Medicine and Health Sciences Commons^™

Coldstartcpi: Induced-Fit Theory-Guided Dti Predictive Model With Improved Generalization Performance, Qichang Zhao, Haochen Zhao, Linyuan Gao, Kai Zheng, Yajie Li, Qiao Ling, Jing Tang, Yaohang Li, Jianxin Wang

Computer Science Faculty Publications

Predicting compound-protein interactions (CPIs) plays a crucial role in drug discovery. Traditional methods, based on the key-lock theory and rigid docking, often fail with novel compounds and proteins due to their inability to account for molecular flexibility and the high sparsity of CPI data. Here, we introduce ColdstartCPI, a framework inspired by induced-fit theory, which leverages unsupervised pre-training features and a Transformer module to learn both compound and protein characteristics. ColdstartCPI treats proteins and compounds as flexible molecules during inference, aligning with biological insights. It outperforms state-of-the-art sequence-based models, particularly for unseen compounds and proteins, and shows strong generalization capability …

Design Of A Post-Market Registry For The Extravascular Implantable Cardioverter-Defibrillator: The Enlighten Study., Lucas V A Boersma, Anish Amin, Nicolas Clémenty, David Duncker, Gregory Engel, Laurence Epstein, Vikas Kuriachan, Camille Frazier-Mills, Marianne Gwechenberger, Nobuhiro Nishii, Jeff Lande, Christopher Wiggenhorn, Ian Crozier

Heart and Vascular Articles

BACKGROUND: The extravascular implantable cardioverter-defibrillator (EV-ICD) with substernal lead placement has been shown to terminate ventricular arrhythmias safely and effectively while being outside the vasculature. The performance of the EV-ICD system with a novel inappropriate shock-reducing algorithm in a real-world setting has yet to be investigated.

OBJECTIVE: The objective of the Enlighten Study: the EV-ICD Post-Approval Registry is to provide a comprehensive measure of the safety and performance of the EV-ICD system in real-world clinical practice over the lifetime of the device.

METHODS: The Enlighten Study is a global, prospective, observational, multicenter, post-approval study utilizing the manufacturer's Product Surveillance Registry. …

Promoting Angiogenesis/Osteogenesis By A New Copper/Magnesium Hydroxide Hybrid Nanoparticle: In Vitro And In Vivo Investigation, Parsa Khalkhali, Meisam Omidi, Daniela S. Masson-Meyers, Babak Akbari, Mohammad Mehdi Dehghan, Hossein Aminianfar, Saeed Farzad-Mohajeri, Van Mansouri, Lobat Tayebi

School of Dentistry Faculty Research and Publications

In this study, a new hybrid nanoparticle composed of magnesium hydroxide and copper oxide (Mg(OH)2/CuO) with an optimized ratio of magnesium (Mg) to copper (Cu) was designed and incorporated into a 3D-printed scaffold made of polycaprolactone (PCL) and gelatin. These hybrid nanostructures (MCNs) were prepared using a green, solvent-free method. Their topography, surface morphology, and structural properties were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The fabricated 3D-printed PCL/Gelatin/MCN scaffolds were investigated in vitro and in vivo. Cell viability tests on murine calvarial preosteoblasts (MC3T3-E1) and human umbilical vein …

Parenteral Nutritional Support In Surgical Patients: Expert Consensus Statements Regarding Intravenous Lipid Emulsions Containing Omega-3 Fatty Acids., Robert G Martindale, David C Evans, Dan Waitzberg, Malissa Warren, Manpreet S Mundi, Stanislaw Klek, Paul E Wischmeyer, Martin D Rosenthal

Surgery Articles

OBJECTIVES: The International Lipids in Parenteral Nutrition (PN) Summit was convened to offer practical guidance and expert consensus opinion regarding the use of intravenous lipid emulsions (ILEs) in various clinical settings. Herein, we briefly review aspects from this summit that are of particular importance for surgical/hospitalized patients.

