability of this task to detect WM deficits in previously identified impaired groups (e.g., ADHD). The current study examines the extent to which the LSWM task is associated with VS and PHWM performance as well as symptoms of ADHD. Additionally, we examined the magnitude of differences between ADHD and Typically Developing (TD) youth on this task relative to empirically derived WM tasks utilized in the past. Forty-six children (25 ADHD, 21 TD) completed multiple WM tasks. The LSWM task was moderately associated with PHWM and demonstrated relatively weaker associations with VSWM. Symptoms of inattention and hyperactivity/impulsivity were unrelated to the LSWM task; whereas tasks assessing PH and VSWM were moderately associated with inattention and weakly associated with hyperactivity (VSWM only). No significant between-group differences in performance emerged on the LSWM task; however, significant large-magnitude group differences were observed on both the PH and VSWM tasks. These findings suggest that the LSWM task may lack the ability to detect WM difficulties in youth with ADHD.
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Affiliation(s)
- Morgan L Jusko
- Center for Children and Families, Florida International University, Miami, FL, USA
| | - Joseph S Raiker
- Center for Children and Families, Florida International University, Miami, FL, USA
| | - Mileini Campez
- Center for Children and Families, Florida International University, Miami, FL, USA
| | - Jessica N Smith
- Center for Children and Families, Florida International University, Miami, FL, USA
| | - Whitney D Fosco
- Department of Psychiatry and Behavioral Health, Penn State Hershey Medical Center, Hershey, PA, USA.,Department of Psychiatry and Behavioral Health, Penn State College of Medicine, Hershey, PA, USA
| | - Leonel Horta
- Center for Children and Families, Florida International University, Miami, FL, USA
| | - Kelcey Little
- Marcus Autism Center, Emory University, Atlanta, GA, USA
| | - Kisbel Espinal
- Center for Children and Families, Florida International University, Miami, FL, USA
| | - Gabriela Sanchez
- Center for Children and Families, Florida International University, Miami, FL, USA
| | - Aaron T Mattfeld
- Center for Children and Families, Florida International University, Miami, FL, USA
| | - Elizabeth M Gnagy
- Center for Children and Families, Florida International University, Miami, FL, USA
| | - Andrew R Greiner
- Center for Children and Families, Florida International University, Miami, FL, USA
| | - Erika K Coles
- Center for Children and Families, Florida International University, Miami, FL, USA
| | - William E Pelham
- Center for Children and Families, Florida International University, Miami, FL, USA
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14
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Iribarren C, Chandra M, Molloi S, Sanchez G, Azamian-Bidgoli F, Cho HM, Ding H, Yaffe K. Breast Arterial Calcification Is Not Associated with Mild Cognitive Impairment or Incident All-Cause Dementia Among Postmenopausal Women: The MINERVA Study. J Womens Health (Larchmt) 2020; 30:848-856. [PMID: 33290145 DOI: 10.1089/jwh.2020.8372] [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] [Indexed: 11/12/2022] Open
Abstract
Background: Since vascular risk factors are implicated in cognitive decline, and breast arterial calcification (BAC) is related to vascular risk, we postulated that BAC may be associated with cognitive impairment and dementia. Methods: We used a multiethnic cohort of 3,913 asymptomatic women 60-79 years of age recruited after mammography screening at a large health plan in 2012-2015. A BAC mass score (mg) was derived from digital mammograms. Cognitive function was measured at baseline using the Montreal Cognitive Assessment (MoCA) and incident all-cause dementia (n = 49 events; median follow-up = 5.6 years) were ascertained with validated ICD-9 and ICD-10 codes. We used cross-sectional linear regression of MoCA scores on BAC, then multinomial logistic regression predicting mild cognitive impairment not progressing to dementia and incident all-cause dementia and, finally, Cox regression of incident all-cause dementia. Results: No association by linear regression was found between MoCA scores and BAC presence in unadjusted or adjusted analysis. Women with severe (upper tertile) BAC had a MoCA score lower by 0.58 points (standard error [SE] = 0.18) relative to women with no BAC. However, this difference disappeared after multivariate adjustment. No significant associations were found in multinomial logistic regression for either BAC presence or gradation in unadjusted or adjusted analysis. No significant associations were found between BAC presence with incident all-cause dementia (fully adjusted hazard ratio = 0.74; 95% confidence interval: 0.39-1.39). Likewise, no significant association with incident all-cause dementia was noted for BAC gradation. Conclusions: Our results do not support the hypothesis that BAC presence or gradation may contribute to cognitive impairment or development of all-cause dementia.
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Affiliation(s)
- Carlos Iribarren
- Kaiser Permanente Division of Research, Oakland, California, USA
| | - Malini Chandra
- Kaiser Permanente Division of Research, Oakland, California, USA
| | - Sabee Molloi
- Department of Radiological Sciences, University of California Irvine School of Medicine, Irvine, California, USA
| | - Gabriela Sanchez
- Kaiser Permanente Division of Research, Oakland, California, USA
| | - Fatemeh Azamian-Bidgoli
- Department of Radiological Sciences, University of California Irvine School of Medicine, Irvine, California, USA
| | - Hyo-Min Cho
- Safety Measurement Institute, Korea Research Institute of Standards and Science (KRISS), Daejeon, Republic of Korea
| | - Huanjun Ding
- Department of Radiological Sciences, University of California Irvine School of Medicine, Irvine, California, USA
| | - Kristine Yaffe
- Departments of Psychiatry and Neurology and Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
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15
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Gerosa L, Chidley C, Fröhlich F, Sanchez G, Lim SK, Muhlich J, Chen JY, Vallabhaneni S, Baker GJ, Schapiro D, Atanasova MI, Chylek LA, Shi T, Yi L, Nicora CD, Claas A, Ng TSC, Kohler RH, Lauffenburger DA, Weissleder R, Miller MA, Qian WJ, Wiley HS, Sorger PK. Receptor-Driven ERK Pulses Reconfigure MAPK Signaling and Enable Persistence of Drug-Adapted BRAF-Mutant Melanoma Cells. Cell Syst 2020; 11:478-494.e9. [PMID: 33113355 DOI: 10.1016/j.cels.2020.10.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [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: 07/23/2019] [Revised: 07/21/2020] [Accepted: 10/03/2020] [Indexed: 02/06/2023]
Abstract
Targeted inhibition of oncogenic pathways can be highly effective in halting the rapid growth of tumors but often leads to the emergence of slowly dividing persister cells, which constitute a reservoir for the selection of drug-resistant clones. In BRAFV600E melanomas, RAF and MEK inhibitors efficiently block oncogenic signaling, but persister cells emerge. Here, we show that persister cells escape drug-induced cell-cycle arrest via brief, sporadic ERK pulses generated by transmembrane receptors and growth factors operating in an autocrine/paracrine manner. Quantitative proteomics and computational modeling show that ERK pulsing is enabled by rewiring of mitogen-activated protein kinase (MAPK) signaling: from an oncogenic BRAFV600E monomer-driven configuration that is drug sensitive to a receptor-driven configuration that involves Ras-GTP and RAF dimers and is highly resistant to RAF and MEK inhibitors. Altogether, this work shows that pulsatile MAPK activation by factors in the microenvironment generates a persistent population of melanoma cells that rewires MAPK signaling to sustain non-genetic drug resistance.
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Affiliation(s)
- Luca Gerosa
- Laboratory of Systems Pharmacology, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Christopher Chidley
- Laboratory of Systems Pharmacology, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Fabian Fröhlich
- Laboratory of Systems Pharmacology, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Gabriela Sanchez
- Laboratory of Systems Pharmacology, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Sang Kyun Lim
- Laboratory of Systems Pharmacology, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Jeremy Muhlich
- Laboratory of Systems Pharmacology, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Jia-Yun Chen
- Laboratory of Systems Pharmacology, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Sreeram Vallabhaneni
- Laboratory of Systems Pharmacology, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Gregory J Baker
- Laboratory of Systems Pharmacology, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Denis Schapiro
- Laboratory of Systems Pharmacology, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Mariya I Atanasova
- Laboratory of Systems Pharmacology, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Lily A Chylek
- Laboratory of Systems Pharmacology, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Tujin Shi
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Lian Yi
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Carrie D Nicora
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Allison Claas
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Thomas S C Ng
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA 02114, USA
| | - Rainer H Kohler
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA 02114, USA
| | - Douglas A Lauffenburger
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA 02114, USA
| | - Miles A Miller
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA 02114, USA
| | - Wei-Jun Qian
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - H Steven Wiley
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Peter K Sorger
- Laboratory of Systems Pharmacology, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA.
