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Full-Text Articles in Diseases

Hemifacial Spasm Due To Dolichoectasia Of Vertebral And Basilar Arteries, Meena Iyer, Shasthara Paneyala Dr. Jan 2025

Hemifacial Spasm Due To Dolichoectasia Of Vertebral And Basilar Arteries, Meena Iyer, Shasthara Paneyala Dr.

Digital Journal of Clinical Medicine

Dolichoectasia refers to the non-focal dilatation and tortuosity of arteries, primarily affecting the vertebral and basilar arteries due to severe tunica intima degeneration. It is associated with genetic predisposition and atherosclerosis, leading to vessel wall weakening. Patients may remain asymptomatic or develop neurological deficits due to mass effect. We report a case of a 60-year-old male presenting with hemifacial spasm secondary to vertebral artery dolichoectasia. Magnetic Resonance Angiography (MRA) revealed ectatic and tortuous basilar and vertebral arteries, with the left vertebral artery compressing the left facial nerve complex. Using Smoker’s criteria, a diagnosis of dolichoectasia was confirmed. Dolichoectasia-induced hemifacial spasm …


Comparison Of The Effectiveness Of Preoperative Dexmedetomidine Nebulization Versus Lignocaine Nebulization In Attenuation Of Stress Response During Direct Laryngoscopy And Endotracheal Intubation In Elective Surgeries Under General Anaesthesia: A Randomised Control Study At A Tertiary Care Hospital, Mandya, Sumayya E., Kiran A V., Santhosh M C B., Shivakumar G Jan 2025

Comparison Of The Effectiveness Of Preoperative Dexmedetomidine Nebulization Versus Lignocaine Nebulization In Attenuation Of Stress Response During Direct Laryngoscopy And Endotracheal Intubation In Elective Surgeries Under General Anaesthesia: A Randomised Control Study At A Tertiary Care Hospital, Mandya, Sumayya E., Kiran A V., Santhosh M C B., Shivakumar G

Digital Journal of Clinical Medicine

Introduction: Direct laryngoscopy and tracheal intubation are known to provoke harmful stimuli that can lead to transient, unpredictable, and variable hemodynamic alterations, primarily due to heightened sympathoadrenal activity.1 Various pharmacological agents have been explored to mitigate this stress response; however, none have emerged as optimal.2

Aim: This study aims to compare the effects of nebulized dexmedetomidine in comparison to nebulized lignocaine on the hemodynamic stress response during direct laryngoscopy and tracheal intubation, including any adverse effects in patients undergoing general endotracheal anesthesia.

Materials and Methods: Informed consent was obtained from 60 patients aged 18 to …


Lymphoma Chronicles: Insights From A Distinct Hodgkin's Lymphoma Case Report, Srirangam Shankaralingam, Vibha Nagaragatta Jan 2025

Lymphoma Chronicles: Insights From A Distinct Hodgkin's Lymphoma Case Report, Srirangam Shankaralingam, Vibha Nagaragatta

Digital Journal of Clinical Medicine

Hodgkin lymphoma (HL) is a kind of lymphatic malignancy distinguished by the presence of Reed-Sternberg cells. It often manifests as painless lymphadenopathy and systemic symptoms (B symptoms and can affect a variety of lymphoid tissues. The causes of HL are complicated and include genetic predisposition, environmental conditions and viral infections, particularly the Epstein-Barr virus (EBV). The diagnosis is primarily based on histological evaluation of lymph node samples, with immunophenotyping assisting classification. Herein, we report a case of classical Hodgkin’s lymphoma (HL) in an otherwise healthy 31-year-old male who had a mass per abdomen for a year and recently noticed a …


Felt Need For Psychiatry Clubs In Medical Colleges To Enhance Teaching-Learning, Aditya Rao, Sheryl Agarwal, Sharanya Bose, M Kishor Jan 2025

Felt Need For Psychiatry Clubs In Medical Colleges To Enhance Teaching-Learning, Aditya Rao, Sheryl Agarwal, Sharanya Bose, M Kishor

