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Cytotoxic Constituents Of Cymbidium Finlaysonianum And Paphiopedilum Dianthum, Nonthalert Lertnitikul
Cytotoxic Constituents Of Cymbidium Finlaysonianum And Paphiopedilum Dianthum, Nonthalert Lertnitikul
Chulalongkorn University Theses and Dissertations (Chula ETD)
Chemical investigation of two orchids native to Thailand led to the isolation of eighteen compounds. From the whole plants of Cymbidium finlaysonianum Wall. ex Lindl, a new dihydrophenanthrene, 1-(4-hydroxybenzyl)-2,7-dihydroxy-4,6-dimethoxy-9,10-dihydrophenan-threne, and nine known stilbenoids, including a phenanthrenequinone, cymbinodin-A, a dihydrophenanthrenequinone, ephemeranthoquinone B, a bibenzyl, batatasin III, two phenanthrenes, 2,4-dimethoxy-3,7-dihydroxyphenanthrene and 3,7-dihydroxy-2,4,6-trimethoxyphenanthrene, and four dihydrophenanthrenes i.e. coelonin, 6-methoxycoelonin, flavanthridin and lusianthridin, were obtained. From the roots and leaves of Paphiopedilum dianthum Tang & Wang, two new stilbene dimers, paphiodianthins A and B, were isolated along with three known stilbenes i.e. pinosylvin monomethyl ether, 2,3'-dihydroxy-5'-methoxystilbene and (E)-2,5'-dihydroxy-2'-(4-hydroxybenzyl)-3'-methoxystilbene, and three known flavonoids i.e. isalpinin, …
Protective Mechanisms Of Polyphenols Against Nsaids-Induced Intestinal Cell Death In Caco-2 Cells, Cherdsak Boonyong
Protective Mechanisms Of Polyphenols Against Nsaids-Induced Intestinal Cell Death In Caco-2 Cells, Cherdsak Boonyong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Indomethacin (INDO) and diclofenac (DIC) cause intestinal cell death through reactive oxygen species (ROS), endoplasmic reticulum stress (ER stress) and mitochondrial dysfunction. This study investigated the cytoprotective effects of certain natural polyphenolic antioxidants against INDO- and DIC-mediated Caco-2 cell death as well as underlying mechanisms. In this study, caffeic acid (CAF), curcumin (CUR), epigallocatechin gallate (EGCG), gallic acid (GAL), hypophyllanthin (HYPO), naringenin (NAR), phyllanthin (PHY), piperine (PIP), quercetin (QUE), rutin (RUT) and silymarin (SLY) were able to decrease ROS production in Caco-2 cells treated with INDO and DIC. However, only EGCG, QUE and RUT (100 µM) could prevent INDO- and …
Effects Of Rhinacanthin-C In Multidrug-Resistance Breast Cancer Cells, Suwichak Chaisit
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 …
Study Of Pharmacist Workforce In Public Sector, Of Republic Of The Union Of Myanmar, Lwin Nyein Aye
Study Of Pharmacist Workforce In Public Sector, Of Republic Of The Union Of Myanmar, Lwin Nyein Aye
Chulalongkorn University Theses and Dissertations (Chula ETD)