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16
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Bafeta A, Bobe J, Clucas J, Gonsalves PP, Gruson-Daniel C, Hudson KL, Klein A, Krishnakumar A, McCollister-Slipp A, Lindner AB, Misevic D, Naslund JA, Nebeker C, Nikolaidis A, Pasquetto I, Sanchez G, Schapira M, Scheininger T, Schoeller F, Sólon Heinsfeld A, Taddei F. Ten simple rules for open human health research. PLoS Comput Biol 2020; 16:e1007846. [PMID: 32881878 PMCID: PMC7470254 DOI: 10.1371/journal.pcbi.1007846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Aïda Bafeta
- Center for Research and Interdisciplinarity (CRI), Université de Paris, INSERM U1284, Paris, France
| | - Jason Bobe
- Institute for Next Generation Healthcare, New York, New York, United States of America
| | - Jon Clucas
- MATTER Lab, Child Mind Institute, New York, New York, United States of America
| | | | - Célya Gruson-Daniel
- COSTECH, Université de Technologie de Compiègne, Compiègne, France; LabCMO, Université du Québec à Montréal, Université Laval, Montreal, Canada
| | - Kathy L. Hudson
- Hudson Works LLC, Washington, District of Columbia, United States of America
| | - Arno Klein
- MATTER Lab, Child Mind Institute, New York, New York, United States of America
| | - Anirudh Krishnakumar
- Center for Research and Interdisciplinarity (CRI), Université de Paris, INSERM U1284, Paris, France
| | | | - Ariel B. Lindner
- Center for Research and Interdisciplinarity (CRI), Université de Paris, INSERM U1284, Paris, France
| | - Dusan Misevic
- Center for Research and Interdisciplinarity (CRI), Université de Paris, INSERM U1284, Paris, France
| | - John A. Naslund
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Camille Nebeker
- Department of Family Medicine and Public Health, School of Medicine, University of California San Diego, San Diego, California, United States of America
| | - Aki Nikolaidis
- Center for the Developing Brain, Child Mind Institute, New York, New York, United States of America
| | - Irene Pasquetto
- Harvard Kennedy School, Harvard University, Cambridge, Massachusetts, United States of America
| | | | - Matthieu Schapira
- Structural Genomics Consortium and Department of Pharmacology & Toxicology, University of Toronto, Toronto, Canada
| | - Tohar Scheininger
- Healthy Brain Network, Child Mind Institute, New York, New York, United States of America
| | - Félix Schoeller
- Center for Research and Interdisciplinarity (CRI), Université de Paris, INSERM U1284, Paris, France
| | - Anibal Sólon Heinsfeld
- Center for the Developing Brain, Child Mind Institute, New York, New York, United States of America
| | - François Taddei
- Center for Research and Interdisciplinarity (CRI), Université de Paris, INSERM U1284, Paris, France
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17
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Iribarren C, Chandra M, Molloi S, Sam D, Sanchez G, Bidgoli FA, Cho HM, Ding H, Lo JC. No Association Between Bone Mineral Density and Breast Arterial Calcification Among Postmenopausal Women. J Endocr Soc 2020; 4:bvz026. [PMID: 32064410 PMCID: PMC7009123 DOI: 10.1210/jendso/bvz026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 11/26/2019] [Indexed: 11/19/2022] Open
Abstract
Context The association between bone mineral density (BMD) and breast arterial calcification (BAC) remains poorly understood and controversial. Objective The objective of this article is to examine the association between BMD and BAC in a large cohort of postmenopausal women undergoing routine mammography. Design A cross-sectional analysis of baseline data from a multiethnic cohort was performed. Setting The setting for this analysis is an integrated health care delivery system in Northern California in the United States. Patients A total of 1273 women age 60 to 79 years (mean age, 67 years) were recruited within 12 months of screening mammography. Main outcome measure A BAC score (mg) was obtained from digital mammograms using a novel densitometry method. BAC presence was defined as a BAC score greater than 0 mg, and severe BAC as a BAC score greater than 20 mg. Results Overall, 53% of women had osteopenia and 21% had osteoporosis. The prevalence of BAC greater than 0 mg was 29%, 30%, and 29% among women with normal BMD, osteopenia, and osteoporosis, respectively (P = 0.98). The prevalence of BAC greater than 20 mg was 5%, 3%, and 5% among women with normal BMD, osteopenia and osteoporosis, respectively (P = .65). The odds ratios (ORs) of BAC greater than 0 mg vs BAC = 0 mg after multivariable adjustment were 1.09 (95% CI, 0.81-1.48; P = .54) for osteopenia and 0.99 (95% CI, 0.69-1.48; P = .98) for osteoporosis. The adjusted ORs for BAC greater than 20 mg vs BAC 20 mg or less were 1.03 (95% CI, 0.52-2.01; P = .93) for osteopenia and 1.89 (95 CI, 0.81-4.47; P = .14) for osteoporosis. Conclusion Our findings do not support an association of either osteopenia or osteoporosis with BAC presence or severity among postmenopausal women.
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Affiliation(s)
| | - Malini Chandra
- Kaiser Permanente Division of Research, Oakland, California
| | - Sabee Molloi
- Department of Radiological Sciences, University of California Irvine School of Medicine, Irvine, California
| | - Danny Sam
- Kaiser Permanente Santa Clara Medical Center, Santa Clara, California
| | | | - Fatemeh Azamian Bidgoli
- Department of Radiological Sciences, University of California Irvine School of Medicine, Irvine, California
| | - Hyo-Min Cho
- Department of Radiological Sciences, University of California Irvine School of Medicine, Irvine, California
| | - Huanjun Ding
- Department of Radiological Sciences, University of California Irvine School of Medicine, Irvine, California
| | - Joan C Lo
- Kaiser Permanente Division of Research, Oakland, California.,Kaiser Permanente Oakland Medical Center, Oakland, California
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18
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Gerosa L, Chidley C, Froehlich F, Sanchez G, Lim SK, Muhlich J, Chen JY, Baker GJ, Schapiro D, Shi T, Yi L, Nicora CD, Qian WJ, Wiley HS, Sorger P. Abstract LB-B09: ERK pulses drive non-genetic resistance in drug-adapted BRAFV600E melanoma cells. Mol Cancer Ther 2019. [DOI: 10.1158/1535-7163.targ-19-lb-b09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Anti-cancer drugs commonly target signal transduction proteins activated by mutation. In patients with BRAFV600E melanoma, small molecule RAF and MEK kinase inhibitors cause dramatic but often transient tumor regression. Emerging evidence suggests that cancer cells adapting by non-genetic mechanisms constitute a reservoir for the development of drug-resistant tumors. Here, we show that few hours after exposure to RAF/MEK inhibitors, BRAFV600E melanomas undergo adaptive changes involving disruption of negative feedback and sporadic pulsatile reactivation of the MAPK pathway, so that MAPK activity is transiently high enough in some cells to drive proliferation. ERK pulses are locally triggered by autocrine/paracrine factors in the local microenvironment so that ERK activity levels are low on average, but transiently high enough in patches of cells to explain the infrequent division characteristic of persister cells. Quantitative proteomics and computational modeling show that pulsatile MAPK reactivation is possible due to the co-existence in cells of two MAPK cascades: one driven by BRAFV600E that is drug-sensitive and a second driven by receptors that is drug-resistant. Paradoxically, this may account both for the frequent emergence of drug resistance and for the tolerability of RAF/MEK therapy in patients.
Citation Format: Luca Gerosa, Christopher Chidley, Fabian Froehlich, Gabriela Sanchez, Sang Kyun Lim, Jeremy Muhlich, Jia-Yun Chen, Gregory J. Baker, Denis Schapiro, Tujin Shi, Lian Yi, Carrie D. Nicora, Wei-Jun Qian, H. Steven Wiley, Peter Sorger. ERK pulses drive non-genetic resistance in drug-adapted BRAFV600E melanoma cells [abstract]. In: Proceedings of the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics; 2019 Oct 26-30; Boston, MA. Philadelphia (PA): AACR; Mol Cancer Ther 2019;18(12 Suppl):Abstract nr LB-B09. doi:10.1158/1535-7163.TARG-19-LB-B09
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Tujin Shi
- 2Pacific Northwest National Laboratory, Richland, WA
| | - Lian Yi
- 2Pacific Northwest National Laboratory, Richland, WA
| | | | - Wei-Jun Qian
- 2Pacific Northwest National Laboratory, Richland, WA
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Mc Loughlin S, Terrasa S, Ljungqvist O, Sanchez G, Garcia Fornari G, Alvarez A. Nausea and vomiting in a colorectal ERAS program: Impact on nutritional recovery and the length of hospital stay. Clin Nutr ESPEN 2019; 34:73-80. [DOI: 10.1016/j.clnesp.2019.08.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/22/2019] [Accepted: 08/26/2019] [Indexed: 02/06/2023]
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20
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Jolivalt CG, Marquez A, Quach D, Navarro Diaz MC, Anaya C, Kifle B, Muttalib N, Sanchez G, Guernsey L, Hefferan M, Smith DR, Fernyhough P, Johe K, Calcutt NA. Amelioration of Both Central and Peripheral Neuropathy in Mouse Models of Type 1 and Type 2 Diabetes by the Neurogenic Molecule NSI-189. Diabetes 2019; 68:2143-2154. [PMID: 31492662 PMCID: PMC6804627 DOI: 10.2337/db19-0271] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 08/26/2019] [Indexed: 02/06/2023]
Abstract
While peripheral neuropathy is the most common complication of long-term diabetes, cognitive deficits associated with encephalopathy and myelopathy also occur. Diabetes is a risk factor for Alzheimer disease (AD) and increases the risk of progression from mild cognitive impairment to AD. The only current recommendation for preventing or slowing the progression of peripheral neuropathy is to maintain close glycemic control, while there is no recommendation for central nervous system disorders. NSI-189 is a new chemical entity that when orally administered promotes neurogenesis in the adult hippocampus, increases hippocampal volume, enhances synaptic plasticity, and reduces cognitive dysfunction. To establish the potential for impact on peripheral neuropathy, we first showed that NSI-189 enhances neurite outgrowth and mitochondrial functions in cultured adult rat primary sensory neurons. Oral delivery of NSI-189 to murine models of type 1 (female) and type 2 (male) diabetes prevented multiple functional and structural indices of small and large fiber peripheral neuropathy, increased hippocampal neurogenesis, synaptic markers and volume, and protected long-term memory. NSI-189 also halted progression of established peripheral and central neuropathy. NSI-189, which is currently in clinical trials for treatment of major depressive disorder, offers the opportunity for the development of a single therapeutic agent against multiple indices of central and peripheral neuropathy.
