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2019

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Articles 15841 - 15870 of 16114

Full-Text Articles in Medicine and Health Sciences

Use Of Digital Panoramic Radiographs As A Screening Tool For Diagnosis Of Osteoporosis In Thai Postmenopausal Women, Net-Nada Chongruangsri Jan 2019

Use Of Digital Panoramic Radiographs As A Screening Tool For Diagnosis Of Osteoporosis In Thai Postmenopausal Women, Net-Nada Chongruangsri

Chulalongkorn University Theses and Dissertations (Chula ETD)

Purpose: To investigate the correlation between panoramic radiographic indices and osteoporosis, and to determine whether digital panoramic radiographs could be used as a screening tool for the diagnosis of osteoporosis in Thai postmenopausal women. Materials and Methods: A cross-sectional study of sixty Thai postmenopausal women with and without osteoporosis. The subjects were divided into three groups based on diagnosis by dual-energy X-ray absorptiometry (DXA): normal, osteopenia, and osteoporosis equally in each group. The panoramic radiographic indices measured were mental index (MI) and mandibular cortical index (MCI). Pearson’s correlation test was performed to analyze any correlation between MI, MCI, and BMD …

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Association Between Clinical Signs And Quality Of Life In Thai Patients With Oral Lichen Planus, Sasirin Yiemstan Jan 2019

Association Between Clinical Signs And Quality Of Life In Thai Patients With Oral Lichen Planus, Sasirin Yiemstan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Subjective patient’s symptoms and oral health-related quality of life (OHRQoL) were recommended to be involved in oral lichen planus (OLP) studies. Objectives: to evaluate 1) the association between OLP clinical signs and OHRQoL as well as pain perception. 2) the association between OLP pain and OHRQoL. Methods: Sixty-nine OLP or oral lichenoid drug reaction (OLDR) Thai patients were recruited. Data were collected through personal interview with the Numeric Rating Scale (NRS) and Thai version of Oral Impacts on Daily Performance (OIDP) index. OLP signs were examined in aspects of localization, type and clinical severity according to the Thongprasom sign scoring …

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Clinical Evaluation Of Two Glass Ionomer Cement Restorations Placed In Primary Molars With Atraumatic Restorative Treatment Technique: A Randomized Controlled Trial., Manarin Boonyawong Jan 2019

Clinical Evaluation Of Two Glass Ionomer Cement Restorations Placed In Primary Molars With Atraumatic Restorative Treatment Technique: A Randomized Controlled Trial., Manarin Boonyawong

Chulalongkorn University Theses and Dissertations (Chula ETD)

Objective: The purpose of this study was to compare clinical success of a novel material (silver diamine fluoride incorporated with high-viscosity glass ionomer cement (SDF-GIC)) in Class II restoration in primary molars using atraumatic restorative treatment (ART) technique at 6- and 12- month follow-up. Materials and Methods: A randomized controlled clinical trial using a parallel group design was carried out on 150 children aged 3-8 years old, from 5 public school in Samut Sakhon province, Thailand, with at least one class II cavities. They were randomly allocated to two treatment groups: ART restoration using either GIC (Fuji IX GP) or …

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Protein Expression And Inflammatory Response After Delivery Of Mrna Encoding Platelet-Derived Growth Factor-Bb In Sucrose Citrate Buffer Into Rat Gingiva, Phan Bhongsatiern Jan 2019

Protein Expression And Inflammatory Response After Delivery Of Mrna Encoding Platelet-Derived Growth Factor-Bb In Sucrose Citrate Buffer Into Rat Gingiva, Phan Bhongsatiern

Chulalongkorn University Theses and Dissertations (Chula ETD)

Messenger RNA (mRNA) has emerged as a novel therapeutic modality in medical fields, including regenerative medicine. The concept of mRNA-based therapy is to use synthesized mRNA encoding therapeutic protein delivered to target tissue. Thus, mRNA encoding growth factor could be a promising alternative to recombinant protein. Platelet-derived growth factor (PDGF) is one of most extensively studied growth factors for periodontal regeneration. To date, mRNA therapy has never been explored in the field of periodontal regeneration. The aim of the study is to examine the effect of nucleoside-modified mRNA encoding PDGF-BB on the level of PDGF-BB protein and inflammatory response at …

