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Role Of Myo/Nog Cells In Neuroprotection: Evidence From The Light Damaged Retina., Alice Brandli, Jacquelyn Gerhart, Christopher K Sutera, Sivaraman Purushothuman, Mindy George-Weinstein, Jonathan Stone, Arturo Bravo Nuevo

PCOM Scholarly Works

PURPOSE: To identify Myo/Nog cells in the adult retina and test their role in protecting retinal photoreceptors from light damage.

METHODS: Light damage was induced by exposing albino rats raised in dim cyclic light to 1000 lux light for 24 hours. In one group of rats, Myo/Nog cells were purified from rat brain tissue by magnetic cell sorting following binding of the G8 monoclonal antibody (mAb). These cells were injected into the vitreous humour of the eye within 2 hours following bright light exposure. Retinal function was assessed using full-field, flash electroretinogram (ERG) before and after treatment. The numbers of …

The Lived Experience Of Intersectionality Among African American Women With Breast Cancer, Teri D. Armour Burton

Dissertations

African American women (AAW) continue to have breast cancer mortality rates that are 42% higher than White women (De Santis et al., 2015). Researchers suggest that an epistemological approach that integrates the biomedical and feminist models would be more effective in addressing health disparities. The concept of intersectionality, which grew out of the Black feminist movement, provides a lens in which to view the lived experiences of AAW with breast cancer. The intersectionality paradigm attempts to address the marginalized, oppressive, intersecting social existence of AAW through the examination of identity, social class, and power.

This qualitative study applied a descriptive …

Randomized Trial Of Two Doses Of Vitamin D3 In Preterm Infants <32 Weeks: Dose Impact On Achieving Desired Serum 25(Oh)D3 In A Nicu Population., Ann Anderson-Berry, Melissa Thoene, Julie Wagner, Elizabeth Lyden, Glenville Jones, Martin Kaufmann, Matthew Van Ormer, Corrine K. Hanson

Journal Articles: Pediatrics

BACKGROUND: Recommendations for vitamin D supplementation for preterm infants span a wide range of doses. Response to vitamin D supplementation and impact on outcomes in preterm infants is not well understood.

OBJECTIVE: Evaluate serum 25(OH)D3 concentration changes after 4 weeks in response to two different doses of vitamin D3 supplementation in a population of premature infants and quantify the impact on NICU outcomes.

DESIGN: 32 infants born at 24-32 weeks gestation were prospectively randomized to receive 400 or 800 IU/day vitamin D3 supplementation. Serum 25(OH)D3 levels were measured every 4 weeks. The Wilcoxon signed rank test was used to compare …

Type 2 Immune Responses In The Context Of Helminth Infection, Asthma, Dendritic Cells, And Myeloid Derived Suppressor Cell Function, Sheela Ruby Damle

Theses and Dissertations

Type 2 (T_H2) immune responses evolved to respond to helminth parasite infections by the production of T_H2 cytokines, which stimulate anti-helminth immunity. Macrophage migration inhibitor factor (MIF) is a pleiotropic cytokine, which is produced by many cell types. We demonstrate that mice deficient in MIF have enhanced clearance of a helminth parasite. MIF deficiency in CD4⁺ T cells was found to be the most important for mediating parasite clearance. We mimicked MIF deficiency by administering an inhibitor of the MIF tautomerase activity, sulforaphane, and this also increased parasite clearance (Section I).

T_H2 immune …

Readiness For Antimicrobial Resistance (Amr) Surveillance In Pakistan; A Model For Laboratory Strengthening, Dania Khalid Saeed, Rumina Hasan, Mahwish Naim, Afia Zafar, Erum Khan, Kauser Jabeen, Seema Irfan, Imran Ahmed Haq, Mohammad Zeeshan, Zabin Wajidali, Joveria Farooqi, Sadia Shakoor, Abdul Chagla, Jason Roy

Department of Pathology and Laboratory Medicine

Background: Limited capacity of laboratories for antimicrobial susceptibility testing (AST) presents a critical diagnostic bottleneck in resource limited countries. This paper aims to identify such gaps and to explore whether laboratory networks could contribute towards improving AST in low resource settings.
Methods: A self-assessment tool to assess antimicrobial susceptibility testing capacity was administered as a pre-workshop activity to participants from 30 microbiology laboratories in 3 cities in Pakistan. Data from public and private laboratories was analyzed and capacity of each scored in percentage terms. Laboratories from Karachi were invited to join a support network. A cohort of five laboratories that …

