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  1. Article ; Online: rxCOV is a quantitative metric for assessing immunoassay analyte fidelity.

    Brand, Rhonda M / Pitlor, Danielle / Metter, E Jeffrey / Dudley, Beth / Karloski, Eve / Zyhowski, Ashley / Brand, Randall E / Uttam, Shikhar

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 88

    Abstract: Immunoassay based bioanalytical measurements are widely used in a variety of biomedical research and clinical settings. In these settings they are assumed to faithfully represent the experimental conditions being tested and the sample groups being ... ...

    Abstract Immunoassay based bioanalytical measurements are widely used in a variety of biomedical research and clinical settings. In these settings they are assumed to faithfully represent the experimental conditions being tested and the sample groups being compared. Although significant technical advances have been made in improving sensitivity and quality of the measurements, currently no metrics exist that objectively quantify the fidelity of the measured analytes with respect to noise associated with the specific assay. Here we introduce ratio of cross-coefficient-of-variation (rxCOV), a fidelity metric for objectively assessing immunoassay analyte measurement quality when comparing its differential expression between different sample groups or experimental conditions. We derive the metric from first principles and establish its feasibility and applicability using simulated and experimental data. We show that rxCOV assesses fidelity independent of statistical significance, and importantly, identifies when latter is meaningful. We also discuss its importance in the context of averaging experimental replicates for increasing signal to noise ratio. Finally, we demonstrate its application in a Lynch Syndrome case study. We conclude by discussing its applicability to multiplexed immunoassays, other biosensing assays, and to paired and unpaired data. We anticipate rxCOV to be adopted as a simple and easy-to-use fidelity metric for performing robust and reproducible biomedical research.
    MeSH term(s) Immunoassay/methods ; Signal-To-Noise Ratio
    Language English
    Publishing date 2023-01-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-022-27309-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Mutation-specific Mismatch Repair-deficient Benign Endometrial Glands in Endometrial Biopsies and Curettings Are a Biomarker of Lynch Syndrome and Associate With Endometrial Carcinoma Development.

    Hegazy, Shaymaa / Brand, Randall E / Dudley, Beth / Karloski, Eve / Lesnock, Jamie L / Elishaev, Esther / Pai, Reetesh K

    The American journal of surgical pathology

    2023  Volume 47, Issue 7, Page(s) 835–843

    Abstract: Endometrial carcinoma is the most common extraintestinal cancer in Lynch syndrome (LS). Recent studies have demonstrated mismatch repair (MMR) deficiency can be detected in benign endometrial glands in LS. We performed MMR immunohistochemistry in benign ... ...

