Nathaniel Parker

ORCID: 0000-0002-5519-7758
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About
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Research Areas
  • Neuroendocrine Tumor Research Advances
  • Cancer Diagnosis and Treatment
  • Chromatin Remodeling and Cancer
  • Cancer Immunotherapy and Biomarkers
  • Cancer Mechanisms and Therapy
  • Peptidase Inhibition and Analysis
  • Brain Metastases and Treatment
  • Colorectal and Anal Carcinomas
  • Metastasis and carcinoma case studies
  • Lymphoma Diagnosis and Treatment
  • Neurofibromatosis and Schwannoma Cases
  • Gastric Cancer Management and Outcomes
  • Lung Cancer Research Studies
  • Helicobacter pylori-related gastroenterology studies
  • Uterine Myomas and Treatments
  • CAR-T cell therapy research
  • Cutaneous lymphoproliferative disorders research
  • Economic and Financial Impacts of Cancer
  • Venous Thromboembolism Diagnosis and Management
  • Colorectal Cancer Treatments and Studies
  • Renal cell carcinoma treatment
  • Palliative Care and End-of-Life Issues
  • Cancer Genomics and Diagnostics
  • Fungal Infections and Studies
  • Genomic variations and chromosomal abnormalities

Yale New Haven Hospital
2023

Yale University
2023

University of Kansas
2018-2020

Wesley Medical Center
2019-2020

Ascension Via Christi
2020

Wichita State University
2019-2020

Cancer Center of Kansas
2020

St. Francis Hospital
2020

Kansas City University
2016-2019

University of Alberta
2017

Abstract BACKGROUND: Chlorantraniliprole is a novel anthranilic diamide insecticide registered for use in vegetables, fruits, grains and turf against variety of insect pests. The objective this article to summarize results acute toxicity testing chlorantraniliprole on seven species parasitic wasps with wide geographic distribution relevance different crops integrated pest management (IPM) programmes. RESULTS: Tier‐1, worst‐case laboratory studies evaluated wasp survival reproduction...

10.1002/ps.1977 article EN Pest Management Science 2010-06-10

<ns3:p>The <ns3:italic>SMARCB1/INI1</ns3:italic> gene was first discovered in the mid-1990s, and since then it has been revealed that loss of function mutations this result aggressive rhabdoid tumors. Recently, term “rhabdoid tumor” become synonymous with decreased expression. When genetic aberrations occur, can cause complete expression, mosaic Although SMARCB1/INI1-deficient tumors are predominantly sarcomas, is a diverse group mixed phenotypes, which often make diagnosis challenging....

10.12688/f1000research.24808.2 preprint EN cc-by F1000Research 2020-12-09

Objective: Our purpose was to compare patients transferred from another hospital our trauma center with those arriving directly, identify barriers care for similar fractures. We hypothesized that the most frequent reason delayed definitive fixation would be interhospital transfer and primarily 2 reasons: complex more severe injuries less without insurance. Design: Retrospective review. Setting: Level 1 center. Patients/Participants: A total of 1549 skeletally mature 1655 fractures: 379...

10.1097/bot.0000000000000134 article EN Journal of Orthopaedic Trauma 2014-04-16

A 55-year-old female presented to the emergency department with seizures, left hemiparesis, and memory loss. Her past medical history was notable for a right triple-negative breast adenocarcinoma that diagnosed approximately two years prior. She underwent treatment chemotherapy, lumpectomy, radiation near her rural hometown. Radiologic studies were performed in department. Brain imaging revealed new 2-cm mass 4-cm frontal lobe brain lesion. an urgent craniotomy. Immunohistochemical staining...

10.7759/cureus.4278 article EN Cureus 2019-03-19

<ns4:p>The <ns4:italic>SMARCB1/INI1</ns4:italic> gene was first discovered in the mid-1990’s, and since then it has been revealed that loss of function mutations this result aggressive rhabdoid tumors. Recently, term “rhabdoid tumor” become synonymous with decreased expression. When genetic aberrations occur, can cause reduced, complete loss, mosaic Although SMARCB1/INI1-deficient tumors are predominantly sarcomas, is a diverse group mixed phenotypes, which often make diagnosis challenging....

10.12688/f1000research.24808.1 preprint EN cc-by F1000Research 2020-06-30

Myeloid sarcoma is an isolated extramedullary tumor mass consisting of immature myeloid cells. It characterized by highly variable outcomes and usually disrupts the normal architecture tissue in which it originates. may occur de novo or be associated with other hematological malignancies. Clinical presentation sarcomas can based on site, size, extent involvement. The diagnosis challenging requires a high index suspicion. Tissue sampling followed use auxiliary studies essential for diagnosis....

10.7759/cureus.8462 article EN Cureus 2020-06-05

Inhibitors of cytotoxic T-lymphocyte-associated antigen-4, programmed cell death protein-1, and death-ligand 1 have been shown to produce significant antitumor activity in multiple malignancies, become essential oncology standard-of-care therapies. Despite their success, the checkpoint inhibitors' ability amplify immune system response against tumor cells has associated with a unique panel side effects known as immune-related adverse events. The involvement myocardium reported previously,...