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The Use Of Modified Mrna Encoding Platelet-Derived Growth Factor-Bb As An Innovation In Periodontal Regeneration, Theeraphat Surisaeng Jan 2019

The Use Of Modified Mrna Encoding Platelet-Derived Growth Factor-Bb As An Innovation In Periodontal Regeneration, Theeraphat Surisaeng

Chulalongkorn University Theses and Dissertations (Chula ETD)

Since the mRNA platform has been recently introduced to several fields in medicine and the achievement of periodontal regeneration is currently unpredictable, therefore, the use of mRNA technology is a promising approach to pursue the complete periodontal regeneration. The aims of this study are to learn if mRNA encoding platelet-derived growth factor-BB (PDGF-BB) induces PDGF production in human periodontal ligament cells (PDLCs) and to investigate the effect of secreted PDGF on PDLC proliferation and promoting endothelial cell tube formation. PDLCs were obtained from extracted teeth of healthy periodontal patients. The N1-methylpseudouridine modified mRNA encoding PDGF-BB were transfected into PDLCs. The …

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Effects Of Sulodexide In The Prevention Of Peritoneal Membrane Changes In Continuous Ambulatory Peritoneal Dialysis Patients, Panida Ditsawanon Jan 2019

Effects Of Sulodexide In The Prevention Of Peritoneal Membrane Changes In Continuous Ambulatory Peritoneal Dialysis Patients, Panida Ditsawanon

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objective of this placebo-controlled clinical study is to determine the effect of sulodexide for the prevention of peritoneal membrane change in PD patients by evaluating dialysate biomarkers of peritoneal membrane change, phenotypes of peritoneal mesothelial cells, peritoneal membrane transports and safety. A total of 66 patients were included in this randomized control trial study. Patients were randomly assigned to receive either 50 mg of sulodexide or placebo by oral 2 times daily. PET was performed to evaluate peritoneal transport function. Dialysate CA125, IL-6 and VEGF concentration were also measured at baseline and after treatment by ELISA. Peritoneal mesothelial cell …

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Taxonomy, Bioactivities, And Secondary Metabolites Of Endophytic Actinomycetes Isolated From Medicinal Plants, Nattaporn Klykleung Jan 2019

Taxonomy, Bioactivities, And Secondary Metabolites Of Endophytic Actinomycetes Isolated From Medicinal Plants, Nattaporn Klykleung

Chulalongkorn University Theses and Dissertations (Chula ETD)

Fifty endophytic actinomycetes isolated from six medicinal plants in Thailand were identified as Micromonospora (34 strains), Streptomyces (8 strains), Microbispora (3 strains), Nonomuraea (2 strains), Plantactinospora (2 strains), and Amycolatopsis (1 strain) based on phenotypic characteristics and 16S rRNA gene sequencing. Fifteen strains exhibited antimicrobial activity against Gram-positive bacteria. Strain CR1-09T, proposed as Microbispora cathalanthi sp. nov. was active against Staphylococcus aureus ATCC 6538 and Kocuria rhizophila ATCC 9341. Streptomyces sp. 3MP-10 and 3MP-14, novel species were active against S. aureus ATCC 6538, K. rhizophila ATCC 9341, and Bacillus subtilis ATCC 6633. Strains CR1-09T and PA1-07 showed cytotoxicity against HepG2 …

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Physicochemical, Permeability, Antioxidant And Anti-Inflammatory Properties Of Oxyresveratrol Ester Prodrugs, Wuttinont Thaweesest Jan 2019

Physicochemical, Permeability, Antioxidant And Anti-Inflammatory Properties Of Oxyresveratrol Ester Prodrugs, Wuttinont Thaweesest

Chulalongkorn University Theses and Dissertations (Chula ETD)

Oxyresveratrol (OXY) is known to exert antioxidant and anti-inflammatory properties but has low oral bioavailability in rats and low permeability in the Caco-2 cell monolayer model. Three ester prodrugs with different acyl chain lengths (oxyresveratrol tetraacetate (OXY-TAc), oxyresveratrol tetrapropionate (OXY-TPr), and oxyresveratrol tetrabutyrate (OXY-TBu) were synthesized to improve the permeability of OXY. Transport of three OXY ester prodrugs across Caco-2 monolayers was higher than that of OXY, and OXY-TAc exhibited the highest permeation. The degradation of OXY-TAc in HCl buffer (pH 1.2), phosphate buffer (pH 6.8 and 7.4), simulated gastric and intestinal fluids, as well as human plasma at 37 …

