Epidemiology Commons^™

Differences In Hepatocellular Carcinoma Incidence Trends Across Us Census Divisions, 2001 To 2021, Itunu O Sokale, Omar Rosales, Aaron P Thrift, Hashem B El-Serag, Elyse Burgess, Abiodun O Oluyomi

Faculty, Staff and Students Publications

Background/Objectives: Hepatocellular carcinoma (HCC) is a leading cause of cancer diagnoses and deaths in the United States. This study serves as an update on secular trends in national HCC incidence rates while exploring potential geographic and racial/ethnic differences across all nine US census divisions.

Methods: We analyzed HCC incidence data reported to the United States Cancer Statistics (USCS) database from 2001 to 2021 (excluding 2020 data, based on the Centers for Disease Control and Prevention's cautionary recommendations for COVID-19 pandemic data usage for trend analysis). We performed trend analyses of age-adjusted incidence rates in the US overall, by census …

The Havcr1-Centric Host Factor Network Drives Zika Virus Vertical Transmission, Wenzhe Yu, Jun Tao, Hongmin Cao, Wanshan Zheng, Beiang Zhang, Yue Zhang, Peiqun Xu, Yiwei Zhang, Xuan Liu, Yinan Wang, Han Cai, Gang Liu, Fan Liu, Haibin Wang, Haiyan Zhao, Indira U Mysorekar, Xiaoqian Hu, Bin Cao

Center on Aging Staff Publications

Zika virus (ZIKV) vertical transmission results in devastating congenital malformations and pregnancy complications; however, the specific receptor and host factors facilitating ZIKV maternal-fetal transmission remain elusive. Here, we employ a genome-wide CRISPR screening and identify multiple placenta-intrinsic factors modulating ZIKV infection. Our study unveils that hepatitis A virus cellular receptor 1 (HAVCR1) serves as a primary receptor governing ZIKV entry in placental trophoblasts. The GATA3-HAVCR1 axis regulates heterogeneous cell tropism in the placenta. Notably, placenta-specific Havcr1 deletion in mice significantly impairs ZIKV transplacental transmission and associated adverse pregnancy outcomes. Mechanistically, the immunoglobulin variable-like domain of HAVCR1 binds to ZIKV via …

Primary Place To Go For Health Care And Its Association With Hpv Prevalence In Us Adults: Results From Nhanes 2013-2016, Amy L. Mcveety, Miyuki Sun

OHSU-PSU School of Public Health Annual Conference

Background: While access to health care is a known risk factor for many infectious diseases, including sexually transmitted infections, little research has investigated the relationship between access to primary care services and prevalent human papillomavirus (HPV) infection. Given HPV’s prevalence in the general population and lack of available treatments, it is necessary to understand possible risk factors to identify areas for intervention. This study uses primary place to go for health services as a proxy measure for access to care, in order to understand which sources of health care are serving patients with the highest prevalence of HPV infections and …

Association Of Plant-Based Dietary Patterns With Female Reproductive Cancer Incidence And Mortality: A Systematic Review, Esther L. Farley, Scott Moore, Gary A. Giovino, Darryl Somayaji

Campus Research Month

Healthy plant-based eating, a health-related behavior that nurses may promote, has been associated with a decrease in multiple types of cancer. However, the association of a healthy plant-based dietary pattern with decreased female reproductive cancers has not yet been established.

This review of the literature followed PRISMA guidelines to search for the relationship between a healthy plant-based dietary pattern and incidence of and mortality from a breast or gynecological cancer diagnosis. Databases searched for this review included PubMed, EMBASE, CINAHL, and Web of Science.

