Digital Commons Network^™

Exploring The Impact Of Mental Health On Childhood Obesity In Southern African American Youth Ages 12-18, Shari Scott Robinson

Walden Dissertations and Doctoral Studies

No abstract provided.

Using The Socio-Ecological Model To Explore Parents' Resilience And Perceptions Of Adverse Childhood Experiences: A Qualitative Study In The Southeastern United States, Maribel G Dominguez, Christine Markham, Andrew E Springer, Louis D Brown

Faculty, Staff and Student Publications

Background: The negative impact of adverse childhood experiences (ACEs) on child development is documented. The parent-child relationship protects against ACEs and improves healthy child development, playing a crucial role in preventing and mitigating ACEs by strengthening parental resilience. However, there is a gap in the literature on our understanding of parental resilience's impact on the parent-child relationship within the social-ecological model (SEM) (i.e., intra- and interpersonal, community, and societal levels). Objective: This study explores parents' perspectives on parental resilience as a protective factor for preventing and mitigating ACEs at every level of the SEM. Method: This study uses a thematic …

In Silico Molecular Docking Study Of Antidiabetic Bioactive Compounds From Brotowali (Tinospora Cordifolia) Targeting Glut4 In Type Ii Diabetes Mellitus, Gita Euaggelion Tarigan, Surya Dwira

Indonesian Journal of Medical Chemistry and Bioinformatics

Type 2 diabetes mellitus (T2DM) is a global metabolic disorder characterized by insulin resistance and impaired glucose uptake. Despite the availability of pharmacological therapies, limitations such as adverse effects and high costs highlight the need for alternative therapeutic candidates. Tinospora cordifolia has been widely reported to contain bioactive compounds with antidiabetic potential; however, comparative evaluation of their interaction with glucose transporter type 4 (GLUT4) remains limited.

This study aimed to identify the most promising bioactive compounds from Tinospora cordifolia targeting GLUT4 using an in silico molecular docking approach, followed by pharmacokinetic and toxicity (ADMET) prediction. Molecular docking was performed using …

Circulating Metabolites Associated With Protection Against Mycobacterium Tuberculosis Infection And Inhibition Of Mycobacterial Growth, Todia P Setiabudiawan, Lika Apriani, Julian Avila-Pacheco, Edwin Ardiansyah, Vinod Kumar, Bachti Alisjahbana, Ayesha J Verrall, Andrew R Dinardo, Agnes R Indrati, Vera P Mourits, L Charlotte J De Bree, Simone J C F M Moorlag, Clary B Clish, Leo A B Joosten, Arjan Van Laarhoven, Krista E Van Meijgaarden, Mihai G Netea, Simone A Joosten, Valerie A C M Koeken, Philip C Hill, Reinout Van Crevel

Faculty, Staff and Students Publications

A significant proportion of individuals who are heavily exposed to infectious tuberculosis patients do not acquire Mycobacterium tuberculosis (Mtb) infection, as detected by an interferon gamma release assay (IGRA). We examined circulating metabolite profiles and metabolic genotypes in 199 heavily exposed IGRA-negative tuberculosis household contacts in Indonesia. Based on differentially abundant metabolites, activity of several pathways including arachidonic acid, arginine and proline, glutathione, and tryptophan metabolism, correlated with a negative IGRA at three months. SNPs near PRODH (involved in arginine and proline metabolism) were associated with circulating proline concentrations and persistently negative IGRA results, while SNPstudys near AFMID (involved in …

Early Chemical Markers Of Spoilage In Thermally Processed Tomato Paste: A Rapid Approach For Shelf-Stable Foods, Hussein Ali Shaghati, Rawia Mahmood Yousif

Al-Nisour Journal for Medical Sciences

This study aims to reduce the incubation period (commercial sterility test) of tomato paste cans before the bacteriological inspection in quality control laboratories. 62 cans of tomato paste were incubated under temperatures (mesophilic 25,37°C and thermophilic 55°C) to accelerate potential spoilage. Chemical indicators(pH, titratable acidity, and lactic acid) and microbial indicators (Total plate count and yeast/molds) were monitored daily to identify the earliest reliable spoilage signals. Incubation at elevated temperatures accelerated acid buildup. D+L lactic acid levels measured using a rapid enzyme assay increased with titratable acidity, while pH decreased. Meanwhile, total platelet counts remained at very low levels, while …