    Abstract Endometrial carcinoma is the most common extraintestinal cancer in Lynch syndrome (LS). Recent studies have demonstrated mismatch repair (MMR) deficiency can be detected in benign endometrial glands in LS. We performed MMR immunohistochemistry in benign endometrium from endometrial biopsies and curettings (EMCs) from a study group of 34 confirmed LS patients and a control group of 38 patients without LS who subsequently developed sporadic MLH1-deficient or MMR-proficient endometrial carcinoma. MMR-deficient benign glands were only identified in patients with LS (19/34, 56%) and were not identified in any control group patient (0/38, 0%) ( P < 0.001). MMR-deficient benign glands were identified as large, contiguous groups in 18 of 19 cases (95%). MMR-deficient benign glands were identified in patients with germline pathogenic variants in MLH1 (6/8, 75%), MSH6 (7/10, 70%), and MSH2 (6/11, 55%) but not in patients with variants in PMS2 (0/4). MMR-deficient benign glands were seen in all EMC samples (100%) but in only 46% of endometrial biopsy samples ( P =0.02). Patients with MMR-deficient benign glands were significantly more likely to have endometrial carcinoma (53%) compared with LS patients with only MMR-proficient glands (13%) ( P =0.03). In conclusion, we demonstrated that MMR-deficient benign endometrial glands are frequently identified in EMB/EMC in women with LS and are a specific marker for LS. Women with LS with MMR-deficient benign glands were more likely to have endometrial carcinoma suggesting that MMR-deficient benign glands may be a biomarker of increased risk of endometrial carcinoma development in LS.
    MeSH term(s) Humans ; Female ; Colorectal Neoplasms, Hereditary Nonpolyposis/genetics ; Colorectal Neoplasms, Hereditary Nonpolyposis/pathology ; DNA Mismatch Repair ; Biomarkers, Tumor/genetics ; Biomarkers, Tumor/analysis ; MutL Protein Homolog 1/genetics ; MutL Protein Homolog 1/metabolism ; Mismatch Repair Endonuclease PMS2/genetics ; Mismatch Repair Endonuclease PMS2/metabolism ; Endometrial Neoplasms/genetics ; Endometrial Neoplasms/pathology ; Germ-Line Mutation ; Endometrium/pathology ; Biopsy ; Microsatellite Instability
    Chemical Substances Biomarkers, Tumor ; MutL Protein Homolog 1 (EC 3.6.1.3) ; Mismatch Repair Endonuclease PMS2 (EC 3.6.1.3)
    Language English
    Publishing date 2023-05-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 752964-8
    ISSN 1532-0979 ; 0147-5185
    ISSN (online) 1532-0979
    ISSN 0147-5185
    DOI 10.1097/PAS.0000000000002061
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Immune Microenvironment Profiling of Normal Appearing Colorectal Mucosa Biopsied Over Repeat Patient Visits Reproduciably Separates Lynch Syndrome Patients Based on Their History of Colon Cancer.

    Brand, Rhonda M / Dudley, Beth / Karloski, Eve / Zyhowski, Ashley / Raphael, Rebecca / Pitlor, Danielle / Metter, E Jeffrey / Pai, Reet / Lee, Kenneth / Brand, Randall E / Uttam, Shikhar

    medRxiv : the preprint server for health sciences

    2023  

    Abstract: Introduction: Lynch syndrome (LS) is the most common hereditary cause of colorectal cancer (CRC), increasing lifetime risk of CRC by up to 70%. Despite this higher lifetime risk, disease penetrance in LS patients is highly variable and most LS patients ... ...

    Abstract Introduction: Lynch syndrome (LS) is the most common hereditary cause of colorectal cancer (CRC), increasing lifetime risk of CRC by up to 70%. Despite this higher lifetime risk, disease penetrance in LS patients is highly variable and most LS patients undergoing CRC surveillance will not develop CRC. Therefore, biomarkers that can correctly and consistently predict CRC risk in LS patients are needed to both optimize LS patient surveillance and help identify better prevention strategies that reduce risk of CRC development in the subset of high-risk LS patients.
    Methods: Normal-appearing colorectal tissue biopsies were obtained during repeat surveillance colonoscopies of LS patients with and without a history of CRC, healthy controls (HC), and patients with a history of sporadic CRC. Biopsies were cultured in an
    Results: Our study demonstrated that cytokine based local immune microenvironment profiling was reproducible over repeat visits and sensitive to patient LS-status and CRC history. Furthermore, we identified sets of biomarkers whose differential expression was predictive of LS-status in patients when compared to sporadic CRC patients and in identifying those LS patients with or without a history of CRC. Enrichment analysis based on these biomarkers revealed an LS and CRC status dependent constitutive inflammatory state of the normal appearing colonic mucosa.
    Discussion: This prospective pilot study demonstrated that immune profiling of normal appearing colonic mucosa discriminates LS patients with a prior history of CRC from those without it, as well as patients with a history of sporadic CRC from HC. Importantly, it suggests existence of immune signatures specific to LS-status and CRC history. We anticipate that our findings have the potential to assess CRC risk in individuals with LS and help in preemptively mitigating it by optimizing surveillance and identifying candidate prevention targets. Further studies are required to validate our findings in an independent cohort of LS patients over multiple visits.
    Language English
    Publishing date 2023-03-06
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.03.03.23286594
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Immune microenvironment profiling of normal appearing colorectal mucosa biopsied over repeat patient visits reproducibly separates lynch syndrome patients based on their history of colon cancer.