We identified 27 publications that met the qualifications for inclusion. Twelve studies covered mortality from breast, …

The Epidemiology Of Sports And Recreation Related Toe Fractures In The United States, Dogerno Norceide, Gabriel I. Onor, Oluwatomi Akingbola, William Justice, Nana F. Amponsah, Abimbola Okulaja, Ifeanyichukwu Onor, Michael Okoronkwo, Chibuikem Nwizu, David Pedowitz

School of Medicine Faculty Publications

BACKGROUND: Fractures of the toes are among the most frequently diagnosed lower extremity fractures. In sports, toe fractures may present after diverse mechanisms of injury, varying severity, and varying implications for management. This study aimed to discern trends in toe fractures presenting to US emergency departments (EDs) particularly in association with sports and recreational activities. An additional aim of the study was to identify if rates of toe fracture presentation significantly decreased during the year 2020 at the height of the COVID-19 pandemic. METHODS: We queried the National Electronic Injury Surveillance System (NEISS) database to identify toe fractures presented to …

Estimation Of Therapeutic Threshold For Tuberculosis Using Adapted Nominal Group Technique And Clinical Vignettes In Clinical And Community Settings In Southern Africa, Alfred Kipyegon Keter, Alastair Van Heerden, Tom Decroo, Tom Boyles, Shannon Bosman, Thandanani Madonsela, Lindani Innocent Msimango, Lenika Naiken, Carlos Kiyan, Mashaete Kamele

Population Health, East Africa

Background: When confronted with diagnostic uncertainty and a decision on whether to start treatment or not, clinicians consider the potential harm and benefit of offering versus withholding treatment. Treatment can be offered if the probability of tuberculosis (TB) in the patient is above the “therapeutic threshold” (ThT): the probability of disease at which the expected utility of treating and not treating is the same. We estimated ThT for TB in clinical and community settings in Southern Africa using two methods: an adapted nominal group technique (aNGT), and decisions made based on clinical vignettes (CVs).

Methods: We enrolled health …

Effects Of Smoking Behavior On Lung Metastasis In The All Of Us Research Program, Vikram R Shaw, Jinyoung Byun, Younghun Han, Christopher I Amos

Faculty, Staff and Students Publications

Smoking may be associated with an increased risk of lung metastasis in cancers of non-lung origin. We leverage survey and electronic health record data from the diverse All of Us Research Program (AoURP) database to investigate whether smoking and smoking-related behaviors increase the risk of lung metastasis in non-lung primary cancers. The results suggest that cigarette use, measured by four continuous variables, does not increase the risk of lung metastasis in seven common cancer types but demonstrates a small significant effect in a cohort including all types of cancer in the database in both univariable and multivariable analyses. An increased …

The Burden Of Steatotic Liver Disease Before And During The Covid-19 Pandemic: Correspondence To Editorial On “Current Burden Of Steatotic Liver Disease And Fibrosis Among Adults In The United States, 2017–2023”, Donghee Kim, Pojsakorn Danpanichkul, Karn Wijarnpreecha, George Cholankeril, Rohit Loomba, Aijaz Ahmed

Faculty, Staff and Students Publications

No abstract provided.

Current Burden Of Steatotic Liver Disease And Fibrosis Among Adults In The United States, 2017-2023, Donghee Kim, Pojsakorn Danpanichkul, Karn Wijarnpreecha, George Cholankeril, Rohit Loomba, Aijaz Ahmed

Faculty, Staff and Students Publications

Background/aims: Multi-society experts proposed the adoption of new terminology, metabolic dysfunctionassociated steatotic liver disease (MASLD) and steatotic liver disease (SLD). We studied the current prevalence of SLD and its subcategories in the US.

Methods: Using the recent National Health and Nutrition Examination Survey from 2017 to 2023, we analyzed data from 12,199 participants (≥18 years) who completed transient elastography. SLD and its subcategories, including MASLD, metabolic and alcohol-related liver disease (MetALD), and alcohol-related liver disease (ALD), were categorized according to consensus nomenclature.

Results: The age-adjusted prevalence of SLD (cut-off: 285 dB/m) was 35.0% (95% confidence interval [CI] 33.4-36.7). Within this …

Statin Use Is Associated With Protection Against Acute Cholangitis In Patients With Primary Sclerosing Cholangitis: A Multicenter Retrospective Cohort Study, Chiraag Kulkarni, George Cholankeril, Touran Fardeen, Joseph Rathkey, Samir Khan, Soumya Murag, Robert Lerrigo, Ahmad Kamal, Ajitha Mannalithara, Prasun Jalal, Aijaz Ahmed, John Vierling, Aparna Goel, Sidhartha R Sinha

Faculty, Staff and Students Publications

Introduction: Patients with primary sclerosing cholangitis (PSC) are at increased risk of acute cholangitis. The epidemiological risks of cholangitis are poorly studied despite the high morbidity associated with this infection. The aim of this study was to understand the impact of statins on acute cholangitis in PSC.

