Aging, Author Interviews, Dermatology / 19.02.2024
“Rejuvenation”: Injection of Filler into Photoaged Skin Stimulated Fibroblasts to Produce More Collagen
MedicalResearch.com Interview with:
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Dr. Frank Wang[/caption]
Frank Wang MD
William B. Taylor Endowed Professor of Clinical Dermatology
Associate Professor, Dermatology
Associate Chair for Education
Assistant Program Director, Dermatology Residency Program
University of Michigan
Ann Arbor, Michigan
MedicalResearch.com: What is the background for this study? How is the cross-linked hyaluronic acid obtained? Where was it injected?
Response: As the skin undergoes photoaging due to chronic exposure to ultraviolet light, it loses dermal collagen, which in turn leads to wrinkling, lines, and loss of support. The loss of collagen is, in large part, due to reduced function of the skin’s collagen-producing cells, dermal fibroblasts.
We wanted to investigate whether it was possible to reverse the decreased function of fibroblasts in photodamaged skin, by introducing a space-filling material into the dermis, injected CL-HA dermal filler. The CL-HA filler we used was donated to us for research purposes.
We performed injections of CL-HA into the mid-dermis (as is normally done when injected into the face) of severely photoaged forearm skin of human participants over the age of 60. We then examined skin samples at various time points, including 1, 2, 3 and 4 weeks and 3, 6, 9, and 12 months post-injection.
Dr. Frank Wang[/caption]
Frank Wang MD
William B. Taylor Endowed Professor of Clinical Dermatology
Associate Professor, Dermatology
Associate Chair for Education
Assistant Program Director, Dermatology Residency Program
University of Michigan
Ann Arbor, Michigan
MedicalResearch.com: What is the background for this study? How is the cross-linked hyaluronic acid obtained? Where was it injected?
Response: As the skin undergoes photoaging due to chronic exposure to ultraviolet light, it loses dermal collagen, which in turn leads to wrinkling, lines, and loss of support. The loss of collagen is, in large part, due to reduced function of the skin’s collagen-producing cells, dermal fibroblasts.
We wanted to investigate whether it was possible to reverse the decreased function of fibroblasts in photodamaged skin, by introducing a space-filling material into the dermis, injected CL-HA dermal filler. The CL-HA filler we used was donated to us for research purposes.
We performed injections of CL-HA into the mid-dermis (as is normally done when injected into the face) of severely photoaged forearm skin of human participants over the age of 60. We then examined skin samples at various time points, including 1, 2, 3 and 4 weeks and 3, 6, 9, and 12 months post-injection.
Dr. Magruder[/caption]
Matthew Magruder, MD PGY3
Orthopaedic Residency Program
Department of Orthopaedic Surgery and Rehabilitation
Maimonides Medical Center
MedicalResearch.com: What is the background for this study?
Response: The prevalence of obesity and diabetes mellitus has reached epidemic proportions. Approximately 37.3 million people in the United States, accounting for 11.3% of the total population, have diabetes, and 100.1 million, or 41.9%, of all US citizens are obese. Furthermore, these numbers are only projected to increase in the coming decades. This is an issue for orthopaedic surgeons because diabetes and obesity have consistently been demonstrated to be risk factors for complications following total joint replacements, especially total hip replacements. Therefore, we are in desperate need of new and more effective tools in mitigating the risk of poor outcomes in our joint replacement patients.
Semaglutide, and other GLP-1 agonists, are potentially a new tool that can be used to help decrease the risks following joint replacement surgery. Initially a medication to treat diabetes, semaglutide has recently been approved by the FDA to treat obesity as well, as randomized controlled trials have consistently demonstrated significant weight loss with minimal side effects. The purpose of our study was to see what effect the use of semaglutide had on total hip arthroplasty patient outcomes.
Dr. Akefe[/caption]
Isaac O Akefe DVM, PhD
Clem Jones Centre for Ageing Dementia Research
Queensland Brain Institute
The University of Queensland St Lucia
Academy for Medical Education, Medical School
Brisbane QLD Australia
MedicalResearch.com: What is the background for this study?
Response: The brain is the body’s fattiest organ, with fatty compounds called lipids making up 60% of its weight. Fatty acids are the building blocks of a class of lipids called phospholipids.
In our study, we first showed that levels of saturated fatty acids increase in the brain during neuronal communication and long-term memory formation, but we didn’t know what was causing these changes.
It is your lifestyle that determines your blood pressure levels. Your nutritional intake and the level of activity have a significant part as well. 
Wilson N. Merrell
Ph.D. Student
Dr. Li Li[/caption]
Li Li, M.D., Ph.D., M.P.H
Walter M. Seward Professor
Chair of Family Medicine
Director of population health
University of Virginia School of Medicine
Editor-in-chief of The BMJ Family Medicine
Dr. Li joined the U.S. Preventive Services Task Force in January 2021
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Speech and language delays and disorders can be challenging for children and their families and can lead to difficulties with reading and writing as children grow up.