Digital Journal of Clinical Medicine

Mental health competence is critical for medical graduates, yet in India the treatment gap for common mental disorders remains substantial, with prevalence estimates indicating up to 80.4% of unmet need. Recent reforms under the Competency-based Medical Education (CBME) curriculum have expanded psychiatry training; however, deficiencies in applied skills, preventive psychiatry, and communication remain. Psychiatry clubs have been proposed as supplementary, student-led platforms to address these limitations. This cross-sectional study assessed the perceived need for psychiatry clubs among undergraduate medical students and explored their potential role in enhancing teaching–learning. A structured online survey was administered to 94 students across different phases …


Localized Reticulate Hyperpigmentation From Heater Use: A Case Of Erythema Ab Igne, Chitwan Kaur Ghuman, Monish Yarlagadda, Ashwini P K Jan 2025

Localized Reticulate Hyperpigmentation From Heater Use: A Case Of Erythema Ab Igne, Chitwan Kaur Ghuman, Monish Yarlagadda, Ashwini P K

Digital Journal of Clinical Medicine

Background: Erythema ab igne (EAI) is a reticulated, hyperpigmented dermatosis resulting from prolonged exposure to infrared radiation insufficient to cause burns. While increasingly rare due to central heating, it remains relevant in vulnerable populations, particularly the elderly and immobilized.

Case Summary: We report the case of an 83-year-old bedbound female who developed characteristic pigmentary changes over her right upper and lower limbs due to chronic proximity to a room heater.

Conclusion: Awareness of EAI is crucial to prevent unnecessary investigations and to emphasize the importance of appropriate thermal environment modifications, especially in bedbound geriatric patients.


Extracapsular Excision Of Retroperitoneal Ancient Schwannoma: A Case Report, Mayur Chaure, Shital Dharamkhele, Keval Dhone, Imran Ahmed Khan Jan 2025

Extracapsular Excision Of Retroperitoneal Ancient Schwannoma: A Case Report, Mayur Chaure, Shital Dharamkhele, Keval Dhone, Imran Ahmed Khan

Digital Journal of Clinical Medicine

Schwannomas are tumors originating from Schwann cells in the nerve sheath. They are generally solitary and encapsulated, but they are rarely seen in the retroperitoneal region. We report a 40-years-old woman with dull aching pain for two months without urinary symptoms. Following imaging studies, a well-encapsulated, retroperitoneal mass complicated with intratumoral bleed and necrosis was found.

Complete surgical resection was performed with preservation of adjacent viscera. The histopathology report confirmed the tumor as an ancient schwannoma. Careful preoperative surgical planning and meticulous surgical skill, along with the application of ERAS protocol, are essential to prevent morbidity and mortality. No evidence …


Prevalence Of Depression Among Type 2 Diabetes Mellitus Patients In Urban Mysuru – A Cross-Sectional Study, Jesymol Joy, Renuka M, Chiranjeevi G S Jan 2025

Prevalence Of Depression Among Type 2 Diabetes Mellitus Patients In Urban Mysuru – A Cross-Sectional Study, Jesymol Joy, Renuka M, Chiranjeevi G S

Digital Journal of Clinical Medicine

Background: Depression is a significant comorbidity among individuals with Type 2 Diabetes Mellitus (T2DM) adversely affecting disease management and overall quality of life. Diabetes and depression have a bidirectional relationship, where poorly managed diabetes increases the risk of depression, and depression exacerbates diabetes-related complications. Depression contributes to poor glycemic control, decreased adherence to treatment, increased risk of diabetes-related complications, and higher healthcare utilization.

Objectives: To determine the prevalence of depression and its associated factors among Type 2 Diabetes Mellitus patients in urban Mysuru.

Methods: A community-based cross-sectional study was conducted among 300 Type 2 Diabetes mellitus patients >18 years of …


Allergic Bronchopulmonary Aspergillosis In Pediatric Asthma : A Diagnostic Challenge Mimicking Tuberculosis, Praveen Das, Santosh Kondekar, Surbhi Rathi Jan 2025

Allergic Bronchopulmonary Aspergillosis In Pediatric Asthma : A Diagnostic Challenge Mimicking Tuberculosis, Praveen Das, Santosh Kondekar, Surbhi Rathi

Digital Journal of Clinical Medicine

Allergic bronchopulmonary aspergillosis (ABPA) is a rare hypersensitivity reaction to Aspergillus fumigatus, more commonly observed in adults and patients with cystic fibrosis. It can, however, present in pediatric asthmatics with refractory symptoms, leading to diagnostic challenges due to overlapping features with other pulmonary diseases, including tuberculosis. ABPA should be considered in children with uncontrolled asthma and atypical radiologic features, especially when unresponsive to standard therapies. Early recognition and appropriate management are critical to prevent irreversible lung damage and improve quality of life.


