Digital Commons Network^™

Tetracycline And Oxacillin Act Synergistically On Biofilms And Display Increased Efficacy In Vivo Against Staphylococcus Aureus, Amy K. Tooke, Rebecca E. Hodges, Josie F. Pyrah, Kenneth W. Bayles, Stephen A. Renshaw, Simon J. Foster

Journal Articles: Pathology and Microbiology

Oxacillin (bactericidal) and tetracycline (bacteriostatic) are clinically relevant antibiotics that are routinely prescribed to treat Staphylococcus aureus infections but not conventionally used in combination. There is an urgent need for treatment regimens that can act upon biofilms during infection, associated with chronic infections on indwelling devices, as well as acute planktonic (systemic) infection. Here we show that in an in vitro model oxacillin and tetracycline act synergistically against S. aureus UAMS-1 biofilms, reducing the concentration of both antibiotics necessary to eradicate an established biofilm. Using an in vivo zebrafish larval infection model with S. aureus NewHG, they display improved bacterial …

How Does Plasma L-Fabp Level Correlate With Cardiovascular Disease Risk In Patients With Chronic Kidney Disease, And Can It Serve As A Reliable Biomarker For Risk Stratification?”, Nehad Refat Ibrahim, Ghadir Elsawy

Journal of Medicine in Scientific Research

Chronic kidney disease (CKD) affects up to 10% of the global adult population, with cardiovascular disease (CVD) being a major concern. CKD patients face increased CVD-related morbidity and mortality. While the exact mechanisms linking CKD and CVD are complex, traditional risk factors (e.g., diabetes, hypertension) and nontraditional factors (e.g., inflammation, oxidative stress) play a role. Liver-type fatty acid-binding protein (L-FABP) is associated with lipid metabolism and kidney injury. Few studies suggest L-FABP as a potential biomarker for CVD risk in CKD patients, but further research is needed to fully understand its role. This study aims to explore the link between …

Role Of Insulin-Like Growth Factor-1 Signaling In Diet-Enhanced Bone Elongation, Cassaundra A. White

Theses, Dissertations and Capstones

Childhood obesity has increased precipitously to the point that almost 20% of children between the ages of 2 and 19 have been diagnosed with obesity. While obesity is a complex metabolic disorder, one contributing factor is diet, particularly a diet high in fat. Among many problems associated with diet-induced obesity, the impact on skeletal health is often overlooked. In addition to increased stress on the skeleton due to excess weight, obesity also disrupts the endocrine and immune systems that, in turn, can secondarily alter skeletal growth. Obesity during the early years of childhood is particularly detrimental because the skeleton is …

Mechanosensory Encoding In Ex Vivo Muscle–Nerve Preparations, Stephen N. Housley, Evelyn A. Gardolinski, Paul Nardelli, J'Ana Reed, Mark M. Rich, Timothy C. Cope

Neuroscience, Cell Biology & Physiology Faculty Publications

Our objective was to evaluate an ex vivo muscle-nerve preparation used to study mechanosensory signalling by low threshold mechanosensory receptors (LTMRs). Specifically, we aimed to assess how well the ex vivo preparation represents in vivo firing behaviours of the three major LTMR subtypes of muscle primary sensory afferents, namely type Ia and II muscle spindle (MS) afferents and type Ib tendon organ afferents. Using published procedures for ex vivo study of LTMRs in mouse hindlimb muscles, we replicated earlier reports on afferent firing in response to conventional stretch paradigms applied to non-contracting, that is passive, muscle. Relative to in vivo …

Fentanyl And Methamphetamine Mixture Interactions On Drug Choice In Male And Female Sprague Dawley Rats, Voisava Bokciu, Nick Heslep, Allison Ortiz, Matthew L. Banks Phd

IRBEH/Spit for Science Publications and Presentations

No abstract provided.