Methods: This multicenter, retrospective cohort study assessed data from 294 patients with PSC at Stanford Medical Center, Baylor Medical Center, and Valley Medical Center. Clinical factors associated with the development of cholangitis were identified using multivariable Cox regression.

Results: The patients were predominantly male (68.7%) with a median age at enrollment of 48 …

Addressing The Burden Of Steatotic Liver Disease: The Role Of Transient Elastography: Correspondence To Editorial On “Current Burden Of Steatotic Liver Disease And Fibrosis Among Adults In The United States, 2017–2023”, Donghee Kim, Pojsakorn Danpanichkul, Karn Wijarnpreecha, George Cholankeril, Rohit Loomba, Aijaz Ahmed

Faculty, Staff and Students Publications

No abstract provided.

Evaluating Medical Usage And Injury Prevalence At The 2024 College World Series, Roarick Schollmeyer, Jd Gregerson, Benjamin Stevens, Katie Weaver, Joseph Lippert

EMET Projects

Large-scale events such as the College World Series (CWS) pose unique challenges for medical services due to high crowd density, prolonged event durations, and variable environmental conditions. This study aimed to assess the medical usage rate (MUR) and injury prevalence at the 2024 CWS to inform future event planning and emergency medical preparedness. A retrospective analysis was conducted using patient encounter data collected between June 14 and June 24, 2024. Data sources included Union Medical event services, which documented on-site treatments and dispositions, and Omaha Fire Department EMS records detailing prehospital care. The MUR was calculated as the number of …

A Geospatial Analysis Of The Lung Cancer Burden In Philadelphia, Using Pennsylvania Cancer Registry Data From 2008-2017, Russell K. Mcintire, Katherine Senter, Christine S. Shusted, Rickisa Yearwood, Julie Barta, Scott W. Keith, Charnita Zeigler-Johnson

Division of Pulmonary, Allergy, and Critical Care Medicine Faculty Papers

(1) Background: Lung cancer is the deadliest and second most prevalent cancer in Pennsylvania (PA), and African American patients are disproportionately affected. Lung cancer morbidity and mortality in Philadelphia County are among the highest in PA. Geographic information systems (GIS) are useful to explore geospatial variations in the cancer burden and risk factors. Therefore, we used GIS to analyze the lung cancer burden in Philadelphia to assess which areas of the city have the highest morbidity and mortality, identify potential clusters, and determine which census tract-level characteristics were associated with higher tract-level cancer burden. (2) Methods: Using secondary data from …

Precision Phenotyping For Curating Research Cohorts Of Patients With Unexplained Post-Acute Sequelae Of Covid-19, Alaleh Azhir, Jonas Hügel, Jiazi Tian, Jingya Cheng, Ingrid V Bassett, Douglas S Bell, Elmer V Bernstam, Maha R Farhat, Darren W Henderson, Emily S Lau, Michele Morris, Yevgeniy R Semenov, Virginia A Triant, Shyam Visweswaran, Zachary H Strasser, Jeffrey G Klann, Shawn N Murphy, Hossein Estiri

Faculty, Staff and Student Publications

BACKGROUND: Scalable identification of patients with post-acute sequelae of COVID-19 (PASC) is challenging due to a lack of reproducible precision phenotyping algorithms, which has led to suboptimal accuracy, demographic biases, and underestimation of the PASC.

