28 results on '"Lynn, Amy"'
Search Results
2. IL-27 maintains cytotoxic Ly6C+ γδ T cells that arise from immature precursors.
- Author
-
Wiesheu, Robert, Edwards, Sarah C, Hedley, Ann, Hall, Holly, Tosolini, Marie, Fares da Silva, Marcelo Gregorio Filho, Sumaria, Nital, Castenmiller, Suzanne M, Wardak, Leyma, Optaczy, Yasmin, Lynn, Amy, Hill, David G, Hayes, Alan J, Hay, Jodie, Kilbey, Anna, Shaw, Robin, Whyte, Declan, Walsh, Peter J, Michie, Alison M, and Graham, Gerard J
- Subjects
T cells ,TRANSCRIPTION factors ,T cell receptors ,CELL physiology ,CANCER cells ,WILDLIFE conservation ,CANCER invasiveness - Abstract
In mice, γδ-T lymphocytes that express the co-stimulatory molecule, CD27, are committed to the IFNγ-producing lineage during thymic development. In the periphery, these cells play a critical role in host defense and anti-tumor immunity. Unlike αβ-T cells that rely on MHC-presented peptides to drive their terminal differentiation, it is unclear whether MHC-unrestricted γδ-T cells undergo further functional maturation after exiting the thymus. Here, we provide evidence of phenotypic and functional diversity within peripheral IFNγ-producing γδ T cells. We found that CD27
+ Ly6C− cells convert into CD27+ Ly6C+ cells, and these CD27+ Ly6C+ cells control cancer progression in mice, while the CD27+ Ly6C− cells cannot. The gene signatures of these two subsets were highly analogous to human immature and mature γδ-T cells, indicative of conservation across species. We show that IL-27 supports the cytotoxic phenotype and function of mouse CD27+ Ly6C+ cells and human Vδ2+ cells, while IL-27 is dispensable for mouse CD27+ Ly6C− cell and human Vδ1+ cell functions. These data reveal increased complexity within IFNγ-producing γδ-T cells, comprising immature and terminally differentiated subsets, that offer new insights into unconventional T-cell biology. Synopsis: Mouse IFNγ-producing γδ-T cells are potent cancer-killing cells; however, their diversity and regulation by cytokines is poorly understood. This study shows that CD27+ Ly6C+ γδ T cells are terminally differentiated cells responsive to IL-27 that originate from immature CD27+ Ly6C- γδ T cells. The cell surface marker, Ly6C, defines a cytotoxic and terminally differentiated CD27+ γδ T cell subset. Compared to CD27+ Ly6C- γδ T cells, CD27+ Ly6C+ γδ T cells are characterized by transcription factor T-bet, IFNγ, and CD44 expression as well as high levels of additional cytotoxic molecules. CD27+ Ly6C+ γδ T cells are more proficient for killing cancer cells than CD27+ Ly6C- γδ T cells and can slow tumor growth in vivo. The conversion of immature CD27+ Ly6C- γδ T cells into CD27+ Ly6C+ γδ T cells is concomitant with acquisition of their cytotoxic profile. IL-27 supports the cytotoxic phenotype of mouse CD27+ Ly6C+ γδ T cells and human Vδ2+ γδ T cells. Mouse IFNγ-producing γδ T cells have functional diversity similar to humans, with IL-27 important for cytotoxic phenotype in more mature γδ T cells. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
3. Locally Invasive Pheochromocytoma Combined with Primary Malignant Adrenal Lymphoma
- Author
-
Oraibi, Omar H., Wharry, Laura I., Lynn, Amy A., Chaudhry, Foiqa, Jaume, Juan C., and Jun, John Y.