Elucidating The Potential Impact Of Solute Carrier Family2 (Glut4) In Newly Diagnosed Dm-2 Patients, Marwa Ghanim Hashim, Zahra'a Abdul Al-Aziz Yousif, Farah A. Al-Waeely, Raya Khalel Ibrahem

Al-Nisour Journal for Medical Sciences

Background: Diabetes mellitus is a progressive metabolic condition marked by hyperglycemia due to irregularities in insulin production or activity, leading to poor carbohydrate, protein, and fat metabolism. Dysfunctional glucose transporter-4 (GLUT4) activity, characterized by insufficient expression or poor redistribution to the cell membrane, is a critical element in the pathogenesis of type 2 diabetes mellitus (T2DM). This defect limits cellular glucose uptake, leading to energy deficits and elevated blood glucose levels. Objective: What is the clinical diagnostic potential of serum GLUT4 levels in newly identified type 2 diabetic people, and how do these levels correspond with established metabolic parameters? Materials …

Environmental Impact Of Benzo[A]Anthracene Exposure On Liver Biomarkers And Covid-19 Severity: Evaluation Of Combined Clinical And Molecular Modeling, Osamah Alkilidar, Hayder G. Jawad, Hasan K. Nimr

Al-Nisour Journal for Medical Sciences

This study aimed to evaluate the relationship between exposure to environmental pollutants, particularly benzo[a]anthracins (BaA), and the severity of the inflammatory response and liver dysfunction in COVID-19 patients, using a combination of statistical analysis and molecular modeling. Molecular docking studies revealed stable and robust interactions between benzo[a]anthracins and cytochrome P450 (CYP450) enzymes, suggesting that these interactions may contribute to increased oxidative stress and hepatocyte damage. The statistical analysis included 70 COVID-19 patients, stratified by benzo[a] anthracene exposure. The results showed statistically significant associations between exposure to this pollutant and elevated C-reactive protein (CRP) levels, as well as a significant increase …

Evaluation Of Complement Deficiency In Systemic Lupus Erythematosus Patients And Its Effect On Clinical Manifestations And Immunological Markers, Zahra'a Abdul Al-Aziz Yousif

Al-Nisour Journal for Medical Sciences

Background and Aim:\ Systemic Lupus Erythematosus is an autoimmune chronic disease resulting in multi organ damage and impairment of immune response. Complements such as C3 and C4 are considered important in disease progression and often used for disease activity measurements. The purpose of this research is to assess the frequency of complements deficiencies in SLE patients, and identify associations with symptoms and disease severity. Material and Methods:\ This single-center, cross sectional study involved 50 SLE patients classified in to four groups according to their serum C3 and C4 values. Symptoms, signs of disease severity, immunologic indicators [Erythrocyte Sedimentation …

Methyldopa: Chemistry, Structural Modifications, Pharmacological Activities, And Clinical Applications — A Comprehensive Review, Rania Kadhim, Emad Yousif, Suhad Ibrahim, Nany Hairunisa

Al-Nisour Journal for Medical Sciences

Methyldopa (α -methyldopa) is a centrally acting antihypertensive drug that has been extensively prescribed for the management of hypertension, particularly in pregnant women, due to its established safety profile and non-teratogenic nature. Beyond its clinical use, methyldopa has attracted increasing scientific interest because of its unique chemical structure, which contains multiple oxygen- and nitrogen-donor functional groups capable of undergoing structural modification and metal coordination. This comprehensive review highlights the chemical structure of methyldopa, its synthesis pathways, spectroscopic characteristics—particularly FTIR analysis—and its pharmacological mechanisms of action as an α ₂-adrenergic receptor agonist. Special attention is given to methyldopa-induced adverse effects, …

Advantages Of Treatment Pollution By Nanomaterial: Review, Riyam Lateef Khalaf, Ola Abdulkareem Nori

Al-Nisour Journal for Medical Sciences

Pollution remains one of the most pressing global environmental challenges and is increasing day by day, with serious implications for public health and the environment. Among the various approaches to address this issue, nanotechnology has emerged as a promising solution due to its unique properties, such as high surface area, reactivity, and catalytic efficiency. There are four types of pollution that can be treated by nanotechnology, air pollution, soil pollution, water pollution and light pollution. This review studies recent research on the use of nanoparticles for pollution treatment, focusing on the mechanisms through which they degrade pollutants, the diverse applications …

