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Bio 252/254: Genetics Fall 2026, Brian White

OER Textbooks

Bio 252/254 Genetics Fall 2026

This work was created by UMass Boston Professor Brian White using the support and funding from the OER Faculty Incentive Grant Program. This book is also available on LibreTexts, and can be viewed at this link: https://bio.libretexts.org/Courses/University_of_Massachusetts_Boston/Bio_252_254%3A_Genetics

Table of Contents:

• Front Matter (opens in new tab)
• 1: SPOC I - DNA and Chromosome Structure (opens in new tab)
• 2: SPOC II- Genomes (opens in new tab)
• 3: SPOC III - Mitosis and Meiosis (opens in new tab)
• 4: SPOC IV - DNA Replication (opens in new tab)
• 5: SPOC V - Transcription and mRNA Processing …

Sensors And Smart Food Packaging For Supply Chains: Bridging Expiration Dates And Actual Perishability, Muhammad Umar Azam, Jolina Rodrigues, Mohamed Hamid Salim, Sarath Haridas Kaniyamparambil, Khalid Askar, Imane Belyamani, Blaise L. Tardy, Nouha Alcheikh

All Works

The food supply chain is undergoing critical changes to minimize environmental hazards, such as those associated with packaging, and reduce food waste and loss. One of the critical components of the latter is associated with the high variance in the perishability of individual foodstuffs. Herein, we review the state of the art in smart sensor systems and emphasize the critical role they could play in addressing the mismatch between “batch” based expiry dates and individual food products’ time-dependent responses to spoilage. Following a brief overview of food shelf life and associated legislation, a subsequent section summarizes the development of sensors …

Blue Carbon Ecosystems As Climate Solutions: Sequestration Across Coastal And Marine Environments, Allison K. White, Richard J. Kline, Md. Saydur Rahman

School of Earth, Environmental, & Marine Sciences Faculty Publications

Blue carbon ecosystems (BCEs) such as mangroves, salt marshes, and seagrasses, sequester significant amounts of CO2 from the atmosphere. These ecosystems capture and store carbon in biomass and sediments over long periods. Other marine ecosystems, including the open ocean, kelp forests, bivalve reefs, and coral reefs, have been excluded from the BCEs, but they have the potential to serve as crucial blue carbon sinks or to support adjacent BCEs. Climate change, however, poses severe threats to these ecosystems. Rising sea levels, increasing temperatures, and ocean acidification can lead to habitat loss, reduced biodiversity, and impaired carbon sequestration capacity. Consequently, anthropogenic …

A Review Of Natural Hydrogen Generation From Iron-Rich Rocks: Mechanisms, Influencing Factors, Techniques, And Knowledge Gaps, Kaveh Moghanirahimi, Lionel Esteban, Marina Pervukhina, Muhammad Arif, Stefan Iglauer, Alireza Keshavarz

Research outputs 2022 to 2026

Natural hydrogen has emerged as a promising clean energy resource with significant potential for large-scale subsurface production. Among the various geological sources, water–rock interactions involving iron-bearing rocks are among the most extensively studied pathways for natural hydrogen generation. This study provides a comprehensive review of hydrogen production from iron-rich lithologies, including mafic and ultramafic rocks, iron oxides, iron carbonates, and peralkaline granites. The fundamental mechanism involves the reduction of water coupled with the oxidation of ferrous iron to ferric iron under anoxic conditions. Key processes, including serpentinization, magnetite alteration, and siderite decomposition, are critically evaluated using experimental and modelling data. …

Nanoparticle-Enabled Superplasticity In Extruded Az91 Magnesium Alloy With Elongation Exceeding 600%, Bai Xin Dong, Hong Yu Yang, Xin Zhang, Feng Qiu, Qi Chuan Jiang, Lai Chang Zhang

Research outputs 2022 to 2026

No abstract provided.