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Affiliation(s)
- Corinne G Jolivalt
- Department of Pathology, University of California, San Diego, La Jolla, CA
| | - Alexandra Marquez
- Department of Pathology, University of California, San Diego, La Jolla, CA
| | | | | | - Carlos Anaya
- Department of Pathology, University of California, San Diego, La Jolla, CA
| | - Betelhem Kifle
- Department of Pathology, University of California, San Diego, La Jolla, CA
| | - Nabeel Muttalib
- Department of Pathology, University of California, San Diego, La Jolla, CA
| | - Gabriela Sanchez
- Department of Pathology, University of California, San Diego, La Jolla, CA
| | - Lucy Guernsey
- Department of Pathology, University of California, San Diego, La Jolla, CA
| | | | - Darrel R Smith
- St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
| | - Paul Fernyhough
- St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
- Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | - Nigel A Calcutt
- Department of Pathology, University of California, San Diego, La Jolla, CA
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Nuciforo P, Jimenez J, Fasani R, Ruiz F, Sevillano C, Sanchez G, Martinez P, Serres X, Saura C, Elez E, Felip E, Oaknin A, Brana I, Muñoz-Couselo E, Macarulla Mercade T, Alsina Maqueda M, Carles J, Dienstmann R, Tabernero J, Garralda E. Prospective pathological experience with research biopsies in the context of clinical trials at Vall d’Hebron Institute of Oncology. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz268.013] [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: 11/12/2022] Open
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Lo J, Grimsrud C, Ott S, Chandra M, Hui R, Sanchez G, Gonzalez J, Ettinger B. OR03-4 Atypical Femur Fracture Incidence Increases with Duration of Bisphosphonate Exposure. J Endocr Soc 2019. [PMCID: PMC6554828 DOI: 10.1210/js.2019-or03-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND: Dell et al. reported that the incidence of atypical femur fracture (AFF) increased with duration of bisphosphonate (BP) exposure, ranging from 2 to 113 per 100,000 person-years with <2 to 8-10 years (yrs) treatment, respectively (JBMR 27:2544, 2012). These estimates were based on 128 AFF cases (over 95% women) identified in Kaiser Permanente Southern California. This study aims to validate Dell’s findings using female members of a different large integrated healthcare system and using a different method of capturing subjects (women were followed forward from the date of BP initiation and had health plan membership with no BP for 2 yrs prior). METHODS: Women age 45-89 of a large integrated healthcare delivery system who initiated oral BP in 2002-2014 were identified, excluding the following: receipt of intravenous BP, teriparatide or denosumab; skeletal disorder; advanced kidney disease; and metastatic cancer. The total period of subsequent BP exposure (TOTPERIOD) was determined by the time between the first and last prescriptions, inclusive of all treatment gaps. We also calculated the total days covered from the sum of all qualifying prescriptions (DAYSUPPLY). Women were followed for an AFF outcome during the period of BP exposure, censoring at membership termination, death, exclusion criteria met, age 90, end of 12 yr total exposure period, or end of study follow-up (2015). The incidence of AFF (with 95% confidence interval, CI) was calculated per person-years (p-y) exposure in 2-yr intervals, categorized as <2, 2 to <4, 4-<6, 6 to <8, 8 to <10 and 10 to <12 yrs exposure and adjusted for age using 2010 US Census data. RESULTS: Among 94,542 women, the median (interquartile range) TOTPERIOD and DAYSUPPLY of BP was 2.7 (IQR 0.7-5.6) and 1.6 (0.5-3.7) yrs. During follow-up for up to 12 yrs of BP exposure, a total of 85 women with AFF were identified. Mean age at AFF was 74 ± 7 yrs, and median TOTPERIOD was 8.3 yrs (interquartile range 6.5-9.6), with median DAYSUPPLY of 6.5 yrs (IQR 5.0-8.5). For each 2-yr increment, the age-adjusted incidence (95% CI) of AFF was: <2 yrs [n=94,542; 132,367 p-y; AFF incidence 2 (1-5) per 100,000 p-y]; 2 to <4 yrs [n=50,056; 81,823 p-y; AFF incidence 7 (4-12) per 100,000 p-y]; 4 to <6 yrs [n=32,219; 50,164 p-y; AFF incidence 24 (13-41) per 100,000 p-y]; 6 to <8 yrs [n=18,956; 28,858 p-y; AFF incidence 71 (29-158) per 100,000 p-y]; 8 to <10 yrs [n=10,505; 15,171 p-y; AFF incidence 101 (54-182) per 100,000 p-y]; 10 to <12 yrs [n=5132; 7627 p-y; AFF incidence 88 (42-177) per 100,000 p-y]. The incidence of AFF increased substantially with duration of BP exposure, increasing over 20-fold when comparing exposure <4 yrs to 8-12 yrs (4 to 93 per 100,000 p-y). CONCLUSION: The age-adjusted incidence of AFF increases progressively with duration of BP exposure. Overall, our data are strikingly similar to those reported by Dell et al. based on 128 AFF cases identified using a somewhat different approach.
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Affiliation(s)
- Joan Lo
- Kaiser Permanente Northern California, Oakland, CA, United States
| | | | - Susan Ott
- University of Washington, Seattle, WA, United States
| | - Malini Chandra
- Kaiser Permanente Northern California, Oakland, CA, United States
| | - Rita Hui
- Kaiser Permanente Northern California, Oakland, CA, United States
| | - Gabriela Sanchez
- Kaiser Permanente Northern California, Oakland, CA, United States
| | - Joel Gonzalez
- Kaiser Permanente Northern California, Oakland, CA, United States
| | - Bruce Ettinger
- Kaiser Permanente Northern California, Oakland, CA, United States
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Iribarren C, Chandra M, Sanchez G, Sam D, Molloi S, Lo J. MON-515 Lack Of Association Between Bone Mineral Density And Breast Arterial Calcification: The Minerva Study. J Endocr Soc 2019. [PMCID: PMC6550862 DOI: 10.1210/js.2019-mon-515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Background: Prior studies have documented inverse associations of bone mineral density (BMD) with coronary and extra-coronary vascular calcification, indicating a biological interplay between bone and vascular systems. However,the relation between BMD and breast arterial calcification (BAC) remains controversial. This study aims to correlate BMD status with presence and severity of BAC in a large sample of post-menopausal women free of clinical cardiovascular disease (CVD) at baseline. Methodology: We used data from the MultIethNic study of brEast aRterial calcium gradation and cardioVAscular disease (MINERVA), a multiethnic cohort of women aged 60 to 79 years at baseline (10/24/2012-2/13/2015) who were free of symptomatic CVD, all recruited after mammography screening at Kaiser Permanente of Northern California (KPNC). The sample available for analyses with complete data on BMD, BAC and covariates was 1,273 (mean ± SD age=67 ± 4, 52% white, 18% Asian, 15% African-American and 12% Latina). BMD assessments in spine, hip and head of the femur up to 3 years prior to the baseline exam was done with dual-energy X-ray absorptiometry (DXA) as part of routine medical care and participants were categorized into 3 groups: normal, osteopenia and osteoporosis using WHO criteria. A BAC continuous mass score (mg) was obtained from digital mammograms using a validated densitometry method. BAC presence was BAC score > 0 mg, and severe BAC was defined as BAC score > 20 mg. Data was analyzed using the Chi-Square for contingency tables and multivariable logistic regression. Results: Overall, 54% (686/1,273) had osteopenia and 21% (267/1,273) had osteoporosis. The prevalence of BAC > 0 mg did not differ significantly by BMD status (Chi-Square=0.03;2df;p=0.98): it was 30% (97/320) among women with normal BMD, 31% (212/686) among women with osteopenia, and 31% among women with osteoporosis (82/267). Likewise, the prevalence of BAC > 20 mg did not differ significantly by BMD status (Chi-Square=2.4;2df;p=0.65): it was 5% (16/320) among women with normal BMD, 3% (23/686) among women with osteopenia, and 5% among women with osteoporosis (13/267). The odds ratios (ORs) of BAC > 0 vs. BAC=0 mg after adjustment for age, race, education level, BMI, smoking, alcohol consumption, total physical activity score, diabetes, hypertension, calcium supplement use, menopausal hormone therapy, history of breast feeding and parity were 1.09 (95% CI, 0.81-1.47) for osteopenia and 1.05 (95% CI, 0.70-1.56) for osteoporosis. The adjusted OR for BAC > 20 vs BAC ≤20 mg were 0.96 (95%CI, 0.48-1.94) for osteopenia and 1.58 (95 CI, 0.64-3.93) for osteoporosis. Conclusion: Our findings do not support an association of either osteopenia or osteoporosis with BAC presence or severity.