Allopurinol Beyond Hyperuricemia: A Multifaceted Therapeutic Agent With Expanding Clinical, Safa Khaldoon, Emad Yousif, Khawla A. Kasar, Hazim F. Abbas

Al-Nisour Journal for Medical Sciences

Allopurinol is a well-established xanthine oxidase inhibitor widely used in the management of hyperuricemia, gout, tumor lysis syndrome, and uric acid nephrolithiasis. This review provides a comprehensive overview of its pharmacology, mechanism of action, pharmacokinetics, clinical efficacy, safety profile, and emerging insights from recent clinical and translational studies. Despite being in clinical use for over five decades, allopurinol remains the first-line urate-lowering therapy worldwide due to its proven efficacy, favorable safety profile, and cost-effectiveness. Beyond its classical role in inhibiting xanthine oxidoreductase, increasing evidence highlights additional therapeutic effects, including antioxidant and anti-inflammatory activities. The structural similarity of allopurinol to purine …

The Ramification Of Mutations In Sonic Hedgehog Gene On The Occurrence Of Deformities In The Course Of The Embryonic Development Stage, Umalbaneen Hilal Hadi, Safa J. Al-Yassiri

Al-Nisour Journal for Medical Sciences

Sonic Hedgehog (SHH) is one of the most significant genes regulating embryonic development in mammals, playing a pivotal role in cell differentiation, tissue fate determination, and regulating lateral symmetry of the embryo. The results of this research show that any mutation whether, a loss of function or a change in the regulation of gene expression in SHH gene leads to severe and highly complex consequences for embryonic development.as a result for that, severe disorders of CNS development SHH is a morphogen essential for germline formation and neuronal differentiation. Mutations in this gene result in failure to develop properly the cerebellum, …

Effect Of Different Methods Of Smoking On Serum Level Of Vitamin D Among University Students In Baghdad, Sabiha Aljubory, Usama Salman Altimari

Al-Nisour Journal for Medical Sciences

Vitamin D has different biological actions in the body. Vitamin D has pleiotropic effects in multiple organ systems. Vitamin D deficiency has been found to have an inverse relationship with tobacco smoking. The objective of this study was to identify the prevalence of Vitamin D level and its correlates with tobacco smoking among University student male and female. Volunteer was conducted on a sample of university student, both males and females Iraq, during the period from January to December 2020. A pretested questionnaire was used for data collection adopted from previous standard national surveys and studies, and the questionnaire included …

Beyond Stabilization: Biological Healing, Structural Exclusion, And The Recovery Gap After Border-Fall Trauma At The U.S.-Mexico Border, Julia Robinson

Undergraduate Honors Theses

This honors thesis examines the biochemical, ethical, and public health consequences of insufficient post-operative follow-up care for undocumented immigrants injured in border falls. Discussing pathways of inflammation resolution, wound healing, and bone remodeling, this thesis argues that recovery depends on tightly regulated molecular and cellular processes that are highly vulnerable to disruption without continued monitoring and rehabilitation (Loi et al., 2016; Maruyama et al., 2020). When follow-up care is absent, these processes can be predicted to derail, leading to infection, impaired healing, and permanent disability (Chung & Sohn, 2025; Howard et al., 2020; Kruidenier et al., 2018). Framed through principles …

Exceptional Response Of Radiotherapy-Naïve Cranial Meningiomas To Dual Immune Checkpoint Blockade In Bap1 Tumor Predisposition Syndrome, Gary Gallia, Christine Hann, Calixto-Hope Lucas, Licia Pacheco Luna, David Kamson, Takami Sato

Department of Medical Oncology Faculty Papers

Meningiomas are the most common primary central nervous system tumors, and while most are benign, atypical and anaplastic variants frequently recur and have limited effective treatment options. Recent trials of PD-1 blockade in unselected meningioma cohorts have demonstrated modest activity, with low objective response rates. These findings highlight the need to identify molecular biomarkers that may predict immunotherapy sensitivity in this disease. BRCA1-associated protein 1 (BAP1) is a tumor suppressor critical for chromatin regulation and DNA repair, and germline pathogenic variants cause BAP1 tumor predisposition syndrome (BAP1-TPDS), a hereditary cancer syndrome characterized by uveal melanoma, mesothelioma, renal cell carcinoma, meningioma, …