Training Midwives To Perform Basic Obstetric Point-Of-Care Ultrasound In Rural Areas Using A Tablet Platform And Mobile Phone Transmission Technology—A Wfumb Coe Project, Sudhir Vinayak, Joyce Sande, Harvey Nisenbaum, Christian Pállson Nolsøe

Imaging & Diagnostic Radiology, East Africa

Point-of-care ultrasound (POCUS) has become a topical subject and can be applied in a variety of ways with differing outcomes. The cost of all diagnostic procedures including obstetric ultrasound examinations is a major factor in the developing world and POCUS is only useful if it can be equated to good outcomes at a lower cost than a routine obstetric examination. The aim of this study was to assess a number of processes including accuracy of images and reports generated by midwives, performance of a tablet-sized ultrasound scanner, training of midwives to complete ultrasounds, teleradiology solution transmissions of images via internet, …

Reactivation Of Hiv-1 Proviruses In Immune-Compromised Mice Engrafted With Human Voa-Negative Cd4+ T Cells, Zhe Yuan, Guobin Kang, Wuxun Lu, Qingsheng Li

Nebraska Center for Virology: Faculty Publications

Background: HIV-1 infection remains incurable on antiretroviral therapy (ART) due to virus latency. To date, enhanced co-culture assays, including viral outgrowth assays (VOA), are commonly used to measure HIV-1 latent reservoirs and evaluate latency-reversing agents (LRAs). However, VOA can only reactivate a small fraction of intact proviruses.

Methods: To explore the utility of NOD scid gamma (NSG) mice as an in vivo model to reactivate HIV-1 proviruses from VOA-negative CD4+ T cells, resting CD4+ T cells from an HIV-1 latently infected individual were isolated and the human CD4+ T cells corresponding to VOA-positive and VOA-negative CD4+ T cells were engrafted …

Prebiotics And Inflammatory Bowel Disease, Heather Rasmussen, Bruce R. Hamaker

Department of Nutrition and Health Sciences: Faculty Publications

Inflammatory bowel disease risk factors include poor diet, and corresponding low intake of dietary fiber, specifically prebiotics, which is fermented by the gut microbiota. Dietary fibers, many of which are potential prebiotics, have hundreds to thousands of unique chemical structures that may promote bacteria or bacterial groups to provide beneficial health effects. In vitro and in vivo animal models provide some support for the use of prebiotics for inflammatory bowel disease through inflammation reduction. Studies using prebiotics in patients with inflammatory bowel disease are limited and focus on only a select few prebiotic substances.

Keywords: Inflammatory bowel disease, Ulcerative colitis, …

Monitoring Pollen Counts And Pollen Allergy Index Using Satellite Observations In East Coast Of The United States, Murat Cagatay Kececi

Electronic Theses and Dissertations

Allergic diseases have become increasingly common over the world during the last four decades, and they are affecting millions of people. Pollination is an important process in the life cycle of plants. However, pollen exposure is associated with allergic diseases such as asthma and seasonal allergic rhinitis (hay fever). As a result, the total annual expenditure for asthma-associated morbidity is about $56 billion in the United States, and the overall cost of allergic diseases is over $18 billion annually. For allergic rhinitis, the annual medical cost is approximately $3.4 billion. The intensity and frequency of the pollen exposures can be …

A Mathematical Investigation On Tumor-Immune Dynamics: The Impact Of Vaccines On The Immune Response, Jonathan Quinonez, Neethi Dasu, Mahboob Qureshi

College of Osteopathic Medicine (TUN) Publications and Research

Mathematical models analyzing tumor-immune interactions provide a framework by which to address specific scenarios in regard to tumor-immune dynamics. Important aspects of tumor-immune surveillance to consider is the elimination of tumor cells from a host’s cell-mediated immunity as well as the implications of vaccines derived from synthetic antigen. In present studies, our mathematical model examined the role of synthetic antigen to the strength of the immune system. The constructed model takes into account accepted knowledge of immune function as well as prior work done by de Pillis et al. All equations describing tumor-immune growth, antigen presentation, immune response, and interaction …

Clinicopathology And Molecular Determinants Underlying Benign Breast And Breast Cancer Lesions, Andreana Holowatyj Holowatyj