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Affiliation(s)
- Carlos Iribarren
- Kaiser Permanente Division of Research, Oakland, CA, United States
| | - Malini Chandra
- Kaiser Permanente Division of Research, Oakland, CA, United States
| | - Gabriela Sanchez
- Kaiser Permanente Division of Research, Oakland, CA, United States
| | - Danny Sam
- Kaiser Permanente Santa Clara Medical center, Santa Clara, CA, United States
| | - Sabee Molloi
- UC Irvine School of Medicine, Irvine, CA, United States
| | - Joan Lo
- Div of Research, Kaiser Permanente, Oakland, CA, United States
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Lo J, Ettinger B, Chandra M, Sanchez G, Sam D, Vu J, Iribarren C. SAT-536 Vitamin D Status in an Ambulatory Cohort of Women undergoing Screening Mammography. J Endocr Soc 2019. [PMCID: PMC6552251 DOI: 10.1210/js.2019-sat-536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
INTRODUCTION: Controversy exists over possible ethnic differences in 25-OH-vitamin D (25OHD) levels among healthy individuals, such as blacks having lower levels than whites. The extent to which these possible differences reflect physiologic deficiency is unclear. We utilized data from women undergoing routine mammography and measures of mineral metabolism to examine 25OHD levels and its relationship to parathyroid hormone (PTH) levels by race/ethnicity. METHODS: Data were obtained from an observational cohort study examining breast arterial calcification in women aged 60-79 years where laboratory measures also included calcium, PTH, 25OHD, and creatinine to estimate glomerular filtration rate (eGFR). For this study, we identified women without hypercalcemia (Ca >10.3) and free of chronic kidney disease (eGFR<60). Analyses included the distribution of 25OHD level and whether low 25OHD was associated with higher PTH. Sensitivity analyses were conducted excluding those with use of calcium (>3x/week) or vitamin D (>1x/week) supplements because of the potential impact of supplement use on 25OHD level. RESULTS: Among 3544 women (62.2% white, 11.0% black, 10.0% Hispanic, 15.4% Asian, 1.4% other/unknown), 25OHD varied by race/ethnicity, with mean ± SD and median (interquartile range, IQR) values as follows: white 37.5 ± 12.7 and 36 (IQR 30-44); black 29.8 ± 12.7 and 30 (IQR 20-38); Hispanic 32.1 ± 11.5 and 30 (24-39); and Asian 35.0 ± 12.0 and 34 (27-42) ng/mL. The proportion of women with 25OHD <20 ng/mL also varied by race/ethnicity: white (5.4%), black (24.0%), Hispanic (11.6%) and Asian (7.9%). The median PTH level for these same subgroups with low 25OHD level were: white 46 (IQR 34-63), black 62 (46-79), Hispanic 43 (30-61), and Asian 41 (36-59) pg/mL (p<0.01 for black vs each of the other race/ethnicities). When restricted to the 1277 women without regular use of calcium or vitamin D supplements, (57.7% white, 15.1% black, 11.9% Hispanic, 13.5% Asian, 1.8% other/unknown), 25OHD mean ± SD and median (IQR) values were somewhat lower: white 30.5 ± 10.1 and 30 (IQR 24-36); black 24.0 ± 10.8; 23 (IQR 15-31), Hispanic 25.8 ± 9.3 and 25 (19-31); and Asian 27.0 ± 9.5 and 26 (20-33) ng/mL. Among these 1277 women, the proportions with 25OHD <20 ng/mL were: white (13.4%), black (39.4%), Hispanic (25.7%) and Asian (22.7%). The median PTH level for these subgroups with low 25OHD level were: white 45 (IQR 33-61), black 61 (45-81), Hispanic 43 (30-61) and Asian 41 (38-60) pg/mL (p<0.01 for black vs each of the other race/ethnicities). CONCLUSIONS: Compared to white women, black and Hispanic women have about 20% lower 25OHD levels. Compared to white, black women also have significantly higher PTH (about one-third higher) when 25OHD is low. We hypothesize that in black women (with lower 25OHD level), PTH elevation maintains adequate mineral balance and may contribute to their greater skeletal mass.
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Affiliation(s)
- Joan Lo
- Kaiser Permanente Northern California, Oakland, CA, United States
| | - Bruce Ettinger
- Kaiser Permanente Northern California, Oakland, CA, United States
| | - Malini Chandra
- Kaiser Permanente Northern California, Oakland, CA, United States
| | - Gabriela Sanchez
- Kaiser Permanente Northern California, Oakland, CA, United States
| | - Danny Sam
- Kaiser Permanente Northern California, Santa Clara, CA, United States
| | - Joseph Vu
- Kaiser Permanente Northern California, Santa Clara, CA, United States
| | - Carlos Iribarren
- Kaiser Permanente Northern California, Oakland, CA, United States
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Kuang YL, Munoz A, Nalula G, Santostefano KE, Sanghez V, Sanchez G, Terada N, Mattis AN, Iacovino M, Iribarren C, Krauss RM, Medina MW. Evaluation of commonly used ectoderm markers in iPSC trilineage differentiation. Stem Cell Res 2019; 37:101434. [PMID: 30999275 PMCID: PMC6570500 DOI: 10.1016/j.scr.2019.101434] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 03/27/2019] [Accepted: 04/08/2019] [Indexed: 01/08/2023] Open
Abstract
Patient-derived induced pluripotent stem cells (iPSCs) have become a promising resource for exploring genetics of complex diseases, discovering new drugs, and advancing regenerative medicine. Increasingly, laboratories are creating their own banks of iPSCs derived from diverse donors. However, there are not yet standardized guidelines for qualifying these cell lines, i.e., distinguishing between bona fide human iPSCs, somatic cells, and imperfectly reprogrammed cells. Here, we report the establishment of a panel of 30 iPSCs from CD34+ peripheral blood mononuclear cells, of which 10 were further differentiated in vitro into all three germ layers. We characterized these different cell types with commonly used pluripotent and lineage specific markers, and showed that NES, TUBB3, and OTX2 cannot be reliably used as ectoderm differentiation markers. Our work highlights the importance of marker selection in iPSC authentication, and the need for the field to establish definitive standard assays.
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Affiliation(s)
- Yu-Lin Kuang
- Children's Hospital Oakland Research Institute, 5700 Martin Luther King Jr Way, Oakland, CA 94609, USA
| | - Antonio Munoz
- Children's Hospital Oakland Research Institute, 5700 Martin Luther King Jr Way, Oakland, CA 94609, USA
| | - Gilbert Nalula
- Children's Hospital Oakland Research Institute, 5700 Martin Luther King Jr Way, Oakland, CA 94609, USA
| | - Katherine E Santostefano
- University of Florida College of Medicine, 1395 Center Drive Box 100275, Gainesville, FL 32610, USA
| | - Valentina Sanghez
- Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, 1123 W Carson Street, Torrance, CA 90502, USA
| | - Gabriela Sanchez
- Kaiser Permanente Division of Research, 2000 Broadway, Oakland, CA 94612, USA
| | - Naohiro Terada
- University of Florida College of Medicine, 1395 Center Drive Box 100275, Gainesville, FL 32610, USA
| | - Aras N Mattis
- Department of Pathology, University of California San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143, USA
| | - Michelina Iacovino
- Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, 1123 W Carson Street, Torrance, CA 90502, USA
| | - Carlos Iribarren
- Kaiser Permanente Division of Research, 2000 Broadway, Oakland, CA 94612, USA
| | - Ronald M Krauss
- Children's Hospital Oakland Research Institute, 5700 Martin Luther King Jr Way, Oakland, CA 94609, USA
| | - Marisa W Medina
- Children's Hospital Oakland Research Institute, 5700 Martin Luther King Jr Way, Oakland, CA 94609, USA.
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Boccellato F, Woelffling S, Imai-Matsushima A, Sanchez G, Goosmann C, Schmid M, Berger H, Morey P, Denecke C, Ordemann J, Meyer TF. Polarised epithelial monolayers of the gastric mucosa reveal insights into mucosal homeostasis and defence against infection. Gut 2019; 68:400-413. [PMID: 29467166 PMCID: PMC6580761 DOI: 10.1136/gutjnl-2017-314540] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Helicobacter pylori causes life-long colonisation of the gastric mucosa, leading to chronic inflammation with increased risk of gastric cancer. Research on the pathogenesis of this infection would strongly benefit from an authentic human in vitro model. DESIGN Antrum-derived gastric glands from surgery specimens served to establish polarised epithelial monolayers via a transient air-liquid interface culture stage to study cross-talk with H. pylori and the adjacent stroma. RESULTS The resulting 'mucosoid cultures', so named because they recapitulate key characteristics of the gastric mucosa, represent normal stem cell-driven cultures that can be passaged for months. These highly polarised columnar epithelial layers encompass the various gastric antral cell types and secrete mucus at the apical surface. By default, they differentiate towards a foveolar, MUC5AC-producing phenotype, whereas Wnt signalling stimulates proliferation of MUC6-producing cells and preserves stemness-reminiscent of the gland base. Stromal cells from the lamina propria secrete Wnt inhibitors, antagonising stem-cell niche signalling and inducing differentiation. On infection with H. pylori, a strong inflammatory response is induced preferentially in the undifferentiated basal cell phenotype. Infection of cultures for several weeks produces foci of viable bacteria and a persistent inflammatory condition, while the secreted mucus establishes a barrier that only few bacteria manage to overcome. CONCLUSION Gastric mucosoid cultures faithfully reproduce the features of normal human gastric epithelium, enabling new approaches for investigating the interaction of H. pylori with the epithelial surface and the cross-talk with the basolateral stromal compartment. Our observations provide striking insights in the regulatory circuits of inflammation and defence.