METHODS: Summit participants identified and discussed new evidence, data, and analyses, that potentially influence the benefits and risks of ILEs in PN or their use in clinical practice. The summit meeting consisted of expert presentations that assessed recent clinical data and best practice, followed by periodic panel discussions to formulate consensus statements. Consensus …

Prophylactic Use Of Lipid Emulsion Therapy After Inadvertent Administration Of 0.5% Ropivacaine For A Bier Block: A Case Report., Alexander Luong, Sirimas Lau, Elizabeth Johnson-Gray, Rayyan Bhutta, Austin Shaffer, Mitchell Hughes, Andrew Gable, Matthias Franzen

Surgery Articles

The Bier block for intravenous regional anesthesia is generally well tolerated, and few complications have been reported. It provides a bloodless surgical field and adequate analgesia when performed correctly. A diluted short-acting local anesthetic such as 0.5% lidocaine is typically used. Our case is a 41-year-old female who presented for endoscopic carpal tunnel release of her right wrist. An accidental injection of 30 mL of 0.5% ropivacaine was given instead of the normal 30 mL of 0.5% lidocaine, with a total tourniquet time of 46 min. Although the maximum safe dose of local anesthetic was not exceeded, lipid emulsion was …

A Primer On Anatomy, Biophysics, Pathology, Imaging And Treatment Of The Intervertebral Disc And The Anterior Spinal Column: The Discogenic, Intervertebral, Spinal Column (Disc) Aspn Workgroup., Jay S Grider, Timothy R Deer, Douglas P Beall, Melissa Z Murphy, Jacob W Fleming, Steven M Falowski, Christopher J Mallard, Hamzah A Ramawad, Rosa Amelia Garcia, Usman Latif, Chau M Vu, Anne Christopher, Michael E Harned, Raj G Patel, Anuj J Shah, Iden M Cowan, Kristin Jarzombek, Jordan L Tate, Nasir Khatri, Mateusz J Graca, Marcin K Karcz, Timothy T Davis, Kaku Barkoh, Olivier Clerk-Lamalice, Brian Durkin, Mark N Malinowski, Dagmar K Gross, Thomas Hedman, Matthew Green, Michael J Dorsi, Kasra Amirdelfan, Dawood Sayed

Surgery Articles

OBJECTIVE: As therapeutic options are rapidly expanding to treat pain of discogenic and vertebrogenic origin, it is important for the clinician to have an evidence-based understanding of the latest information regarding the normal and pathological anatomy of the intervertebral disc as well as imaging characteristics and treatment strategies. The American Society of Pain and Neuroscience (ASPN) commissioned the DISC project to inform and update the interventional spine community about anterior column pain syndromes.

METHODS: Using established literature review methods a clinical oversight group was convened to create an outline covering topics that will be key to meeting the objectives delineated …

Levothyroxine-Associated Thyrotoxicosis And Hyperbilirubinemia On Preoperative Screening Evaluation., Carly J Suriano, Ian P Erkkila, Thomas M Vara

Surgery Articles

BACKGROUND: Levothyroxine is a commonly prescribed medication for treatment of hypothyroidism in the United States. This drug is titrated based on weight and serial laboratory evaluation and is often very well tolerated with few adverse effects. Levothyroxine-associated liver injury and cholestatic disease are regarded as rare phenomena. We report an additional case of levothyroxine-associated hepatic dysfunction with resolution upon decreased dosage and continued tolerance of the medication.

CASE PRESENTATION: We report a case of a 60-year-old male presenting for preoperative clearance for umbilical hernia repair with previous history of thyroidectomy for multinodular goiter. Laboratory work-up suggested thyrotoxicosis-associated hepatic dysfunction secondary …

Obesity, Metabolic Health, And Diabetic Complications In People With Type 1 Diabetes., Yuanjie Mao, Jen-Tzer Gau, Ning Jiang

Ambulatory and Primary Care Articles

AIM: The concept of metabolically healthy obesity (MHO) has not been studied in type 1 diabetes (T1D). By analysing datasets from the DCCT/EDIC study, we compared the development of diabetic complications by obesity and metabolic health over 30 years of follow up.