- Published
- 2019
- Full Text
- View/download PDF
4. Effective Practices for At-Risk Elementary and Middle School Students, 2002-03 through 2004-05. E&R Report No. 06.03
- Author
-
Wake County Public School System (WCPSS), Evaluation and Research Department, Baenen, Nancy, Ives, Sarah, Lynn, Amy, Warren, Tom, Gilewicz,, and Yaman, Kimberly
- Abstract
The students who have the most difficulty reaching accountability standards in Wake County Public Schools are those with more than one of the following characteristics: recipients of free or reduced-price lunch, students with disabilities, and/or students with limited English proficiency. The Evaluation and Research Department identified elementary and middle schools that differed in their effectiveness in promoting achievement growth for these students. Quantitative and qualitative analyses suggest differences in both attitudes and practices. The more effective schools had higher expectations for these students, and greater confidence in their ability to meet students' needs. Evidence suggested more effective administrative leadership/support, training, and utilization of resources. Higher-growth middle schools utilized assessments to inform instruction more frequently, and higher-growth elementary schools had more structured collaboration around student needs. Further research is planned. The following are appended: (1) Literature Review for Each Group of Interest; (2) Highlights from Longview School; and (3) Interview and Survey Instruments.
- Published
- 2006
5. Mixed Reality Surgical Navigation System; Positional Accuracy Based on Food and Drug Administration Standard.
- Author
-
Morley, Christopher T., Arreola, David M., Qian, Long, Lynn, Amy L., Veigulis, Zachary P., and Osborne, Thomas F.
- Abstract
Background: Computer assisted surgical navigation systems are designed to improve outcomes by providing clinicians with procedural guidance information. The use of new technologies, such as mixed reality, offers the potential for more intuitive, efficient, and accurate procedural guidance. The goal of this study is to assess the positional accuracy and consistency of a clinical mixed reality system that utilizes commercially available wireless head-mounted displays (HMDs), custom software, and localization instruments. Methods: Independent teams using the second-generation Microsoft HoloLens
© hardware, Medivis SurgicalAR© software, and localization instruments, tested the accuracy of the combined system at different institutions, times, and locations. The ASTM F2554-18 consensus standard for computer-assisted surgical systems, as recognized by the U.S. FDA, was utilized to measure the performance. 288 tests were performed. Results: The system demonstrated consistent results, with an average accuracy performance that was better than one millimeter (.75 ± SD.37 mm). Conclusion: Independently acquired positional tracking accuracies exceed conventional in-market surgical navigation tracking systems and FDA standards. Importantly, the performance was achieved at two different institutions, using an international testing standard, and with a system that included a commercially available off-the-shelf wireless head mounted display and software. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
6. A Control-Group Comparison of Two Reading Fluency Programs: The Helping Early Literacy with Practice Strategies (HELPS) Program and the Great Leaps K-2 Reading Program
- Author
-
Begeny, John C., Laugle, Kelly M., Krouse, Hailey E., Lynn, Amy E., Tayrose, Michelle P., and Stage, Scott A.
- Abstract
Reading fluency is a critical component of effective reading instruction for students of early elementary age. However, national data suggest that 40% of U.S. fourth-grade students are nonfluent readers. Implementing evidence-based, time-efficient, and procedurally standardized instructional strategies may help address this problem. This study evaluates the efficacy of two such programs designed to supplement a core reading curriculum for all emerging readers: the Great Leaps K-2 Reading Program, which is currently used in schools throughout the United States, and the Helping Early Literacy With Practice Strategies (HELPS) Program, which was developed for the purposes of this study. Each program was implemented with second grade participants, and each program was evaluated against a wait-list control group. Results indicated that students receiving the HELPS Program scored significantly better than students in the control group across several measures of early reading, with effect sizes ranging from medium to large. No other statistically significant differences were found. Implications of these findings are discussed in terms of increasing the use of evidence-based reading practices in schools. (Contains 3 tables and 2 footnotes.)
- Published
- 2010
7. Predictors of Parenting Stress for Abusive and Nonabusive Mothers
- Author
-
McPherson, Andrea V., Lewis, Kristen M., and Lynn, Amy E.
- Abstract
We examined a model of parenting stress for abusive mothers (n = 80) and nonabusive mothers (n = 86) using linear regression analyses. Predictors in the model included (a) the degree to which mothers were bothered by child misbehavior, (b) mothers' general psychological functioning, and (c) observed child behavior during parent-child interactions. Whether abuse status moderated the relations between each predictor and parenting stress was also explored. Results indicated that mothers' psychological functioning significantly predicted parenting stress; however, neither mothers' intolerance for their children's misbehavior nor observed child behavior were significant predictors of parenting stress in the regression model. A test of moderation revealed a significant interaction between parental intolerance and abuse status such that intolerance predicted parenting stress level only for abusive mothers. A comparison of correlations indicated that abusive mothers' level of parenting stress was more closely related to their intolerance for child conduct problems than to the child's behavior during play with their mothers. Findings are discussed in terms of implications for interventions to reduce parenting stress experienced by nonabusive and abusive mothers.