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In Vitro Hepatic Metabolism Of Curcumin Diethyl Disuccinate In Different Animal Species, Ponsiree Jithavech Jan 2019

In Vitro Hepatic Metabolism Of Curcumin Diethyl Disuccinate In Different Animal Species, Ponsiree Jithavech

Chulalongkorn University Theses and Dissertations (Chula ETD)

Curcumin diethyl disuccinate (CDD) is an ester prodrug of the active compound, curcumin. CDD has been improved chemical stability and intestinal permeability more than curcumin. CDD demonstrated biological activity higher than curcumin. The aim of this study is to investigate a suitability of using liver S9 fraction (LS9) in drug metabolism profiling as function of animal sources of enzyme regarding possible translation of in vitro outcome to clinical study. The metabolites, in vitro kinetics and esterase enzyme involved in CDD hydrolysis by LS9 of human, monkey, dog and rat ware determined. The high-performance liquid chromatography conjugated with high-resolution mass spectrometry-based …

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Production Optimization Of Recombinant Human Vascular Endothelial Growth Factor In Tobacco (Nicotiana Benthamiana), Christine Joy I. Bulaon Jan 2019

Production Optimization Of Recombinant Human Vascular Endothelial Growth Factor In Tobacco (Nicotiana Benthamiana), Christine Joy I. Bulaon

Chulalongkorn University Theses and Dissertations (Chula ETD)

Molecular pharming represents the innovative development of plants as alternative production platforms for recombinant proteins. Human vascular endothelial growth factor (VEGF) is one of the growth factors that has displayed eminent roles in wound healing. This study aimed to develop optimized expression conditions and rapid production of recombinant VEGF in Nicotiana benthamiana. Herein, four plant expression constructs, particularly pBYR2e-SP-VEGF-His-SEKDEL (S-V-H-K), pBYR2e-SP-VEGF-His (S-V-H), pBYR2e-SP-His-VEGF-SEKDEL (S-H-V-K) and pBYR2e-SP-His-VEGF (S-H-V), were utilized and inserted into geminiviral vector pBYR2e-K2Md for transient expression in N. benthamiana. The expression level of all the four constructs was examined and the optimal harvest time for high protein expression …

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Development Of Mucoadhesive Biloniosome Nanoparticles For Enhanced Gastrointestinal Absorption Of Cordycepin, Warut Kengkittipat Jan 2019

Development Of Mucoadhesive Biloniosome Nanoparticles For Enhanced Gastrointestinal Absorption Of Cordycepin, Warut Kengkittipat

Chulalongkorn University Theses and Dissertations (Chula ETD)

Cordycepin, an adenosine analogue, has displayed numerous pharmacological and therapeutic implications including enhanced apoptosis and inhibition of proliferation of cancer cells, antioxidant property and improving sexual activity. However, oral administration of cordycepin has limited practical use due to its poor bioavailability in the intestine. Here, we developed a novel hybrid nanoparticle system for effective delivery of cordycepin in the gastrointestinal tract by using the bile salt-based liposome/niosome hybrid system (designated as biloniosome). In addition, mucoadhesive chitosan biopolymer was coated on the biloniosome nanoparticles to improve the mucoadhesive properties thereby enhancing the drug efficiency. Cordycepin-encapsulated biloniosome nanoparticles were synthesized by solvent …

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Dna Barcoding Coupled With High Resolution Melting (Bar-Hrm) Analysis For Differentiation White Kwao Khruea (Pueraria Candollei), Black Kwao Khruea (Mucuna Macrocarpa), And Red Kwao Khruea (Butea Superba), Nonthapon Vejpanich Jan 2019

Dna Barcoding Coupled With High Resolution Melting (Bar-Hrm) Analysis For Differentiation White Kwao Khruea (Pueraria Candollei), Black Kwao Khruea (Mucuna Macrocarpa), And Red Kwao Khruea (Butea Superba), Nonthapon Vejpanich

Chulalongkorn University Theses and Dissertations (Chula ETD)