A Three-Dimensional In Vitro Model Of Disease That Improves Preclinical Research By Incorporating Genetic Diversity And Increasing Physiological Accuracy, Akash Jagdeesh

AUCTUS: The Journal of Undergraduate Research and Creative Scholarship

Biomedical research is essential for the discovery of new medications and treatments, and is built upon the cooperation of preclinical (in vitro/vivo) research and clinical trials. However, 85% of treatments successful in vitro/vivo fail in clinical trials, suggesting that in vitro models are poor indicators of clinical success. The issue lies in conventional “two-dimensional” in vitro models containing genetically identical cells grown on a flat plate, which lack the variety of cell types and cooperation/structure found in real tissue. Moreover, 2D in vitro models do not simulate humans’ genotypic variability, which affects both pathophysiology and treatment effectiveness. In contrast, 3D …

Disease Footprints: Understanding Basic Pathophysiology, Jeff Vasiloff, Md, Mph

OHIO Open Faculty Textbooks

Basic pathophysiology explained by Jeffrey Vasiloff, MD, MPH, Associate Clinical Professor, PA Program; Adjunct Professor, PT Program, College of Health Sciences and Professions, Ohio University Dublin Medical Campus; Physician Consultant: Ohio Association of Physician Assistants; Physician Volunteer: Franklin County & Columbus Medical Reserve Corps; Board Certification: Internal Medicine & Diabetes and Endocrinology.

Single-Cell Profiling Reveals A Conserved Role For Hypoxia-Inducible Factor Signaling During Human Craniotomy Infection, Zachary Van Roy, Gunjan Kak, Lee E. Korshoj, Joseph P. Menousek, Cortney E. Heim, Rachel W. Fallet, James Campbell, Carol Reynolds Geary, Bo Liu, Santhi Gorantla, Larisa Y Poluektova, Bin Duan, Walter S. Campbell, William Thorell, Tammy Kielian

Journal Articles: Pathology and Microbiology

Neurosurgeries complicated by infection are associated with prolonged treatment and significant morbidity. Craniotomy is a common neurosurgical procedure; however, the cellular and molecular signatures associated with craniotomy infection in human subjects are unknown. A retrospective study of over 2,500 craniotomies reveals diverse patient demographics, pathogen identity, and surgical landscapes associated with infection. Leukocyte profiling in patient tissues from craniotomy infection characterizes a predominance of granulocytic myeloid-derived suppressor cells that may arise from transmigrated blood neutrophils, based on single-cell RNA sequencing (scRNA-seq) trajectory analysis. Single-cell transcriptomic analysis identifies metabolic shifts in tissue leukocytes, including a conserved hypoxia-inducible factor (HIF) signature. The …

Human Rights, Informed Consent, And The Influence Of Gender In Compulsory Vaccination: A Qualitative Analysis To Mediate Public Policy In A Protracted Social Conflict, Shannon Christine Rowles-Mcgighan

Department of Conflict Resolution Studies Theses and Dissertations

This research study sought to understand the perspectives and experiences related to theCompulsory Vaccination Policy and the Vaccine Injury Compensation Program. The research objective was to mediate the conflict between the public and the medical community by presenting what William Ury called the “third side.” Uri (1999) studied conflict and found another way to perceive conflict from a larger perspective that emphasizes a fair solution that meets both sides’ needs and the surrounding communities. This study involved qualitative analysis to triangulate the concerns in the conflict through an evaluation of vaccine injury cases, vaccine injury data collection methods, the influence …

Exploring The Impact Of P2y2 Receptor Activation And Inflammation On Glucose Homeostasis In Mice, Jamila Makhloufi

Graduate Theses/Dissertations

Insulin resistance is the body's impaired ability to utilize endogenous and exogenous insulin to take up blood glucose and is associated with many clinical conditions including type 2 diabetes, hypertension, obesity, and cardiovascular disease. The cause of insulin resistance is still unknown; however, it is linked to inflammation. The activation of the purinergic P2Y₂ receptor potentiates an inflammatory response under the pathogenesis of obesity and has adverse effects on glucose metabolism by regulating insulin resistance. The goal of this research is to investigate the effects of P2Y₂ receptor activation on the downstream signaling pathways of the insulin receptor …

Clinical And Radiographical Assessment Of Platelet Rich Fibrin (Prf) Versus Placental Extract Gel On Delayed Implant Placement: Comparative Clinical Split Mouth Study, Eman Shawki Mira, Ayman Abdel Rahim Mohammed Elkashty, Ahmed Mohammed Saaduddin Sapri

Mansoura Journal of Dentistry

Purpose: This study was established to compare Platelet Rich Fibrin (PRF) versus Placental Extract Gel on delayed implant placement.