Wayne State University Dissertations

Despite converging incidence rates for breast cancers by race, disparities in mortality persist where black women suffer from poorer prognosis compared to white counterparts. To understand the clinical, demographic, and molecular characteristics underlying these disparities, we examined differences among patients with breast cancer to understand the role of human epidermal growth factor receptor 2 (HER2) status, age, and race/ethnicity among women diagnosed with hormone receptor-positive breast cancer, and disparities in surgical therapy among female patients with early stage young-onset breast cancer. Benign breast disease, another known risk factor for breast cancer, includes a histological spectrum of lesions, could contribute to …

Pet Imaging Of Early Therapeutic Response In Solid Tumors, Stephanie J. Blocker

Wayne State University Dissertations

An important pillar of precision medicine for oncology is the ability to identify patients who respond to treatment early into their therapy. Positron emission tomography (PET) allows physicians and researchers to measure changes in tumor behavior prior to noticeable differences in morphology.

Objective: Determine the utility of multiple tracers for PET in assessing early changes in tumor activity that result from treatment.

Methods: Two tracers for PET were studied. 64Cu-labeled liposomes were used to assess changes in liposome delivery two solid colon tumors early into treatment with bevacizumab (Bev). 18F-FMAU thymidine analog (1-(2'-deoxy-2'-fluoro-beta-D-arabinofuranosyl)thymine), was utilized to detect early response to …

Investigation On Genetic Modifiers Of Age At Onset Of Major Depressive Disorder, Huseyin Gedik

Theses and Dissertations

Major Depressive Disorder (MDD) is a complex multifactorial disorder, which would lead to disability. Environmental and genetic factors are involved in MDD etiology. The aim of this project was to identify loci modifying age at onset (AAO) of MDD using survival models after adjusting for Childhood Sexual Abuse (CSA). To achieve this aim, a dataset was made available by the China Oxford and VCU Experimental Research on Genetic Epidemiology (CONVERGE) consortium. The study population had 5,220 controls and 5,282 cases with MDD. We performed two univariate association analyses using Cox Proportional Hazard (Cox PH) models. These two are Full Sample …

Epigenetic Editing To Validate Findings From Methylome-Wide Association Studies Of Neuropsychiatric Disorders, Robin F. Chan

Theses and Dissertations

DNA methylation is necessary for learning, memory consolidation and has been implicated in a number of neuropsychiatric disorders. Obtaining high quality and comprehensive data for the three common forms of methylation in brain is challenging for methylome-wide association studies (MWAS). To address this we optimized a panel of enrichment methods for screening the brain methylome. Results show that these enrichment techniques approach the coverage and fidelity of the current gold standard bisulfite based techniques. Our MBD-based method can also be used with low amounts of genomic material from limited human biomaterials. Psychiatric disorders have high prevalence and are often chronic …

Effects Of Injectable Progestogen Contraception Versus The Copper Intrauterine Device On Hiv Acquisition: Sub-Study Of A Pragmatic Randomised Controlled Trial, G. Justus Hofmeyr, Mandisa Singata-Madliki, Theresa A. Lawrie, Eduardo Bergel, Marleen Temmerman

Obstetrics and Gynaecology, East Africa

Background: Evidence from observational studies suggests an increased risk of HIV acquisition among women using depot medroxyprogesterone acetate (DMPA) contraception.

Methods: Within the context of a South African programme to increase women's access to the intrauterine contraceptive device (IUD), we conducted a pragmatic, open-label, parallel-arm, randomised controlled trial (RCT) of the IUD versus injectable progestogen contraception (IPC) at two South African hospitals. The primary outcome was pregnancy; secondary outcomes included HIV acquisition. Consenting women attending termination of pregnancy services were randomised after pregnancy termination between July 2009 and November 2012. Condoms were promoted for the prevention of sexually transmitted infections. …

Mammary Extracellular Matrix Directs Differentiation Of Testicular And Embryonic Stem Cells To Form Functional Mammary Glands In Vivo, Robert D. Bruno, Jodie M. Fleming, Andrea L. George, Corinne A. Boulanger, Pepper Schedin, Gilbert H. Smith

School of Medical Diagnostics & Translational Sciences Publications

Previously, we demonstrated the ability of the normal mammary microenvironment (niche) to direct non-mammary cells including testicular and embryonic stem cells (ESCs) to adopt a mammary epithelial cell (MEC) fate. These studies relied upon the interaction of transplanted normal MECs with non-mammary cells within the mammary fat-pads of recipient mice that had their endogenous epithelium removed. Here, we tested whether acellular mammary extracellular matrix (mECM) preparations are sufficient to direct differentiation of testicular-derived cells and ESCs to form functional mammary epithelial trees in vivo. We found that mECMs isolated from adult mice and rats were sufficient to redirect testicular derived …