MATERIALS AND METHODS: Insulin resistance was calculated by estimated glucose disposal rate (eGDR). The participants (n = 1127) were then divided into four groups based on time-weighted mean body mass index and mean eGDR: metabolically healthy non-obesity (MHN, n = 874), metabolically unhealthy non-obesity (MUN, n = 66), MHO (n = 146) and metabolically unhealthy obesity (MUO, n …

Starting The Conversation: Patient Perceptions Of Self-Assessed Type-2 Diabetes Risk., Bennett Collis, Huda Kutmah, Peyton Couch, Neelima J Kale, Karen L Roper

Ambulatory and Primary Care Articles

INTRODUCTION: Little is known about patients' perceptions of their risk for type-2 diabetes (T2D), or if knowledge of risk could facilitate weight and diabetes prevention discussions with health care professionals.

METHODS: In our academic family medicine practice, 25 patients completed a previsit T2D risk assessment on their phone and answered interview and survey questions to assess their understanding of their risk for developing T2D.

RESULTS: Interest in their T2D risk was high, but self-estimation of risk before obtaining their score was low (21/25 reported ≤30% chance of developing diabetes). All patients perceived T2D to be very serious, most remembered their …

Petechiae And A Persistent Violaceous Nodule: A Presentation Of Blastic Plasmacytoid Dendritic Cell Neoplasm To Dermatology., Madison Anzelc, Christina Druskovich, Austin Cusick, Matthew Franklin

Ambulatory and Primary Care Articles

Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare, highly aggressive CD4+ CD56+ hematopoietic malignancy. The cutaneous presentation is variable but often includes violaceous nodules. We present a rare case of BPDCN, which featured dermatological findings consisting of erythematous macules, petechiae, purpura, and a violaceous nodule. A skin biopsy and peripheral blood smear supported a diagnosis of BPDCN. With BPDCN favoring cutaneous involvement, we urge dermatologists to be aware of the possibility of a BPDCN diagnosis in patients who present with purpuric nodules and petechial skin findings, especially when it is not easily explainable by another pathology or medication.

An Evidence-Based Consensus For The Use Of Neurostimulation For The Treatment Of Non-Surgical Low Back Pain: The Neuron Group., Timothy Ray Deer, Jason E Pope, Erika A Petersen, Rany T Abdallah, Kasra Amirdelfan, Nomen Azeem, Vishal Bansal, Kaku Barkoh, Kenneth B Chapman, Daniel R Denis, Michael J Dorsi, Alexander Escobar, Steven Michael Falowski, Rosa Amelia Garcia, Jonathan M Hagedorn, Robert D Heros, Whitney S James, Hemant Kalia, Todd Lansford, Mark N Malinowski, Suzanne Marie Manzi, Pankaj Mehta, Robert Z Moghim, Gregory Anthony Moore, Soriaya Lizette Motivala, Yeshvant A Navalgund, Raj G Patel, Julie G Pilitsis, Michael E Schatman, Philip Michael Shumsky, Natalie Holmes Strand, Nestor D Tomycz, James J Yue, Dawood Sayed

Neuroscience Articles

INTRODUCTION: The use of electrical neuromodulation has often been limited to those with previous back surgery, peripheral neuropathy, and complex regional pain syndrome. Many patients with severe intractable low back pain were thought to be candidates for spinal cord stimulation (SCS), dorsal root ganglion stimulation, or peripheral nerve stimulation but did not meet the criteria. Recently, additional high-level data has supported the use of SCS in non-surgical low back pain (NSLBP), and United States Food and Drug Administration approval has been granted. The American Society of Pain and Neuroscience (ASPN) executive committee realized an unmet need to develop criteria for …