Pregnancy-Related Delusional Beliefs In Midlife And Late-Life Women: A Case Series, Dyuksha Arora, Ashita Adarsh, Kishor M. Manohar Rao, Anand R, Soumya Rajshekar Patil, Akshatha Cj Jan 2025

Pregnancy-Related Delusional Beliefs In Midlife And Late-Life Women: A Case Series, Dyuksha Arora, Ashita Adarsh, Kishor M. Manohar Rao, Anand R, Soumya Rajshekar Patil, Akshatha Cj

Digital Journal of Clinical Medicine

Pseudocyesis and delusional pregnancy represent rare but clinically significant presentations across psychiatric practice. While pseudocyesis involves a false belief of pregnancy accompanied by physical manifestations, delusion of pregnancy refers to a fixed belief of being pregnant despite clear contrary evidence. Both conditions pose considerable challenges as they involve close consultation and liaison between Obstetrics & Gynaecology and Psychiatry. There are a few studies from tertiary care general hospitals in India. Here we report two case series.

Case 1: A 43-year-old married woman from a rural background with an 8-year history of recurrent depressive disorder and dysthymia, presented with 3 months …


One Airway, One Disease In Pregnancy: A Prospective Observational Study On The Correlation Between Upper And Lower Airway Inflammation In Pregnant Women, Durga K, Yuvarajan S Jan 2025

One Airway, One Disease In Pregnancy: A Prospective Observational Study On The Correlation Between Upper And Lower Airway Inflammation In Pregnant Women, Durga K, Yuvarajan S

Digital Journal of Clinical Medicine

Background: The well-established "One Airway, One Disease" concept recognizes the deep physiological and pathological connections between conditions affecting both the upper and lower respiratory tracts, most notably allergic rhinitis and asthma. During pregnancy, a woman's body undergoes significant immunological, hormonal, and physiological changes, which can profoundly influence and modulate existing or emerging airway inflammation.

Objective: This prospective observational study was designed with the primary objective of meticulously evaluating the correlation between upper and lower airway inflammation in pregnant women. We aimed to achieve this by assessing a range of clinical symptoms, objective functional parameters, and specific inflammatory markers.

Methods: We …


Comparision Of Buprenorphine Versus Butorphanol As An Adjuvant To Intrathecal Hyperbaric Bupivacaine For Elective Infraumbilical Surgeries : A Randomised Control Study At A Tertiary Care Hospital, Mandya, Surabhi C A, Dr. Kiran A V. Associate Professor, Dr. Shivakumar G Pofessor And Hod, Umesh N P Jan 2025

Comparision Of Buprenorphine Versus Butorphanol As An Adjuvant To Intrathecal Hyperbaric Bupivacaine For Elective Infraumbilical Surgeries : A Randomised Control Study At A Tertiary Care Hospital, Mandya, Surabhi C A, Dr. Kiran A V. Associate Professor, Dr. Shivakumar G Pofessor And Hod, Umesh N P

Digital Journal of Clinical Medicine

Introduction: Spinal anaesthesia is the most popularly performed procedure in the field of anaesthesiology. Hyperbaric bupivacaine, the local anaesthetic most commonly used, has limitation as its effect lasts only for 1.5-2 hours. Hence a lot of adjuvants have been tried to enhance the analgesic effect of bupivacaine.[2] Opioids remain the mainstay among the various adjuvants to local anesthetics in spinal anaesthesia primarily by virtue of its various properties such as reducing the dose of local anaesthetic, minimizing side effects, and prolonging the duration of anaesthesia.[3]

Aim: This study aims to compare the sensory and motor characteristics …


Diagnosis Of Hypertensive Disorders In Pregnancy, Rebecca Horgan, Yara Hage Diab, Maged Costantine, George Saade, Baha Sibai Jan 2025