Risks Of Mercury Release From Disturbance Of Blue Carbon Ecosystems, Fan Zhang, Jingrou Hu, Ana Carolina Ruiz-Fernández, Christian J. Sanders, Xinxin Li, Ruotong Chen, Kunshan Bao, Bigyan Neupane, Aidah Baloch, Yanhui Zheng, Oscar Serrano

Research outputs 2022 to 2026

Blue carbon ecosystems (BCEs) function as dual repositories of organic carbon and legacy contaminants. While BCEs are recognized carbon sinks, their role as mercury (Hg) sinks and the risk of their conversion into sources due to human and climatic disturbances remain unexplored. This review synthesizes current knowledge on the drivers and risks of contaminant remobilization from threatened BCEs, with a primary focus on mercury. We explore how natural and human disturbances influence Hg storage, release, and bioavailability, while evaluating the risks posed to ecosystems and human health. Through a three-level meta-analysis, we show that physical disturbance remobilizes approximately 54% (95% …

Burden Of Disease In Us Patients With Skeletal Versus Muscular Or Pain Manifestations Of Hypophosphatasia: An Analysis From The Global Hpp Registry., Priya S. Kishnani, Steven Ing, Julie Hoover-Fong, J Carl Pallais, Angie Voskopoja, Shona Fang, William R Mowrey, Eric Rush, Kathryn Dahir

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Hypophosphatasia (HPP) is a metabolic disorder characterized by deficient alkaline phosphatase (ALP) activity, defective mineralization of bones and teeth, and non-skeletal manifestations. We compared disease burden between patients with skeletal and non-skeletal manifestations.

METHODS: Data from US adults enrolled in the Global HPP Registry through July 2024 were analyzed to compare baseline characteristics, genetic testing results, functional outcomes, and patient-reported outcomes between participants with and without overt skeletal manifestations. Patients who had only dental manifestations were excluded.

RESULTS: Of 283 participants, 234 (82.7%) had skeletal manifestations (79.1% female; 89.3% White; median age 48.7 years) and 49 (17.3%) had only …

The Epidemiology Of Kidney And Urinary Tract Infections In Pediatric Chronic Kidney Disease: Prevalence, Risk Factors And Association With Gfr Decline In The Chronic Kidney Disease In Children Study., Derek K. Ng, Andrea R. Molino, Siyao Zhang, Emily J. Stonebrook, Craig S. Wong, Pratyush Gyawali, Kimberly J. Reidy, Susan L. Furth, Bradley A. Warady, Jeffrey J. Fadrowski, Ckid Study Investigators

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Urinary tract and kidney infections are potential complications in pediatric chronic kidney disease (CKD), especially among patients with congenital anomalies of the kidney and urinary tract (CAKUT). We characterized the prevalence of self-reported infections from childhood through young adulthood; evaluated risk factors; and quantified the association with CKD progression.

METHODS: Infections in the past year were self-reported at annual Chronic Kidney Disease in Children (CKiD) study visits. Age-specific infection prevalences were stratified by sex and CKD diagnoses (glomerular, non-glomerular non-CAKUT, CAKUT low-risk for infections, and three CAKUT high-risk categories: reflux nephropathy, obstructive uropathy, and other high-risk). Repeated measures logistic …

Streamlining Diagnosis Of Bardet-Biedl Syndrome: New Diagnostic Algorithm With Updated Criteria., Jeremy J. Pomeroy, Jesse Richards, Brooke Sweeney, Seema Kumar, Katie E. Queen, Joshua Zaritsky, Carl H. Cramer, Elias I. Traboulsi, Brittni A. Scruggs, Erica E. Davis, Ekaterina Keifer, Emma Mcgibbon, Timothy Ogden, Bendert De Graaf, Tonia Hymers, Elizabeth Forsythe, Philip Beales

Manuscripts, Articles, Book Chapters and Other Papers

Considerable advances have been made in our understanding of Bardet-Biedl syndrome (BBS), particularly in its core clinical features and molecular genetics, warranting an update to the existing diagnostic criteria framework. Using a rigorous, evidence-based, and consensus-driven process, a multidisciplinary group of international experts and patient-led organizations developed an updated diagnostic algorithm. This algorithm provides practical, updated guidance for clinicians, including a pathway for accurately incorporating genetic findings into the diagnostic process. We recommend that a clinical diagnosis requires either 4 major criteria or 3 major and 2 minor criteria. Revised major criteria are retinal dystrophy, obesity (or overweight in individuals <  2 years old), congenital anomalies of the kidney and urinary tract or chronic kidney disease, hypogonadism/genital anomalies, neurodevelopmental/neurocognitive manifestations, and postaxial polydactyly. The diagnosis can also be established with a positive genetic testing result in patients exhibiting ≥ 1 major criterion, provided that genetic findings should be interpreted in the context of the patient's clinical presentation, age, family history, and overlap with related ciliopathies. These consensus criteria offer a simple algorithm incorporating updated definitions for major and minor criteria and genetic testing to support a timely and accurate diagnosis of patients with BBS, inform genetic counseling, and potentially facilitate earlier access to treatment. Trial Registration: CRIBBS Registry; ClinicalTrials.gov: NCT02329210.