Biofunctionalized Capillary Flow Channel Platform Integrated With 3d Nanostructured Matrix To Capture Circulating Tumor Cells, Shashwat Banerjee, Ganesh Khutale, Vrushali Khobragade, Narendra Kale, Milind Pore, Govind Chate, Archana Jalota-Badhwar, Manoj Dongare, Jayant Khandare

Articles

Circulating tumor cells (CTCs) from peripheral blood account genetic information for cancer diagnosis and overall disease monitoring. Analysis of “liquid biopsy” holds immense promise as it may lead to new approaches for cancer treatment. The study reports effective and continuous flow microchannel system for isolating CTCs using transferrin conjugated 3D matrix synthesized by crosslinking polyethylene glycol-Fe3O4 nanostructures for rapid and efficient capturing of CTCs. The platform provides option of using multiple microchannel units in series that can influence higher cell-capture efficiency due to increasing cell-substrate contact frequency. CTCs are captured with high efficiency even at low concentration of target cells …

Using Tcr Transgenic, Gp100 Reactive T Cells And Checkpoint Inhibition To Target Lymphangioleimyomatosis, Christian Ankney

Master's Theses

Lymphangioleiomyomatosis (LAM) is a low-grade neoplastic disease affecting primarily women. It is characterized by cystic lung disease as well as renal and retroperitoneal tumors called angiomyolipomas and lymphangiomas. Tumor cells have smooth muscle features as well as neuroendocrine cell surface markers, and the disease can be diagnosed by HMB45 staining of tumor cells. We questioned whether expression of melanocytic antigens, specifically gp100, creates an opportunity to treat LAM by adoptive T cell transfer. LAM lung lesions demonstrate poor immune surveillance, therefore adoptive T cell transfer could offer benefits in this disease.

A link was made between melanoma and depigmenting vitiligo …

Reference Intervals For Thyroid Stimulating Hormone And Free Thyroxine Derived From Neonates Undergoing Routine Screening For Congenital Hypothyroidism At A University Teaching Hospital In Nairobi, Kenya: A Cross Sectional Study, Geoffrey Omuse, Ali Kassim, Francis Kiigu, Ra'ana Hussain, Mary Limbe

Pathology, East Africa

Background: In order to accurately interpret neonatal thyroid function tests (TFTs), it is necessary to have population specific reference intervals (RIs) as there is significant variation across different populations possibly due to genetic, environmental or analytical issues. Despite the importance of RIs, globally there are very few publications on RIs for neonatal TFTs primarily due to ethical and technical issues surrounding recruitment of neonates for a prospective study. To the best of our knowledge, this is the first report from Africa on neonatal RIs for TFTs.

Methods: We used hospital based data largely derived from neonates attending the wellness clinic …

Unintended Pregnancies Among Married Women In Sindh Pakistan: Role Of Lady Health Workers, Sumera Aziz Ali, Unaib Rabbani

Community Health Sciences

Background: Unintended pregnancies, which pose substantial risks to both mothers and children, account for 24% of all pregnancies in Pakistan. Door to door visits and service provision by lady health workers (LHWs) may be related to the reduction of such pregnancies, particularly in rural areas. This study aimed to determine the association of knowledge about Lady Health Visitors (LHWs) and door to door visits by LHWs with unintended pregnancies among rural women.
Methods: We conducted a community-based, nested case-control study of 800 pregnant women, identified from the database of an active surveillance mechanism, which registers and follows all pregnant women …

The Effect Of Breastfeeding On The Cognitive And Language Development Of Children Under 3 Years Of Age: Results Of Balochistan-Early Childhood Development Project, Meesha Iqbal Iqbal, Ghazala Rafique, Sumera Aziz Ali

Community Health Sciences

Background: Breastfeeding is known to be an important factor in the overall growth and development of children. Breastfeeding is thought to lead to enhance cognitive and language development of a child. However, this association has not yet been scientifically and statistically established. This study aimed to explore this association in children under 3 years of age.
Methods: This was a secondary data-analysis of the baseline data of “Balochistan – Early Childhood Development Project”. The final sample comprised of 604 children less than 3 years of age. The children were selected by three-stage stratified random sampling from three districts of Balochistan …