- Published
- 2009
- Full Text
- View/download PDF
8. The Intertextual, Sexually-Coded Rue Jacob: A Geocritical Approach to Djuna Barnes, Natalie Barney, and Radclyffe Hall
- Author
-
Wells-Lynn, Amy
- Published
- 2005
9. Steroidal Contraception and Medically Complex Women: Part 2
- Author
-
Boardman, Lynn Amy
- Published
- 2015
- Full Text
- View/download PDF
10. Steroidal Contraception and Medically Complex Women: Part 1
- Author
-
Boardman, Lynn Amy
- Published
- 2015
- Full Text
- View/download PDF
11. Predictors of Parenting Stress for Abusive and Nonabusive Mothers
- Author
-
McPherson, Andrea V., Lewis, Kristen M., Lynn, Amy E., Haskett, Mary E., and Behrend, Tara S.
- Published
- 2009
- Full Text
- View/download PDF
12. Scoping Review on Menstrual Suppression Among U.S. Military Service Members.
- Author
-
Phillips, Angela K and Lynn, Amy B
- Subjects
- *
HEALTH policy , *RESEARCH , *RESEARCH methodology , *SYSTEMATIC reviews , *MENSTRUATION , *EVALUATION research , *COMPARATIVE studies , *RESEARCH funding , *LITERATURE reviews , *MILITARY personnel - Abstract
Introduction: The purpose of this scoping review was to systematically evaluate literature addressing menstrual suppression in the military population and to identify gaps in the literature.Materials and Methods: A scoping review of the literature using Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) guidelines was completed. Quality appraisal was conducted using the Johns Hopkins Evidence-Based Practice (EBP) Evidence Level and Quality Guide.Results: Thirteen research articles and nine non-research articles were included. The themes identified were methods for menstrual suppression, barriers to menstrual suppression, and educational recommendations.Conclusions: Six gaps were identified: (1) readiness, (2) single branch of service, (3) options for suppression, (4) hesitance to suppress, (5) provider practices, and (6) stagnant research. Recommendations for future research, practice, and military health policy are provided. Expanding research on menstrual suppression in U.S. military service members will enhance the health of military service members, provider practices, and military health policy to promote military readiness. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF
13. Subacute Cutaneous Lupus as a Paraneoplastic Manifestation of Non-Hodgkin Lymphoma.
- Author
-
Khokher, Waleed, Cash, Ayla, Alom, Modar, Iftikhar, Saffa, Kesireddy, Nithin, Abuhelwa, Ziad, Malik, Ahmad, Lynn, Amy, and Altorok, Nezam
- Abstract
Malignancies have been associated with paraneoplastic syndromes, such as dermatomyositis. Subacute cutaneous lupus erythematosus (SCLE) can occur due to a wide array of cancers. Paraneoplastic SCLE obeys McLean's criteria and often regresses after the underlying malignancy has been treated appropriately. Anti-Ro/SSA antibodies are often present in patients with paraneoplastic SCLE; however, there have been many instances where anti-Ro may not be present. We report a case of non-Hodgkin lymphoma causing SCLE, a malignancy not previously known to be associated with paraneoplastic SCLE. We also highlight the importance of perhaps prompt chemotherapy to treat the underlying malignancy, as a failure to do so may lead to worse patient outcomes. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
14. Histologic Features of Surgically Removed Fallopian Tubes
- Author
-
Hunt, Jennifer L. and Lynn, Amy A.A.