METHODS: In a retrospective case-control study, we developed a precision phenotyping algorithm for identifying cohorts of patients with PASC. We used longitudinal electronic health records data from over 295,000 patients from 14 hospitals and 20 community health centers in Massachusetts. The algorithm employs an attention mechanism to simultaneously exclude sequelae that prior conditions can explain and include infection-associated chronic conditions. We performed independent chart reviews …

Patterns And Outcomes In Urotrauma: An Analysis Of Fatality Trends And Contributing Factors, Neharika Penmetcha, Aun Bangash, Kelsey Baker

Research Symposium

Background: Urotrauma, involving injuries to the kidneys, ureters, and bladder, represents a critical subset of trauma cases, significantly impacting patient morbidity and mortality. Renal and urogenital injuries account for 10–20% of abdominal trauma in adults and children. Understanding urotrauma's epidemiology is vital for improving care protocols and resource allocation. Despite its impact, data on injury mechanisms, intent, and care modalities specific to urotrauma remain limited. This study investigates patterns in injury mechanisms, intent, transport modalities, and facility transfer status to identify factors influencing patient outcomes and inform trauma care improvements.

Methods: A retrospective review analyzed 3,492 trauma cases, filtered for …

Heart Failure In Black Populations: Epidemiology, Pathophysiology, And Treatment Disparities, Kazi N. Islam, Rahib K. Islam, Ivan Nguyen, Yasmeen Magherahabed, Humza Pirzadah, M. Bazlur Rashid

School of Medicine Faculty Publications

Heart failure (HF) remains a significant health challenge globally, placing a heavy burden on individuals, families, and healthcare systems. The prevalence of HF continues to rise, posing substantial public health concerns. This burden is particularly pronounced among the Black Population, who face higher prevalence, earlier onset, and greater severity of HF compared to other racial and ethnic groups. This review explores the multifaceted landscape of HF in Black individuals by examining epidemiological patterns, pathophysiological mechanisms, clinical presentations, treatment disparities, and clinical outcomes. Black individuals exhibit distinct pathophysiological characteristics, such as genetic variations contributing to heightened susceptibility and severity of HF. …

Outcomes Of Double Free Flap Reconstruction For Advanced Head And Neck Tumors In A Safety-Net Hospital Population, Yossef Alsabawi, John M. Gaddis, Angela D. Haskins, Jonathan Shum, David J. Hernandez

Research Symposium

Background: Double-free flap reconstruction has emerged as a viable option for addressing more complicated defects after oncologic resection. We aim to report the feasibility of this approach at a single-institutional safety net hospital.

Methods: A retrospective chart review was performed between November 2020 and October 2023 for adult patients who underwent multiple, simultaneous free tissue transfers for head and neck defects following tumor resection. This study occurs at Ben Taub Hospital, a safety net hospital in Houston, Texas. Data collected included demographics, risk factors, oncologic and operative details, complications, and functional and disease outcomes. Socioeconomic status was assessed …

Global Burden Of Major Chronic Liver Diseases In 2021, Gong Feng, Yusuf Yilmaz, Luca Valenti, Wai Kay Seto, Calvin Q. Pan, Nahum Méndez Sánchez, Feng Ye, Silvia Sookoian, Giovanni Targher, Christopher Opio

Internal Medicine, East Africa

Background: This study utilised the Global Burden of Disease data (2010–2021) to analyse the rates and trends in point preva-lence, annual incidence and years lived with disability (YLDs) for major chronic liver diseases, such as hepatitis B, hepatitis C,metabolic dysfunction-associated liver disease, cirrhosis and other chronic liver diseases.

Methods: Age-standardised rates per 100,000 population for prevalence, annual incidence and YLDs were compared acrossregions and countries, as well as the socio-demographic index (SDI). Trends were expressed as percentage changes (PC) andestimates were reported with uncertainty intervals (UI).

Results: Globally, in 2021, the age-standardised rates per 100,000 population for the …

Dementia In A Resource-Constrained Sub-Saharan African Setting: A Comprehensive Retrospective Analysis Of Prevalence, Risk Factors, And Management At The Only Neuropsychiatric Facility In Northeastern Nigeria, Ibrahim Abdu Wakawa, Umar Baba Musami, Suleiman Hamidu Kwairanga, Placidus Nwankuba Ogualili, Mohammed Yusuf Mahmood, Muhammad Abba Fugu, Mohammed Mala Gimba, Muktar Mohammed Allamin, Zaharadeen Umar Abbas, Chinedu Momoh

Brain and Mind Institute

INTRODUCTION: Dementia prevalence is increasing in sub-Saharan Africa, poten-tially due to population growth and aging. Resource-constrained settings such asNortheastern Nigeria face challenges in dementia management.