Protein Profiling Analysis Of Platelets In Hypercoagulable State Of Β-Thalassemia/Hbe Patients, Puangpaka Chanpeng

Chulalongkorn University Theses and Dissertations (Chula ETD)

β-thalassemia/HbE is an inherited hemolytic anemia caused by defect in β-globin synthesis resulting in accumulation of excess α-globin chains in red blood cells. A hypercogulable state leading to high risk of thromboembolic event is one of the most common complications observed in this disease, particularly in patients with splenectomy. Previous studies suggested that increased platelet activation and coagulation factors in β-thalassemia/HbE intermediate patients promote the hypercoagulable state. However, the hypercoagulable state as well as the molecular mechanism regarding this pathogenesis in β-thalassemia/HbE is not yet well understood. This study aimed to identify proteins related to platelet activation and to hypercoagulable …

Measurement Of Eye Lens Dose In Interventional Radiologist From Tace Procedures Using Osld, Mananchaya Vimolnoch

Chulalongkorn University Theses and Dissertations (Chula ETD)

For routine clinical service at Section of Interventional Radiology, Department of Radiology, King Chulalongkorn Memorial Hospital (KCMH), TACE procedure has been one of the high exposure procedures, which result in increasing eye lens dose in interventional radiologists. Thus, radiation dose should be evaluated in interventional radiology staff who may receive high eye lens dose. Currently, there is insufficient information to comply with the ICRP dose limit on the occupation exposure to the eye lens. One of the factors affecting the eye lens dose is the variation in tube directions in the interventional radiology (IR) laboratories. A preliminary study about tube …

Radiation Dose And Image Quality In Chest Region Using Single- And Dual-Energy Ct: Phantom Study, Taninchai Jutawiriya

Chulalongkorn University Theses and Dissertations (Chula ETD)

Chest CT examinations are routinely performed by using single energy protocol (SE). As CT had been evolved by using dual energy protocol (DE), the patients with underlying lung nodules or pulmonary nodules will be followed up by CT examination several times. The purpose of this study is to study the radiation dose and image quality between single-energy CT (SECT) and dual-energy CT (DECT) protocols in chest phantom at King Chulalongkorn Memorial Hospital. The Lungman Kyoto Kagaku phantom inserted by five simulated lesions of various diameters was scanned by dual-source CT system (Somatom Force, Siemens Healthineers). The acquisition protocols consist of …

การทำงานของกล้ามเนื้อรอบข้อสะโพกและความสูงจากพื้นของเท้าขณะวิ่งเปลี่ยนทิศทางในคนที่มีและไม่มีภาวะความไม่มั่นคงของข้อเท้าเรื้อรัง, วรพงษ์ คงทอง

Chulalongkorn University Theses and Dissertations (Chula ETD)