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Affiliation(s)
- Francesco Boccellato
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Sarah Woelffling
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Aki Imai-Matsushima
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Gabriela Sanchez
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Christian Goosmann
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Monika Schmid
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Hilmar Berger
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Pau Morey
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Christian Denecke
- Center for Bariatric and Metabolic Surgery, Charité University Medicine, Berlin, Germany
| | - Juergen Ordemann
- Department of Bariatric and Metabolic Surgery, Helios Clinics, Berlin, Germany
| | - Thomas F Meyer
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
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Fruhauf C, Mendoza N, Greenwood-Junkermeier H, Carson J, Sanchez G, Spencer C, Yancura L, Riggs N. “I STOPPED SMOKING.” GRANDPARENT CAREGIVERS’ SELF-CARE PRACTICES FOLLOWING AN INTERVENTION. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.959] [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: 11/13/2022] Open
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Pérez S, Santa Cruz M, Sosa J, Kohan P, Medina M, Klajn D, Papasidero S, Caracciolo J, Pendón G, Giordano F, Pereira D, Alvarez D, Astudillo V, Kerzberg E, Perez Dávila A, Bohr A, Melo F, Lloves N, Mamani M, Hartvig C, Sanchez G, Sacnum M, Chichotky Y, Velazco Zamora J, Benegas M, Rosa J, García M, Raiti L, Cruzat V, Quintana R, Pons-Estel B, Kirmayr K, D'Orazio A, Retamozo C, Romano O, Perez Alamino R, Correa M, Citera G, Rillo O, Zalazar M, Costi A, García M, Gomez G, Maldonado Ficco H. Evaluation of the Educational Needs in Argentine Patients with Rheumatoid Arthritis Using the SpENAT Questionnaire. ACTA ACUST UNITED AC 2018; 16:386-390. [PMID: 30385296 DOI: 10.1016/j.reuma.2018.09.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 06/25/2018] [Accepted: 09/10/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND The SpENAT, a Spanish version of the Educational Needs Assessment Tool, is a self-completed questionnaire that assesses educational needs (ENs) with the purpose of providing tailored and patient-centered information. It consists of 39 questions grouped into the 7 following domains: Pain management, Movement, Feelings, Arthritic process, Treatments, Self-help measures and Support system. OBJECTIVES The objective of the study was to describe the ENs of rheumatoid arthritis (RA) patients using the SpENAT and to determine the main sources of information consulted by these patients. MATERIAL AND METHODS Multicenter, observational, cross-sectional study. We included consecutive patients≥18 years with diagnosis of RA (ACR 87/ACR-EULAR 2010). Sociodemographic data, disease characteristics and clinimetric properties were recorded. All patients completed the SpENAT and were asked about the sources employed to obtain information about their disease. STATISTICAL ANALYSIS Population characteristics were described. ENs were determined as percentages of the highest possible score for each domain. Needs for each domain according to sex, years of education, disease duration, use of biologicals and functional capacity were analyzed by means of ANOVA, and bivariate comparisons were made with Student's t-test and the Bonferroni correction. Correlation between domains was determined with the Spearman correlation coefficient. We compared patients' age by source of information with Student's t-test. RESULTS We included 496 patients from 20 centers across the country. More ENs were observed in the domains of Movement, Feelings and the Arthritic process. Patients with higher educational level (>7 years) reported more ENs in the Arthritic process and Self-help measure domains. A higher functional impairment (HAQ-A≥0.87) was associated with more ENs in every domain. Patients with high activity showed more ENs than those in remission in the domains of Pain management, Movement, Feelings, Treatments and Support system, as well as those with low activity in Self-help measures and Support system domains. All SpENAT domains showed positive correlations among each other (P<.0001), the most important being Pain management/Movement and Treatments/Arthritic process (r≥0.7). The source of information most frequently consulted was the rheumatologist (93.95%); those who made use of Internet were on average younger (P=.0004). CONCLUSION RA patients were very interested about knowing more about their disease. High functional impairment was associated with more ENs. Patients with high disease activity had higher EN levels in almost every domain. The rheumatologist was the main source of information for the patient with RA.
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Affiliation(s)
- Silvana Pérez
- Hospital General de Agudos Dr. E. Tornú, Ciudad Autónoma de Buenos Aires, Argentina.
| | - María Santa Cruz
- Hospital General de Agudos Dr. E. Tornú, Ciudad Autónoma de Buenos Aires, Argentina
| | - Julia Sosa
- Hospital General de Agudos Dr. E. Tornú, Ciudad Autónoma de Buenos Aires, Argentina
| | - Paula Kohan
- Hospital General de Agudos Dr. E. Tornú, Ciudad Autónoma de Buenos Aires, Argentina
| | - María Medina
- Hospital General de Agudos Dr. E. Tornú, Ciudad Autónoma de Buenos Aires, Argentina
| | - Diana Klajn
- Hospital General de Agudos Dr. E. Tornú, Ciudad Autónoma de Buenos Aires, Argentina
| | - Silvia Papasidero
- Hospital General de Agudos Dr. E. Tornú, Ciudad Autónoma de Buenos Aires, Argentina
| | - José Caracciolo
- Hospital General de Agudos Dr. E. Tornú, Ciudad Autónoma de Buenos Aires, Argentina
| | - Gisela Pendón
- Hospital Ricardo Gutiérrez, La Plata, Buenos Aires, Argentina
| | | | - Dora Pereira
- Hospital Ricardo Gutiérrez, La Plata, Buenos Aires, Argentina
| | - Damaris Alvarez
- Hospital Ramos Mejía, Ciudad Autónoma de Buenos Aires, Argentina
| | | | - Eduardo Kerzberg
- Hospital Ramos Mejía, Ciudad Autónoma de Buenos Aires, Argentina
| | - Adriana Perez Dávila
- Hospital de Rehabilitación Manuel Rocca, Ciudad Autónoma de Buenos Aires, Argentina
| | - Analía Bohr
- Hospital de Rehabilitación Manuel Rocca, Ciudad Autónoma de Buenos Aires, Argentina
| | - Fernando Melo
- Hospital Bernardino Rivadavia, Ciudad Autónoma de Buenos Aires, Argentina
| | - Nicolás Lloves
- Hospital Bernardino Rivadavia, Ciudad Autónoma de Buenos Aires, Argentina
| | - Marta Mamani
- Hospital Bernardino Rivadavia, Ciudad Autónoma de Buenos Aires, Argentina
| | - Claudia Hartvig
- Hospital Provincial de Rosario, Rosario, Santa Fe, Argentina
| | | | - Mónica Sacnum
- Hospital Provincial de Rosario, Rosario, Santa Fe, Argentina
| | | | | | - Mariana Benegas
- Sanatorio de la Providencia, Ciudad Autónoma de Buenos Aires, Argentina
| | - Javier Rosa
- Hospital Italiano, Ciudad Autónoma de Buenos Aires, Argentina
| | - María García
- Hospital Italiano, Ciudad Autónoma de Buenos Aires, Argentina
| | - Laura Raiti
- Clínica Bessone, San Miguel, Buenos Aires, Argentina
| | - Vanesa Cruzat
- Clínica Bessone, San Miguel, Buenos Aires, Argentina
| | | | | | - Karin Kirmayr
- Sanatorio San Carlos, Bariloche, Río Negro, Argentina
| | - Andrea D'Orazio
- Hospital Interzonal General De Agudos Dr. José Penna, Bahía Blanca, Buenos Aires, Argentina
| | - Cinthya Retamozo
- Centro de Estudios sobre Derecho y Religión, San Ramón de la Nueva Orán, Salta, Argentina
| | - Olga Romano
- Hospital de Clínicas Pte. Dr. Nicolás Avellaneda, San Miguel de Tucumán, Tucumán, Argentina
| | - Rodolfo Perez Alamino
- Hospital de Clínicas Pte. Dr. Nicolás Avellaneda, San Miguel de Tucumán, Tucumán, Argentina
| | - María Correa
- Instituto de Rehabilitación Psicofísica, Ciudad Autónoma de Buenos Aires, Argentina
| | - Gustavo Citera
- Instituto de Rehabilitación Psicofísica, Ciudad Autónoma de Buenos Aires, Argentina
| | - Oscar Rillo
- Hospital Pirovano, Ciudad Autónoma de Buenos Aires, Argentina
| | - María Zalazar
- Hospital Pirovano, Ciudad Autónoma de Buenos Aires, Argentina
| | - Ana Costi
- Hospital San Martín, La Plata, Buenos Aires, Argentina
| | | | - Graciela Gomez
- Instituto Lanari, Ciudad Autónoma de Buenos Aires, Argentina
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Harper M, Melgar A, Oh J, Nedelkov K, Sanchez G, Roth G, Hristov A. Inclusion of brown midrib dwarf pearl millet silage in the diet of lactating dairy cows. J Dairy Sci 2018. [DOI: 10.3168/jds.2017-14036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Olivier M, Bouaoun L, Torres-Mejia G, Garmendia M, Sanchez G, Porras C, Romieu I, Porter P, Rinaldi S. PO-310 Genomic features of premenopausal breast cancers in latin american women: the PRECAMA study. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.340] [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: 11/04/2022] Open
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Iribarren C, Sanchez G, Husson G, Levine-Hall T, Quesenberry C, Sam DL, Maier J, Chaudhary RS, Patel M, Sadeghi B, Javan H, Cho HM, Ding H, Molloi S. MultIethNic Study of BrEast ARterial Calcium Gradation and CardioVAscular Disease: cohort recruitment and baseline characteristics. Ann Epidemiol 2018; 28:41-47.e12. [DOI: 10.1016/j.annepidem.2017.11.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 11/14/2017] [Accepted: 11/27/2017] [Indexed: 12/18/2022]
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Zamudio CD, Sanchez G, Altschuler A, Grant RW. Influence of Language and Culture in the Primary Care of Spanish-Speaking Latino Adults with Poorly Controlled Diabetes: A Qualitative Study. Ethn Dis 2017; 27:379-386. [PMID: 29225438 DOI: 10.18865/ed.27.4.379] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background We examined the role of language and culture in the interactions between Spanish-speaking Latino patients with poorly controlled diabetes - a fast-growing population in the United States - and their primary care providers. Methods We conducted four focus groups with 36 non-US born Spanish-speaking patients with elevated HbA1c. Participants were insured health plan members with either English-speaking (2 groups) or Spanish-speaking (2 groups) primary care providers. Moderated discussions focused on visit preparation, communication during visit, and role of other care team members. Key themes derived from these discussions were then linked to corresponding Latino cultural constructs. Results Patients had a mean age of 57.9 (±11.2) years and last measured HbA1c was 8.6% (1.5%). Two communication-related themes (reluctance to switch providers and use of intermediaries) and two visit-related themes (provider-driven visit agendas and problem-based visits) emerged from our analyses. These themes reflected the cultural constructs of confianza (trust), familismo (family), respeto (deference), and simpatía (harmonious relationship). Trust in the patient-provider relationship led many participants to remain with English-speaking providers who treated them well. Patients with either language concordant and discordant providers reported reliance on family or other intermediaries to close communication gaps. Deference to physician expertise and authority led to visit expectations that it is the doctor's job to know what to ask and that visits were intended to address specific, often symptom-driven problems. Conclusions Spanish-speaking Latino patients' cultural expectations play an important role in framing their primary care interactions. Recognizing culturally influenced visit expectations is an important step toward improving patient-provider communication.