10.7759/cureus.8093 article EN Cureus 2020-05-13

Malignant SMARCB1/INI1-deficient extrarenal rhabdoid tumors are aggressive that extremely rare in adults. A 56-year-old male presented with the chief complaints of unilateral lower abdominal and pelvic pain. He underwent urgent surgical intervention mass resection tissue sampling. After pathology confirmed diagnosis, systemic chemotherapy vincristine, doxorubicin plus ifosfamide, mesna was administered. Following treatment, he experienced a durable long-lasting response to therapy for this...

10.7759/cureus.8273 article EN Cureus 2020-05-25

In 2019, approximately 330,000 new cases of breast cancer are estimated to be diagnosed, with about 80% those likely the invasive type. 1 On average, 75% all newly diagnosed cancers hormone receptor-positive (HR+). 2 Although HR+ expresses both estrogen and progesterone receptors (ER; PR), ER signaling pathways ultimately determine cellular growth survival. 3As a result, drug therapies were developed that selectively target vital steps in this pathway historically have been foundation...

10.17161/kjm.v13i1.13628 article EN cc-by-nc-nd Kansas Journal of Medicine 2020-04-17

Renal cell carcinoma (RCC) accounts for 3% of all adult malignancies and is known metastatic initial presentation, unpredictable pathway, late recurrence post-curative resection. We report a case solitary renal to the pancreas more than 10 years after radical nephrectomy. A high index suspicion must be maintained detect RCC metastasis rare atypical locations. lifelong follow-up recommended.

10.7759/cureus.8521 article EN Cureus 2020-06-09

e14159 Background: Pembrolizumab (P) is an antineoplastic agent approved for multiple different tumor origins as well agnostic based on MSI status. Thus understanding the characteristics most predictive of response essential. Living meta-analysis provides a method to continuously assimilate emerging trials. In this study, we created living compare effect P overall survival (OS). Methods: Meta-analysis was conducted according PRISMA guidelines. PubMed and Cochrane databases, conference...

10.1200/jco.2019.37.15_suppl.e14159 article EN Journal of Clinical Oncology 2019-05-20

Sporotrichosis is a mycotic infection caused by the Sporothrix schenckii species complex. It typically presents as localized, mostly cutaneous or lymphocutaneous infection, but has been increasingly presenting disseminated in immunocompromised individuals, especially HIV/AIDS patients. We also included literature review of sporotrichosis this patient population. The aim case report to raise awareness about atypical presentations an attempt decrease time diagnosis, initiate treatment earlier...

10.7759/cureus.8016 article EN Cureus 2020-05-07

<ns4:p>Primary malignant melanoma represents the fifth most common cancer in United States. It is subdivided into two forms: cutaneous (90%), visceral (8%, including ocular and mucosal) of unknown primary (2%). The vast majority gastrointestinal melanomas are secondary lesions until proven otherwise. Primary esophageal particular exceedingly rare, less than 200 cases have been documented literature to date. highly prevalent Japan occurs twice as much men women around 6th decade life. has a...

10.12688/f1000research.24302.1 preprint EN cc-by F1000Research 2020-06-02

Primary cutaneous diffuse large B-cell lymphoma, leg type, is an exceedingly rare and aggressive variant of primary lymphoma. An 84-year-old male presented to oncologist for new skin lesions on his abdomen right thigh. Excisional biopsy followed by histopathology immunohistochemistry confirmed the diagnosis type. His clinical course was complicated multiple relapses refractory disease. Ultimately, he achieved complete response with fourth-line ibrutinib therapy. Due contentious nature this...

10.7759/cureus.8651 article EN Cureus 2020-06-16

<ns3:p>Primary gastric cancer remains one of the most prevalent malignancies worldwide. Often patients remain asymptomatic until it is detected at an advanced stage with a poor prognosis. Thus, it’s characteristically difficult to initially diagnose becomes late stage, which point prognosis poor. Pernicious anemia classic risk factor for development primary cancer, but uncommonly seen in clinical practice. Over time, who produce autoantibodies intrinsic that cause pernicious typically will...

10.12688/f1000research.24353.2 preprint EN cc-by F1000Research 2020-12-02

Unplanned hospitalizations among patients with advanced cancer are often sentinel events prompting goals of care discussions and hospice transitions. Late referrals to hospice, especially those at the end life, associated decreased quality life higher total health costs. Inpatient management solid tumor malignancies is increasingly shifting from oncologists oncology hospitalists. However, little known about impact hospitalists on timing transition hospice.To compare discharge rate time an...

10.1002/cncr.35008 article EN Cancer 2023-09-14

<ns4:p>Primary rectal squamous cell carcinoma is rare compared to adenocarcinoma, which the predominant histologic type most commonly discovered at time of colorectal diagnosis. Due infrequent nature this malignancy, data on tumor pathogenesis and risk factors remains sparse. Moreover, no standardized therapeutic regimen exists. This report describes a case advanced diagnosed in 46-year-old female who initially presented with abdominal pain. Her clinical course was uncomplicated she...

10.12688/f1000research.24033.1 preprint EN cc-by F1000Research 2020-06-03

Colonic metastases are extremely rare, regardless of primary lung cancer type. A 64-year-old female was referred to the hospital by her gastroenterologist after a same-day colonoscopy revealed large rectosigmoid mass resulting in near total rectal occlusion. On admission, she complained abdominal pain and constipation. She had past medical history non-small cell (T1bN3M0 stage IIIB), diagnosed one year prior. thought be remission following radiation immunotherapy with pembrolizumab....

10.7759/cureus.4341 article EN Cureus 2019-03-28
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