Kwao Khruea is the herbal product that known as a rejuvenation herb. In Thai traditional medicine, three species of Kwao Khruea including white Kwao Khruea (Pueraria candollei Wall. ex Benth.), black Kwao Khruea (Mucuna macrocarpa Wall.) and red Kwao Khruea (Butea superba Roxb. ex Willd.) have been used. Each Kwao Khruea accumulates different chemical constituents. White Kwao Khruea contains estrogenic biological activities while black and red Kwao Khruea accumulate testosterone-like activities. Black Kwao Khruea was reported to be potent than red Kwao Khruea. Because of similar common names with the difference in chemical compositions of Kwao Khruea herbs, it is …

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Free Radical Scavenging Compounds From Dendrobium Lindleyi, Pichayatri Khoonrit Jan 2019

Free Radical Scavenging Compounds From Dendrobium Lindleyi, Pichayatri Khoonrit

Chulalongkorn University Theses and Dissertations (Chula ETD)

Free radicals lead to oxidative stress which plays an important role in the development of many diseases. Dendrobium lindleyi belongs to Dendrobium, a genus the secondary metabolites of which were reported as free radical scavenging compounds. However, the bioactivity of D. lindleyi has never been revealed. In this study, the EtOAc extract of D. lindleyi was fractionated to give five pure compounds identified by spectroscopic techniques as a new constituent named 4,5-dihydroxy-3,3′,4′-trimethoxybibenzyl along with four known compounds including chrysotoxine, gigantol, cypripedin, and moscatilin. DPPH radical, superoxide radical, and ORAC assay were performed to evaluate their radical scavenging activities. Chrysotoxine, gigantol, …

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Synthesis And Characterization Of Polyethylene Glycol-Doxorubicin Conjugates Containing Β-Thiopropanamide Linkers For Enhanced Selective Cytotoxicity Against Breast Cancer Cells, Wiwat Supasena Jan 2019

Synthesis And Characterization Of Polyethylene Glycol-Doxorubicin Conjugates Containing Β-Thiopropanamide Linkers For Enhanced Selective Cytotoxicity Against Breast Cancer Cells, Wiwat Supasena

Chulalongkorn University Theses and Dissertations (Chula ETD)

Doxorubicin (DOX) is a chemotherapeutic agent that suffers from its severe adverse effects due to non-selective cytotoxicity. This study aims to design novel beta-thiopropanamide linkers (-S-CH2-C(R)H-CONH-) for DOX conjugation to promote cancer cell selectivity and cytotoxicity. Two series of DOX conjugates with various beta-thiopropanamide linkers were synthesized and evaluated for their cytotoxic selectivity. The first series contains 7 DOX analogues with different beta-thiopropanamide linkers. The DOX analogues were synthesized using ethyl thioglycolate and acrylic acid analogues to establish a series of beta-thiopropanamide linkages with DOX, and the potential linkers were intended to be incorporated in polymer-DOX conjugates. The other series …

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Development Of Cyclodextrin-Based Pickering Nanoemulsion Containing Amphotericin B For Treatment Of Fungal Keratitis, Phyo Darli Maw Jan 2019

Development Of Cyclodextrin-Based Pickering Nanoemulsion Containing Amphotericin B For Treatment Of Fungal Keratitis, Phyo Darli Maw

Chulalongkorn University Theses and Dissertations (Chula ETD)

The purpose of this study was to develop pickering nanoemulsions (NEs) containing amphotericin B (AmB) for fungal keratitis therapy. The phase-solubility profiles of AmB in various aqueous cyclodextrin (CD) solutions were determined. The AmB solubilization in oils and surfactants was also examined. Two CDs i.e., gCD and 2-hydroxypropyl-g-CD (HPgCD), medium-chain triglycerides (MCT oil) and phosphatidylcholine (lecithin) were chosen because of their high solubility increment of AmB. Solution-state by 1H-NMR studies demonstrated the formation of MCT oil/αCD, AmB/gCD and AmB/HPgCD complexes. Some interactions between AmB and CD have been observed by solid-state characterizations (FT-IR, PXRD and DSC). The interfacial tension at …

