Hemic and Immune Systems Commons^™

Anaplastic Large Cell Lymphoma In Children And Adolescents

Department of Pediatrics Faculty Publications

Anaplastic lymphoma kinase (ALK)-positive anaplastic large-cell lymphoma (ALCL) accounts for >95% of ALCL cases in children and adolescents. The first description of ALCL as a CD30-positive lymphoma in 1985 was followed by the detection of chromosomal translocations involving the ALK gene at chromosome 2p23. The pathogenesis of ALK-positive ALCL is based on signalling from the constitutive active ALK kinase. The clinical characteristics, therapy regimens and outcome data were reported in the 1990s and 2000s. Different chemotherapy regimens led to astonishingly similar long-term event-free survival rates of 70%, independent of the drugs, doses and duration of therapy. Additionally, patients with relapsed …

May-Thurner Compressive Syndrome Unmasked By Rapid Weight Loss, Jan Sambataro, James Abraham, Hesham Hassan

HCA Healthcare Journal of Medicine

May-Thurner Syndrome (MTS) is an anatomical syndrome characterized by a predisposition to clot formation when there is compression of the left iliac vein by the right iliac artery. In this case, we discuss an atypical presentation of MTS in a young male after rapid weight loss. The patient was admitted for an unprovoked massive proximal deep vein thrombosis (DVT) after a two-hundred-pound weight loss during the preceding six-month period. Treatment involved mechanical thrombectomy by interventional radiology, initiation of apixaban and recommended follow up with vascular surgery for angioplasty instead of immediate stent placement.

Editor's Choice - International Expert Consensus On The Management Of Acute Aortic Type B Intramural Haematoma And Penetrating Ulcer, Jean Panneton

Department Surgery Faculty Publications

Objective

The aim of this study was to achieve an international expert consensus on managing acute type B penetrating aortic ulcers (PAUs) and intramural haematomas (IMHs).

Methods

A modified Delphi consensus process was employed to develop recommendations for the management of acute type B PAU and IMH. Surveys were sent to international experts practicing in high volume aortic centres worldwide. Statements were voted on using a four point Likert scale in a three round Delphi process. Statements achieving grade A (full agreement 75%) or B (overall agreement 80%, full disagreement <  5%) were included as expert recommendations. Consistency of responses was measured using Cohen's κ and the intraclass correlation coefficient.

Results

Eighty three experts were included in the final analysis: …

Chronobiology Of Meal Timing In Early-Stage Hypertension: A Controlled Feeding Pilot Study Investigating The Effects On Renal And Vascular Function, Salvatore Carbone

EVMS School of Health Professions Faculty Publications

Lifestyle intervention is critical for young adults with early-stage hypertension. A Western diet has negative effects on kidney function and blood pressure; however, time-of-day effects are understudied. We hypothesized that consumption of a Western-style meal that is misaligned with the endogenous circadian rhythm would have adverse effects on blood pressure, kidney function, and vascular function. Ten young adults with elevated blood pressure or stage 1 hypertension (means ± SD: 26 ± 8 yr, 50% female) underwent a randomized crossover, isocaloric controlled feeding intervention. Participants were allocated to receive a Western-style meal high in sodium, sugar, and saturated fat in the …

Baseline Lymphopenia Predicts Survival In Ici-Naïve Solid Tumor Patients Receiving Immune Checkpoint Inhibitors: A Propensity-Matched Real-World Pan-Cancer Analysis, Ahmed Ismail