Diagnosis Of Hypertensive Disorders In Pregnancy, Rebecca Horgan, Yara Hage Diab, Maged Costantine, George Saade, Baha Sibai

Department of Obstetrics & Gynecology Faculty Publications

Hypertensive disorders of pregnancy, including chronic hypertension, superimposed preeclampsia, gestational hypertension, and preeclampsia, affect 10-20% of pregnancies and are a significant cause of maternal and perinatal mortality. The incidence of these disorders is rising due to factors such as advanced maternal age, obesity, assisted reproductive technology, and increased rates of preexisting comorbidities. Differentiating pregnancy-associated hypertension from pre-existing chronic hypertension is challenging, as the overlap between the two may be broadening due to the changing demographics of the pregnant population. This review critically evaluated the evidence regarding the current time periods recommended to make a diagnosis of a hypertensive disorder of …


Microbial Remodeling Of Gut Tryptophan Metabolism And Indole-3-Lactate Production Regulate Epithelial Barrier Repair And Viral Suppression In Human And Simian Immunodeficiency Virus Infections, Clarissa Santos Rocha, Katie L. Alexander, Carolina Herrera, Mariana G. Weber, Irina Grishina, Lauren A. Hirao, Dylan J. Kramer, Juan Arredondo, Abigail Mende, Katti R. Crakes, Anne N. Fenton, Maria L. Marco, David A. Mills, John C. Kappes, Lesley E. Smythies, Paul Ziprin, Sumathi Sankaran-Walters, Phillip D. Smith, Satya Dandekar Jan 2025

Microbial Remodeling Of Gut Tryptophan Metabolism And Indole-3-Lactate Production Regulate Epithelial Barrier Repair And Viral Suppression In Human And Simian Immunodeficiency Virus Infections, Clarissa Santos Rocha, Katie L. Alexander, Carolina Herrera, Mariana G. Weber, Irina Grishina, Lauren A. Hirao, Dylan J. Kramer, Juan Arredondo, Abigail Mende, Katti R. Crakes, Anne N. Fenton, Maria L. Marco, David A. Mills, John C. Kappes, Lesley E. Smythies, Paul Ziprin, Sumathi Sankaran-Walters, Phillip D. Smith, Satya Dandekar

Department of Obstetrics & Gynecology Faculty Publications

Gut inflammatory diseases cause microbial dysbiosis. Human immunodeficiency virus-1 (HIV) infection disrupts intestinal integrity, subverts repair/renewal pathways, impairs mucosal immunity and propels microbial dysbiosis. However, microbial metabolic mechanisms driving repair mechanisms in virally inflamed gut are not well understood. We investigated the capability and mechanisms of gut microbes to restore epithelial barriers and mucosal immunity in virally inflamed gut by using a multipronged approach: an in vivo simian immunodeficiency virus (SIV)-infected nonhuman primate model of HIV/AIDS, ex vivo HIV-exposed human colorectal explants and primary human intestinal epithelial cells. SIV infection reprogrammed tryptophan (TRP) metabolism, increasing kynurenine catabolite levels that are …


Cost-Effective Hierarchical Cobalt Nanostructured Laser-Induced Graphene For Enhanced Uric Acid Detection, Anju Joshi, Gymama Slaughter Jan 2025

Cost-Effective Hierarchical Cobalt Nanostructured Laser-Induced Graphene For Enhanced Uric Acid Detection, Anju Joshi, Gymama Slaughter

Center for Bioelectronics Publications

This study presents an innovative, cost-effective strategy to develop a flexible, enzyme-free biosensor for the sensitive detection of uric acid (UA). Utilizing electrochemically modified cobalt nanostructured on laser-induced graphene electrodes (CoNCs/LIG), this approach surpasses traditional noble metal-based electrocatalysts in sensitivity and affordability. The one-step electrochemical modification method is efficient and straightforward, enabling the uniform deposition of hierarchical flower-like cobalt nanostructures. These structures synergistically enhance the performance of the LIG, resulting in a broad detection range of 5 to 700 µM with a sensitivity of 6.75 µA µM-¹ cm-² and a low detection limit of 3.66 µM for UA. …