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Expression Of Human Dentin Matrix Protein 1 In Escherichia Coli And Nicotiana Benthamiana And Their Effect On Proliferation And Osteogenic Differentiation Of Human Periodontal Ligament Stem Cells, Aktsar Roskiana Ahmad Jan 2019

Expression Of Human Dentin Matrix Protein 1 In Escherichia Coli And Nicotiana Benthamiana And Their Effect On Proliferation And Osteogenic Differentiation Of Human Periodontal Ligament Stem Cells, Aktsar Roskiana Ahmad

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study aimed to express recombinant protein human Dentin Matrix Protein 1 (hDMP1) in Escherichia coli and Nicotiana benthamiana and investigated the osteogenic differentiation effects in human Periodontal Ligament Stem Cells (hPDLSCs). The gene encoding hDMP1 was ligated into the pET22b and pBY2R2e expression vectors. Recombinant hDMP1 protein has been productively expressed in E. coli and N. benthamiana. E. coli-produced hDMP1 resulted in 60 kDa and 100, and the optimal condition to produce highly expression was demonstrated at 0.5 mM IPTG and incubation at 37oC for 6 hr. N. benthamiana-produced hDMP1 protein showed in a 100 kDa that indicated the …

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Cytotoxic Effects Of Mansonone G And Ethoxy Mansonone G From Mansonia Gagei Drumm In Non-Small Cell Lung Cancer, Arachawipa Wannachote Jan 2019

Cytotoxic Effects Of Mansonone G And Ethoxy Mansonone G From Mansonia Gagei Drumm In Non-Small Cell Lung Cancer, Arachawipa Wannachote

Chulalongkorn University Theses and Dissertations (Chula ETD)

Mansonones are naphthoquinone-containing compounds extracted from the heartwood of Mansonia gagei. Several studies have reported that mansonones have various pharmacological activities such as antibacterial, antifungal, antioxidant, antiestrogenic, antiadipogenic and anticancer effects. A previous study reported that ether analogues of mansonone G (MG), a major compound isolated from Mansonia gagei Drumm, displayed higher antibacterial and antiadipogenic activities than parent MG. However, the anticancer activities of MG and ethoxy MG (EMG) on lung cancer cells have never been investigated. This study aimed to determine cytotoxic activities of MG and EMG and the underlying mechanism(s) in two non-small cell lung cancer cell lines, …

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Inhibitory Effects Of Compounds Isolated From Ethyl Acetate Extracts Of Glycosmis Parva Branches And Leaves On Lps-Induced Raw 264.7 Macrophage Activation, Chanyanuch Laprasert Jan 2019

Inhibitory Effects Of Compounds Isolated From Ethyl Acetate Extracts Of Glycosmis Parva Branches And Leaves On Lps-Induced Raw 264.7 Macrophage Activation, Chanyanuch Laprasert

Chulalongkorn University Theses and Dissertations (Chula ETD)

Macrophages play major roles to produce several inflammatory mediators in many chronic inflammatory diseases. Current anti-inflammatory drugs target these mediators to alleviate inflammation symptoms. Searching for new anti-inflammatory agents is always needed due to problems from currently used anti-inflammatory drugs. This study aimed to investigate the anti-inflammatory potential of three main compounds, arborinine, N-methylatalaphylline and S-deoxydihydroglyparvin (DDGP), isolated from Glycosmis parva leaves and branches on lipopolysaccharide (LPS)-activated macrophage RAW 264.7 cells. Only DDGP demonstrated a potent inhibitor of LPS-activated macrophages. It inhibited expression of inducible nitric oxide synthase and decreased nitric oxide production with IC50 3.47 ± 0.1 µM. It …

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Phytochemicals With Α-Glucosidase Inhibitory Activity From Cissus Javana, Dendrobium Christyanum, Gastrochilus Bellinus And Huberantha Jenkinsii, Htoo Tint San Jan 2019

Phytochemicals With Α-Glucosidase Inhibitory Activity From Cissus Javana, Dendrobium Christyanum, Gastrochilus Bellinus And Huberantha Jenkinsii, Htoo Tint San

Chulalongkorn University Theses and Dissertations (Chula ETD)