- Subjects
Gynecology, Operative -- Usage -- Health aspects -- Research ,Fallopian tubes -- Research -- Health aspects -- Usage ,Health - Abstract
* Context.--The fallopian tube is a common specimen in a pathology laboratory. It may be examined either alone as a salpingectomy or tubal ligation specimen, or as part of a more complex specimen from a hysterectomy and/or oophorectomy operation. Although the common histologic findings in the fallopian tube have been described previously, to our knowledge no study has documented the frequency of histologic changes in fallopian tubes removed for all reasons or associations with clinical history. Design.--Hematoxylin-eosin-stained slides from 287 fallopian tube specimens were reviewed without knowledge of the clinical history. Three categories and associated subcategories of histologic findings were identified (listed in descending order of frequency): stromal and architectural alterations (fibrosis, intramuscular edema, cellular luminal contents, inclusion cysts, Walthard nests, pigmentosis tubae, Wolffian duct remnants, decidualized stroma, endosalpingiosis, and metastatic carcinoma), epithelial characteristics (cytologic atypia, vacuolization, metaplasia, and tufting), and inflammatory changes (intramuscular mast cells, plasma cells, neutrophils, and lymphoid follicles). Histologic findings were correlated with clinical history, surgery type, and age. Results.--Intramuscular edema was identified in 12.5% of specimens, most frequently in postpartum women. Plical fibrosis (35.5% of specimens), epithelial atypia (7.3%), epithelial vacuolization (6.6%), and epithelial tufting/stratification (3.5%) correlated with increased patient age. Inflammatory cells were relatively common; 69% of specimens contained intramuscular mast cells, 19.9% had stromal plasma cells, 10.5% had neutrophils, and 2.1% had lymphoid follicles. Conclusions.--This study provides data that may be valuable for surgical pathologists involved in identifying and characterizing common histologic changes in surgically removed fallopian tubes., The histologic findings in fallopian tubes have been described only sporadically in the literature. As this is a common specimen in the general surgical pathology laboratory, knowledge of the general [...]
- Published
- 2002
15. A control-group comparison of two reading fluency programs: the helping early literacy with practice strategies (HELPS) program and the Great Leaps K-2 reading program
- Author
-
Begeny, John C., Laugle, Kelly M., Krouse, Hailey E., Lynn, Amy E., Tayrose, Michelle P., and Stage, Scott A.
- Subjects
Reading teachers -- Methods ,Reading skills -- Psychological aspects ,Early childhood education -- Methods ,Education ,Psychology and mental health - Abstract
Abstract. Reading fluency is a critical component of effective reading instruction for students of early elementary age. However, national data suggest that 40% of U.S. fourth-grade students are nonfluent readers. [...]
- Published
- 2010
16. Extensive Circumferential Heterotopic Ossification Discovered at the Base of a Loop Ileostomy
- Author
-
Bosaily, Ahmad, Edminister, John, Magal, Samarchitha, Jamil, Mohammad, Lynn, Amy, and Hall, Glenn
- Subjects
Article Subject ,health services administration ,health care economics and organizations - Abstract
Heterotopic ossification is a rare phenomenon defined by the formation of bone within nonossifying soft tissues. A rare variant of heterotopic ossification is heterotopic mesenteric ossification (HMO), in which there is involvement of the mesentery and surrounding intra-abdominal structures. There are only four previously reported cases of HMO involving an ileostomy. We present a case of HMO affecting an ileostomy which was discovered during elective stoma reversal in a 52-year-old male who required fecal diversion following perineal necrotizing fasciitis.
- Published
- 2019
- Full Text
- View/download PDF
17. Lepromatous phlebitis of the external jugular vein
- Author
-
Thompson, Ana M., Lynn, Amy A. A., Robson, Kristi, Joyce, M. Patricia, Fivenson, David P., and Scollard, David
- Published
- 2003
18. Endometriosis-associated colorectal carcinosarcoma: A case report and review of the literature
- Author
-
Tsolakian, Ibrahim G., Crim, Aleia, Lynn, Amy, Zoorob, Dani, Klein, Peter, and Walter, Adam
- Published
- 2021
- Full Text
- View/download PDF
19. Consensus statement on effective communication of urgent diagnoses and significant, unexpected diagnoses in surgical pathology and cytopathology from the College of American Pathologists and Association of Directors of Anatomic and Surgical Pathology
- Author
-
Nakhleh, Raouf E., Myers, Jeffrey L., Allen, Timothy C., DeYoung, Barry R., Fitzgibbons, Patrick L., Funkhouser, William K., Mody, Dina R., Lynn, Amy, Fatheree, Lisa A., Smith, Anthony T., Lal, Avtar, and Silverman, Jan F.