Mitochondrial Ca2+ Uniporter (Mcu) Variants Form Plasma-Membrane Channels, Iuliia Polina, Jyotsna Mishra, Michael Cypress, Maria Landherr, Nedyalka Valkov, Isabel Chaput, Bridget Nieto, Brian Rhee, Ameneh Ahrari, Nathan Demichaelis, Kye-Im Jeon, Ulrike Mende, Peng Zhang, Bong Sook Jhun, Jin O-Uchi

Center for Translational Medicine Faculty Papers

MCU, originally known as CCDC109A, is widely recognized as the gene responsible for encoding a pore-forming subunit of a Ca2+-selective channel, mitochondrial Ca2+ uniporter complex (mtCUC). While MCU expression is typically highly mitochondrial-specific, we report here a protein variant derived from the MCU gene, termed MCU-S, which lacks the mitochondria-targeting sequence (MTS) and forms a Ca2+-permeable channel outside of mitochondria. The mRNA of MCU-S was ubiquitously expressed in all cell types/tissues tested, with particularly high expression in human platelets. MCU-S protein formed Ca2+ channels at the plasma membrane, which exhibited similar channel properties to those observed in mtCUC. MCU-S channels …

Symmetrical Drug-Related Intertriginous And Flexural Exanthema Associated With Tirzepatide, William Goodman, Karan Pandher, Mahaa Ayub

Department of Dermatology and Cutaneous Biology Faculty Papers

No abstract provided.

Determinants Of Pre-Exposure Prophylaxis Medication Use Among People Aged 18–29 Years Living In Florida, Jeremiah Magraubin Mchaka Wandabwa

Walden Dissertations and Doctoral Studies

No abstract provided.

The Relationship Between Mentorship And Career Longevity For New Clinicians In Emergency Medical Services, Katherine Elizabeth Contreras

Doctoral Dissertations and Projects

The purpose of this qualitative descriptive phenomenological study was to understand how mentorship assisted a new Emergency Medical Services (EMS) clinician in navigating the challenges of the first year at an EMS agency in Central Texas. Guiding the study was Lev Vygotsky’s theory of social constructivism, which focuses on knowledge gained through human activities, social interactions, and behavior modeling. Twelve study participants completed one-on-one interviews, two participants completed a single focus group interview, and the researcher conducted naturalistic observations, during which the participants shared personal, firsthand experiences that answered the study’s central research question: How does mentorship help new EMS …

Examining The Link Between Adenomas And Early-Onset Colorectal Cancer In Adults Aged 20–44, Ijeoma F. Erondu

Doctoral Dissertations and Projects

Early-onset colorectal cancer (EOCRC) has increased among adults younger than 50 years, raising concerns regarding risk identification and screening practices in younger populations. This study examined the association between colorectal adenomas and EOCRC among adults aged 20–44 years in the United States and evaluated whether this relationship was influenced by selected demographic and behavioral factors. A cross-sectional analytic design was used to examine medical claims data from the Optum Partner Health database. The study population included 186,790 individuals aged 20–44 years who underwent colonoscopy procedures. Demographic variables included age group, sex, race/ethnicity, and body mass index (BMI). Smoking status was …

Brain-Wide Structural Markers Of Familial And Clinical Risk For Bipolar Disorder In Youth, Danella M Hafeman, Jamie Feldman, John Merranko, Mary L Phillips, Boris Birmaher, Si Gao, Yizhou Ma, Peter Kochunov

Faculty, Staff and Student Publications

Background: Bipolar Disorder (BD) is a severe mental illness, often emerging during adolescence, that is associated with significant psychosocial impairment. BD risk is elevated in offspring of affected parents, particularly those with antecedent symptoms (e.g., mood lability, subthreshold manic symptoms). However, robust, replicable brain-based markers of risk in this population are lacking. We assessed the degree to which the Regional Vulnerability Index for BD (RVI-BD), quantified as an individual's brain-wide similarity to BD patterns derived from meta-analytic studies, is elevated in youth at familial risk and correlates with symptom predictors of BD.