Phytochemical investigations of Cissus javana DC., Dendrobium christyanum Rchb. f., Gastrochilus bellinus Rchb. f. Kuntze and Huberantha jenkinsii (Hook. f. & Thomson) Chaowasku led to the isolation of twenty-seven compounds, six of which were new naturally occurring compounds. From Cissus javana, three known compounds were isolated, including bergenin, stigmast-4-en-3-one, and β-sitosterol. From Dendrobium christyanum, thirteen known compounds were identified, namely, n-eicosyl trans-ferulate, n-docosyl 4-hydroxy-trans-cinnamate, 4,5-dihydroxy-2-methoxy-9,10-dihydrophenanthrene, moscatilin, aloifol I, gigantol, batatasin III, dendrosinen B, coniferyl aldehyde, methyl haematommate, atraric acid, vanillin and diorcinolic acid. From Gastrochilus bellinus, four new compounds, comprising three phenanthropyrans and a phenanthrene derivative, were isolated and structurally …

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Effects Of Rhinacanthin-C In Multidrug-Resistance Breast Cancer Cells, Suwichak Chaisit Jan 2019

Effects Of Rhinacanthin-C In Multidrug-Resistance Breast Cancer Cells, Suwichak Chaisit

Chulalongkorn University Theses and Dissertations (Chula ETD)

Rhinacanthin-C (RN-C) is a major bioactive naphthoquinone ester found in Rhinacanthus nasutus Kurz (Acanthaceae). This compound has potential therapeutic value as an anticancer agent. Rhinacanthin-C was reported to enhance doxorubicin cytotoxicity in breast cancer cells through direct inhibition of P-gp activity. However, its ability in reversing multidrug resistance (MDR) in cancer cells through the down-regulation of P-gp expression, alteration of detoxification system, and increase in apoptosis proteins remains unreported. Thus, this study was to investigate the potential MDR reversal effect of rhinacanthin-C and its underlying mechanisms in MCF-7/DOX. In this study, rhinacanthin-C (1 µM, 48 h) significantly enhanced cytotoxicity of …

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Bioengineered Regenerative Therapy For Diabetes Mellitus: Establishment Of Canine Mesenchymal Stem Cell-Derived Insulin Producing Cells, Watchareewan Rodprasert Jan 2019

Bioengineered Regenerative Therapy For Diabetes Mellitus: Establishment Of Canine Mesenchymal Stem Cell-Derived Insulin Producing Cells, Watchareewan Rodprasert

Chulalongkorn University Theses and Dissertations (Chula ETD)

Trend of regenerative therapy for diabetes in human and veterinary practice has conceptually been proven according to Edmonton protocol and animal models. Establishing an alternative insulin-producing cell (IPC) resource is a challenge task for further clinical application. In this study, IPC generation from two practical canine mesenchymal stem cells (cMSCs), canine bone marrow-derived MSCs (cBM-MSCs) and canine adipose-derived MSCs (cAD-MSCs), was of interest. The results illustrated that cBM-MSCs and cAD-MSCs contained distinct pancreatic differentiation potential and required the tailor-made induction protocols. Generation of functional cBM-MSC-derived IPCs needed an integration of genetic and microenvironment manipulation using hanging-drop culture of PDX-1-transfected cBM-MSCs …

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Association Between Nat2 Polymorphisms And Anti-Tuberculosis Drug-Induced Liver Injury In Myanmar Patients In Thailand, Khin Sandi Thaw Jan 2019

Association Between Nat2 Polymorphisms And Anti-Tuberculosis Drug-Induced Liver Injury In Myanmar Patients In Thailand, Khin Sandi Thaw

Chulalongkorn University Theses and Dissertations (Chula ETD)

The aims of this study were to determine the N-acetyl transferase 2 (NAT2) genetic distribution of Myanmar tuberculosis (TB) patients and evaluate the association of NAT2 polymorphisms and antituberculosis drug-induced liver injury (AT-DILI) in Myanmar patients. A case-control study was conducted in adult Myanmar TB patients at Samut Sakorn Hospital. Fifty-four patients who completed anti-TB treatment without liver injury (controls) and five patients with AT-DILI during their anti-TB treatment (cases) were enrolled. Patients’ baseline characteristics, anti-TB doses, and liver enzyme levels were collected from the hospital’s record. Blood samples were collected and four NAT2 SNPs, rs1041983, rs1799929, rs1799930, and rs1799931, …