Patient and Methods: Sixteen patients aged from 35-45 years were selected for that study. Split mouth design was performed, placing PFR on one side of the mouth while placing placental extract gel on the other side of the mouth during implant insertion. Follow -up was done for all the cases 6 months postoperatively both clinically and radiographically. When comparing two groups within the same timepoint, the student unpaired t-test was employed, and when comparing two timepoints within the same group in …

Taste And Learning In The Gustatory Cortex, Martin Raymond

Alternative Theses and Dissertations (AETDs)

This research investigates the organization of taste representations in the gustatory cortex (GC) through two experiments utilizing miniscope imaging in mice. The first experiment focuses on conditioned taste aversion (CTA) and reveals that taste representations in GC are heavily dominated by palatability, with shifts in representational space occurring as a function of learning and extinction. The second experiment explores the interrelation of aversive stimuli, the impact of novelty on taste representations, and the role of somatosensory feedback. Findings suggest that familiarity and palatability emerge as positive signals with experience, shaping taste representations in GC. The study contributes to a nuanced …

The Crucial Role Of Community Medicine In Improving Public Health, Malik Maaz Ahmad, Imran Ahmed Khan, Neha Priyanka

Digital Journal of Clinical Medicine

Community medicine, also known as Social and Preventive Medicine, is a specialized field of medicine that focuses on promoting and protecting the health and well-being of communities and populations. Unlike other medical specialties that primarily focus on individual patients, community medicine takes a broader approach, addressing the health needs of entire populations. The specialty of community medicine plays a vital role in clinical practice and public health. Its focus on prevention, population health, and evidence-based medicine makes it an essential discipline in improving the health and well-being of communities. Community-based medical education is of vital relevance in the modern change …

The Role Of Liver-Specific Transcription Factor Hnf4 In Reprogramming Of Fibroblasts, Mary Odubote

Masters Theses

The mammalian liver, a vital organ with complex functions, relies on a network of transcription factors to regulate gene expression. Fusion of hepatoma cells with fibroblasts often leads to gene extinction, silencing approximately 400 liver-enriched genes, including critical transcription factors such as HNF4. Previous studies revealed that ectopic expression of HNF4 in fibroblasts failed to prevent the extinction of SERPINA1, a liver-specific gene, upon subsequent fusion with hepatoma cells. Here, we sought to investigate the extent to which ectopic expression of HNF4 can reprogram fibroblast cells and prevent gene extinction in hybrid cells.

Using whole-genome expression analysis, we compared RAT1 …

Age-Related Longitudinal Changes In Gray Matter Microstructure, Jessica Hayes

Wayne State University Theses

Measures of the brain’s microstructure may be more sensitive markers of aging than macrostructural measures. However, it remains unclear exactly how gray matter microstructure changes during aging and how this relates to changes in macrostructure. The present study evaluated how neurite density, orientation dispersion, and gray matter volume changed over a three-year period in a sample of healthy older adults. The role of age in modifying structural change within the hippocampus, precuneus, and rostral anterior cingulate cortex was also considered. Repeated measures general linear models additionally evaluated whether degree of change in microstructure between the first two measurement occasions modified …

Understanding The Mechanism Of Ferroptosis Susceptibility Variation In Colorectal Cancer, Aziza Alshahrani

Theses and Dissertations--Toxicology and Cancer Biology

Colorectal cancer (CRC) is the second leading cause of cancer-related death worldwide. Despite the use of chemotherapeutic agents, CRCs remains to be difficult to cure at least partially due to their intrinsic and/or acquired resistance to cell death inducers. Ferroptosis is a form of regulated cell death that caused by the accumulation of lipid peroxides. Studies have shown that dysregulation of ferroptotic pathways is associated with the development of resistance to various cancer treatment. Glutathione peroxidase 4 (GPX4) is a known target for inducing ferroptosis due to its critical role in detoxifying lipid hydroperoxides, and ferroptosis suppressor protein (FSP1) also …

Hippocampal Subfield Volumes And Memory Development From Middle Childhood To Late Adulthood: 2-Year Longitudinal Change And Modifiers Of Age Effects, Roya Homayouni