Real-World Clinical Utility Of A Multi-Protein, Blood-Based Biomarker Assay For Disease Activity Assessments In Multiple Sclerosis., Angela Sanchez, Elisa Sheng, Sarah Eagleman, James L Eubanks, Patricia Izbicki, Shannon Mccurdy, Matt Burril, Ferhan Qureshi, Ati Ghoreyshi, Mitzi Joi Williams, Megan Weigel, William Kilgo, Jacqueline Nicholas, Annette Okai, Martin Belkin, Julie Burnham, Yasir Jassam, Michael Sy, Taylor Gonyou

Neuroscience Articles

BACKGROUND: Blood-based biomarkers have emerged as promising tools to optimize treatment decisions in multiple sclerosis (MS) including initiation, switch, or cessation of disease modifying therapies.

OBJECTIVES: The clinically validated MS disease activity (MSDA) test measures 18 proteins to derive a disease activity score. This study tests the clinical utility of MSDA in real-world practice.

METHODS: Twenty clinicians from 14 clinics conducted a chart review utilizing a retrospective, longitudinal design, with a pre-post component. Chart reviews captured clinician decision-making before and after receipt of each MSDA result, while separate clinician assessments also captured the perceived impact of MSDA on MS management. …

Psychosocial Behavioral Phenotypes Of Racially/Ethnically Minoritized Older Adults Enrolled In Habs-Hd Differ On Neuroimaging Measures Of Brain Age Gap, Hippocampal Volume, And Cortical Thickness, Alexandra L Clark, Makenna B Mcgill, Alexandra J Weigand, Julie K Wisch, Kalen Petersen, Beau Ances, Meredith N Braskie, Sid O'Bryant, Kelsey R Thomas, Habs‐Hd Study Team

2020-Current year OA Pubs

INTRODUCTION: This study examined whether previously identified psychosocial behavioral phenotypes differed on structural neuroimaging markers.

METHODS: Latent profile analysis (LPA) employed in a sample of 1820 community-dwelling older adults (1118 Hispanic and 702 Black) replicated previous Low Resource/Low Distress, High Resource/Low Distress, and Low Resource/High Distress phenotype classifications. Analyses of covariance (ANCOVAs) adjusting for relevant factors examined phenotype differences on neuroimaging outcomes of predicted brain age gap (BAG) (DeepBrainNet

RESULTS: The Low Resource/Low Distress and Low Resource/High Distress phenotypes had significantly higher predicted BAGs relative to the High Resource/Low Distress phenotype, and the Low Resource/High Distress group displayed significantly lower …

Wireless Modular Implantable Neural Device With One-Touch Magnetic Assembly For Versatile Neuromodulation, Inho Kang, John Bilbily, Choong Yeon Kim, Chuanqian Shi, Manish K Madasu, Eun Young Jeong, Kyle E Parker, Do A Kwon, Bum-Joon Jung, Jae-Soon Yang, Juhyun Lee, Noah D L Kabbaj, Wonhee Lee, Jun-Bo Yoon, Ream Al-Hasani, Jianliang Xiao, Jordan G Mccall, Jae-Woong Jeong

2020-Current year OA Pubs

Multimodal neural interfaces open new opportunities in brain research by enabling more sophisticated and systematic neural circuit dissection. Integrating complementary features across distinct functional domains, these multifunctional neural probes have greatly advanced the interrogation of complex neural circuitry. However, introducing multiple functionalities into a compact form factor for freely behaving animals presents substantial design hurdles that complicate the device or require more than one device. Moreover, fixed functionality poses challenges in meeting the dynamic needs of chronic neuroscience inquiry, such as replacing consumable parts like batteries or drugs. To address these limitations, the modular implantable neural device (MIND) is introduced …

Surgeons, Physiatrists And Neurologists Speaking "Edx And Nerve Surgery": A Paradigm Shift For Nerve Injured Patients, Deng Pan, Aneri U Patel, J Megan Patterson, Anna Rose Johnson, Travis Gordon, Susan E Mackinnon