The Role Of Horizontal Gene Transfer In Antibiotic Resistance Amidst Prevalent Community And Healthcare-Associated Mrsa Rates, Gabrielle Nascimento Jan 2025

The Role Of Horizontal Gene Transfer In Antibiotic Resistance Amidst Prevalent Community And Healthcare-Associated Mrsa Rates, Gabrielle Nascimento

Honors College Theses

In recent decades, cases of community-acquired MRSA (CA-MRSA) and healthcare-associated MRSA (HA-MRSA) have been on the rise. The ability of antibiotic resistance to transfer between microorganisms greatly expands its threat to the effective treatment and containment of bacterial infections. The mecA gene is found on a mobile cassette within the Staphylococcal cell and encodes for PBP2a, an alternate version of penicillin-binding protein (PBP) with less binding affinity for β-lactam antibiotics, increasing resistance to the effects of antibiotics. The goal of this research is to investigate the horizontal transfer of the mecA gene between various Staphylococcus species as well as to …


Comparing Human Milk-Derived Vs Bovine-Derived Fortifiers In Formula-Fed Preterm Infants On The Incidence Of Necrotizing Enterocolitis, Maya C. Kern Jan 2025

Comparing Human Milk-Derived Vs Bovine-Derived Fortifiers In Formula-Fed Preterm Infants On The Incidence Of Necrotizing Enterocolitis, Maya C. Kern

Nursing | Student Research Posters

Necrotizing enterocolitis (NEC) is one of the leading causes of death in infants < 32 weeks gestation and/or < 1500g. Human breast milk lowers NEC rates through immunologic, microbial, and gut-protective mechanisms. When maternal or donor milk is unavailable, infants require formula with fortification but the safest type of fortifiers remains unclear. Bovine-derived fortifiers may increase gut inflammation; human milk-derived fortifiers may offer more protection. Limited research exists comparing these fortifiers when infants are exclusively formula fed. Determining if human milk-derived fortifiers still reduce NEC risk could influence NICU feeding guidelines and improve outcomes.


Leveraging Clinical Standards To Improve The Translational Relevance Of Therapies For Experimental Spinal Cord Injury, Aaron L. Silverstein Jan 2025

Leveraging Clinical Standards To Improve The Translational Relevance Of Therapies For Experimental Spinal Cord Injury, Aaron L. Silverstein

Theses and Dissertations--Neuroscience

Efforts to improve treatment of spinal cord injury (SCI) often use animals to develop effective therapeutics, intending to improve the survival and the quality of life of persons with SCI. Over half of all SCIs in the United States occur at the cervical level and often cause locomotor deficits and life-threatening breathing dysfunction. Thus, my dissertation is focused on this important patient population.

After beginning with a description of translational research and surveying SCI from a clinical standpoint, I turned to describe experimental models of cervical SCI and more detailed neuroimmunological findings relevant to my work. Then, I conducted a …


Biochemical And Biophysical Properties Of Failing Myocardium In Rare Patient Populations, Gregory Nathaniel Milburn Jan 2025

Biochemical And Biophysical Properties Of Failing Myocardium In Rare Patient Populations, Gregory Nathaniel Milburn

Theses and Dissertations--Physiology

Heart failure has diverse underlying etiologies, complicating research. While some types, like ischemic disease or inherited mutations, are well-studied, research on rarer forms has lagged. Understanding the molecular drivers in these populations may enhance diagnostics and therapies. This work examines two rare groups: patients with ATTR cardiac amyloidosis and those receiving mechanical assist device support. We show that myocardium from patients with amyloidosis has increased fibrosis and reduced force production without changes in cross-bridge kinetics. Additionally, we show that the passive stiffness of amyloidosis myocardium is not different from non-failing myocardium, indicating increased ventricular wall thickness may cause restrictive filling. …


Biochemical Properties Of Cardiac Sarcomeres In Human Heart Failure, Austin Grey Wellette-Hunsucker Jan 2025

Biochemical Properties Of Cardiac Sarcomeres In Human Heart Failure, Austin Grey Wellette-Hunsucker