METHODS: We assessed dementia burden and management at the Federal Neuropsy-chiatric Hospital Maiduguri, the only neuropsychiatric facility in Northeastern Nigeria.This retrospective analysis included patient records from 1999 to 2023 for individuals60 year of age and older with a dementia diagnosis.

RESULTS: Of the 1216 cases reported, Alzheimer’s disease (60.5%) was the mostcommon subtype, followed by vascular dementia (24.5%). Hypertension (41.6%) wasthe most frequent comorbidity. Memory loss was present in all cases, whereasbehavioral …

Representation And Outcomes Of Catheter Ablation For Treatment Of Atrial Fibrillation Among Patients With Obesity: A Systematic Review Of Randomized Control Trials, Danielle Dircks, Eh M. Khaing, James Aguto, Jmaylia Mimms, William Schleifer, Jason Payne, Arthur Easley, Faris Khan Md, John Windle, Shane Tsai, Daniel Anderson Md, Gleb Haynatzki, Niyada Naksuk

EMET Projects

Background: The prevalence and impact of obesity on outcomes of atrial fibrillation (AF) ablation randomized controlled trials (RCTs) have not been well studied.

Objective: To examine the proportion of participants with obesity enrolled in RCTs of AF ablation and outcomes of ablation when subgroup analysis of participants with obesity were available.

Methods: We systematically searched PubMed and EMBASE for AF ablation RCTs published between January 1, 2015 to May 31, 2022. When body mass index (BMI) data were available, normal distribution was assumed and a z score was used to estimate the proportion of obesity. Results categorized by BMI or …

Supraclavicular Nodal Metastasis At Primary Staging Of Prostate Cancer Using 18f-Psma-1007 Pet/Ct, Samuel Gitau, Jasmit Shah, William Olwit, Saeed Samnakay, Manel Haj Mansour, Khalid Makhdomi

Brain and Mind Institute

Background: The most common sites of metastasis in prostate cancer are bone, pelvic and retroperitoneal lymph nodes, liver and lungs. This study aimed to evaluate the prevalence of supraclavicular nodal metastasis in newly diagnosed prostate cancer using 18F-PSMA-1007 PET/CT which has hitherto been understudied.

Methods: 18F-PSMA-1007 PET/CT examinations performed at our institution between June 2020 and June 2022 for primary staging of prostate cancer were reviewed to identify supraclavicular nodal metastasis from prostate cancer. Data variables included age, stage of disease, PSA level, Gleason score and ISUP/WHO grade group and how these compare with the presence of supraclavicular …

Molecular Profile Of Non-Small Cell Lung Cancer In A Predominantly Black African Population In Kenya: A Single Institution Review, Sitna Mwanzi, Shahin Sayed, Swati Das, Jonathan Wawire, Jasmit Shah, Asim Jamal Shaikh

Haematology and Oncology, East Africa

Targeted therapies for patients with non-small cell lung cancer (NSCLC) have significantly improved the outcomes for patients with oncogenic driver mutations. Testing for epidermal growth factor receptor (EGFR) mutations, anaplastic lymphoma kinase (ALK) rearrangement, c-ros oncogene 1 (ROS1) rearrangement and programmed death ligand 1 (PDL 1) testing are now highly recommended for all patients with NSCLC. There are clear geographical differences in the rate of driver mutations with higher EGFR mutation rates in the Asian population in comparison to the Caucasian population. Little is known about the rate of oncogenic driver mutations in predominantly Black African populations like those living …

Social Media In Advancing Equity And Collaboration In Rheumatology: The Cordiality Review, Ihsane Hmamouchi, Nelly Ziade, Adewale Adebajo, Latika Gupta, Puja Mehta, Angela Migowa, Elena Nikiphorou, Noelle A. Rolle, Didem Saygin, Namrata Singh