    Brand, Rhonda M / Dudley, Beth / Karloski, Eve / Zyhowski, Ashley / Raphael, Rebecca / Pitlor, Danielle / Metter, E Jeffrey / Pai, Reet / Lee, Kenneth / Brand, Randall E / Uttam, Shikhar

    Frontiers in oncology

    2023  Volume 13, Page(s) 1174831

    Abstract: Introduction: Lynch syndrome (LS) is the most common hereditary cause of colorectal cancer (CRC), increasing lifetime risk of CRC by up to 70%. Despite this higher lifetime risk, disease penetrance in LS patients is highly variable and most LS patients ... ...

    Abstract Introduction: Lynch syndrome (LS) is the most common hereditary cause of colorectal cancer (CRC), increasing lifetime risk of CRC by up to 70%. Despite this higher lifetime risk, disease penetrance in LS patients is highly variable and most LS patients undergoing CRC surveillance will not develop CRC. Therefore, biomarkers that can correctly and consistently predict CRC risk in LS patients are needed to both optimize LS patient surveillance and help identify better prevention strategies that reduce risk of CRC development in the subset of high-risk LS patients.
    Methods: Normal-appearing colorectal tissue biopsies were obtained during repeat surveillance colonoscopies of LS patients with and without a history of CRC, healthy controls (HC), and patients with a history of sporadic CRC. Biopsies were cultured in an
    Results: Our study demonstrated that cytokine based local immune microenvironment profiling was reproducible over repeat visits and sensitive to patient LS-status and CRC history. Furthermore, we identified sets of cytokines whose differential expression was predictive of LS-status in patients when compared to sporadic CRC patients and in identifying those LS patients with or without a history of CRC. Enrichment analysis based on these biomarkers revealed an LS and CRC status dependent constitutive inflammatory state of the normal appearing colonic mucosa.
    Discussion: This prospective pilot study demonstrated that immune profiling of normal appearing colonic mucosa discriminates LS patients with a prior history of CRC from those without it, as well as patients with a history of sporadic CRC from HC. Importantly, it suggests the existence of immune signatures specific to LS-status and CRC history. We anticipate that our findings have the potential to assess CRC risk in individuals with LS and help in preemptively mitigating it by optimizing surveillance and identifying candidate prevention targets. Further studies are required to validate our findings in an independent cohort of LS patients over multiple visits.
    Language English
    Publishing date 2023-08-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2649216-7
    ISSN 2234-943X
    ISSN 2234-943X
    DOI 10.3389/fonc.2023.1174831
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: DNA mismatch repair-deficient non-neoplastic endometrial glands are common in Lynch syndrome patients and are present at a higher density than in the colon.

    Hegazy, Shaymaa / Brand, Randall E / Dudley, Beth / Karloski, Eve / Bhargava, Rohit / Elishaev, Esther / Pai, Reetesh K

    Histopathology

    2021  Volume 79, Issue 4, Page(s) 573–583

    Abstract: Aims: The hallmark of Lynch syndrome (LS) is DNA mismatch repair protein (MMR) deficiency. Recently, MMR deficiency in non-neoplastic colonic crypts has been identified as a novel indicator of LS. We aimed to determine whether MMR-deficient non- ... ...