Theses and Dissertations--Physiology

Heart failure (HF) exhibits considerable heterogeneity, posing significant challenges for research involving human cohorts. Diastolic dysfunction is a common pathophysiological feature; however, its molecular mechanisms remain incompletely elucidated. Sarcomeric proteins are integral to cardiac contraction and relaxation. Nonetheless, the phosphoproteome and the structural remodeling effects of these proteins on diastolic function within the context of HF have not been comprehensively characterized. This study examined sarcomeric modifications in diastolic dysfunction in human HF, focusing on Dilated and Ischemic HF, with non-failing donor hearts as controls. Analyzing myocardial samples from ~150 patients using electrophoretic and biochemical techniques, it found significant titin remodeling …


Fabricating Silver-Ceria Polymer Nanocomposite Scaffolds For Biomedical Therapeutic Applications, Shreya S. Pawar Jan 2025

Fabricating Silver-Ceria Polymer Nanocomposite Scaffolds For Biomedical Therapeutic Applications, Shreya S. Pawar

Honors Undergraduate Theses

Improper healing of bone fractures and limited regeneration of bone following bone tumor resection remain a prevalent complication worldwide. Long-term effects of this include joint instability, limited movement, and arthritis. Bone infections (osteomyelitis), reactive oxygen species (ROS) generation via excessive inflammation, and underlying conditions such as osteoporosis can contribute to suboptimal bone tissue regeneration. ROS accumulation stimulates osteoblast apoptosis, while promoting osteoclast differentiation. These processes inhibit mineralization and osteogenesis. Conventional therapeutics involve the utilization of drugs and bone grafts. However, these approaches pose limitations and can result in subsequent complications. Microbial infections, ROS accumulation, and excessive inflammations are factors that …


Recombinant Factor Viia: New Insights Into The Mechanism Of Action Through Product Innovation, Miguel A Escobar, Maureane Hoffman, Giancarlo Castaman, Cedric Hermans, Johnny Mahlangu, Johannes Oldenburg, Charles L Percy, Mark T Reding, Amy D Shapiro, Steven W Pipe Jan 2025

Recombinant Factor Viia: New Insights Into The Mechanism Of Action Through Product Innovation, Miguel A Escobar, Maureane Hoffman, Giancarlo Castaman, Cedric Hermans, Johnny Mahlangu, Johannes Oldenburg, Charles L Percy, Mark T Reding, Amy D Shapiro, Steven W Pipe

Faculty, Staff and Student Publications

Management of bleeding in persons with hemophilia and inhibitors involves treatment with bypassing agents, including recombinant activated factor VII (rFVIIa). Two rFVIIa products are commercially approved for use in the United States and the European Union. Eptacog alfa and eptacog beta share the same amino acid sequence but differ in posttranslational modifications. Although rFVIIa has been used to manage bleeding in persons with hemophilia and inhibitors for over 30 years, its mechanisms of action is still being studied. In vitro and in vivo studies have suggested that rFVIIa could promote hemostasis by (1) increasing tissue factor-dependent activation of factor (F)X …


Sex-Specific Roles Of The Adipocyte Mineralocorticoid Receptor In Obesity And Early Life Stress, Meghan B. Turner Jan 2025

Sex-Specific Roles Of The Adipocyte Mineralocorticoid Receptor In Obesity And Early Life Stress, Meghan B. Turner

Theses and Dissertations--Pharmacology and Nutritional Sciences

Obesity is a burgeoning health epidemic caused by chronic overnutrition and exacerbated by genetic, environmental and developmental factors. The adipocyte mineralocorticoid receptor (MR), a transcriptionally active nuclear receptor, is speculated to contribute to metabolic dysfunction in the obese state. MR expression is increased in obese adipose tissue, and MR modulates the expression of fat-derived hormones such as leptin and adiponectin. In women, obesity can be exacerbated by early life stress, such as adverse childhood experiences (ACEs). Studies show that women display a positive association between cumulative ACE exposures and increased body mass index. Previously, we demonstrated that maternal separation and …