Methods: We recruited n=82 adolescents (10-15 years old), …

Perceptions Of The Effects Of Launch Control Center Environmental Exposures And Alert Schedules Among Missile Operations Officers: A Mixed Methods Phenomenological Study, Dawnie Rae Ramie

Doctoral Dissertations and Projects

This mixed methods hermeneutic phenomenological study focused on an investigation of the perceptions of missile operations alert duty and the effects on health and sleep hygiene among Air Force missile operations officers. Questionnaires, interviews, and surveys were all used to gather data on subjects’ experiences and perspectives, including methods to mitigate the effects of poor sleep. Driving questions of research included how missile alert schedules affect sleep habits, as well as how missileers perceived alert duties may impact their health. Data was collected through a web-based Qualtrics Likert questionnaire (N=139), open-ended interviews with purposively selected subjects (N=17), and web-based Qualtrics …

Inadequate Access To Healthcare In Low-Income Hispanic Communities In Brooklyn, Joanna Marie Garcia

Doctoral Dissertations and Projects

The purpose of this qualitative research was to understand healthcare disparities using the Solar and Irwin conceptual framework and to shed light on healthcare disparities as the reason low-income Hispanic patients, male and female, from the ages of 20-90 in Brooklyn, New York, received inadequate access to healthcare. Healthcare disparities represented a critical issue in providing adequate patient care for adult Hispanic patients within the United States healthcare system. Research into healthcare disparities has been conducted; however, detailed information about the causes of the disparities was lacking, especially concerning inadequate access to healthcare in low-income Hispanic communities. This qualitative research …

Factors Associated With Vaping Frequency Among University Students, Oluwatosin Marylyn Oduneye

Masters Theses

Electronic cigarette use among university students is a growing public health concern, with approximately 20-25% reporting current use. Despite extensive research on vaping initiation, factors associated with vaping frequency among established users remain understudied. This study examined stress-coping mechanisms, peer influence, and health risk perceptions as predictors of vaping frequency, guided by Bandura's Social Cognitive Theory (SCT). A quantitative cross-sectional survey was administered via Microsoft Forms to 399 university students aged 21-25 with recent vaping experience, recruited nationally through campus flyers and online platforms. Multiple linear regression was conducted in SAS OnDemand for Academics, with stress-coping, peer influence, and health …

Phkg2 Confers Resistance Of Escc To Cisplatin And Enhances Cxcl8-Dependent Immunosuppression To Exacerbate Tumorigenesis, Jiayan Wu, Chengrui Zhong, Haosheng Zheng, Fei Qin, Xianyu Qin, Yuzhen Zheng, Junguo Chen, Gengfeng Wang, Bozhu Jian, Zui Liu, Xingping Yang, Chao Cheng, Guolin Li, Hongying Liao

Faculty, Staff and Students Publications

Cisplatin (DDP)-based chemotherapy serves as a foundational cornerstone in the clinical management of esophageal squamous cell carcinoma (ESCC). However, intrinsic or acquired resistance to DDP persists as a significant clinical challenge, severely undermining therapeutic efficacy and contributing to unfavorable patient prognoses. Through functional screening with a CRISPR/Cas9 knockout library, transcriptomic profiling of cisplatin-resistant cell lines and clinical specimens, and in vitro/in vivo validation assays, we identified PHKG2 as a key mediator of cisplatin resistance in ESCC. Mechanistically, PHKG2-mediated cisplatin resistance is driven by the phosphorylation of IGF2BP3 at residues T225 and T306. This post-translational modification enhances IGF2BP3 phase separation, thereby …

Movement-Stabilized Three-Dimensional Optical Recordings Of Membrane Potential Changes And Calcium Dynamics In Hippocampal Ca1 Dendrites, Kevin C Gonzalez, Satoshi Terada, Asako Noguchi, George N Zakka, Cliodhna O'Toole, Giuliana Bilbao, Luke Reynolds, Anna Jász, Borbála Kertész, Zoltán Szadai, Alissa Shen, François St-Pierre, Franck Polleux, Attila Losonczy, Balázs Rózsa

Faculty, Staff and Students Publications

Local dendritic computations are thought to critically influence neuronal signaling and plasticity yet remain largely unexplored in vivo due to challenges in stably imaging small structures at ultrafast timescales. We developed a 3D real-time motion correction platform for movement-stabilized, ultrafast two-photon voltage imaging. By co-labeling CA1 pyramidal neurons with voltage and calcium indicators, we simultaneously measured somato-dendritic and electro-calcium coupling at multiple dendritic sites. We characterized isolated dendritic spikes and distance-dependent backpropagation of naturally occurring and photostimulation-evoked bursts and single spikes. We found that bursts backpropagated more reliably than single spikes, validated that somato-dendritic coupling decreases with distance from soma, …