- Subjects
Patients -- Care and treatment ,Medical societies ,Universities and colleges ,Health ,College of American Pathologists - Abstract
* Context.--Recognizing the difficulty in applying the concept of critical values to anatomic pathology diagnoses, the College of American Pathologists and the Association of Directors of Anatomic and Surgical Pathology have chosen to reevaluate the concept of critical diagnoses. Objective.--To promote effective communication of urgent and significant, unexpected diagnoses in surgical pathology and cytology. Design.--A comprehensive literature search was conducted and reviewed by an expert panel. Results.--A policy of effective communication of important results in surgical pathology and cytology is desirable to enhance patient safety and to address multiple regulatory requirements. Conclusions.--Each institution should create its own policy regarding urgent diagnoses and significant, unexpected diagnoses in anatomic pathology. This policy should be separate from critical results or panic-value policies in clinical pathology, with the expectation of a different time frame for communication. Urgent diagnosis is defined as a medical condition that, in most cases, should be addressed as soon as possible. Significant, unexpected diagnosis is defined as a medical condition that is clinically unusual or unforeseen and should be addressed at some point in the patient's course. Further details of this statement are provided. (Arch Pathol Lab Med. 2012; 136:148-154; doi: 10.5858/arpa.2011-0400-SA), To comply with regulatory and accreditation requirements, most institutions have adopted policies for communicating critical test results from clinical pathology laboratories, radiology departments, and other testing areas, such as the [...]
- Published
- 2012
- Full Text
- View/download PDF
20. Superstitious Behavior Among American and Japanese Professional Baseball Players.
- Author
-
Burger, Jerry M. and Lynn, Amy L.
- Subjects
- *
SUPERSTITION , *BELIEF & doubt , *BASEBALL players , *BASEBALL teams - Abstract
We examined the use of superstitious behavior by major league baseball players in the United States and Japan. The majority of professional players in both countries reported using superstitious behaviors but expressed little confidence that the behavior actually affected outcomes. Consistent with the uncertainty hypothesis, the more players believed luck affected outcomes during the game, the more they engaged in superstitious behavior. American players tended to be more superstitious than Japanese players. American players were more likely than the Japanese players to believe their superstitions aided their individual performance, whereas Japanese players were more likely than Americans to believe their superstitions helped the team performance. [ABSTRACT FROM AUTHOR]
- Published
- 2005
- Full Text
- View/download PDF
21. Utility of Proliferation Markers Ki-67 and Proliferating Cell Nuclear Antigen (PCNA) in the Evaluation of Uterine Papillary Serous Carcinomas.
- Author
-
Lynn, Amy A. A., King, Stephanie A., and LiVolsi, Virginia A.
- Subjects
CELL proliferation ,CELL nuclei ,UTERINE cancer ,ANTIGENS ,IMMUNOHISTOCHEMISTRY - Abstract
We examined proliferation markers Ki-67 and proliferating cell nuclear antigen (PCNA) to determine whether immunohistochemical staining results could predict outcome in 22 uterine papillary serous carcinomas (UPSC). Eighteen tumors (82%) had increased proliferation as demonstrated by Ki-67 immunostaining with 50% of these patients dying of disease. Twenty tumors (91%) showed high PCNA immunoreactivity; 60% of these patients died of disease. Most UPSC exhibit high immunoreactivity to Ki-67 and/or PCNA, which showed no correlation with outcome or stage. These results may reflect the aggressive clinical behavior of UPSC. We conclude that Ki-67 and PCNA immunohistochemistry have limited use as prognostic indicators in UPSC. [ABSTRACT FROM AUTHOR]
- Published
- 1997
- Full Text
- View/download PDF
22. In Reply.
- Author
-
Hunt, Jennifer L. and Lynn, Amy A. A.
- Subjects
- *
LETTERS to the editor , *FALLOPIAN tubes - Abstract
Presents a response by Jennifer L. Hunt and Amy A. A. Lynn to a letter to the editor about their article "Histologic Features of Surgically Removed Fallopian Tubes," in a 2002 issue of the journal "Archives of Pathology and Laboratory Medicine."