The Task Force looked at the evidence on screening for speech and language delays and, unfortunately, there is not enough evidence to tell us whether or not it is helpful to screen all children 5 years old and younger for speech and language delays and disorders.
Dr. Di Ciano[/caption]
Patricia Di Ciano, PhD
Lauren C. Davis, MBS
Department of Medical Education
Geisinger Commonwealth School of Medicine
Scranton, PA 19409
MedicalResearch.com: What is the background for this study?
Response: Financial conflicts of interest (COIs) resulting from ties between academia and industry have been under scrutiny for their potential to hinder the integrity of medical research. COIs can lead to implicit bias, compromise the research process, and erode public trust (1-6). The American Psychiatric Association’s Diagnostic and Statistical Manual of Mental Disorders (DSM), standardizes symptom criteria and codifies psychiatric disorders. This manual contributes to the approval of new drugs, extensions of patent exclusivity, and can influence payers and mental health professionals seeking third-party reimbursements. Given the implications of the DSM on public health, it is paramount that it is free of industry influence. Previous research has shown a high prevalence of industry ties among panel and task force members of the DSM-IV-TR and DSM-5, despite the implementation of a disclosure policy for the DSM-5 (7,8). This study (9) determined the extent and type of COIs received by panel and task-force members of the DSM-5-TR (2022) (10). As the DSM-5-TR did not disclose COI, we used the Center for Medicare and Medicaid Services Open Payments (OP) database (11) to quantify them.
Scott Kaplan PhD
Assistant Professor of Economics
United States Naval Academy
Annapolis, MD 21402
MedicalResearch.com: What is the background for this study?
Response: Sugar-sweetened beverages (colloquially known as SSBs), which include sodas, fruit drinks, sports drinks, energy drinks, and sweetened coffee drinks, are the leading source of added sugars in the American diet, according to the CDC. They are associated with serious negative health outcomes, including type 2 diabetes, obesity, heart disease, kidney disease, 
Kalli Koukounas[/caption]
Kalli Koukounas, MPH
Dr. Lu Qi[/caption]
Lu Qi, MD, PhD, FAHA
Interim Chair, Department of Epidemiolog
HCA Regents Distinguished Chair and Professor
Tulane University School of Public Health and Tropical Medicine
Director, Tulane University Obesity Research Center
Director, Tulane Personalized Health Institute
New Orleans, LA 70112
MedicalResearch.com: What is the background for this study?
Response: Adding salt to foods is a behavior reflecting long-term preference to salty diets. High sodium intake is a major risk factor for chronic kidney disease.
In our previous studies, we have found that adding salt to foods at the table is related to various disorders including cardiovascular diseases, diabetes, and mortality. 
Amy Kennalley[/caption]
Amy Kennalley, MBS
First Year Medical Student
Department of Medical Education
Geisinger Commonwealth School of Medicine
MedicalResearch.com: What is the background for this study?
Response: Opioid use disorder (OUD) is a major public health crisis in the United States. Despite the availability of effective treatments, including the medication-assisted treatment (MAT) with methadone, many individuals with OUD do not receive the care they need. Over the COVID-19 pandemic, there were several policy changes related to take-home doses of methadone, which may have impacted access to this lifesaving medication.
The Drug Enforcement Administration's (DEA)'s Automated Reports and Consolidated Ordering System (ARCOS) is a database that tracks the distribution of controlled substances, including methadone distributed to opioid treatment programs (OTPs). This data can be used to assess trends in methadone distribution over time. Additionally, the Medicaid State Drug Utilization Data (SDUD) database provides comprehensive information on methadone prescribing to Medicaid patients.
By analyzing data from both ARCOS and SDUD, we aimed to provide a comprehensive picture of methadone distribution for OUD treatment in the United States. These findings1 are important because drug overdose deaths, primarily involving opioids, increased substantially (49%) from 2019 (70,980) to 2021 (~106,000).2
Dr. Klompas[/caption]
Michael Klompas MD, MPH, FIDSA, FSHEA
Hospital Epidemiologist
Brigham and Women’s Hospital
Professor of Medicine and Population Medicine
Harvard Medical School and
Harvard Pilgrim Health Care Institute
MedicalResearch.com: What is the background for this study? Can teeth be safely brush in patients who are comatose, intubated or have NG tubes?
Response: Pneumonia is thought to occur when secretions from the mouth get into the lungs. Since there are many microbes in the mouth, there’s a risk that secretions from the mouth that get into the lungs will lead to pneumonia. Toothbrushing may lower this risk by decreasing the quantity of microbes in the mouth.
It is indeed safe and appropriate to brush the teeth of someone who is comatose, intubated, or who has an NG tube. Indeed, our study found that the benefits of toothbrushing were clearest for patients receiving mechanical ventilation.
Dr. Angélica Cifuentes Kottkamp[/caption]
Angélica
Dr. Brousseau[/caption]
David Brousseau, MD, MS
Chair of Pediatrics
Nemours Children’s Health, Delaware and the
Sidney Kimmel Medical College at Thomas Jefferson University