Faculty Authors & Achievers Bibliography 2026, Luke Vilelle

WRL: Faculty Authors & Achievers Bibliographies

The office of Academic Affairs and the Wyndham Robertson Library congratulate all Hollins faculty who published or presented creative or scholarly works from Fall 2024 - Fall 2026. These pages comprise a list of that work.

The Paleoceanography Of The Jurassic Western Interior Seaway, Richard Reynolds, Rhodri Jerrett, Marc Davies, Uwe Balthasar, Gregory Price

Faculty of Science and Engineering Datasets

Supplimentry material for the paper: The Paleoceanography of the Jurassic Western Interior Seaway

Paleoenvironmental Fluctuations Across The Mid-Late Jurassic, Western Canadian Sedimentary Basin, Richard Reynolds, Terry Poulton, Rhodri Jerrett, Marc Davies, Gregory Price

Faculty of Science and Engineering Datasets

Supplimentry material for the paper: Paleoenvironmental fluctuations across the Mid-Late Jurassic, Western Canadian Sedimentary Basin

Hydrothermal Bond Reordering Recorded In Jurassic Belemnites And Oysters From The Swift Formation, Montana, Usa, Richard Reynolds, Jessica Berry, Rhodri Jerrett, Marc Davies, Alina Marca, Richmal Paxton, Gregory Price

Faculty of Science and Engineering Datasets

Supplimentry material for the paper: Hydrothermal Bond Reordering Recorded in Jurassic Belemnites and Oysters from the Swift Formation, Montana, USA

Recognizing The Azygos Lobe: A Case Series Detailing Presentations And Clinical Implications, Salma Alkhatib, Diego Marin

Student Publications

Discovery of an azygos lobe is an infrequently encountered anomaly that can be recognized on chest imaging, occurring in approximately 1.2% of patients. The azygos lobe is formed from abnormal migration of the azygos vein, leading to the formation of an azygos fissure and corresponding azygos lobe. This variant is asymptomatic, however, it has clinical implications because of its ability to be mistaken as various pulmonary pathologies. Recognition of this rare finding is essential to prevent misdiagnosis, and to avoid complications during thoracic procedures such as vascular injury. This case series details 3 presentations of an incidental azygos lobe, identifying …

Ceftaroline Pharmacokinetics On Ecmo, A Pediatric Case Report., Kathryn Pavia, Ashton Bellamy, Alaina Burns, Allison Scott, Ethan A. Poweleit

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: In-vitro studies suggest that patients on extracorporeal membrane oxygenation (ECMO) may struggle to achieve therapeutic ceftaroline exposure to treat infections due to antibiotic sequestration within the ECMO oxygenator; however, there are no published data regarding ceftaroline concentrations from patients supported by ECMO.

PATIENT PRESENTATION: Here we present an analysis of ceftaroline pharmacokinetics in a 5-y-old patient supported on ECMO due to influenza-associated necrotizing pneumonia.

RESULTS: A total of nine concentrations were analyzed, including three concentrations prior to cannulation and six on ECMO. ECMO cannulation was associated with a relatively small change in the volume of distribution (0.17 L/kg to …

Ambulatory Blood Pressure Thresholds And Left Ventricular Hypertrophy In Children Aged 6-12 Years: A Pediatric Nephrology Research Consortium Study., Afsana Jahan, Matthew Schuchman, Mahie Abdullah, Meghan Mclaughlin, Emilia Maria Cadiz, Eshanika Manchanda, Aftab Chishti, Maggie Murphy, Sarah Twichell, Alexandra Mazo, Dmitry Samsonov, Aesha Maniar, Hannah Kim, Francis Lomanta, Ashok Chakravarthy Patibandla, Rachel Frank, Tarak Srivastava, Ikuyo Yamaguchi, Christine Sethna

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: To evaluate the diagnostic performance of ambulatory blood pressure monitoring (ABPM) thresholds for predicting left ventricular hypertrophy (LVH) in children aged 6-12 years.