Pathology, East Africa

Social media has transformed communication in academia and medicine, offering stakeholders innovative avenues for knowledge exchange and collaboration. The CORDIALITY review (soCial media fOR aDvancing equIty And coLlaboration In rheumaTologY) examines the impact of social media on education and information dissemination, patient education and empowerment, networking and mentorship, and research collaboration within rheumatology, when effectively used. In this narrative review, we consider the opportunities as well as the challenges related to each of these facets of social media use. With a focus on inequities faced globally, we give particular consideration to disparities by gender as they relate to the rheumatology …

Antiseizure Medications And Their Differing Effects On Cardiovascular Risk, Aleena Abbasi, Bassil Abbasi, Scott Mintzer, Carla Lopinto-Khoury

Department of Neurology Faculty Papers

This review discusses the differing effects of enzyme-inducing and non-inducing antiseizure medications on cardiovascular risk and their implications for the management strategies of epilepsy patients. Traditional risk markers, including low density lipoprotein, high density lipoprotein and triglycerides, can be altered by both enzyme induction and inhibition. Other markers of vascular risk, including c-reactive protein, non-high-density lipoprotein and homocysteine, are affected by antiseizure medications, although adults and children may have different responses. The overall atherosclerotic risk picture is more complex due to indirect effects such as neuroendocrine function and the metabolic syndrome. Large scale data shows an evolving understanding of cardiovascular …

Self-Collection For Primary Hpv Testing: Acceptability In A Large Urban Emergency Department, Itunu O Sokale, Dick C Kuo, Claire M Hoppenot, Lorraine R Reitzel, Luis H Juarez, Katherine J Hernandez, Susan L Parker, Chris Amos, Maria Daheri, Kelly R Keene, Jane R Montealegre, Aaron P Thrift

Faculty, Staff and Students Publications

Study objective: Overdue cervical cancer screening increases the risk of invasive cervical cancer. It is important to identify settings where self-collection for primary human papillomavirus (HPV) testing can be implemented to have high effect on cervical cancer screening among hard-to-reach women with overdue screening. Herein, we examined the acceptability of HPV self-collection, including completion rates, attitudes, and experiences among women seeking noncritical care at a high-volume urban safety-net hospital emergency department (ED) in Houston, Texas, United States.

Methods: In this single-arm intervention pilot study, we recruited women overdue for cervical cancer screening in the waiting areas of a safety-net hospital …

Phase 3 Validation Of Paam For Hepatocellular Carcinoma Risk Stratification In Cirrhosis, Naoto Fujiwara, Camden Lopez, Tracey L Marsh, Indu Raman, Cesia A Marquez, Subhojit Paul, Sumit K Mishra, Naoto Kubota, Courtney Katz, Hiroaki Kanzaki, Michael Gonzalez, Lisa Quirk, Sneha Deodhar, Pratibha Selvakumar, Prithvi Raj, Neehar D Parikh, Lewis R Roberts, Myron E Schwartz, Mindie H Nguyen, Alex S Befeler, Stephanie Page-Lester, Sudhir Srivastava, Ziding Feng, K Rajender Reddy, Saira Khaderi, Sumeet K Asrani, Fasiha Kanwal, Hashem B El-Serag, Jorge A Marrero, Amit G Singal, Yujin Hoshida

Faculty, Staff and Students Publications

Background & aims: Hepatocellular carcinoma (HCC) risk stratification is an urgent unmet need for cost-effective HCC screening and early detection in patients with cirrhosis to improve poor HCC prognosis.

Methods: Molecular (prognostic liver secretome signature with α-fetoprotein) and clinical (aMAP [age, male sex, albumin-bilirubin, and platelets] score) variable-based scores were integrated into PAaM (prognostic liver secretome signature with α-fetoprotein plus age, male sex, albumin-bilirubin, and platelets), which was subsequently validated in 2 phase 3 biomarker validation studies: the statewide Texas HCC Consortium and nationwide HCC Early Detection Strategy prospective cohorts, following the prospective specimen collection, retrospective blinded evaluation design. The …

Characteristics And Outcomes Of Adults Hospitalized With Respiratory Syncytial Virus, Brian S. Shaw, Cara Slaton, Ian P. Murphy, Michael Mcalister, Daniel Egan, Kwabena Ayesu

The University of Louisville Journal of Respiratory Infections

Background: Respiratory syncytial virus (RSV) is a negative sense single-stranded RNA virus (ssRNA) that primarily causes respiratory infections in both children and older adults. We examined clinical characteristics and outcomes of hospitalized adult patients who tested positive for RSV.