- Published
- 2003
- Full Text
- View/download PDF
23. A histological and functional description of the tissue causing chronic postthrombotic venous obstruction.
- Author
-
Comerota, Anthony J., Oostra, Carson, Fayad, Ziad, Gunning, William, Henke, Peter, Luke, Catherine, Lynn, Amy, and Lurie, Fedor
- Subjects
- *
NEOVASCULARIZATION , *CARDIOVASCULAR system , *HEMATOLOGY , *THROMBOSIS , *BIOMINERALIZATION - Abstract
Background Postthrombotic intraluminal tissue causing postthrombotic syndrome (PTS) has not been well described. This study defines its histological characteristics and assess whether tissue function evolves over time. Methods Specimens from 18 common femoral veins (CFV) from 16 patients obtained during CFV endovenectomy and iliocaval recanalization were examined. Phase 1 used hematoxylin and eosin and Masson's trichrome stains for collagen, immunohistochemical, and Von Kossa stains. Phase 2 examined young (≤ one year) and mature (≥ 10 years from acute DVT) specimens to evaluate evolution of endothelial function. Antibodies to four biomarkers were used to examine specific functions of endothelial cells lining neovessels and recanalization channels (RC). Results Phase 1: S pecimens demonstrated 80-90% of collagen type I, 10-20% of collagen type III, and dystrophic calcification. Neovessels and RC were in close proximity to each other. Thrombus and smooth muscle cells were absent, but white blood cells were present. Phase 2: VEGFR2 receptor uptake was more abundant in neovessels than RC and more prominent in younger specimens. Neovascular, nonchannel cells were observed more frequently in young specimens. CD-31 was similar in young and mature specimens. TIE-2 and von Willebrand factor antibodies had greater uptake in mature specimens. Conclusion Tissue causing chronic postthrombotic venous obstruction is predominantly type I collagen. Neovascularization and recanalization occur in close proximity. The biomarker for neovascularization and angiogenesis (VEGFR2) was more prominent in young specimens whereas TIE-2, a stabilizing biomarker and vWF were more frequently observed in mature specimens. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
24. An Unusual Presentation of Blastomycosis-Like Pyoderma Gangrenosum.
- Author
-
Simman R, Gordon D, Steven M, and Lynn A
- Subjects
- Aged, Diagnosis, Differential, Female, Humans, Neoplasm Recurrence, Local, Prednisone therapeutic use, Blastomycosis diagnosis, Blastomycosis drug therapy, Pyoderma, Pyoderma Gangrenosum diagnosis, Pyoderma Gangrenosum drug therapy
- Abstract
Introduction: Pyoderma gangrenosum (PG) is a complex disease that has the potential to mimic a wide variety of diseases and disorders. Pyoderma is a disease of exclusion, but it has many variants, including ulcerative, bullous, and pustular forms. Owing to the complexity of the disease, careful diagnosis is important because inappropriate treatment can result in wound recurrence., Case Report: A 74-year-old female presented to the clinic with a presumed diagnosis of squamous cell carcinoma on biopsy but with an abnormal presentation mimicking a blastomycosis lesion. After surgical excision of the lesion in the operating room, the final pathology report confirmed the diagnosis of blastomycosis-like pyoderma gangrenosum. The patient was treated with high-dose prednisone and skin grafts, which resulted in resolution of the wound., Conclusions: This case report highlights the need to involve a wide array of health care providers in the management of complex and recurring wounds as well as the need to consider a wide and diverse differential diagnosis when determining the final diagnosis of complex wounds.