    Abstract Aims: The hallmark of Lynch syndrome (LS) is DNA mismatch repair protein (MMR) deficiency. Recently, MMR deficiency in non-neoplastic colonic crypts has been identified as a novel indicator of LS. We aimed to determine whether MMR-deficient non-neoplastic endometrial glands can distinguish patients with and without LS, and to compare the level of MMR deficiency in the normal endometrium and colon in LS patients.
    Methods and results: We evaluated the immunohistochemical expression of MMR proteins in the normal endometrial mucosa from 64 patients, including 34 patients with confirmed LS (17 with endometrial cancer and 17 without cancer), 30 patients with endometrial cancer without LS (10 with tumours with MLH1 promoter hypermethylation and 20 with MMR-proficient tumours), and in the normal colonic mucosa from 30 LS patients. MMR-deficient non-neoplastic endometrial glands were identified in 47% of LS patients and in no patients without LS (P < 0.001). MMR-deficient non-neoplastic glands were more often identified in LS patients with endometrial cancer (65%) than in those without endometrial cancer (29%) (P = 0.04). In contrast to what was seen in the normal colon, MMR-deficient glands in the normal endometrium were seen as large, contiguous groups, ranging in number from two to 101 (87% versus 45%, P = 0.02). MMR-deficient glands were identified at a higher density in the endometrium than in the colon in LS patients (median number of MMR-deficient glands, 22 versus two, P = 0.02).
    Conclusions: Our findings indicate that MMR-deficient non-neoplastic endometrial glands constitute an indicator of LS, and that MMR-deficient glands in the endometrium are present in a pattern of contiguous large groups.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Colon/pathology ; Colorectal Neoplasms, Hereditary Nonpolyposis/diagnosis ; Colorectal Neoplasms, Hereditary Nonpolyposis/pathology ; DNA Mismatch Repair ; DNA Repair Enzymes/analysis ; Endometrium/pathology ; Female ; Humans ; Middle Aged ; Mucous Membrane/pathology ; Retrospective Studies
    Chemical Substances DNA Repair Enzymes (EC 6.5.1.-)
    Language English
    Publishing date 2021-06-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 131914-0
    ISSN 1365-2559 ; 0309-0167
    ISSN (online) 1365-2559
    ISSN 0309-0167
    DOI 10.1111/his.14386
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  6. Article ; Online: Detection of DNA mismatch repair deficient crypts in random colonoscopic biopsies identifies Lynch syndrome patients.

    Brand, Randall E / Dudley, Beth / Karloski, Eve / Das, Rohit / Fuhrer, Kimberly / Pai, Rish K / Pai, Reetesh K

    Familial cancer

    2020  Volume 19, Issue 2, Page(s) 169–175

    Abstract: The hallmark of Lynch syndrome (LS)-associated neoplasia is DNA mismatch repair protein (MMR) deficiency. Recent studies have demonstrated that histologically normal colonic crypts in patients with LS can exhibit deficient MMR expression. The aim of this ...