Wayne State University Dissertations

Introduction: The hippocampus (Hc) is crucial for memory function across all ages and is comprised of distinct subfields: dentate gyrus (DG), cornu ammonis sectors (CA1-3), and subiculum. Hc subfields support different aspects of memory function across the lifespan and are differentially vulnerable to late-life pathology. Increased knowledge of normative lifespan developmental trajectories of Hc subfield volumes will illuminate their cognitive and health correlates across different ages. Yet, the evidence on change and variability of Hc subfield volumes across the lifespan is sparse. Methods: Here, I conducted a meta-analysis of cross-sectional findings of subfield volumes across ages (n = 48,278 participants, …

Estradiol Signaling Improves Extinction Memory Recall To Combat Cue-Induced Heroin Relapse In Rats, Jordan S. Carter

MUSC Theses and Dissertations

We are in the midst of an opioid use disorder (OUD) epidemic. While several treatments mitigate a range of factors contributing to return to use, or relapse, the power of drug-conditioned environmental cues to precipitate relapse have not been adequately addressed. One treatment modality targeting cue reactivity, cue exposure therapy (CET), exacerbated relapse in individuals with OUD, perhaps due to a deficit in extinction memory recall (EMR). Here, EMR is the ability to override the drug-cue association and prevent relapse. Interest remains in combatting cue-induced relapse, potentially by introducing a pharmacologic adjunct with CET to enhance EMR. In the following …

Effect Of Dopamine-2-Receptor Manipulation On Social Interaction And Social Decision-Making In Juvenile Fish, Kiren Kanazawa

CMC Senior Theses

Animals interact in intricate social networks. Social behavior is imperative in shaping relationships, in communication, and adapting to changing environments. Despite its profound effects on individual fitness and health, neural-molecular mechanisms behind social behavior and social decision-making continue to be identified. In the present study, we focused on the regulation of social behavior by the Dopamine-2-Receptor (D2R), based on its role in context-dependent social behavior. We used juvenile African cichlid fish, Astatotilapia burtoni, to investigate the effect of dopamine signaling manipulation on their aggressive, territorial, and affiliative behaviors. We hypothesize that D2R manipulation affects social decision-making in juvenile A. burtoni. …

The Influence Of Drd2 Polymorphism Exon 8 C/T (Rs6276) On Manifestations Of Delirium Tremens & Alcohol Withdrawal Seizures, Naomi Schneider

Honors Theses and Capstones

This study explores the correlation between the DRD2 Polymorphism exon 8 C/T (rs6276) and manifestations of delirium tremens (DT). DT is a condition that is clinically diagnosed utilizing two characteristic symptom manifestations: the presence of delirium and severe alcohol withdrawal. It is not entirely understood why DT can occur in some patients, but evidence has suggested that genetic predisposition can play a role. Utilizing the National Institutes of Health (NIH) All of Us Research database and performing a secondary analysis of existing genomic data, this candidate gene association study aims to determine the genotype frequencies within three cohorts: a healthy …

สุขภาพจิตและกลไกทางจิตของเจ้าหน้าที่ขนขยะมูลฝอยสังกัดกรุงเทพมหานคร, จิรทีปต์ ชอบทำกิจ

Chulalongkorn University Theses and Dissertations (Chula ETD)