Comparative Hematological And Biochemical Alterations Associated With Gram-Negative Bacterial Infections Of Lower Urinary Tract In Dogs And Cats, Mohamed Alasmar, Maged El-Ashker, Mohammed Albaloushi, Mayyadah Alkuwayti, Mohamed Marzok

The Thai Journal of Veterinary Medicine

The aim of this study was to investigate hematological and biochemical alterations associated with gram-negative bacterial lower urinary tract infections (UTIs) in dogs and cats. For this purpose, 56 dogs and 36 cats were examined between October 2022 and May 2023. Twenty-eight dogs and twenty-two cats with clinical signs of lower UTIs were confirmed using ultrasonography, urinalysis, hematobiochemical analysis, and molecular identification of recovered pathogen. In dogs, UTIs were significantly associated with pyuria (82%), crystalluria (85.7%), and proteinuria. There was also significant decrease in total protein and globulin levels compared to those in the control. A significant increase in BUN, …

Hantaviruses As Priority Zoonotic Diseases: A Comprehensive Review, Wimbuh Tri Widodo, Aswin Rafif Khairullah, Rahmania Ambarika, Widoretno Widoretno, Masri Sembiring Maha, Abdul Hadi Furqoni, Lisa Andriani Lienggonegoro, Bima Putra Pratama, M. Hasinuddin, Zakkiyatus Zainiyah, Eny Susanti, Mufarika Mufarika, Luluk Hermawati, Alvina Setiawardani, Syahputra Wibowo, Arif Nur Muhammad Ansori

The Thai Journal of Veterinary Medicine

Hantaviruses are zoonotic agents that play a significant role in global public health, primarily due to their ability to cause two highly severe clinical syndromes: Hemorrhagic Fever with Renal Syndrome (HFRS), which is predominant in Eurasia, and Hantavirus Cardiopulmonary Syndrome (HCPS/HPS), which is primarily found in the Americas. Although long recognized, the complex interactions between the virus, its rodent reservoir, and environmental factors make hantaviruses still a relevant epidemiological threat today. This review aims to provide a comprehensive overview of their virological characteristics, epidemiological patterns, pathogenesis mechanisms, risk factors, diagnostic methods, therapeutic options, prevention strategies, and the latest developments in …

Chronotropic Response To Intratracheal Versus Intravenous Atropine In Anesthetized Adult Patients: A Randomized Controlled Trial, Ammar H. Mahdi, Majid Alhamaidah, Myasar J. Mohammed, Hussein Ali Hussein, Hussein Alkhfaji

AUIQ Complementary Biological System

Atropine is a commonly used anticholinergic agent in anesthetic practice, administered primarily to counteract bradycardia. Rapid treatment of intraoperative bradycardia is clinically critical, as delays may lead to hemodynamic compromise. This study aimed to compare the onset, magnitude, and duration of the chronotropic response to atropine administered via the intravenous (IV) versus intratracheal (IT) route in anesthetized adult patients. A prospective, single-blind, randomized controlled study was conducted on 60 adult patients classified as American Society of Anesthesiologists (ASA) physical status I-II, scheduled for elective peripheral surgery under general anesthesia. Patients were randomly allocated into three equal groups (n = 20 …

Sex-Biased Intratumoral Microbiome Influences Tumor Molecular And Immune Landscape And Disease Outcomes, Yuting Shan, Yingbo Huang, Adam Lee, Radwa M. Elmorsi, Tuyen Phan, Indrajit Chaudhury, Tom Corbiere, Lindsey B. Collins, Elizabeth B. Hirsch, Benjamin A. Weinberg, Jennifer M. Johnson, Emmanuel S. Antonarakis, Emil Lou, R. Stephanie Huang

Department of Otolaryngology - Head and Neck Surgery Faculty Papers

The intratumoral microbiome is increasingly recognized as a regulator of cancer biology, yet sex-specific patterns and their relevance to cancer disparities remain poorly understood. We perform a multi-kingdom analysis of more than 5,000 tumors from seven datasets to identify sex-differential microbial taxa across aerodigestive and gastrointestinal cancers. We identify and validate 22 taxa with consistent sex-biased abundance, including in real-world cohort. These microbes show cancer-type- and microbe-specific associations with tumor transcriptomes, oncogenic pathways, and immune cell infiltration. Female-enriched microbes are linked to increased estrogen signaling and interferon responses, whereas male-enriched taxa show opposing patterns. In gastric cancer, intratumoral Epstein-Barr virus …