    Abstract The hallmark of Lynch syndrome (LS)-associated neoplasia is DNA mismatch repair protein (MMR) deficiency. Recent studies have demonstrated that histologically normal colonic crypts in patients with LS can exhibit deficient MMR expression. The aim of this study was to determine the feasibility of detecting MMR deficient crypts in random colonoscopic biopsies of normal mucosa in patients with and without LS. Forty-nine patients, including 33 with LS, 12 without LS, and 4 with germline MMR gene variants of uncertain significance (VUS), were prospectively and blindly evaluated by immunohistochemistry for MMR deficient crypts within random normal-appearing mucosal biopsies obtained during surveillance colonoscopy. MMR deficient crypts were identified in 70% (23/33) of patients with LS and in no patients without LS (0/12) (p < 0.001). MMR deficient crypts were identified with nearly equal frequency in both LS patients with and without a cancer history and were associated with germline variants in all four MMR genes and EPCAM. MMR deficient crypts were also identified in LS patients with a history of non-colorectal cancer types, including patients with endometrial cancer, skin sebaceous neoplasms, and renal cancer. Two of the four patients with germline MMR gene VUS had MMR deficient crypts. In conclusion, MMR deficient crypts are a specific biomarker of LS and can be identified in random normal mucosal biopsies in LS patients. Evaluation for MMR deficient crypts in colonoscopic biopsies of normal mucosa can help identify LS patients.
    MeSH term(s) Adult ; Aged ; Biopsy ; Colonoscopy ; Colorectal Neoplasms, Hereditary Nonpolyposis/diagnosis ; Colorectal Neoplasms, Hereditary Nonpolyposis/genetics ; Colorectal Neoplasms, Hereditary Nonpolyposis/pathology ; DNA Mismatch Repair ; DNA-Binding Proteins/deficiency ; DNA-Binding Proteins/genetics ; Epithelial Cell Adhesion Molecule/genetics ; Feasibility Studies ; Female ; Germ-Line Mutation ; Humans ; Intestinal Mucosa/pathology ; Male ; Middle Aged ; Mismatch Repair Endonuclease PMS2/genetics ; MutL Protein Homolog 1/genetics ; MutS Homolog 2 Protein/genetics ; Prospective Studies
    Chemical Substances DNA-Binding Proteins ; EPCAM protein, human ; Epithelial Cell Adhesion Molecule ; G-T mismatch-binding protein ; MLH1 protein, human ; PMS2 protein, human (EC 3.6.1.-) ; MSH2 protein, human (EC 3.6.1.3) ; Mismatch Repair Endonuclease PMS2 (EC 3.6.1.3) ; MutL Protein Homolog 1 (EC 3.6.1.3) ; MutS Homolog 2 Protein (EC 3.6.1.3)
    Language English
    Publishing date 2020-01-29
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1502496-9
    ISSN 1573-7292 ; 1389-9600
    ISSN (online) 1573-7292
    ISSN 1389-9600
    DOI 10.1007/s10689-020-00161-w
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  7. Article ; Online: Colorectal Neoplasia in CDH1 Pathogenic Variant Carriers: A Multicenter Analysis.

    Stanich, Peter P / Elgindi, Dareen / Stoffel, Elena / Koeppe, Erika / Bansal, Ajay / Stetson, Rachel / Collins, Debra L / Clark, Dana Farengo / Karloski, Eve / Dudley, Beth / Brand, Randall E / Hall, Michael J / Chertock, Yana / Sullivan, Brian A / Muller, Charles / Hinton, Alice / Katona, Bryson W / Kupfer, Sonia S

    The American journal of gastroenterology

    2022  Volume 117, Issue 11, Page(s) 1877–1879

    Abstract: Introduction: Germline variants in CDH1 are associated with elevated risks of diffuse gastric cancer and lobular breast cancer. It is uncertain whether there is an increased risk of colorectal neoplasia.: Methods: This was a retrospective analysis of ...

    Abstract Introduction: Germline variants in CDH1 are associated with elevated risks of diffuse gastric cancer and lobular breast cancer. It is uncertain whether there is an increased risk of colorectal neoplasia.
    Methods: This was a retrospective analysis of colonoscopy outcomes in patients with germline CDH1 pathogenic/likely pathogenic variants.
    Results: Eighty-five patients were included with a mean age of 46.9 years. Initial colonoscopy found adenomatous polyps in 30 patients (35.3%), including advanced adenomas in 9 (10.6%). No colorectal cancers were identified on index or subsequent colonoscopies (when available).
    Discussion: CDH1 carriers have colorectal neoplasia identified at similar rates as in the general population. Despite potential difficulties after gastrectomy, colorectal cancer screening remains important in this population.
    MeSH term(s) Humans ; Middle Aged ; Female ; Retrospective Studies ; Germ-Line Mutation ; Colorectal Neoplasms/genetics ; Colorectal Neoplasms/surgery ; Colorectal Neoplasms/diagnosis ; Colonoscopy ; Breast Neoplasms ; Antigens, CD/genetics ; Cadherins/genetics
    Chemical Substances CDH1 protein, human ; Antigens, CD ; Cadherins
    Language English
    Publishing date 2022-09-06
    Publishing country United States
    Document type Multicenter Study ; Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 390122-1
    ISSN 1572-0241 ; 0002-9270
    ISSN (online) 1572-0241
    ISSN 0002-9270
    DOI 10.14309/ajg.0000000000001996
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  8. Article ; Online: Germline mutation prevalence in individuals with pancreatic cancer and a history of previous malignancy.