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Effect Of Gigantol On Tumorigenicity Of Non-Small Cell Lung Cancer Cells Via Cancer Stem Cell Signal Suppression, Nattanan Losuwannarak Jan 2019

Effect Of Gigantol On Tumorigenicity Of Non-Small Cell Lung Cancer Cells Via Cancer Stem Cell Signal Suppression, Nattanan Losuwannarak

Chulalongkorn University Theses and Dissertations (Chula ETD)

Lung cancer is a major cause of cancer-related death. Tumor growth is a fundamental process of cancer progression. Vital characteristics that potentiate tumor growth are cancer stem cell (CSC) and enhance cell proliferation. Previous studies reported that targeting on CSC-promoting pathways or proliferative signals was a promising strategy in cancer treatment. Gigantol, a bibenzyl compound from Dendrobium draconis, was reported to have a suppressive activity on CSC phenotypes, in vitro. However, the effects of gigantol on tumorigenicity in vivo, cancer cell proliferation and related CSC-promoting and proliferation regulatory mechanisms have not been explored. In this study, ectopic tumor xenograft in …

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N, N-Bis (5-Ethyl-2-Hydroxybenzyl) Methylamine Induces Apoptosis Of Non-Small Cell Lung Cancer Cells Via C-Myc Protein Degradation, Nicharat Sriratanasak Jan 2019

N, N-Bis (5-Ethyl-2-Hydroxybenzyl) Methylamine Induces Apoptosis Of Non-Small Cell Lung Cancer Cells Via C-Myc Protein Degradation, Nicharat Sriratanasak

Chulalongkorn University Theses and Dissertations (Chula ETD)

Lung cancer is a common cancer disease that contributes as a major cause of cancer related death. The oncoprotein, c-Myc plays a major role in oncogenic malignancies. It has been shown that the up—regulated c-Myc relates with aggressiveness of cancers and treatment failure. In this study, we purposed N, N-bis (5-ethyl-2-hydroxybenzyl) methylamine (EMD), a benzoxazine dimer to be a novel c-Myc targeting compound and displayed evidence presenting the potential effect of EMD on c-Myc degradation in human lung cancer cells. EMD exhibited cytotoxicity to lung cancer cells through apoptosis induction. EMD dramatically eliminated c-Myc in the cells and initiated caspase-dependent …

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Cross-Cultural Adaptation And Psychometric Properties Of The Thai Version Of The University Of Washington - Pain Related Self-Efficacy Scale 6 (Uw-Prse6), Angkana Khampanthip Jan 2019

Cross-Cultural Adaptation And Psychometric Properties Of The Thai Version Of The University Of Washington - Pain Related Self-Efficacy Scale 6 (Uw-Prse6), Angkana Khampanthip

Chulalongkorn University Theses and Dissertations (Chula ETD)

Objective: To cross-culturally adapt the University of Washington Pain related Self-Efficacy Scale (UW-PRSE6) into Thai and evaluate its psychometric properties. Methods: The original UW- PRSE6 was cross-culturally adapted using the Functional Assessment of Chronic Illness Therapy translation methodology. 241 individuals with chronic low back pain completed the Thai version of UW-PRSE6 (T-UW-PRSE6), Thai Fear Avoidance Beliefs Questionnaire (T-FABQ), and Thai Medical Outcome Study Short-Form 36 (T-SF-36). 241 participants completed the T-UW-PRSE6 and again after 7-days interval. 152 participants rated their overall condition as having little to no change at the second assessment. Cronbach’s alpha and intraclass correlation coefficients were calculated …

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Factors Of Age, Anthropometric Characteristics And Lower Extremity Strength On Multi-Directional Reach Test In Typical Children Aged 7 - 12 Years, Benjaporn Hirunyaphinun Jan 2019

Factors Of Age, Anthropometric Characteristics And Lower Extremity Strength On Multi-Directional Reach Test In Typical Children Aged 7 - 12 Years, Benjaporn Hirunyaphinun

Chulalongkorn University Theses and Dissertations (Chula ETD)

The purpose of this study was to investigate the associations of age, anthropometric characteristics and lower extremity strength with the Multi-Directional React Test (MDRT). Sixty children with typical development, aged 7 to 12 years old, were categorized into each age group. Pearson correlation coefficient and Spearman rank correlation coefficient were conducted to examine the relationship between interesting variables (age, anthropometric characteristics and lower extremity strength) and the reach distances in forward, backward, leftward and rightward directions. The results of this study showed that multi-directional reach distances increased with age for all directions. Fair to moderate relationship (r = 0.28 – …