ภาวะความไม่มั่นคงของข้อเท้าเรื้อรัง (CAI) เป็นผลมาจากการเกิดข้อเท้าแพลงซ้ำ และคนที่มีภาวะ CAI ยิ่งมีความเสี่ยงสูงที่จะเกิดข้อเท้าแพลงซ้ำได้อีก การระบุถึงการเปลี่ยนแปลงที่เกิดขึ้นบริเวณรอบข้อสะโพกร่วมกับการระบุตำแหน่งของเท้าในคนที่มีภาวะ CAI ขณะมีการเคลื่อนไหว จะเป็นประโยชน์ในการฟื้นฟูคนที่มีภาวะ CAI ได้อย่างมีประสิทธิภาพมากขึ้น ดังนั้นในการศึกษานี้จึงมีวัตถุประสงค์ที่จะศึกษาการทำงานของกล้ามเนื้อรอบข้อสะโพก (hip muscle activities) และความสูงจากพื้นของเท้า (foot clearance) ในช่วง terminal swing phase ขณะวิ่งเปลี่ยนทิศทางในคนที่มีและไม่มีภาวะ CAI โดยมีผู้เข้าร่วมวิจัยเป็นนักกีฬาที่มีภาวะ CAI 22 คน และนักกีฬาที่ไม่มีภาวะ CAI 22 คน ทุกคนจะได้รับการติด surface electrode EMG ที่กล้ามเนื้อรอบข้อสะโพกข้างที่มีภาวะ CAI ในกลุ่ม CAI และข้างถนัดในกลุ่ม control เพื่อบันทึกข้อมูล muscle activity และติด reflective marker ที่ขาท่อนล่างและเท้าทั้งสองข้าง เพื่อบันทึกความสูงจากพื้นของเท้า จากนั้นผู้เข้าร่วมวิจัยวิ่งเปลี่ยนทิศทางด้วยความเร็ว 3.5 - 5 เมตรต่อวินาที ผลการศึกษาพบว่า percent change of muscle activation ของกล้ามเนื้อ Adductor Magnus กล้ามเนื้อ Gluteus Medius และกล้ามเนื้อ Tensor Fascia Latae มีความแตกต่างกันอย่างมีนัยสำคัญทางสถิติ (p < 0.05) ระหว่างกลุ่ม CAI และกลุ่ม control และค่าความสูงจากพื้นของเท้าในกลุ่ม CAI มีค่าน้อยกว่ากลุ่ม control อย่างมีนัยสำคัญทางสถิติ (p < 0.05) ผลการศึกษาทำให้ทราบว่า คนที่มีภาวะ CAI มีความสูงจากพื้นของเท้าต่ำกว่าคนที่ไม่มีภาวะ CAI ขณะวิ่งเปลี่ยนทิศทาง ส่งผลให้กล้ามเนื้อรอบข้อสะโพกทำงานมากขึ้นเพื่อชดเชยภาวะดังกล่าว และเพื่อลดความเสี่ยงในการเกิดข้อเท้าแพลงซ้ำ ดังนั้นในโปรแกรมการฟื้นฟูผู้ป่วยที่มีภาวะ CAI จึงควรให้ความสำคัญกับการฝึกกล้ามเนื้อรอบข้อสะโพก รวมถึงการให้ความสำคัญกับตำแหน่งของเท้าในขณะเคลื่อนไหวด้วย

ผลของการออกกำลังกายต่อการไหลเวียนเลือดที่แขนในภาวะน้ำตาลในเลือดสูงหลังรับประทานอาหารในผู้ที่มีความดันโลหิตปกติซึ่งเป็นทายาทของผู้ที่มีความดันโลหิตสูง, วิไลวรรณ จุฑาภักดีกุล

Chulalongkorn University Theses and Dissertations (Chula ETD)

วัตถุประสงค์ เพื่อศึกษาผลของการออกกำลังกายที่ระดับความหนักสูงสลับกับปานกลาง ต่อการไหลเวียนเลือดที่แขนในชายสุขภาพดีที่มีความดันโลหิตปกติและเป็นทายาทของผู้ที่มีความดันโลหิตปกติ (ONT) (n=13) เปรียบเทียบกับชายสุขภาพดีที่มีความดันโลหิตปกติและเป็นทายาทของผู้ที่มีความดันโลหิตสูง (OHT) (n=13) ซึ่งการวิจัยเป็นเชิงทดลองแบบสุ่มข้ามกลุ่ม โดยสุ่มแยกอาสาสมัครในแต่ละกลุ่มออกเป็น 2 แบบ โดยแบบที่ 1 ออกกำลังกายก่อนรับประทานน้ำตาล จากนั้นอย่างน้อย 1 สัปดาห์ ตามด้วยการรับประทานน้ำตาลเพียงอย่างเดียว ซึ่งการทดสอบแบบที่ 2 ทำสลับกับแบบที่ 1 โดยอาสาสมัครทั้งหมดได้รับการวัดระดับสูงสุดของการไหลเวียนเลือดที่แขน ก่อนและภายหลังการรับประทานน้ำตาลทุกๆ 30 นาทีจนครบ 4 ชั่วโมงพบว่า หลังการรับประทานน้ำตาลอย่างเดียว ระดับสูงสุดของการไหลเวียนเลือดที่แขนลดลงอย่างมีนัยสำคัญทางสถิติ ในกลุ่ม OHT (23.82±1.39 ml/100ml/min เป็น 20.61±1.75 ml/100ml/min, p<0.01) และในกลุ่ม ONT (26.84±2.47 ml/100ml/min เป็น 24.29±2.58 ml/100ml/min, p<0.01) และการออกกำลังกายก่อนรับประทานน้ำตาลพบว่า ระดับสูงสุดของการไหลเวียนเลือดที่แขนเพิ่มขึ้นอย่างมีนัยสำคัญทางสถิติ ในกลุ่ม OHT (23.72±1.68 ml/100ml/min เป็น 27.25±1.91 ml/100ml/min, p<0.01) และในกลุ่ม ONT (26.74±2.86 ml/100ml/min เป็น 34.07±2.14 ml/100ml/min, p<0.01) ตามลำดับ และเมื่อเปรียบเทียบระหว่างกลุ่ม พบว่าเมื่อกลุ่ม OHT มีค่าระดับสูงสุดของการไหลเวียนเลือดที่แขนเพิ่มขึ้นน้อยกว่ากลุ่ม ONT อย่างมีนัยสำคัญทางสถิติ (p<0.05) จึงสรุปได้ว่าการออกกำลังกายที่ระดับความหนักสูงสลับกับปานกลาง สามารถเพิ่มระดับสูงสุดของการไหลเวียนเลือดที่แขนในภาวะน้ำตาลในเลือดสูงหลังรับประทานน้ำตาล ในคนที่มีความดันโลหิตปกติทั้งที่มีและไม่มีประวัติความดันโลหิตในครอบครัว