    Dudley, Beth / Karloski, Eve / Monzon, Federico A / Singhi, Aatur D / Lincoln, Stephen E / Bahary, Nathan / Brand, Randall E

    Cancer

    2018  Volume 124, Issue 8, Page(s) 1691–1700

    Abstract: Background: Approximately 10% of pancreatic adenocarcinoma (PC) cases are attributed to hereditary causes. Individuals with PC and a personal history of another cancer associated with hereditary breast and ovarian cancer (HBOC) or Lynch syndrome (LS) ... ...

    Abstract Background: Approximately 10% of pancreatic adenocarcinoma (PC) cases are attributed to hereditary causes. Individuals with PC and a personal history of another cancer associated with hereditary breast and ovarian cancer (HBOC) or Lynch syndrome (LS) may be more likely to carry germline mutations.
    Methods: Participants with PC and a history of cancer were selected from a pancreatic disease registry. Of 1296 individuals with PC, 149 had a relevant history of cancer. If banked DNA was available, a multigene panel was performed for individuals who had not 1) previously had a mutation identified through clinical testing or 2) undergone clinical multigene panel testing with no mutations detected.
    Results: Twenty-two of 124 individuals with PC and another HBOC- or LS-related cancer who underwent genetic testing had a mutation identified in a PC susceptibility gene (18%). If prostate cancer is excluded, the mutation prevalence increased to 23% (21/93). Mutation carriers were more likely to have more than 1 previous cancer diagnosis (P = .001), to have had clinical genetic testing (P = .001), and to meet National Comprehensive Cancer Network (NCCN) genetic testing criteria (P < .001). Approximately 23% of mutation carriers did not meet NCCN HBOC or LS testing guidelines based on their personal cancer history and reported cancer history in first-degree relatives.
    Conclusion: At least 18% of individuals with PC and a personal history of other HBOC- or LS-related cancers carry mutations in a PC susceptibility gene based on our data, suggesting that criteria for genetic testing in individuals with PC should include consideration of previous cancer history. Cancer 2018;124:1691-700. © 2018 American Cancer Society.
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Biomarkers, Tumor/genetics ; Colorectal Neoplasms, Hereditary Nonpolyposis/genetics ; DNA Mutational Analysis ; Female ; Genetic Predisposition to Disease ; Germ-Line Mutation ; Hereditary Breast and Ovarian Cancer Syndrome/genetics ; Humans ; Male ; Medical History Taking ; Middle Aged ; Neoplasms, Second Primary/genetics ; Pancreatic Neoplasms/genetics ; Young Adult ; Pancreatic Neoplasms
    Chemical Substances Biomarkers, Tumor
    Language English
    Publishing date 2018-01-23
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1429-1
    ISSN 1097-0142 ; 0008-543X ; 1934-662X
    ISSN (online) 1097-0142
    ISSN 0008-543X ; 1934-662X
    DOI 10.1002/cncr.31242
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  9. Article ; Online: The Effect of Pancreatic Juice Collection Time on the Detection of KRAS Mutations.

    Suenaga, Masaya / Dudley, Beth / Karloski, Eve / Borges, Michael / Irene Canto, Marcia / Brand, Randall E / Goggins, Michael

    Pancreas

    2017  Volume 47, Issue 1, Page(s) 35–39

    Abstract: Objective: Secretin-stimulated pancreatic juice is collected from the duodenum and analyzed to identify biomarkers of pancreatic neoplasia, but the optimal duration of pancreatic juice collection is not known.: Methods: We compared the yield of KRAS ... ...