STUDY DESIGN: A retrospective, multicenter study was conducted across 11 Pediatric Nephrology Research Consortium sites and included children aged 6-12 years who underwent ABPM and 2-dimensional echocardiography for diagnostic assessment of elevated BP. The diagnostic accuracy of fixed ABPM thresholds and the current 95th percentile for sex and height were assessed using area under the receiver operating characteristic, sensitivity, specificity, and Youden index. Multivariable logistic regression models, adjusted for age, sex, and body mass index z-score, …

Peritoneal Dialysis Catheter Complications In Neonates With Kidney Failure., Shannon Reinert, Maanasa Yarlagadda, Alexander Bondoc, Donna Claes, Stefanie Riddle, Meredith P. Schuh

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Neonates with kidney failure require placement of a peritoneal dialysis catheter (PD-C) shortly after birth. PD-C malfunction and peritonitis, both common in this population, are associated with PD failure. The aim of this study was to describe our center's PD-C-related practices and outcomes in neonates with kidney failure.

METHODS: We performed a retrospective chart review of neonates who required kidney replacement therapy (KRT) within the first 30 days of life from 01/2018-12/2023. We evaluated for PD-C duration, PD-C replacement or revision, and peritonitis.

RESULTS: Twenty-four neonates had PD-C placed for chronic dialysis at a median of 9.7 days and …

First Evaluation Of Contrast-Enhanced Micro-Xct As A Tool For Organismal And Reproductive Trait Observations In Corals Based On Scans Of Thesea Nivea Deichmann, 1936, Erin E. Easton

School of Earth, Environmental, & Marine Sciences Faculty Publications

Micro-X-ray computed tomography (micro-XCT) with contrast enhancement is considered a non-destructive tool that is increasingly being applied to explore the internal and external structures of vertebrates and invertebrates. Although micro-XCT has been applied to corals to study skeletal features, contrast enhancement has not been applied to evaluate the utility for visualization of soft tissue structures in corals. This study is the first to evaluate the utility of contrast enhancement to visualize internal and external features, including soft tissue features, of octocorals. Contrast staining of a Thesea nivea specimen with 2.5% Lugol's iodine permitted visualization of soft tissues with sufficient density …

Decoding Surface Chemistry Effects On Polystyrene Nanoplastic Fouling In Plasma-Grafted Pes Membranes With Distinct Functional Groups, Mohadeseh Najafi, Javad Farahbakhsh, Ebrahim Mahmoudi, Michael Johns, Masoumeh Zargar

Research outputs 2022 to 2026

Nanoplastic (NP) fouling remains a key challenge for ultrafiltration (UF) membranes, yet systematic, controlled comparisons of how membrane functional groups govern NP-membrane interactions are still limited. Here, the role of membrane surface chemistry was systematically investigated using a controlled comparative framework based on plasma-grafted polyethersulfone (PES) UF membranes tailored with structurally comparable methacrylate monomers bearing distinct terminal functionalities, including mono-2-(methacryloyloxy)ethyl succinate (MMES, -COOH), N-[3-(dimethylamino)propyl] methacrylamide (DMAPMA, -N(CH3)2), and [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide (SBMA, zwitterionic). Comprehensive characterisations supported successful surface grafting while preserving the membrane substructure. Fouling and separation were assessed using polystyrene (PS) NPs having different surface chemistries, i.e., PS, PS-COOH and …

Numerically Evaluating The Effect Of Pin Geometries On Interlayer Material Mixing And Thermo-Mechanical Characteristics During Additive Friction Stir Deposition (Afsd), Numan Habib, Ana Vafadar, Ferdinando Guzzomi

Research outputs 2022 to 2026

Additive Friction Stir Deposition (AFSD) is an additive manufacturing technique used to fabricate large-sized components layer-by-layer in a solid state, below the melting temperature. Poor interlayer mixing between subsequent layers results in a lack of mechanical interlocking, leading to low-strength components. The role of pin design plays a crucial role in fabricating high-strength components, requiring a comprehensive understanding of thermo-mechanical behaviour and flow pattern in the deposition zone. In this study, five different pin geometries are presented and investigated using a three-dimensional (3D) computational fluid dynamics (CFD) model. A user-defined function (UDF) was used to calculate strain- and temperature-dependent viscosity. …