งานวิจัยนี้เป็นการวิจัยเชิงวิเคราะห์ภาคตัดขวาง มีวัตถุประสงค์เพื่อศึกษาภาวะสุขภาพจิต กลไกทางจิต และปัจจัยที่เกี่ยวข้องกับภาวะสุขภาพจิตของเจ้าหน้าที่ขนขยะมูลฝอยสังกัดกรุงเทพมหานคร กลุ่มตัวอย่าง คือ เจ้าหน้าที่ขนขยะมูลฝอยสังกัดกรุงเทพมหานครจำนวน 265 ราย ซึ่งคัดเลือกโดยวิธีสุ่มตัวอย่างแบบหลายขั้นตอน เก็บข้อมูลระหว่างเดือนสิงหาคมถึงตุลาคม พ.ศ. 2567 ด้วยแบบสอบถามที่ประกอบด้วยปัจจัยส่วนบุคคล ปัจจัยด้านการทำงาน แบบสอบถามกลไกทางจิตฉบับภาษาไทย และแบบสอบถามวัดสุขภาพจิตคนไทยฉบับสมบูรณ์ 55 ข้อ วิเคราะห์ข้อมูลด้วยสถิติเชิงพรรณนาและสถิติเชิงอนุมาน รวมถึงการวิเคราะห์ความสัมพันธ์แบบสองตัวแปรและพหุตัวแปรโดยใช้สถิติการถดถอยโลจิสติกเชิงพหุ ผลการศึกษาพบว่า เจ้าหน้าที่ขนขยะมูลฝอยร้อยละ 39.6 มีภาวะสุขภาพจิตต่ำกว่าคนทั่วไป และเมื่อควบคุมปัจจัยอื่น พบว่าปัจจัยที่มีความสัมพันธ์กับภาวะสุขภาพจิตต่ำกว่าคนทั่วไปอย่างมีนัยสำคัญทางสถิติ ได้แก่ การใช้กลไกทางจิตประเภทบิดเบือนภาพลักษณ์ตนเองหรือผู้อื่น (OR=3.50, 95%CI 1.64-7.46) การใช้กลไกทางจิตประเภทที่ช่วยลดความรู้สึกที่ไม่พึงประสงค์ (OR=2.86, 95%CI 1.49-5.48) ระดับการศึกษาประถมศึกษา/มัธยมศึกษาตอนต้น (OR=1.91, 95%CI 1.12-3.26) และความพึงพอใจต่อตารางการปฏิบัติงานในระดับต่ำ (OR=2.22, 95%CI 1.04-4.73) จากผลการศึกษาดังกล่าว องค์กรควรมีมาตรการป้องกันและเฝ้าระวังสุขภาพจิต โดยกำหนดนโยบายคัดกรองสุขภาพจิตประจำปี และจัดให้มีระบบรายงานปัญหาสุขภาพจิตแก่หัวหน้างาน รวมถึงกิจกรรมส่งเสริมสุขภาพจิต เช่น การให้ความรู้เรื่องการจัดการความเครียด ควรเสริมสร้างกลไกทางจิตที่เหมาะสมโดยฝึกอบรมให้เจ้าหน้าที่ใช้กลไกทางจิตเชิงบวก และปรับปรุงสภาพแวดล้อมการทำงานเพื่อลดแรงกดดัน

Immunotherapeutic Properties Of Virus Like Particles Displaying Allergens In A Mouse Model Of House Dust Mite Allergy, Piyachat Patniboon

Chulalongkorn University Theses and Dissertations (Chula ETD)

House dust mite (HDM) represents one of the most prominent sources of allergens. The rising prevalence of HDM-induced allergic diseases such as allergic rhinitis, allergic asthma or atopic dermatitis is a major global health challenge. Allergen immunotherapy (AIT), by frequent administrations of HDM allergen extracts, is the unique treatment capable of alleviating the Th2-biased allergic response through the induction of immune tolerance. However, AIT faces limitations in terms of duration, efficacy and safety, explaining the poor patient adherence. Clinical efficacy of HDM extract-based AIT was shown to be dependent on the selection of patients sensitized to the two major HDM …

Depletion Of Oxalate In High-Oxalate Beverages By Positively Charged Particles, Sukrita Aungsuthan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Excessive dietary intake of oxalate is a key risk factor of calcium oxalate (CaOx) nephrolithiasis. Therefore, limiting daily oxalate intake is recommended to prevent CaOx stone formation. Black tea and coffee are commonly consumed beverages that are rich in oxalate, and avoidance of tea and coffee consumption is relatively hard. In this study, therefore, we aimed to develop a novel tool for depleting oxalate in black tea and coffee. Since oxalate is negatively charged, we hypothesized that positively charged particles would be an effective tool for capturing and removing oxalate. Hydroxyapatite (HA) and calcium alginate (Ca-Alg) beads were fabricated and …

Visual Acuity Change In Non- Arteritic Anterior Ischemic Optic Neuropathy, Parinee Kemchoknatee

Chulalongkorn University Theses and Dissertations (Chula ETD)

Purpose: :To assess the potential influence of serum biochemical factors, specifically lipid profile parameters, on visual outcomes in patients with NAION. Patients And Methods :All patients diagnosed with NAION at Rajavithi Hospital between 1 January 2011and 31 December 2020 were retrospectively reviewed .The primary wutcome was defined as visual recovery, measured by an improvement of at least 0.2 logarithm of the minimal angle of resolution (logMAR) in their best corrected visual acuity (BCVA) at the 12 weeks follow up visit compared to the initial visit and determine whether those lipid profiles parameters are predictive of 12 weeks visual outcomes. Results: …