2020-Current year OA Pubs

Surgeons' ability to interpret electrodiagnostic (EDX) studies has greatly enhanced patient selection and outcome for nerve surgeries as it has informed our understanding of the classification of nerve injury. EDX measures axons present, lost, or demyelinated. It does not measure an area where axons experience chronic ischemia, making a Sunderland Zero nerve injury a clinical diagnosis that should be suspected when patients have normal EDX, decreased recruitment on electromyography (EMG), and no atrophy. Only observation of recovery in the earliest postoperative period would confirm a Sunderland Zero. In this article, we present an expanded classification of nerve injury, highlighting Sunderland …

Surgical Repair Of An Atypical Midsubstance Distal Biceps Tendon Partial Tear: A Case Report, Michael M. Valenzuela, Genoveffa R. Morway, Christopher M. Jones

Orthopedic Surgery Resident Research

[No abstract available]

Pseudoachondroplasia, A Case Report (Preprint), Alec J. Pupo, Connor J. Stinson, Autumn Dye

Internal Medicine Resident Research

No abstract available.

Wearable-Derived Heart Rate Variability Reveals Autonomic Dysfunction In Schizophrenia (Preprint), Alec J. Pupo, Stephanie H. Felgoise

Internal Medicine Resident Research

Autonomic dysfunction has long been implicated in schizophrenia, yet objective physiological markers remain underutilized in psychiatric research. Heart rate variability (HRV), a noninvasive measure of autonomic regulation, is conventionally derived from short electrocardiographic recordings. In this study, we tested whether continuous, wearable-derived HRV can identify physiologic alterations in schizophrenia-spectrum disorders. Using the NIH All of Us database, we analyzed second-level Fitbit heart rate data from 26 individuals with schizophrenia-spectrum diagnoses and 26 matched controls. Frequency-domain analyses focused on ultra-low frequency (ULF), very low frequency (VLF), and truncated low frequency (tLF) bands, given sampling constraints. Schizophrenia participants showed significantly reduced power …

Elevated Neutrophil-To-Lymphocyte Ratios In Schizophrenia: Insights From A Precision Medicine Cohort (Preprint), Alec J. Pupo, Connor J. Stinson, Chinwendu Madukwe, Stephanie H. Felgoise

Internal Medicine Resident Research

Systemic inflammation has been increasingly implicated in the pathophysiology of schizophrenia. The neutrophil-to-lymphocyte ratio (NLR), a readily available marker of systemic inflammation, has not been thoroughly investigated in large, demographically-matched schizophrenia cohorts. Using data from the All of Us Research Program, we analyzed participants with schizophrenia (n = 396) matched to controls (n = 396) by sex, race, and age. NLR was calculated as the ratio of each participant’s median neutrophil count to median lymphocyte count across all available measurements, excluding extreme values (NLR > 7). Distribution normality was assessed using the Shapiro–Wilk test, and group differences were evaluated with the …

New Graduate Nurse Professional Perseverance Strategies In A Time Of Crisis, Jennifer E. Smith Edd

Dissertations of Practice

This qualitative grounded theory study examined how new graduate nurses who entered practice just prior to and during the COVID-19 pandemic developed and sustained resilience while navigating extraordinary professional and personal challenges. The study focused on associate degree nurses who graduated between December 2018 and May 2022 and were employed in acute and sub-acute care settings with direct patient care responsibilities, including the care of patients with COVID-19. Data were collected through semi-structured interviews and reflective journal entries and analyzed using open, axial, and selective coding.