Recommendations From Health Research For Children And Adolescents Living In The Kimberley Region Of Western Australia: A Scoping Review, Lisa Cannon, Elizabeth J. Elliott, Andrew Dossetor, Tracey W. Tsang, Md Irteja Islam, Alexandra L. Martiniuk, Habiba Naanai, Tuguy Esgin, Emily Carter, Lauren J. Rice

Research outputs 2022 to 2026

Background: Aboriginal leaders in Western Australia’s Kimberley region have voiced concern that research conducted on their lands is not being adequately used to inform meaningful change. Objective: This scoping review, grounded in an Aboriginal-academic partnership, identifies the child and adolescent health-related research conducted in the region and summarises the authors’ recommendations for knowledge translation. Methods: Drawing on PRISMA-ScR guidelines, we conducted a comprehensive search of multiple databases for publications between January 1967 and June 2025, focusing on children aged ≤ 18 years. Data extraction was conducted using Covidence, and publications were categorised based on the International Classification of Diseases (11th …

Adjunctive Middle Meningeal Artery Embolization After Surgical Evacuation Of Chronic Subdural Hematoma: An Updated Meta-Analysis Of Randomized Controlled Trials, Tallal M. Hashmi, Hafsa Arshad Azam Raja, Zain Tariq, Faizan Ahmed, Niraj Arora, Majid T. Aized, Adeel Saleemi, Ameer E. Hassan, Adnan Qureshi, Osama O. Zaidat

School of Medicine Publications

Background: Middle meningeal artery embolization (MMAE) has emerged as a promising adjunctive treatment for chronic subdural hematoma (cSDH); however, the efficacy and safety of adjunctive MMAE compared with surgery alone remains uncertain.

Methods: We systematically searched PubMed, Embase, and the Cochrane Central Register of Controlled Trials from inception through June 2026. Randomized controlled trials comparing adjunctive MMAE plus surgical evacuation with surgical evacuation alone in patients with cSDH were included. The primary outcome was hematoma recurrence. Pooled odds ratios (ORs) with 95% CIs were calculated using a random-effects model.

Results: A total of eight randomized controlled trials were included. The …

Learning Opportunities 2026/2027, Illinois Math And Science Academy

Course Catalogs

The graduation requirements of the Illinois Mathematics and Science Academy are established by the IMSA Board of Trustees. Each semester, students must take a minimum of five academic courses (2.5 credits) for a letter grade (not Pass/Fail), not including Fine Arts or Wellness courses. Students may enroll in a maximum of eight academic opportunities each semester, including academic courses, Fine Arts and Wellness courses, and Experiential programs. The College and Academic Counselor approves enrollment for students in all courses and experiences.

Swk 200: Introduction To Social Work Syllabus, Samantha Norris

Open Educational Resources

This Open Educational Resources (OER) syllabus was created for Introduction to Social Work (SWK 200) at the College of Staten Island, thanks to support from the CUNY Graduate Center’s Open Knowledge Fellowship.

The focus of SWK 200 is on introducing students to the profession of social work. This course examines the profession of social work, its value base, areas of practice, and societal role. Major social problems; philosophies of social welfare, provision, program and policy initiatives; and the response of social work as a profession are addressed. The obligation of professional social workers to promote social and economic justice on …

Intl 30800: Research Methods For International And Global Studies, Eliza Marks

Open Educational Resources

This syllabus was developed for INTL 30800: Research Methods in International and Global Studies at City College of New York (CCNY). This project-based course introduces International and Global Studies students to research methods, with a focus on how social scientists formulate questions, design and carry out research, and interpret evidence. The course is designated Zero Textbook Cost (ZTC).