    Abstract Objective: Secretin-stimulated pancreatic juice is collected from the duodenum and analyzed to identify biomarkers of pancreatic neoplasia, but the optimal duration of pancreatic juice collection is not known.
    Methods: We compared the yield of KRAS mutations detected in pancreatic juice samples aspirated from near the duodenal papilla at 1 to 5, 6 to 10, and 11 to 15 minutes after secretin infusion, and from the third part of the duodenum (at 15 minutes) from 45 patients undergoing endoscopic ultrasound pancreatic surveillance. KRAS mutation concentrations were measured by using droplet digital polymerase chain reaction.
    Results: Forty of 45 patients had KRAS mutations detected in their pancreatic juice, and most patients' juice samples had more than 1 KRAS mutation. Of 106 KRAS mutations detected in 171 pancreatic juice samples, 58 were detected in the 5-minute samples, 70 mutations were detected in the 10-minute samples, and 65 were detected in the 15-minute samples. Nine patients who did not have KRAS mutations detected in their 5-minute sample had mutations detected in samples collected at later time points. Ninety-percent of all pancreatic juice mutations detected in any sample were detected in the 5- or 10-minute samples.
    Conclusions: Collecting pancreatic juice for 10 minutes after secretin infusion increases the likelihood of detecting pancreatic juice mutations over shorter collections.
    MeSH term(s) Aged ; DNA Mutational Analysis ; Female ; Humans ; Male ; Middle Aged ; Mutation ; Pancreatic Juice/metabolism ; Pancreatic Neoplasms/diagnosis ; Pancreatic Neoplasms/genetics ; Proto-Oncogene Proteins p21(ras)/genetics ; Time Factors
    Chemical Substances KRAS protein, human ; Proto-Oncogene Proteins p21(ras) (EC 3.6.5.2)
    Language English
    Publishing date 2017-12-03
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ZDB-ID 632831-3
    ISSN 1536-4828 ; 0885-3177
    ISSN (online) 1536-4828
    ISSN 0885-3177
    DOI 10.1097/MPA.0000000000000956
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  10. Article ; Online: The impact of genetic counseling on patient engagement in a specialty cancer clinic.

    Zakas, Anna L / Leifeste, Claire / Dudley, Beth / Karloski, Eve / Afonso, Samantha / Grubs, Robin E / Shaffer, John R / Durst, Andrea L / Parkinson, Michael D / Brand, Randall

    Journal of genetic counseling

    2019  Volume 28, Issue 5, Page(s) 974–981

    Abstract: The identification of patient outcomes unique to the field of genetic counseling has become a recent priority of the profession. Current health-care efforts have targeted patient engagement as an outcome capable of improving population health and ... ...

    Abstract The identification of patient outcomes unique to the field of genetic counseling has become a recent priority of the profession. Current health-care efforts have targeted patient engagement as an outcome capable of improving population health and reducing health-care costs. This study analyzed patient engagement levels among 182 participants who underwent genetic counseling for gastrointestinal (GI) cancer risk assessment in an outpatient specialty clinic. Patients seen at the UPMC Hereditary GI Tumor Program completed a validated patient engagement measure, the Altarum Consumer Engagement (ACE), prior to undergoing genetic counseling and again three months after enrollment. Paired t test analysis was conducted to assess the changes in Total ACE scores, and within the following three domains: Navigation, Informed Choice, and Commitment. In the sample of 182 participants, Total ACE scores increased after genetic counseling (by 5.7%; p < .0001), as did all three domains (Commitment p = .0008; Navigation p = .0008; and Informed Choice p = .0016). This study is the first known report of patient engagement levels in individuals undergoing genetic counseling in a specialty cancer clinic and suggests that genetic counseling improves patient engagement levels.
    MeSH term(s) Adult ; Female ; Genetic Counseling/psychology ; Humans ; Male ; Middle Aged ; Neoplasms/therapy ; Patient Participation
    Language English
    Publishing date 2019-07-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1117799-8
    ISSN 1573-3599 ; 1059-7700
    ISSN (online) 1573-3599
    ISSN 1059-7700
    DOI 10.1002/jgc4.1149
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