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Affiliation(s)
- Cindy D Zamudio
- School of Medicine, University of California-Davis, Sacramento, California
| | - Gabriela Sanchez
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Andrea Altschuler
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Richard W Grant
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
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Molins L, Fibla JJ, Izquierdo C, Hernandez J, Sanchez-Lorente D, Montes AG, Sanchez G, Quero F, Cueto A. P-157LUNG CANCER SURGERY IN WOMEN: DIFFERENTIAL CHARACTERISTICS AND POSTOPERATIVE COMPLICATIONS IN A PROSPECTIVE MULTICENTRE STUDY. Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.157] [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: 11/12/2022] Open
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Chiu MH, Garcia SG, Hwang B, Claiche D, Sanchez G, Aldayafleh R, Tsai SM, Santschi PH, Quigg A, Chin WC. Corexit, oil and marine microgels. Mar Pollut Bull 2017; 122:376-378. [PMID: 28684106 DOI: 10.1016/j.marpolbul.2017.06.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 06/25/2017] [Accepted: 06/27/2017] [Indexed: 06/07/2023]
Abstract
Corexit, an EPA-approved chemical dispersant, was intensively used during the 2010 Deepwater Horizon Oil Spill in the Gulf of Mexico. Current studies surrounding Corexit have mainly focused on its toxicity and oil removal capacity. The potential impact of Corexit on the surface ocean carbon dynamics has remained largely unknown. The spontaneous assembly of DOM (dissolved organic matter) polymers into microgels (POM, particulate organic matter) was demonstrated previously that it can influence various critical processes, such as colloidal pump, microbial loops, and nutrition availability in the surface ocean. Here, we report that Corexit alone can significantly inhibit DOM microgel formation and reduce the stability of pre-existing microgels. However, Corexit and oil, Chemically Enhanced Water Accommodated Fraction (CEWAF), could effectively facilitate DOM microgel formation. The unanticipated disturbance of Corexit and oil spills on the critical DOM-POM continuum warrant particular caution and thus should be considered for future application of Corexit during oil spills.
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Affiliation(s)
- Meng-Hsuen Chiu
- School of Engineering, University of California at Merced, Merced, CA, USA
| | - Santiago G Garcia
- School of Engineering, University of California at Merced, Merced, CA, USA
| | - Benjamin Hwang
- School of Engineering, University of California at Merced, Merced, CA, USA
| | - Devon Claiche
- School of Engineering, University of California at Merced, Merced, CA, USA
| | - Gabriela Sanchez
- School of Engineering, University of California at Merced, Merced, CA, USA
| | - Reef Aldayafleh
- School of Engineering, University of California at Merced, Merced, CA, USA
| | - Shih-Ming Tsai
- School of Engineering, University of California at Merced, Merced, CA, USA
| | - Peter H Santschi
- Department of Marine Science, Texas A&M University at Galveston, Galveston, TX, USA
| | - Antonietta Quigg
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, TX, USA
| | - Wei-Chun Chin
- School of Engineering, University of California at Merced, Merced, CA, USA.
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Besada C, Sanchez G, Gil R, Granell A, Salvador A. Volatile metabolite profiling reveals the changes in the volatile compounds of new spontaneously generated loquat cultivars. Food Res Int 2017; 100:234-243. [PMID: 28873683 DOI: 10.1016/j.foodres.2017.06.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 03/27/2017] [Revised: 06/27/2017] [Accepted: 06/27/2017] [Indexed: 11/28/2022]
Abstract
In recent years, the advantageous traits of three new loquat cultivars have drawn the attention of breeders and growers. All three have spontaneously arisen from the 'Algerie' cultivar: the new 'Xirlero' cultivar is a bud mutant of 'Algerie', while 'Amadeo' and 'Raúl' arose as chance seedlings. Following a non-targeted approach based on HS-SPME-GC-MS, the volatile compounds profile of the fruits from the new cultivars were obtained and compared to the original 'Algerie' cultivar. Carboxylic acids clearly dominated the volatile profile of all the loquat cultivars, but esters, aldehydes, ketones and alcohols were also predominant compounds. Interestingly when the bud mutant event did not lead to marked changes in the volatile compounds complement, pronounced changes in the volatile composition of chance seedling-generated cultivars 'Amadeo' and 'Raúl' were observed. 'Amadeo' fruits showed lower levels of 2-methyl butanoic acid and much higher levels of methylhexanoate, methylbutanoate and 2-hydroxy-5-methylacetophenone. The 'Raúl' cultivar also had a distinctive volatile profile characterised by high levels of C6-aldehydes, (E)-2-hexanal, 2-hexenal, (Z)-3-hexenal and hexanal, and several carotenoid-derived volatiles; e.g. 2-pentene-1,4-dione 1-(1,2,2-trimethylcyclopentyl), (S)-dihydroactinidiolide, isodurene, cis-geranyl acetone, β-damascenone, β-ionone, α-ionone and 3,4-dehydro-β-ionone. These changes in volatiles were associated with a more intense flavour in cultivars 'Amadeo' and 'Raúl', according to the sensory evaluation of the flavour intensity carried out by a semi-trained panel. A metabolomic correlation network analysis provided insights as to how volatiles were regulated, and revealed that the compounds modified in 'Amadeo' were uncoupled from the rest of the volatilome, while the volatiles modified in 'Raul' changed according to specific groups. To conclude, this work provides a holistic view of how the loquat volatilome was affected, and this information was integrated with the physical-chemical-sensory attributes to understand the changes that occur in the new cultivars.
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Affiliation(s)
- C Besada
- Instituto Valenciano de Investigaciones Agrarias (IVIA), Carretera Moncada-Náquera, km 4,5, 46113 Valencia, Spain.
| | - G Sanchez
- Instituto Nacional de Tecnología Agropecuaria (INTA), Ruta N°9, Km 170, 2930 San Pedro, Argentina
| | - R Gil
- Instituto Valenciano de Investigaciones Agrarias (IVIA), Carretera Moncada-Náquera, km 4,5, 46113 Valencia, Spain
| | - A Granell
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Ingeniero Fausto Elio, s/n. 46022, Valencia, Spain
| | - A Salvador
- Instituto Valenciano de Investigaciones Agrarias (IVIA), Carretera Moncada-Náquera, km 4,5, 46113 Valencia, Spain
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Ronco AL, De Stefani E, Lasalvia-Galante E, Mendoza B, Vazquez A, Sanchez G. Hot infusions and risk of colorectal cancer in Uruguay: a case-control study. Eur J Clin Nutr 2017; 71:ejcn2017130. [PMID: 28832574 DOI: 10.1038/ejcn.2017.130] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 06/05/2017] [Accepted: 07/15/2017] [Indexed: 12/25/2022]
Abstract
BACKGROUND/OBJECTIVES The evidence of possible roles for the most common hot infusions intake (tea and coffee) in the risk of colorectal cancer (CRC) needs additional data. Regarding 'mate' intake (infusion of Ilex paraguariensis herb), a previous multi-site study reported lack of association for its highest intake on CRC risk. The present study was conducted to better understand the associations between the intake of this and other infusions and CRC risk. SUBJECTS/METHODS Patients (611 CRC incident cases and 2394 controls, all belonging to public hospitals) were interviewed through a questionnaire, including socio-demographic, reproductive and lifestyle variables, and a food-frequency questionnaire of 64 items, analyzing tea, 'mate' and coffee intake (consumer status, daily intake, age at start and at quit). Odds ratios (ORs) and 95% confidence intervals (95% CIs) were calculated through unconditional logistic regression, adjusting for relevant potential confounders. RESULTS Tea and coffee intake displayed significant and inverse associations with CRC risk, mainly among men (OR=0.54, 95% CI 0.38-0.76 for tea and OR=0.59, 95% CI 0.41-0.85 for coffee). Mate intake showed a significant inverse association among women (OR=0.50, 95% CI 0.33-0.77), with a marginal heterogeneity between sexes (P=0.07). Concerning age strata, tea intake displayed inverse associations in all ages, whereas 'mate' and coffee intake showed stronger inverse associations for age ⩾70, suggesting a gradient along time. CONCLUSIONS We found evidence of different significant inverse associations for tea, 'mate' and coffee intake and CRC risk. To our knowledge, this is the first epidemiologic study reporting inverse results on 'mate' intake and CRC, which are explained by a stronger association among women.European Journal of Clinical Nutrition advance online publication, 23 August 2017; doi:10.1038/ejcn.2017.130.