Alpha-Synuclein Interaction With Gedunin, Tony Matundura Nyabayo Jan 2025

Alpha-Synuclein Interaction With Gedunin, Tony Matundura Nyabayo

Graduate Theses/Dissertations

Parkinson’s disease (PD) and other Proteinopathies develop when α-synuclein misfolds and aggregates into toxic amyloids. While existing treatments for PD are primarily focused on managing its symptoms, a viable solution for slowing down the progress of Parkinson’s disease involves targeting the toxic α-synuclein amyloids. Gedunin, a natural inhibitor of heat shock protein 90, has been extensively used to treat malaria. Also, recent research investigations have shed light on its potential beyond malaria therapy, indicating that Gedunin may offer a possible solution for treating a variety of neurodegenerative diseases. Using plate-based assays, we examined how Gedunin influences α-synuclein fibrillation and its …


Characterizing A Rad23 Dependent Ultraviolet Radiation Resistance In Tetrahymena Thermophila, Emma June Liimatta Jan 2025

Characterizing A Rad23 Dependent Ultraviolet Radiation Resistance In Tetrahymena Thermophila, Emma June Liimatta

Graduate Theses/Dissertations

In 2020, 10 million deaths were attributed to cancer, with multidrug resistance being responsible for over 90% of deaths in cancer patients receiving treatment. This study utilized the model organism Tetrahymena thermophila to study how cells become resistant to Ultraviolet Radiation (UV) radiation, a process similar to multidrug resistance, specifically focusing on the nucleotide excision repair and ubiquitin shuttle protein Rad23. The National Cancer Institute documented 30-60% of cancers tested had a mutation in RAD23. Knockdown of RAD23 in Tetrahymena thermophila demonstrated a UV resistance phenotype with decreased nucleotide excision repair and differential expression of proteins active within caspase-independent …


One And Half Versus Bi-Ventricular Repair In Pediatric E Bstein Anomaly, Short-Term Outcomes Retrospective Analysis, Rania Abushokka, Hanan Mohammed Hassan, Ahmed Meawad, Ahmed Algebaly Jan 2025

One And Half Versus Bi-Ventricular Repair In Pediatric E Bstein Anomaly, Short-Term Outcomes Retrospective Analysis, Rania Abushokka, Hanan Mohammed Hassan, Ahmed Meawad, Ahmed Algebaly

Journal of Medicine in Scientific Research

-Background: The application of one and half-ventricular repair in Ebstein anomaly(EA) should be considered, in association with effective cone repair, to reduce the volume preload on a dysfunctional right ventricle, and to take the benefit of obtaining ante-grade pulmonary blood flow. The one and half-ventricular repair that applied in patients with hypoplastic sub pulmonic ventricle can alternate effectively the Fontan pathway. This provides pulsatility in pulmonary circulation. However, pressure elevation in superior vena cava (SVC) and right atrial hypertension can occur in patient’s undergone one and half ventricular repair. Aim The aim of this study to evaluate the short-term outcomes …


Rwanda's Natural Remedies: A Fresh Look At The Fight Against Malaria, Leandre Nsabimana Ndisanze Jan 2025

Rwanda's Natural Remedies: A Fresh Look At The Fight Against Malaria, Leandre Nsabimana Ndisanze

Pomona Senior Theses

Malaria remains one of the most devastating parasitic diseases globally, disproportionately affecting sub-Saharan Africa, where Rwanda continues to face high transmission rates and rising resistance to conventional interventions. Despite decades of control efforts, the emergence of drug-resistant Plasmodium falciparum and insecticide-resistant Anopheles mosquitoes threatens to reverse recent gains. This research responds to the urgent need for sustainable and culturally relevant alternatives by exploring the therapeutic potential of Rwandan traditional medicinal plants. These indigenous remedies, long used by local healers, offer an underexplored reservoir of bioactive compounds that may provide the basis for novel antimalarial drugs.