Findings revealed that resilience was not a static characteristic but an evolving process influenced …

Beyond Grit: Structural Determinants Of Resilience Among College Women With Children In The U.S., Juliana Kahrs

Dissertations of Practice

This critical quantitative analysis explores how social determinants of health, including basic needs security, caregiving and work responsibilities, healthcare access, discrimination experiences, and institutional support predict resilience among U.S. college women with dependents. Using data from the Spring 2021 ACHA-NCHA III survey (n = 4,417), this study integrated the Health Equity Framework with the Social Ecological Theory of Resilience to examine multilevel influences on resilience. Descriptive analyses highlighted disproportionate burdens among single, first-generation, and racially minoritized groups. Bivariate chi-square tests revealed significant associations between resilience and sense of belonging, basic needs security, employment, healthcare utilization, and self-assessed overall health. Multinomial …

Summary Of: Ai Diabetic Retinopathy Screening In A Primary Care Setting In Rural Maine, Rachel Heuer Md, Emma Daybranch Mph, Anastasia Tsomides Do, Jessica F. Dibiase Mph, Neil Korsen Md, Brian Nolan Md

Northern New England Clinical & Translational Research

Diabetic retinopathy (DR) is the leading cause of blindness globally. Early diagnosis and treatment reduce the risk of vision loss by 98%.

Study found @ "AI Diabetic Retinopathy Screening in a Primary Care Setting in Rural M" by Rachel Heuer, Emma DayBranch et al.

Understanding The Challenges And Satisfaction Among The Medical Professional Preceptors, Cornelia Ko

West Chester University Doctoral Projects

This study evaluates the Penn Medicine Family Medicine Clerkship program through a mixed-methods approach, exploring the challenges and factors influencing the satisfaction of medical professional preceptors when precepting students. A quantitative survey with 54 preceptor participants reveals the top challenges preceptors face: workload, conflicts with patient care, and limited clinical space. Despite this, there is strong support for the program, with 89% of preceptors enjoying the role and 85% expressing willingness to continue to precept for the next three years. Finally, data analysis shows no statistical correlation between preceptor motivation with gender, ethnicity, age group, years of serving, or total …

Infant Health Equity In Oklahoma: A Mixed-Methods Exploration Of Personal, Organizational, Environmental, And Policy Factors Contributing To Black Infant Mortality, Ayesha M. Lampkins

West Chester University Doctoral Projects

Black women experience higher rates of adverse birth outcomes, including infant mortality. There is a gap in the literature on multilevel strategies to achieve infant health equity and engage Black women. This study is unique in that no others have looked at the views of Oklahoma Black women to inform and address infant health equity strategies and utilize these views to provide context to existing infant mortality data. The study research questions are: 1) What views on infant health equity and infant mortality are held by Black women in Oklahoma? 2) What differences exist between Black and White mothers in …

The Impact Of Structured Weekend Group Therapy On Restraints, Seclusion And Length Of Stay On Inpatient Psychiatric Units, Victoria Grau

West Chester University Doctoral Projects

Group therapy is an essential part of inpatient psychiatric treatment, with documented positive effects including better medication compliance, lower readmission rate, and improved self- esteem. Patients who are admitted for an inpatient psychiatric stay have a small window of time in which behavioral health staff can work with them. Group therapy can help patients develop a plan for these issues and provide a foundation for successful discharge and symptom management. The project site is a mid-size teaching hospital in an urban community with higher rates of mental health diagnoses than the national average. Group therapy was conducted initially Monday – …

Screening For Relative Energy Deficiency In Sport (Reds) And The Female Athlete Triad In Female Undergraduate Collegiate Athletes: A Quality Improvement Project, Maria A. Marziano

West Chester University Doctoral Projects

This quality improvement (QI) project investigated female collegiate athletes’ knowledge and prevalence of Relative Energy Deficiency in Sport (REDs) and the Female Athlete Triad (Triad). The increase in female athletics brings a growing concern for performance-related health risks, including low energy availability (LEA), menstrual dysfunction, and low bone mineral density (BMD). This study assessed the effectiveness of education and self-screening in identifying at-risk athletes and encouraging resource application for intervention. A mixed-methods design was employed, utilizing retrospective data along with pre- and post-intervention surveys. The study involved 33 female collegiate athletes from lean endurance sports, assessing knowledge, risk factors, and …