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Affiliation(s)
- A L Ronco
- Unit of Oncology and Radiotherapy, Pereira Rossell Women's Hospital, Montevideo, Uruguay
- IUCLAEH School of Medicine, Maldonado, Uruguay
- Biomedical Sciences Center, University of Montevideo, Montevideo, Uruguay
| | - E De Stefani
- Department of Pathology, Clinical Hospital, UDELAR State University, Montevideo, Uruguay
| | | | - B Mendoza
- Biomedical Sciences Center, University of Montevideo, Montevideo, Uruguay
- Department of Endocrinology and Metabolism, Clinical Hospital, UDELAR State University, Montevideo, Uruguay
| | - A Vazquez
- Biomedical Sciences Center, University of Montevideo, Montevideo, Uruguay
| | - G Sanchez
- Department of Endocrinology and Metabolism, Clinical Hospital, UDELAR State University, Montevideo, Uruguay
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Hiramatsu L, Kay JC, Thompson Z, Singleton JM, Claghorn GC, Albuquerque RL, Ho B, Ho B, Sanchez G, Garland T. Maternal exposure to Western diet affects adult body composition and voluntary wheel running in a genotype-specific manner in mice. Physiol Behav 2017. [PMID: 28625550 DOI: 10.1016/j.physbeh.2017.06.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Some human diseases, including obesity, Type II diabetes, and numerous cancers, are thought to be influenced by environments experienced in early life, including in utero. Maternal diet during the perinatal period may be especially important for adult offspring energy balance, potentially affecting both body composition and physical activity. This effect may be mediated by the genetic background of individuals, including, for example, potential "protective" mechanisms for individuals with inherently high levels of physical activity or high basal metabolic rates. To examine some of the genetic and environmental factors that influence adult activity levels, we used an ongoing selection experiment with 4 replicate lines of mice bred for high voluntary wheel running (HR) and 4 replicate, non-selected control lines (C). Dams (half HR and half C) were fed a "Western" diet (WD, high in fat and sucrose) or a standard diet (SD) from 2weeks prior to mating until their pups could feed on solid food (14days of age). We analyzed dam and litter characteristics from birth to weaning, and offspring mass and physical activity into adulthood. One male offspring from each litter received additional metabolic and behavioral tests. Maternal WD caused pups to eat solid food significantly earlier for C litters, but not for HR litters (interaction of maternal environment and genotype). With dam mass as a covariate, mean pup mass was increased by maternal WD but litter size was unaffected. HR dams had larger litters and tended to have smaller pups than C dams. Home-cage activity of juvenile focal males was increased by maternal WD. Juvenile lean mass, fat mass, and fat percent were also increased by maternal WD, but food consumption (with body mass as a covariate) was unaffected (measured only for focal males). Behavior in an elevated plus maze, often used to indicate anxiety, was unaffected by maternal WD. Maximal aerobic capacity (VO2max) was also unaffected by maternal WD, but HR had higher VO2max than C mice. Adult lean, fat, and total body masses were significantly increased by maternal WD, with greater increase for fat than for lean mass. Overall, no aspect of adult wheel running (total distance, duration, average running speed, maximum speed) or home-cage activity was statistically affected by maternal WD. However, analysis of the 8 individual lines revealed that maternal WD significantly increased wheel running in one of the 4 HR lines. On average, all groups lost fat mass after 6days of voluntary wheel running, but the absolute amount lost was greater for mice with maternal WD resulting in no effect of maternal WD on absolute or % body fat after wheel access. All groups gained lean and total body mass during wheel access, regardless of maternal WD or linetype. Measured after wheel access, circulating leptin, adiponectin, and corticosterone concentrations were unaffected by maternal WD and did not differ between HR and C mice. With body mass as a covariate, heart ventricle mass was increased by maternal WD in both HR and C mice, but fat pads, liver, spleen, and brain masses were unaffected. As found previously, HR mice had larger brains than C mice. Body mass of grand-offspring was unaffected by grand-maternal WD, but grand-offspring wheel running was significantly increased for one HR line and decreased for another HR line by grand-maternal WD. In summary, maternal Western diet had long-lasting and general effects on offspring adult morphology, but effects on adult behavior were limited and contingent on sex and genetic background.
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Affiliation(s)
- Layla Hiramatsu
- Department of Biology, University of California, Riverside, CA 92521, USA
| | - Jarren C Kay
- Department of Biology, University of California, Riverside, CA 92521, USA
| | - Zoe Thompson
- Neuroscience Graduate Program, University of California, Riverside, CA 92521, USA
| | | | - Gerald C Claghorn
- Department of Biology, University of California, Riverside, CA 92521, USA
| | | | - Brittany Ho
- Department of Biology, University of California, Riverside, CA 92521, USA
| | - Brett Ho
- Department of Biology, University of California, Riverside, CA 92521, USA
| | - Gabriela Sanchez
- Department of Biology, University of California, Riverside, CA 92521, USA
| | - Theodore Garland
- Department of Biology, University of California, Riverside, CA 92521, USA.
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Grant RW, Altschuler A, Uratsu CS, Sanchez G, Schmittdiel JA, Adams AS, Heisler M. Primary care visit preparation and communication for patients with poorly controlled diabetes: A qualitative study of patients and physicians. Prim Care Diabetes 2017; 11:148-153. [PMID: 27916628 PMCID: PMC5340584 DOI: 10.1016/j.pcd.2016.11.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 11/09/2016] [Accepted: 11/16/2016] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The purpose of this study was to examine how patients with diabetes and their primary care physicians identify and discuss visit priorities prior to and during visits. METHODS We conducted a qualitative study involving patients with diabetes (4 focus groups, n=29) and primary care physicians (6 provider practice meeting discussions, n=67). RESULTS Four key themes related to prioritization were identified: 1) the value of identifying visit priorities before the visit; 2) challenges to negotiating priorities during the time-limited visit; 3) the importance of "non-medical" priorities; and 4) the need for strategies to help patients prepare for visits. Both patients and physicians felt that identifying a concise list of key priorities in advance of the visit could help establish collaborative visit agendas and treatment plans. CONCLUSIONS Identifying and communicating mutually agreed upon priorities for discussion is a key challenge for time-limited primary care visits. PRACTICE IMPLICATIONS Communication between primary care physicians and their patients with diabetes could be improved by strategies that help patients identify their top visit priorities before the visit.
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Affiliation(s)
| | - Andrea Altschuler
- Division of Research, Kaiser Permanente Northern California, Oakland, USA
| | - Connie Si Uratsu
- Division of Research, Kaiser Permanente Northern California, Oakland, USA
| | - Gabriela Sanchez
- Division of Research, Kaiser Permanente Northern California, Oakland, USA
| | | | - Alyce Sophia Adams
- Division of Research, Kaiser Permanente Northern California, Oakland, USA
| | - Michele Heisler
- University of Michigan Department of Internal Medicine, Ann Arbor, USA
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Abstract
In COPD, body composition studies have focused primarily on low BMI. We examined obesity (BMI ≥ 30 kg/m(2)) as a risk factor for poor function and longitudinal functional decline. Data from a longitudinal cohort of adults with COPD (n = 1096) and an age- and sex-matched comparison group collected in two in-person visits ∼49 months apart were analyzed. Two measures of functioning were examined: six-minute walk distance (6MWD) and Short Physical Performance Battery (SPPB). Multivariate regression analyses examined relationships of obesity with functioning. Secondary analyses stratified by GOLD classification (GOLD-0/1, GOLD-2, GOLD-3/4). Obesity (53% of COPD cohort) was associated cross-sectionally with 6MWD and SPPB in COPD, and only with 6MWD in the comparison group. Obesity predicted significant functional decline in 6MWD for individuals with COPD (odds ratio (OR) for decline [95% CI] 1.8 [1.1, 2.9]), but not the comparison group. Secondary analyses revealed that the risk of decline was significant only in those with more severe COPD (GOLD 3/4, OR = 2.3 [1.0, 5.4]). Obesity was highly prevalent and was associated with poor function concurrently and with subsequent decline in 6MWD in COPD. Obesity in COPD should be considered a risk not only for more co-morbidities and greater health care use, but also for functional decline.
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Affiliation(s)
- Patricia Katz
- Department of Medicine, University of California, San Francisco, CA, USA
| | | | | | - Paul D. Blanc
- Department of Medicine, University of California, San Francisco, CA, USA
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Albuquerque RL, Sanchez G, Garland T. Relationship between Maximal Oxygen Consumption () and Home Range Area in Mammals. Physiol Biochem Zool 2015; 88:660-7. [DOI: 10.1086/682680] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ugarte F, Sousae R, Cinquin B, Martin EW, Krietsch J, Sanchez G, Inman M, Tsang H, Warr M, Passegué E, Larabell CA, Forsberg EC. Progressive Chromatin Condensation and H3K9 Methylation Regulate the Differentiation of Embryonic and Hematopoietic Stem Cells. Stem Cell Reports 2015; 5:728-740. [PMID: 26489895 PMCID: PMC4649257 DOI: 10.1016/j.stemcr.2015.09.009] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 09/10/2015] [Accepted: 09/11/2015] [Indexed: 01/09/2023] Open
Abstract
Epigenetic regulation serves as the basis for stem cell differentiation into distinct cell types, but it is unclear how global epigenetic changes are regulated during this process. Here, we tested the hypothesis that global chromatin organization affects the lineage potential of stem cells and that manipulation of chromatin dynamics influences stem cell function. Using nuclease sensitivity assays, we found a progressive decrease in chromatin digestion among pluripotent embryonic stem cells (ESCs), multipotent hematopoietic stem cells (HSCs), and mature hematopoietic cells. Quantitative high-resolution microscopy revealed that ESCs contain significantly more euchromatin than HSCs, with a further reduction in mature cells. Increased cellular maturation also led to heterochromatin localization to the nuclear periphery. Functionally, prevention of heterochromatin formation by inhibition of the histone methyltransferase G9A resulted in delayed HSC differentiation. Our results demonstrate global chromatin rearrangements during stem cell differentiation and that heterochromatin formation by H3K9 methylation regulates HSC differentiation.