การศึกษาผลของสารสกัดกระเจี๊ยบแดงด้วยน้ำ (ส่วนกลีบเลี้ยง) ต่อภาวะดื้อต่ออินซูลินของอาสาสมัครที่มีภาวะเมแทบอลิกซินโดรม, กัญชพร ชัยสูงเนิน

Chulalongkorn University Theses and Dissertations (Chula ETD)

กระเจี๊ยบแดง (Hibiscus sabdariffa L.) ถูกนำมาเป็นทางเลือกในการรักษากลุ่มอาการภาวะเมแทบอลิกซินโดรม แต่ผลการศึกษาทางคลินิกด้านประสิทธิผลยังคงมีความไม่สอดคล้องกัน งานวิจัยนี้ประกอบด้วย 2 ส่วน คือ ส่วนที่ 1 การทบทวนวรรณกรรมอย่างเป็นระบบ และส่วนที่ 2 งานวิจัยทางคลินิกชนิดสุ่ม ปกปิดสองทางและมีกลุ่มควบคุม โดยส่วนที่ 1 มีวัตถุประสงค์เพื่อเปรียบเทียบคุณภาพของระเบียบวิธีวิจัยและข้อมูลผลิตภัณฑ์กระเจี๊ยบแดง ระหว่างงานวิจัยที่มีผลการศึกษาเป็นบวกกับลบ ส่วนที่ 2 มีวัตถุประสงค์เพื่อศึกษาผลของสารสกัดกระเจี๊ยบแดงด้วยน้ำ (ส่วนกลีบเลี้ยง) ต่อภาวะดื้อต่ออินซูลิน ตัวชี้วัดระดับน้ำตาล ระดับไขมัน การอักเสบ ความดันโลหิต น้ำหนักตัวและความปลอดภัย ได้แก่ ค่าการทำงานของตับ ไตและระบบโลหิต วิธีการวิจัย ส่วนที่ 1 สืบค้นข้อมูลที่เกี่ยวข้องจากฐานข้อมูล PubMed, MEDLINE และ Scopus ประเมินคุณภาพของแต่ละบทความตามแนวทางของ CONSORT ส่วนที่ 2 อาสาสมัครที่มีภาวะเมแทบอลิกซินโดรม (88 คน) ถูกแบ่งกลุ่มอย่างสุ่ม ให้กินสารสกัดกระเจี๊ยบแดงด้วยน้ำ (ส่วนกลีบเลี้ยง) 1000 mg/day ซึ่งประกอบด้วยสารโพลีฟีนอล เท่ากับ 45.04 mg/day หรือยาหลอก เป็นเวลา 12 สัปดาห์ วิเคราะห์ตัวชี้วัดต่างๆ ณ ที่เริ่มต้น สัปดาห์ที่ 6 และ 12 ผลการศึกษา ส่วนที่ 1 งานวิจัยที่ผ่านเกณฑ์คัดเลือก 23 เรื่อง พบความแตกต่างระหว่างงานวิจัยที่ให้ผลการศึกษาเป็นบวกและลบ และคุณภาพระเบียบวิธีวิจัยและข้อมูลของผลิตภัณฑ์จำเป็นต้องปรับปรุง ส่วนที่ 2 พบว่ากลุ่มที่กินสารสกัดกระเจี๊ยบแดงมีระดับ LDL ลดลงอย่างมีนัยสำคัญ (p < 0.05) ณ สัปดาห์ที่ 12 เมื่อเปรียบเทียบกับก่อนกิน แต่ไม่มีผลต่อภาวะดื้อต่ออินซูลินและตัวชี้วัดอื่นตลอดการศึกษาเมื่อเปรียบเทียบกับยาหลอก โดยสรุปจากการทบทวนวรรณกรรมอย่างเป็นระบบชี้แนะให้งานวิจัยควรปรับปรุงคุณภาพระเบียบวิธีวิจัยและข้อมูลผลิตภัณฑ์ให้ดียิ่งขึ้น และการวิจัยทางคลินิกพบว่าการกินสารสกัดกระเจี๊ยบแดงด้วยน้ำ (ส่วนกลีบเลี้ยง) มีความปลอดภัยและอาจช่วยลดระดับ LDL ได้