Department of Medicine Faculty Publications

Background: Baseline lymphopenia is common among advanced solid tumors and may influence the efficacy/safety of immune checkpoint inhibitors (ICIs), but large real-world evidence is limited. We evaluated the association between baseline absolute lymphocyte count (ALC) and clinical outcomes in adults with solid tumors treated with ICIs in routine practice. Methods: We performed a retrospective cohort study using TriNetX. Adults with solid tumors who received pembrolizumab, nivolumab, or atezolizumab (ICI-Naïve) between January 2015 and June 2026 were included. Baseline ALC was measured within 30 days before first treatment and was classified as lymphopenic (ALC < 1.5 × 10⁹/L) or non-lymphopenic (ALC ≥ 1.5 × 10⁹/L). Propensity score matching (1:1) yielded 5249 patients per group. The index date was the first immunotherapy date, and outcomes were assessed at 6, 12, 24, 36 months, and 5 years. The primary outcome was 24-month overall survival (OS); secondary outcomes were OS at 6 and 12 months and 6-month risks of healthcare utilization, immune-related adverse events (irAEs), and serious infections; and exploratory outcomes included OS at 36 months and 5 years. All outcomes were analyzed using Kaplan–Meier analysis, Cox proportional hazards models, and risk ratios. Subgroup analysis included OS stratified by solid tumor subtypes and prior lines of therapy. Results: After matching, patients with baseline lymphopenia …

Triphlapan: Predicting Hla Molecules Binding Peptides Based On Triple Coding Matrix And Transfer Learning, Yaohang Li

Computer Science Faculty Publications

Human leukocyte antigen (HLA) recognizes foreign threats and triggers immune responses by presenting peptides to T cells. Computationally modeling the binding patterns between peptide and HLA is very important for the development of tumor vaccines. However, it is still a big challenge to accurately predict HLA molecules binding peptides. In this paper, we develop a new model TripHLApan for predicting HLA molecules binding peptides by integrating triple coding matrix, BiGRU + Attention models, and transfer learning strategy. We have found the main interaction site regions between HLA molecules and peptides, as well as the correlation between HLA encoding and binding …

St-Elevation In Avr With Diffuse St-Segment Depression: Need For Urgent Catheterization?, Megyn Christensen, Katherine Schaffer, Bruce Lo

Department of Emergency Medicine Faculty Publications

Case Presentation: A 33 year old female with a history of antiphospholipid syndrome presented with exertional chest pain and ST-elevation in aVR with diffuse ST-depression. An emergent catheterization was performed which showed an isolated 99% stenosis in the left main coronary artery. The remaining coronary arteries were without any stenosis. Successful stent placement was performed, and the patient was discharged without complications.

Discussion: Previous guidelines suggested that ST-elevation with diffuse ST-depression should be treated as a STEMI-equivalent involving the left-main or proximal left anterior descending coronary artery. However recent data suggests that the majority of these cases may not involve …

A Novel Function Of Protein S In Clot Retraction, Narender Kumar

School of Medicine Faculty Publications

ISTH 2023 Congress, June 24 - 28, 2023, Montreal, Canada

Presentation, Diagnosis, And Acute Treatment Of Secondary Hemophagocytic Lymphohistiocytosis: A Case Report, Shane Sanne, Catherine Loehr

School of Medicine Faculty Publications

Secondary hemophagocytic lymphohistiocytosis (HLH) is a rare, immunologically driven disorder with a high mortality rate. It is typically diagnosed on the basis of clinical and laboratory criteria. We present the case of a 53-year-old woman with multiple previous hospitalizations for fever of unknown origin and fatigue. Her workup ultimately led to a diagnosis of HLH. We discuss the presentation, diagnostic criteria, and clinical treatment of secondary HLH to guide workup and management for future patients affected by this rare disease.

Cervicovaginal Lavage Fluid Iron And Manganese Levels In Women With And Without Vaginitis, Peter Takacs

Department of Obstetrics & Gynecology Faculty Publications

Transition metals such as iron and manganese are critical for cellular metabolism, redox balance, and immune function, and they also influence host–pathogen interactions. Vaginitis is characterized by mucosal inflammation that may alter local trace-element homeostasis. We hypothesize that inflammatory conditions such as vaginitis may be associated with altered cervicovaginal iron and manganese levels. We performed a prospective, single-center cohort study at the University of Debrecen (Hungary) between April 2023 and April 2024, enrolling 80 women ≥ 18 years with vulvovaginal complaints. Participants were assessed at baseline and at weeks 4, 8, and 12 with clinical evaluation and cervicovaginal lavage (CVL) …