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Affiliation(s)
- Fernando Ugarte
- Institute for the Biology of Stem Cells, Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Rebekah Sousae
- Institute for the Biology of Stem Cells, Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Bertrand Cinquin
- National Center for X-ray Tomography, UCSF, San Francisco, CA 94143, USA; Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Eric W Martin
- Institute for the Biology of Stem Cells, Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Jana Krietsch
- Institute for the Biology of Stem Cells, Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Gabriela Sanchez
- Institute for the Biology of Stem Cells, Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Margaux Inman
- Institute for the Biology of Stem Cells, Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Herman Tsang
- Institute for the Biology of Stem Cells, Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Matthew Warr
- The Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Medicine Department, Hem/Onc Division, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Emmanuelle Passegué
- The Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Medicine Department, Hem/Onc Division, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Carolyn A Larabell
- National Center for X-ray Tomography, UCSF, San Francisco, CA 94143, USA; Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - E Camilla Forsberg
- Institute for the Biology of Stem Cells, Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA.
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Torres L, Sanchez G, Garcia M. P-327 Biologic Therapy in the management of locally advanced rectal cancer, experience of the National Medical Center November 20, Mexico City. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.323] [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: 11/13/2022] Open
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Cubillo A, Álvarez R, Rodriguez-Pascual J, Muñoz M, Pond G, Perea S, Sanchez G, Martin M, Garralda E, De Vicente E, Quijano Y, Hidalgo M. Angiogenic Switch As Predictor of Response to Chemotherapy+ Bevacizumab in Patients with Metastatic Colorectal Cancer. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu333.33] [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: 11/13/2022] Open
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Xie J, Butler S, Sanchez G, Mateos M. Male killing Spiroplasma protects Drosophila melanogaster against two parasitoid wasps. Heredity (Edinb) 2013; 112:399-408. [PMID: 24281548 DOI: 10.1038/hdy.2013.118] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 10/01/2013] [Accepted: 10/02/2013] [Indexed: 11/09/2022] Open
Abstract
Maternally transmitted associations between endosymbiotic bacteria and insects are diverse and widespread in nature. Owing to imperfect vertical transmission, many heritable microbes have evolved compensational mechanisms to enhance their persistence in host lineages, such as manipulating host reproduction and conferring fitness benefits to host. Symbiont-mediated defense against natural enemies of hosts is increasingly recognized as an important mechanism by which endosymbionts enhance host fitness. Members of the genus Spiroplasma associated with distantly related Drosophila hosts are known to engage in either reproductive parasitism (i.e., male killing) or defense against natural enemies (the parasitic wasp Leptopilina heterotoma and a nematode). A male-killing strain of Spiroplasma (strain Melanogaster Sex Ratio Organism (MSRO)) co-occurs with Wolbachia (strain wMel) in certain wild populations of the model organism Drosophila melanogaster. We examined the effects of Spiroplasma MSRO and Wolbachia wMel on Drosophila survival against parasitism by two common wasps, Leptopilina heterotoma and Leptopilina boulardi, that differ in their host ranges and host evasion strategies. The results indicate that Spiroplasma MSRO prevents successful development of both wasps, and confers a small, albeit significant, increase in larva-to-adult survival of flies subjected to wasp attacks. We modeled the conditions under which defense can contribute to Spiroplasma persistence. Wolbachia also confers a weak, but significant, survival advantage to flies attacked by L. heterotoma. The host protective effects exhibited by Spiroplasma and Wolbachia are additive and may provide the conditions for such cotransmitted symbionts to become mutualists. Occurrence of Spiroplasma-mediated protection against distinct parasitoids in divergent Drosophila hosts suggests a general protection mechanism.
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Affiliation(s)
- J Xie
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, USA
| | - S Butler
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, USA
| | - G Sanchez
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, USA
| | - M Mateos
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, USA
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Martinez EA, Sanchez G, Lopez C, Baena A, Uribe M, Giraldo G, Quintero K. Human papillomavirus types in cases of squamous cell carcinoma of head and neck of colombia. Int J Oral Maxillofac Surg 2013. [DOI: 10.1016/j.ijom.2013.07.482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Barrera GJ, Sanchez G, Gonzalez JE. Trefoil factor 3 isolated from human breast milk downregulates cytokines (IL8 and IL6) and promotes human beta defensin (hBD2 and hBD4) expression in intestinal epithelial cells HT-29. Bosn J Basic Med Sci 2013. [PMID: 23198942 DOI: 10.17305/bjbms.2012.2448] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Trefoil factors (TFF) are secretory products of mucin producing cells. They play a key role in the maintenance of the surface integrity of oral mucosa and enhance healing of the gastrointestinal mucosa by a process called restitution. TFF comprises the gastric peptides (TFF1), spasmolytic peptide (TFF2), and the intestinal trefoil factor (TFF3). They have an important and necessary role in epithelial restitution within the gastrointestinal tract. Significant amounts of TFF are present in human milk. This study aimed to determine a possible correlation between TFF3 isolated from human breast milk and levels of cytokines (IL8 and IL6) and defensins (hBD2 and hBD4) in intestinal epithelial cells HT-29 treated with trefoil. Samples of human milk were collected within 2-4 weeks postpartum from healthy human mothers (18-30-years-old) by manual breast massage, and TFF3 was purified by ammonium sulfate precipitation, isoelectric precipitation, DEAE-chromatography, and gel filtration. In this work we measured the concentrations and mRNA levels of cytokines and defensins by immunoassay (ELISA) and semiquantitative RT-PCR technique, respectively. Also we measured the peroxidase activity. We present the first evidence of human milk TFF3 purification. Here we show that the presence of TFF3 isolated from milk strongly correlates with downregulation of IL8 and IL6 in human intestinal epithelial cells. On the other hand, TFF3 activated the epithelial cells in culture to produce beta defensins 2 (hBD2) and beta defensins 4 (hBD4). These findings suggest that TFF can activate intestinal epithelial cells and could actively participate in the immune system of breastfed babies by inducing the production of peptides related to innate defence, such as defensins.
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Affiliation(s)
- Girolamo Jose Barrera
- Laboratorio de Biotecnologia Aplicada L.B.A., Av. Don Julio Centeno, CC metro Plaza, M17-M18, San Diego, Edo. Carabobo, Venezuela., Postal Number 2001.
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Martínez-Abad A, Sanchez G, Lagaron JM, Ocio MJ. Influence of speciation in the release profiles and antimicrobial performance of electrospun ethylene vinyl alcohol copolymer (EVOH) fibers containing ionic silver ions and silver nanoparticles. Colloid Polym Sci 2012. [DOI: 10.1007/s00396-012-2870-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Campos HP, Saldias M, Sanchez G, Martucci P, Acosta M, Faccio R, Suescun L, Romero M, Mombru A. 7. An approach to molecular characteristic of collagen mesh extracellular matrix in processed tissue banking, by diffractive techniques. Cryobiology 2012. [DOI: 10.1016/j.cryobiol.2012.07.008] [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: 11/25/2022]
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Sanchez G, Alegría M, Pesce D, Alcántara R. Localización de las proteínas específicas del cemento radicular CEMP1 y CAP en células neoplásicas. Joralres 2012. [DOI: 10.17126/joralres.2012.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Singer JP, Katz PP, Iribarren C, Omachi TA, Sanchez G, Yelin EH, Cisternas MG, Blanc PD. Both pulmonary and extra-pulmonary factors predict the development of disability in chronic obstructive pulmonary disease. ACTA ACUST UNITED AC 2012; 85:375-83. [PMID: 22688324 DOI: 10.1159/000338110] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Accepted: 02/28/2012] [Indexed: 11/19/2022]
Abstract
BACKGROUND Although chronic obstructive pulmonary disease (COPD) is a major cause of disability worldwide, its determinants remain poorly defined. OBJECTIVE We hypothesized that both pulmonary and extra-pulmonary factors would predict prospective disablement across a hierarchy of activities in persons with COPD. METHODS Six hundred and nine participants were studied at baseline (T0) and 2.5 years later (T1). The Valued Life Activities (VLA) scale quantified disability (10-point scale: 0 = no difficulty and 10 = unable to perform), defining disability as any activity newly rated 'unable to perform' at T1. Predictors included pulmonary (lung function, 6-minute walk distance and COPD severity score) and extra-pulmonary (quadriceps strength and lower extremity function) factors. Prospective disability risk was tested by separate logistic regression models for each predictor (baseline value and its change, T0-T1; odds ratios were scaled at 1 standard deviation per factor. Incident disability across a hierarchy of obligatory, committed and discretionary VLA subscales was compared. RESULTS Subjects manifested a 40% or greater increased odds of developing disability for each predictor (baseline and change over time). Disability in discretionary activities developed at a rate 2.2-times higher than observed in committed activities, which was in turn 2.5-times higher than the rate observed in obligatory activities (p < 0.05 for each level). CONCLUSIONS Disability is common in COPD. Both pulmonary and extra-pulmonary factors are important in predicting its development.
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Affiliation(s)
- Jonathan P Singer
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, Department of Medicine, University of California, San Francisco, CA 94143-0111, USA.
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