The central hypothesis of this …


Gain-Of-Function Tp53 Mutations Induce Non-Canonical Nf-Κb Transcriptional Targets To Promote Tumor Development, Kelsey A. Yutan Jan 2025

Gain-Of-Function Tp53 Mutations Induce Non-Canonical Nf-Κb Transcriptional Targets To Promote Tumor Development, Kelsey A. Yutan

Scripps Senior Theses

Background: Gain-of-function TP53 mutations have previously been shown to induce chromosomal instability (CIN) in cancer cells, triggering the cGAS-STING innate immune response and subsequently activating the non-canonical NF-κB (NC-NF-κB) signaling pathway. This signaling cascade promotes cancer cell metastasis and an immunosuppressive tumor microenvironment (TME), significantly impacting tumor development and progression. However, the precise downstream mechanisms by which the mutp53-CIN-cGAS-STING-NC-NF-κB signaling pathway facilitates tumor development and progression remain poorly understood. Here, our objective was to identify direct downstream targets of mutp53-CIN-cGAS-STING-induced NC-NF-κB signaling that potentially impact the TME to promote the development and progression of oral squamous cell carcinoma.

Methods …


Astrocyte Specific Enhancers In The Cortex And Striatum Of Mice, Mikaela Kottelich Jan 2025

Astrocyte Specific Enhancers In The Cortex And Striatum Of Mice, Mikaela Kottelich

Williams Honors College, Honors Research Projects

Among glial cells, astrocytes have a prevalent influence on supporting neuronal function and overall brain health. Specifically targeting this cell type for disease treatment is an existing issue. Other cell types tend to express the desired treatment, which is not always wanted and can lead to unintended, negative consequences. Astrocytes contribute largely to maintaining the blood brain barrier, which is disrupted in Parkinson’s disease. Certain genes are thought to be the reason for this disruption, so if they can be specifically targeted in astrocytes with a specific enhancer, the disruption of the disease could be reversed. In our experiment, we …


Key Considerations For Combination Therapy In Alzheimer’S Clinical Trials: Perspectives From An Expert Advisory Board Convened By The Alzheimer’S Drug Discovery Foundation, Jeffrey Cummings, Michael Gold, Mark Mintun, Michael Irizarry, Andrew Von Eschenbach, Suzanne Hendrix, Donald Berry, Cristina Sampaio, Kaycee Sink, Jaren Landen, Miia Kivipelto, Michael Grundman, Steven E Arnold, Allan Green, Katherine Partrick, Laura Nisenbaum, Aaron Burstein, Howard Fillit Jan 2025

Key Considerations For Combination Therapy In Alzheimer’S Clinical Trials: Perspectives From An Expert Advisory Board Convened By The Alzheimer’S Drug Discovery Foundation, Jeffrey Cummings, Michael Gold, Mark Mintun, Michael Irizarry, Andrew Von Eschenbach, Suzanne Hendrix, Donald Berry, Cristina Sampaio, Kaycee Sink, Jaren Landen, Miia Kivipelto, Michael Grundman, Steven E Arnold, Allan Green, Katherine Partrick, Laura Nisenbaum, Aaron Burstein, Howard Fillit

Faculty, Staff and Student Publications

There is growing consensus in the Alzheimer's community that combination therapy will be needed to maximize therapeutic benefits through the course of the disease. However, combination therapy raises complex questions and decisions for study sponsors, from preclinical research through clinical trial design to regulatory, statistical, and operational considerations. In January 2024, the Alzheimer's Drug Discovery Foundation convened an expert advisory board to discuss the key considerations in each of these areas. Experts agreed on the need to prioritize a combination therapy approach that encompasses a wide range of targets associated with aging and the underlying biology of Alzheimer's disease. Progress …


High-Throughput Drug Screening For Disease-Modifying Arthritis Therapy, Janapriya Vijayakumar Jan 2025

High-Throughput Drug Screening For Disease-Modifying Arthritis Therapy, Janapriya Vijayakumar

Honors Undergraduate Theses

Current therapy for arthritis predominantly focuses on the symptoms rather than the underlying causes of disease progression. Thus, it is necessary to identify novel drugs which target the underlying molecular basis of such diseases. Using high-throughput cell-based drug screening, we screened 458 different compounds, narrowed down from 811 starting compounds from the NIH Mechanistic Set. We selected drugs from the Mechanistic Set following Lipinski's Rule of 5 to ensure optimal pharmacokinetic properties. The study used modified primary human chondrocytes (IIAM-PRG4Luc), which secrete a lubricin promoter-driven luciferase reporter. We use this luciferase expression as a proxy to measure lubricin, a compound …