- Published
- 2021
25. LOCALLY INVASIVE PHEOCHROMOCYTOMA COMBINED WITH PRIMARY MALIGNANT ADRENAL LYMPHOMA.
- Author
-
Oraibi OH, Wharry LI, Lynn AA, Chaudhry F, Jaume JC, and Jun JY
- Abstract
Objective: Pheochromocytoma (PHEO) combined with primary adrenal lymphoma is extremely rare. We describe a case of locally invasive PHEO combined with primary malignant lymphoma., Methods: We provide a case description with biochemical analyses, imaging, and pathologic findings., Results: A 79-year-old male presented with a 17-cm, complex mass in the left adrenal gland with non-contrast Hounsfield units of 100 and left para-aortic enlarged lymph nodes imaged by computed tomography. Biochemical evaluation showed plasma and 24-hour urinary normetanephrine significantly elevated about 22 times (about 13.5 times above the normal upper limit) while metanephrine levels were normal. With adequate perioperative preparation, en bloc resection of the left adrenal gland was performed. The pathology revealed a tumor consisting of B-cell lymphoma, a PHEO forming a large adrenal mass with soft tissue invasion with extensive sclerosis and a separate nodule with PHEO without sclerosis. Immunohistochemistry and in situ hybridization of the lymphoma were consistent with Epstein-Barr virus-positive, diffuse large B-cell lymphoma. Immunohistochemistry of the PHEO was positive for chromogranin, synaptophysin, and S100. The Ki67 index was 8.7% and PHEO of the adrenal gland scaled score was 8 (≥4 is considered potentially malignant)., Conclusion: To the best of our knowledge this is the first case demonstrating locally invasive and potentially malignant PHEO combined with primary malignant lymphoma in the same adrenal gland., Competing Interests: DISCLOSURE The authors have no multiplicity of interest to disclose., (Copyright © 2019 AACE.)
- Published
- 2018
- Full Text
- View/download PDF
26. A panel of DNA methylation markers reveals extensive methylation in histologically benign prostate biopsy cores from cancer patients.
- Author
-
Brikun I, Nusskern D, Gillen D, Lynn A, Murtagh D, Feczko J, Nelson WG, and Freije D
- Abstract
Background: Men with a negative first prostate biopsy will undergo one or more additional biopsies if they remain at high suspicion of prostate cancer. To date, there are no diagnostic tests capable of identifying patients at risk for a positive diagnosis with the predictive power needed to eliminate unnecessary repeat biopsies. Efforts to develop clinical tests using the epigenetic signature of cores recovered from first biopsies have been limited to a few markers and lack the sensitivity and specificity needed for widespread clinical adoption., Methods: We developed methylation-specific quantitative polymerase chain reaction assays for a panel of 24 markers that are preferentially methylated in prostate cancer. We modified the bisulfite conversion conditions to allow the integration of the methylation information from multiple markers. We determined the methylation status of the 24 markers in 213 prostate biopsy cores from 104 patients, 37 prostate cancer patients and 67 controls. We performed logistic regression on combinations of markers as well as the entire panel of 24 markers to identify the best candidates for a diagnostic test., Results: The marker panel differentiated between cancer cores and benign cores from non-cancer patients with 100% sensitivity and 97% specificity. Furthermore, the panel detected significant methylation in benign cores from prostate cancer patients that was not present in controls. Using methylation of 5 out of 24 to define a cancer case, the analysis of a single benign biopsy core identified 62% of prostate cancer patients undergoing repeat biopsies. ROC curve analysis showed that markers commonly methylated in benign cores from cancer patients are the best candidates for a diagnostic test. The results suggest that 5 to 10 markers will be needed to achieve optimal predictive power., Conclusions: This study shows that epigenetic field effects differ significantly between cancer patients and controls. Their detection in benign biopsy cores can form the basis of diagnostic tests to identify patients in need of repeat biopsies, reducing the cost of continued PCA screening by up to 40%. They could also be used to identify prostate cancer patients with low grade disease who are likely candidates for active surveillance or focal therapy.
- Published
- 2014
- Full Text
- View/download PDF
27. The cat conundrum.
- Author
-
Lynn A
- Subjects
- Animals, Female, Humans, Male, Population Control, Attitude, Castration veterinary, Cats physiology
- Published
- 2007
28. Cats are not small dogs: the emergence of feline medicine.
- Author
-
Lynn A
- Subjects
- Animals, Cat Diseases therapy, Cats, History, 20th Century, History, 21st Century, United States, Cat Diseases history, Veterinary Medicine history
- Abstract
Cats have finally garnered the attention they deserve in veterinary medicine, however, there is still much to learn about this unique species and new challenges surface daily. For example, at the time of writing, avian influenza in cats is being closely monitored by world veterinary and health officials. Controversial topics, such as how to manage the homeless cat population, declawing, and cloning will continue to spark active debate. However, the future appears promising for cats as more veterinarians, researchers, and organizations increase their focus on felines.
- Published
- 2006
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.