Methods: This was a multicenter, retrospective, descriptive study that examined adult patients admitted with a positive RSV test over two years across eight hospitals in Orlando, Florida.

Results: A total of 120 patients were included, of which 88 (73%) were 60 years old and older. Overall, patients with RSV infection were caucasian (62%) with a median age of 70 years and …

A Randomized, Double-Blind, Placebo-Controlled Trial Of Il-7 In Critically Ill Patients With Covid-19, Manu Shankar-Hari, Bruno Francois, Kenneth E Remy, Cristina Gutierrez, Stephen Pastores, Thomas Daix, Robin Jeannet, Jane Blood, Andrew H Walton, Reinaldo Salomao, Georg Auzinger, David Striker, Robert S Martin, Nitin J Anand, James Bosanquet, Teresa Blood, Scott Brakenridge, Lyle L Moldawer, Vidula Vachharajani, Cassian Yee, Felipe Dal-Pizzol, Michel Morre, Frederique Berbille, Marcel Van Den Brink, Richard Hotchkiss

Faculty, Staff and Student Publications

Background: Lymphopenia and failure of lymphocytes to mount an early IFN-γ response correlate with increased mortality in COVID-19. Given the essential role of CD4 helper and CD8 cytotoxic cells in eliminating viral pathogens, this profound loss in lymphocytes may impair patients' ability to eliminate the virus. IL-7 is a pleiotropic cytokine that is obligatory for lymphocyte survival and optimal function.

Methods: We conducted a prospective, double-blind, randomized, placebo-controlled trial of CYT107, recombinant human IL-7, in 109 critically ill, patients with lymphopenia who have COVID-19. The primary endpoint was to assess CYT107's effect on lymphocyte recovery with secondary clinical endpoints including …

Air Pollution Exposures In Early Life And Brain Development In Children (Abc): Protocol For A Pregnancy Cohort Study, Sarah Benki-Nugent, Faridah H. Were, Anne M Riederer, Michael Gatari, Cj Karr, Edmund Yw Seto, Beatrice C. Mutai, Susan Wamithi, Brent R. Collett, John Kinuthia

Paediatrics and Child Health, East Africa

Introduction Air pollution is linked with poor neurodevelopment in high-income countries. Comparable data are scant for low-income countries, where exposures are higher. Longitudinal pregnancy cohort studies are optimal for individual exposure assessment during critical windows of brain development and examination of neurodevelopment. This study aims to determine the association between prenatal ambient air pollutant exposure and neurodevelopment in children aged 12, 24 and 36 months through a collaborative, capacity-enriching research partnership.

Methods and analysis This observational cohort study is based in Nairobi, Kenya. Eligibility criteria are singleton pregnancy, no severe pregnancy complications and maternal age 18 to 40 years. At …

Outcomes Of Pregnant Icu Patients With Severe Covid-19 Pneumonia In Qatar During The Three Waves Of The Covid-19 Pandemic: A Retrospective Cohort Study, Layla J.M Kily, Sohel M.G Ahmed, Tamam A.K.M Alhusban, Mohammed J. Orompurath, Marcus Lance, Mogahed I.H Hussein, Salwa M. Abuyaqoub, Huda A. Saleh, Eynas Abdalla, Santhosh Gopalakrishnan

Anaesthesiology, East Africa

Introduction: Pregnant women are considered a high-risk group for COVID-19 infection/pneumonia as they are known to be more vulnerable to viral infections. They require close monitoring and appropriate timely intervention to minimize the impact on both the mother and the fetus. Although the more prevalent Omicron variant led to fewer severe infections and fewer intensive care unit (ICU) admissions globally during the third wave, the effect on pregnant women and pregnancy outcomes was unknown. The vaccination campaign was thoroughly established by the third wave of the pandemic in Qatar. This retrospective descriptive cohort study investigates the characteristics, hospital stay, interventions, …