"C-Terminal Binding Protein 2" An Emerging Oncogene In Colon And Pancreatic Cancers, Ayesha Chawla

Theses and Dissertations

The C terminal binding proteins (CtBP) 1 and 2 are a family of transcriptional co-repressors overexpressed in a variety of cancers, and are frequently associated with poor prognosis and chemoresistance. CtBP has also been characterized in cell culture models as drivers of migration/invasion and epithelial-mesenchymal transition. CtBP mediates its transcriptional corepressor activity via its dehydrogenase domain, and inhibition of this domain interferes with CtBP oncogenic functions. The role of CtBP in APC mutant neoplasia remains obscure even though APC is responsible for degradation of both β-catenin and CtBP in suppressing colorectal tumorigenesis. Our prior work demonstrated that CtBP proteins can …

Tissue Factor Expression, Regulation, And Signaling In Human Airway Cells, Michael D. Davis

Theses and Dissertations

Rationale: Tissue Factor (TF) is a transmembrane glycoprotein that canonically functions as the initiator of the coagulation cascade. Increased levels of TF have been associated with inflammatory airway diseases. Since lipopolysaccharide (LPS) is known to elicit and inflammatory response in airway epithelium, we hypothesized that airway epithelial cells release TF when exposed to LPS. Since TF aids in local wound healing, we also hypothesized that inhibition of TF would decrease NHBE growth. The specific aim of this work was to evaluate the effects of LPS exposure on TF production and release from airway epithelia and determine the signaling pathways involved. …

Rapid Detection Of In Vitro Antituberculous Drug Resistance Among Smear-Positive Respiratory Samples Using Microcolony Detection-Based Direct Drug Susceptibility Testing Method, Irim Iftikhar, Seema Irfan, Joveria Farooqi, Zahida Azizullah, Rumina Hasan

Department of Pathology and Laboratory Medicine

Background: With the rise in multidrug-resistant tuberculosis, there is a search for newer techniques that will rapidly detect drug-resistant Mycobacterium tuberculosis. Although molecular techniques can detect resistance, culture is still considered gold standard, especially in resource-limited settings where quick, cheap, and easy techniques are needed. The aim of the study was to evaluate microcolony method thin layer agar (TLA) for quick detection of resistance against the first- and second-line antituberculous drugs in clinical isolates. This was a cross-sectional study performed at Aga Khan University Hospital.
Material and Methods: A total of 87 Z-N stain smear-positive pulmonary samples were received and …

Advancing Vibrational Spectroscopy For Cellular And Sub Cellular Analysis: Raman Spectroscopy As An In Vitro Chemotherapeutic Screeening And Assessment Protocol, Zeineb Farhane

Doctoral

Vibrational spectroscopy, including Raman micro-spectroscopy, has attracted considerable attention over the last few years, as a powerful, non-invasive tool for clinical applications, especially in cancer diagnosis, in vivo and ex vivo. As a molecular fingerprinting technique with optical resolution, Raman micro-spectroscopy is able to monitor biochemical processes, drug uptake, efficacy and mode of action and mechanisms of interaction of chemotherapeutic drugs at a subcellular level. In vitro applications may be more strategically achievable, and can help guide drug design and discovery, and eventually evaluate To this end, different lung cell lines were used and Raman micro-spectroscopy was coupled to valuable …