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Responsiveness Of The Thai Version Of The Patient Reported Outcomes Measurement Information System-29 (Promis-29) In Patients With Chronic Low Back Pain, Kornkanok Khutok Jan 2019

Responsiveness Of The Thai Version Of The Patient Reported Outcomes Measurement Information System-29 (Promis-29) In Patients With Chronic Low Back Pain, Kornkanok Khutok

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: The Patient-Reported Outcomes Measurement Information System-29 (PROMIS-29) questionnaire assesses 7 health related quality of life domains. However, research to evaluate the responsiveness and minimal clinically important differences (MCIDs) of the PROMIS-29 scores in patients with chronic low back pain (cLBP) is limited. Purpose: To evaluate responsiveness and estimate the MCIDs for PROMIS-29 scales in patients with cLBP. Method: One hundred and eighty-three participants with cLBP took part in the study. They completed the PROMIS-29 scales at baseline, 4 weeks, and 8 weeks of the study. Responsiveness of the PROMIS-29 scale scores was evaluated by examining the mean change scores, …

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Effects Of Achilles Tendon Stretching In Individuals With Plantar Fasciitis, Phoomchai Engkananuwat Jan 2019

Effects Of Achilles Tendon Stretching In Individuals With Plantar Fasciitis, Phoomchai Engkananuwat

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background and rationale: Since the plantar fascia and the Achilles tendon are anatomically connected, it is therefore plausible that stretching of both structures simultaneously will result in a better outcome. Methods: Fifty participants aged 40-60 years with a history of plantar heel pain greater than one month were recruited. They were randomly assigned into two groups. Group 1 was instructed to stretch the Achilles tendon while Group 2 simultaneous stretched the Achilles tendon and plantar fascia. The stretching interventions were performed for four weeks and the outcome measures were recorded at baseline, at the end of the 4th week, and …

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Cross-Cultural Adaptation And Psychometric Properties Of The Thai Version Of The University Of Washington - Concerns About Pain Scale 6 (Uw-Cap6), Sukhonwaroch Youprasart Jan 2019

Cross-Cultural Adaptation And Psychometric Properties Of The Thai Version Of The University Of Washington - Concerns About Pain Scale 6 (Uw-Cap6), Sukhonwaroch Youprasart

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Pain catastrophizing has been shown to be an important psychosocial factor that predicts disability and other important pain-related outcomes in individuals with chronic pain. The University of Washington - Concerns about Pain scale (UW-CAP6) is the brief version of a new item bank that assesses pain-related catastrophizing. Objective: To cross-culturally adapt the UW-CAP6 items into Thai and to evaluate its psychometric properties. Methods: The original UW-CAP6 instructions and items were cross-culturally adapted into Thai using the Functional Assessment of Chronic Illness Therapy translation methodology. Chronic low back pain individuals completed the Thai version of UW-CAP6 (T-UW-CAP6), Thai Fear Avoidance …

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Effects Of Non-Albicans Candida Species On Biofilm Formation And Acidogenicity Of Dual-Species Biofilms And On Cariogenic Virulence Gene Expression Of Streptococcus Mutans, Wirunphat Sansanoa Jan 2019

Effects Of Non-Albicans Candida Species On Biofilm Formation And Acidogenicity Of Dual-Species Biofilms And On Cariogenic Virulence Gene Expression Of Streptococcus Mutans, Wirunphat Sansanoa

Chulalongkorn University Theses and Dissertations (Chula ETD)

Early childhood caries is a common oral disease found in children which could affect their general health. Streptococcus mutans is an important cariogenic pathogen since it possesses cariogenic properties, which are acid production, acid tolerance and biofilm formation. Recent studies showed that Candida albicans, which is frequently found together with S. mutans in plaques of children with dental caries, enhances cariogenicity. At the same time, increasing prevalence of non-albicans Candida species (NACs) in children and immune-compromised patients has been reported. Therefore, this study aims to investigate the effects of NACs when co-cultured with S. mutans on cariogenic properties and virulence …

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