Quantum Mechanics, Non-Locality, And The Space Discreteness Hypothesis, Wilson A. Zuniga-Galindo

School of Mathematical & Statistical Sciences Faculty Publications

The space discreteness hypothesis asserts that the nature of space at short distances is radically different from that at large distances. Based on the Bronstein inequality, here, we use a totally disconnected topological space X as a model for the physical space at short distances. However, we consider the time as a real variable. In this framework, the Dirac–von Neumann formalism can be used. This discreteness hypothesis implies that given two different points in space, there is no continuous curve (a world line) joining them. Consequently, this hypothesis is not compatible with the theory of relativity. We propose R×(R×X)3 as …

Study Of A Nonlinear Delayed Parabolic Model For Prion Disease Dynamics With The Unfolded Protein Response, Gangadhara Boregowda, Laurent Pujo-Menjouet, Zhaosheng Feng, Michael R. Lindstrom

School of Mathematical & Statistical Sciences Faculty Publications

Prion diseases are neurodegenerative disorders characterized by the dynamic spread of misfolded toxic proteins in the brain. In this process, the normal cellular prion protein (PrPC) produced by neurons misfolds into a toxic form known as scrapie prion protein (PrPSc). These misfolded proteins propagate through the brain by converting healthy prions into their toxic form. This biological mechanism can be modeled by a system of nonlinear parabolic partial differential equations, accompanied by a nonlinear delayed integral boundary condition. Our primary objective is to establish the existence of nonnegative classical solutions to this system. Furthermore, we derive a priori estimates for …

Beyond Nutrients: Frass Fertilizer Legacy Effects For Sustainable Nematode Management In Potato–African Nightshade Rotation Systems, Emmanuel O. Anedo, Dennis Beesigamukama, Benson Mochoge, Nicholas K. Korir, Solveig Haukeland, Xavier Cheseto, Moses Nyongesa, Patrick Pwaipwai, Sevgan Subramanian, Abdou Tenkouano, Chrysantus M. Tanga

All Peer-Reviewed Publications

The utilization of insect frass fertilizer in crop production systems has recently gained significant global interest, but there has been limited evidence of its residual benefits in rotational cropping systems. The legacy effects of black soldier frass fertilizers (BSFFF), conventional organic fertilizer (SAFI), inorganic fertilizer (NPK), synthetic nematicide, and their combinations on potato cyst nematode (PCN) management under potato-African nightshade rotational farming systems were investigated. Eight treatments were evaluated: BSFFF, SAFI, chitin-fortified BSFFF (BSFFF+5chitin), NPK + nematicide, combination of BSFFF and NPK so that each supplies 50% of the nitrogen required by potato (50BSFFF+50NPK), combination of SAFI and NPK so …

Exploring The Significance Of Kenya's Indigenous And Emerging Blue Foods For Sustainable Aquaculture Development. A Review, Jonathan Munguti, Mavindu Muthoka, Domitila Kyule, Esther Magondu, Kevin Obiero, Jimmy Mboya, Menaga Meenakshisundaram, Tanga M. Chrysantus, Gerald Kwikiriza, Francis K. Njonge

All Peer-Reviewed Publications

Kenya's aquaculture sector is at a pivotal stage, transitioning from a historical reliance on Nile tilapia and African catfish toward a more diversified production portfolio that integrates indigenous and emerging freshwater and marine species. This shift is increasingly recognized as essential to enhance climate resilience, food security, and ecosystem health. This systematic review synthesizes more than two decades (2000 to 31st January, 2026) of peer-reviewed literature to evaluate the biological suitability, culture performance, and socio-ecological roles of underutilized native taxa, including Ningu (Labeo victorianus), Jipe tilapia (Oreochromis jipe), freshwater prawns (Macrobrachium spp.), rabbitfish (Siganus sutor), marine-acclimatized Nile tilapia, mud crab …

Adjunctive Embolization Of Target Vessel Dissections To Improve Suitability For Fenestrated-Branched Endovascular Aortic Repair, Zemia C Ferreira, Hannah V Oden-Brunson, Ying Huang, Steven Maximus, Naveed Saqib, Erin Greenleaf, Thanila A Macedo, Gustavo S Oderich

Faculty, Staff and Students Publications

Suitability of renal-mesenteric target arteries is an essential criterion for fenestrated-branched endovascular aortic repair (FB-EVAR). We describe a staged adjunctive technique of target vessel false lumen (FL) embolization to improve suitability for FB-EVAR in patients with chronic postdissection thoracoabdominal aortic aneurysms (PD-TAAA) and dissection extension into the superior mesenteric artery (SMA). Three patients with SMA dissection and ectasia (diameter > 12-14 mm) underwent staged FL embolization with pre-emptive stent placement to optimize SMA incorporation. Using bilateral transfemoral access with intravascular ultrasound guidance, the proximal SMA true lumen was stented with an 8 L × 39 mm VBX balloon-expandable stent graft (W. …