Aimee Steen

Dr. Aimee Steen

Western University oh Health Science College of Osteopathic Medicine of the Pacific
orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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30 December 2021 in Nutrients
Verified
Journal Article
Open access
PDF file
OIOana Camelia Iatcu
Oana Camelia Iatcu
ASAimee Steen
Aimee Steen
MCMihai Covașă
Mihai Covașă
The gut microbiota has been linked to the emergence of obesity, metabolic syndrome and the onset of type 2 diabetes through decreased glucose tolerance and insulin resistance. Uncontrolled diabetes can lead to serious health consequences such as impaired kidney function, blindness, stroke, myocardial infarction and lower limb amputation. Despite a variety of treatments currently available, cases of diabetes and resulting complications are on the rise. One promising new approach to diabetes focuses on modulating the gut microbiota with probiotics, prebiotics, synbiotics and fecal microbial transplantation. Differences in gut microbiota composition have been observed in preclinical animal models as well as patients with type 2 diabetes and complications such as diabetic nephropathy, diabetic retinopathy, diabetic neuropathy, cerebrovascular disease, coronary heart disease and peripheral artery disease compared to healthy controls. Severity of gut microbiota dysbiosis was associated with disease severity and restoration with probiotic administration in animal models and human patients has been associated with improvement of symptoms and disease progression. Characterizing the gut microbiota dysbiosis in different diseases and determining a causal relationship between the gut microbiota and disease can be beneficial in formulating therapeutic interventions for type 2 diabetes and associated complications. In this review, we present the most important findings regarding the role of the gut microbiota in type 2 diabetes and chronic complications as well as their underlying mechanisms.

24 June 2022 in Transfusion
Verified
Journal Article
Open access
Shane KronstedtShane Kronstedt
Shane Kronstedt
NRNicholas Roberts
Nicholas Roberts
RDRicky Ditzel
Ricky Ditzel
JEJustin Elder
Justin Elder
ASAimee Steen
Aimee Steen
JSJeffrey Siegler
Jeffrey Siegler
Background: Calcium plays an essential role in physiologic processes, including trauma's “Lethal Diamond.” Thus, inadequate serum calcium in trauma patients exacerbates the effects of hemorrhagic shock secondary to traumatic injury and subsequently poorer outcomes compared to those with adequate calcium levels. Evidence to date supports the consideration of calcium derangements when assessing the risk of mortality and the need for blood product transfusion in trauma patients. This review aims to further elucidate the predictive strength of this association for future treatment guidelines and clinical trials.Methods: Publications were collected on the relationship between i‐Ca and the outcomes of traumatic injuries from PubMed, Web of Science, and CINAHL. Manuscripts were reviewed to select for English language studies. Hypocalcemia was defined as i‐Ca <1.2 mmol/L.Results: Using PRISMA guidelines, we reviewed 300 studies, 7 of which met our inclusion criteria. Five papers showed an association between hypocalcemia and mortality.Conclusions: In adult trauma patients, there has been an association seen between hypocalcemia, mortality, and the need for increased blood product transfusions. It is possible we are now seeing an association between low calcium levels prior to blood product administration and an increased risk for mortality and need for transfusion. Hypocalcemia may serve as a biomarker to show these needs. Therefore, hypocalcemia could potentially be used as an independent predictor for multiple transfusions such that ionized calcium measurements could be used predictively, allowing faster administration of blood products.

4 December 2025 in Surgical Techniques Development
Verified
Journal Article
Open access
PDF file
NGNadav Graif
Nadav Graif
RARan Atzmon
Ran Atzmon
ASAimee Steen
Aimee Steen
Shai FactorShai Factor
Shai Factor
SBSamuel Belmont
Samuel Belmont
EAEyal Amar
Eyal Amar
Background: Septic arthritis of the hip (SAH) requires emergent surgical intervention. While open arthrotomy has been the traditional approach, arthroscopic treatment is emerging as an effective alternative. Tractionless techniques in adult populations remain understudied. Methods: Twenty-one patients (22 hips) met inclusion criteria. Six patients (7 hips) were excluded for age < 18 years, post-COVID osteomyelitis, prior hip surgery, or insufficient records, resulting in a final cohort of 15 patients. All fifteen patients underwent tractionless arthroscopic irrigation and debridement for suspected SAH (2014–2023). Inclusion required ≥2 clinical criteria (hip pain, limited range of motion, inability to bear weight, fever > 38 °C) AND ≥ 1 laboratory criterion (leukocytosis, elevated CRP, synovial WBC > 50,000, positive culture). Primary outcomes included Visual Analog Scale pain scores, inflammatory markers, and complications. Results: Median age was 33 years (range 20–76); 60% were female. VAS scores improved from 7 (6–10) to 1 (0–3) at discharge (p < 0.001). CRP levels decreased from 115 mg/L (35–206) to <5 mg/L (<5–9) postoperatively (p < 0.001). Positive cultures were obtained in 26.7% of cases, predominantly methicillin-sensitive Staphylococcus aureus. No perioperative complications occurred. Histopathological analysis revealed tenosynovial giant cell tumor (TGCT) in 33.3% of cases, representing an important differential diagnosis. Among non-TGCT cases, the culture-positive rate was 40%. No infection recurrence was observed during a minimum one-year follow-up. Conclusions: Tractionless arthroscopic irrigation and debridement appears effective for managing suspected SAH in adults, achieving significant improvements in pain scores and inflammatory markers without perioperative complications. This technique offers potential advantages by eliminating traction-related risks while maintaining effective joint debridement. Additionally, TGCT should be considered in the differential diagnosis of suspected SAH with culture-negative inflammatory arthropathy.

12 April 2024
Verified
Book Chapter
Closed access
PDF file
RARan Atzmon
Ran Atzmon
SBSamuel Belmont
Samuel Belmont
ASAimee Steen
Aimee Steen
RERath Ehud
Rath Ehud

3 May 2025
Verified
Book Chapter
Closed access
PDF file
RARan Atzmon
Ran Atzmon
SBSamuel Belmont
Samuel Belmont
ASAimee Steen
Aimee Steen
RERath Ehud
Rath Ehud