Morphological Characterization And Molecular Identification Of Armillifer Tongue Worm Isolated From A Human Case In Northern Thailand, Thanapat Pataradool

Chulalongkorn University Theses and Dissertations (Chula ETD)

Pentastomiasis, a neglected zoonotic parasitic disease caused by tongue worms (subclass Pentastomida), presents significant diagnostic challenges due to its non-specific clinical manifestations, the limitations of conventional diagnostic methods, and the absence of standardized molecular diagnostic tools. This study aimed to identify Armillifer tongue worms isolated from a human case in Northern Thailand through both morphological and molecular approaches and to evaluate the feasibility of molecular diagnosis using less invasive clinical specimens. Morphological identification was performed via gross examination, morphometric analysis, histopathological evaluation, and scanning electron microscopy, revealing features consistent with A. moniliformis. Species confirmation was achieved using multi-locus PCR and …

Scalp Fast Oscillations As A Predictor For Epilepsy In Adults With First Unprovoked Seizure, Wichuta Muangthong

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Patients with a first unprovoked seizure (FUS) carry different risks of recurrence, making management uncertainties arise. Low sensitivity of the conventional electroencephalography (EEG) findings limits practical usefulness. Novel application of scalp fast oscillations (SFOs) in prediction of recurrence has been recently studied; however, none has been conducted in adults. Method: 15-minute artifact-free recording was used for detection of SFOs. Time-frequency analysis with fast Fourier transform was conducted using Nihon-Kohden Neurofax® wide-band analysis software. Total number and frequency (Hz) of the SFOs, either superimposed on sharp/spike (SFOSs) or appearing in isolation (ISFOs), were calculated for each patient. Outcome was seizure …

Antenatal Dexamethasone For Late Preterm Deliveries: A Randomized Controlled Trial, Hoang Minh Chau Le

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Antenatal corticosteroids (ACS) have been found to have beneficial effects on neonatal lung function, reducing mortality and morbidities, especially in very preterm infants. The World Health Organization recommends ACS for women at risk of preterm birth from 24 to 34 weeks of gestation; however, specific recommendations ACS use in late preterm deliveries remain lacking. This study aimed to assess the effect of antenatal dexamethasone on reducing the need for respiratory support, neonatal morbidities and mortality, NICU admission, and length of hospital stay in late preterm infants. Methods: This single-centre, parallel group, open-label randomized controlled trial enrolled women with singleton …

Exploring The Skin Microbiome Of Alopecic Cynomolgus Macaques (Macaca Fascicularis) Based On Oxford Nanopore Technologies, Natthanit Phokkhasub

Chulalongkorn University Theses and Dissertations (Chula ETD)

Alopecia or hair loss in captive non-human primates (NHPs) such as cynomolgus macaques is a major concern of animal welfare in many primate facilities. The purpose of this study is to investigate the association between alopecic and healthy skin microbiome in cynomolgus macaques. This study included skin swab samples (head, arm, leg, ventral, and dorsal areas) collected from 33 healthy and 50 alopecic macaques housed at the NPRCT-CU. LEfSe analysis revealed the significant bacteria found in multiple areas of the alopecic group, including P. copri and L. animalis. The significant fungi found in double areas (arm-dorsal, dorsal-head, and leg-ventral) of …

Effects Of Stat3 Variant On Stat1 And Stat5b In Fibroblasts From Mice With Stat3 Gain-Of-Function Variant, Natthakan Thareram

Chulalongkorn University Theses and Dissertations (Chula ETD)

STAT mutations cause immune system dysfunction and many diseases, such as autoimmune cytopenias, lymphoproliferative disorders, susceptibility to infections, endocrinopathies, and growth defects. However, the molecular activity of these proteins remains unclear. Here, we investigated the phosphorylation, nuclear translocation, and gene expression levels of Stat1, Stat3, and Stat5b, as well as downstream target genes of these proteins, using mouse fibroblasts with Stat3 wild type and Stat3 L387R gain-of-function (GOF) variant edited by CRISPR-Cas9 technique as a model. In fibroblasts of Stat3 L387R GOF animals, the expression of downstream target genes of STAT1, Cxcl10 and Irf7 were significantly decreased compared with Stat3 …