Distinguishing Symptoms Of Racial Trauma From Conventional Trauma, Michelle Yoong

West Chester University Doctoral Projects

Trauma research in psychology has traditionally been shaped by a White-centric framework, leading to the underrepresentation of racial and ethnic minority experiences. This study aims to establish racial discrimination as a distinct traumatic stressor with significant psychological consequences by exploring the distinction between racial and conventionally recognized traumatic stressors and posttraumatic stress symptoms (PTSS). It also aims to address inconsistent and exclusionary assessment methodology involving underrepresented racial minority (URM) populations, including the neglect of racial trauma and discrimination measures in trauma research. Participants consisted of URMs who sought enrollment in a clinical trial for opioid use disorder at a community …

A Question For The Ages: The Relationship Between Nurse Staffing And Quality In Appalachian Skilled Nursing Facilities, Eric Jason Pulice

Theses, Dissertations and Capstones

Nurse staffing levels have been shown to have a critical impact on nursing quality in skilled nursing facilities (SNFs). Sociodemographic disparities in Appalachian areas have the potential to impact SNF nurse staffing levels and quality. This study examined the relationship between nurse staffing levels and quality in Appalachian SNFs, as well as compliance with the Biden Administration’s minimum staffing mandates as set forth in CMS-3442-F enacted on June 24, 2024.

The study applied Resource Dependency Theory (RDT) through Donabedian’s Structure-Process-Outcome (SPO) conceptual framework to assess how external resource constraints and regulatory policies impact nurse staffing levels and quality in Appalachian …

Circadian Variation In Mgmt Promoter Methylation And Expression Predicts Sensitivity To Temozolomide In Glioblastoma, Maria F. Gonzalez-Aponte, Yitong Huang, William A. Leidig, Tatiana Simon, Omar H. Butt, Marc D. Ruben, Albert H. Kim, Joshua B. Rubin, Erik D. Herzog, Olivia J. Walch

Mathematics Sciences: Faculty Publications

Purpose Recent studies show that glioblastoma (GBM) is more sensitive to temozolomide (TMZ) in the morning. In cells, inhibiting O6-Methylguanine-DNA-Methyltransferase (MGMT) abolished time-dependent TMZ efficacy, suggesting that circadian regulation of this DNA repair enzyme underlies daily TMZ sensitivity. Here, we tested the hypotheses that MGMT promoter methylation and protein abundance vary with time-of-day in GBM, resulting in daily rhythms in TMZ efficacy.

Methods We assessed daily rhythms in MGMT promoter methylation in GBM in vitro and retrospectively analyzed MGMT methylation status in human GBM biopsies collected at different times of day. Next, we measured MGMT and BMAL1 protein …

Radiographic Assessment Following Maxillary Bone Augmentation Using Patient Specific Titanium Meshes Loaded With Bone Marrow Aspirate Mixed With Xenograft Versus Xenograft Mixed With Autografts Only: A Randomized Clinical Trial, Moataz Bahaa Dr., Ahmed Moustafa Abdelmaksoud Dr., Mohamed Mounir Dr., Yasmin Nassar Prof

Dentistry

Aim: The aim of the study is to evaluate the efficacy of three-dimensional bone augmentation in maxillary atrophied alveolar ridges by comparing the utilization of bone marrow aspirate concentrate along with a mix of autograft and xenograft versus autograft and xenograft alone. utilizing patient-specific titanium meshes. Subjects and methods: Ten patients experiencing severe vertical and horizontal deficiencies in the entire maxillary arch underwent guided bone regeneration. Utilizing specialized software, virtual bone augmentation were performed for the deficient ridge across the entire maxillary alveolus. This process involved generating virtually augmented models to guide the preoperative prebending of titanium meshes. In the …