Health workforce shortage was common across the world including Myanmar. However, there was not previous study about the pharmacist workforce to ascertain the shortage problem in Myanmar. This study was aimed to analyze the current situation of pharmacist workforce in Myanmar especially in public sector and to construct a simulation model to suggest the appropriate policy options to the policymakers in improving the pharmacist workforce situations in the public hospitals.For the first objective, the study design was a cross-sectional survey using a mixed method which consisted of the secondary data analysis and semi-structured face-to-face interviews. The government registry data related …
ผลลัพธ์ของการให้บริบาลทางเภสัชกรรมโดยเภสัชกรในผู้ป่วยสูงอายุที่เข้ารับการรักษาตัวในโรงพยาบาล, กันยาพร ชาติวิวัฒน์พรชัย
ผลลัพธ์ของการให้บริบาลทางเภสัชกรรมโดยเภสัชกรในผู้ป่วยสูงอายุที่เข้ารับการรักษาตัวในโรงพยาบาล, กันยาพร ชาติวิวัฒน์พรชัย
Chulalongkorn University Theses and Dissertations (Chula ETD)
วัตถุประสงค์: เพื่อเปรียบเทียบผลของการให้บริบาลทางเภสัชกรรมโดยเภสัชกรในผู้ป่วยสูงอายุที่เข้ารับการรักษาตัวในโรงพยาบาลในด้านค่าเฉลี่ยจำนวนปัญหาจากการใช้ยา คะแนนคุณภาพชีวิตด้านการใช้ยา และจำนวนผู้ป่วยที่กลับเข้ารับการรักษาตัวซ้ำในโรงพยาบาลด้วยสาเหตุที่สัมพันธ์กับการใช้ยาภายในระยะเวลา 30 วันหลังจำหน่าย วิธีการวิจัย: การวิจัยเชิงทดลองแบบสุ่มชนิดที่มีกลุ่มควบคุมแบบปกปิดทางเดียว ศึกษาในผู้ป่วยสูงอายุที่เข้ารับการรักษาตัวในหอผู้ป่วยอายุรกรรม จำนวนทั้งสิ้น 192 คน แบ่งผู้ป่วยออกเป็น 2 กลุ่ม คือ กลุ่มศึกษาและกลุ่มควบคุม ผู้ป่วยถูกติดตามตั้งแต่เข้ารับการรักษา ณ หอผู้ป่วยอายุรกรรมจนถึงระยะเวลา 30 วันหลังจำหน่ายออกจากโรงพยาบาล ผลการวิจัย: กลุ่มศึกษาพบค่าเฉลี่ยของปัญหาจากการใช้ยาต่ำกว่ากลุ่มควบคุม (p<0.001) สำหรับคะแนนคุณภาพชีวิตด้านการใช้ยาโดยรวมดีขึ้นกว่ากลุ่มควบคุมอย่างมีนัยสำคัญทางสถิติ (p<0.05) และอัตราการกลับเข้ารับการรักษาตัวซ้ำในโรงพยาบาลด้วยสาเหตุที่สัมพันธ์กับการใช้ยาภายในระยะเวลา 30 วันหลังจำหน่ายในกลุ่มศึกษาต่ำกว่ากลุ่มควบคุมอย่างมีนัยสำคัญทางสถิติ (p=0.003) สรุปผลการวิจัย: การให้บริบาลทางเภสัชกรรมโดยเภสัชกรในกลุ่มผู้สูงอายุที่เข้ารับการรักษาในโรงพยาบาลสามารถลดปัญหาจากการใช้ยา เพิ่มคุณภาพชีวิตด้านการใช้ยา รวมถึงลดการกลับเข้ารับการรักษาตัวซ้ำในโรงพยาบาลเนื่องจากสาเหตุที่สัมพันธ์กับการใช้ยาภายในระยะเวลา 30 วันหลังจำหน่ายได้
ผลกระทบของภาวะพหุสัณฐานของยีน Casr ต่อการตอบสนองของผู้ป่วยชาวไทยต่อยาซินาแคลเซท, จารุวรรณ งามขำ
ผลกระทบของภาวะพหุสัณฐานของยีน Casr ต่อการตอบสนองของผู้ป่วยชาวไทยต่อยาซินาแคลเซท, จารุวรรณ งามขำ
Chulalongkorn University Theses and Dissertations (Chula ETD)
วัตถุประสงค์: เพื่อศึกษาความสัมพันธ์ระหว่างการแสดงออกของยีน CASR rs1042636 กับการตอบสนองต่อยาซินาแคลเซทหลังจากได้รับยาซินาแคลเซทเป็นเวลา 12 สัปดาห์ ในผู้ป่วยโรคไตเรื้อรังชาวไทย วิธีการศึกษา: การศึกษาเชิงวิเคราะห์แบบย้อนหลัง ในผู้ป่วยโรคไตเรื้อรังที่เกิดภาวะฮอร์โมนพาราไทรอยด์สูงชนิดทุติยภูมิ และเริ่มได้รับยาซินาแคลเซทเป็นเวลา 12 สัปดาห์ วิเคราะห์ความแตกต่างของสัดส่วนผู้ป่วยที่มีระดับฮอร์โมนพาราไทรอยด์ลดลงมากกว่าร้อยละ 30 ระหว่างกลุ่ม AA genotype และ G carrier ด้วยสถิติไคว์สแควร์ และนำปัจจัยอื่น ๆ ที่อาจมีผลต่อการลดลงของระดับพาราไทรอยด์มาร่วมพิจารณาด้วยโดยใช้สถิติถดถอยโลจิสติกส์ รวมถึงวิเคราะห์หาความสัมพันธ์ระหว่างการแสดงออกของยีน CASR rs1042636 กับระดับฮอร์โมนพาราไทรอยด์ที่สัปดาห์ที่ 12 หลังได้รับยาซินาแคลเซทโดยสถิติการวิเคราะห์ถดถอยเชิงพหุด้วยวิธี สเต็บไวส์ ผลการศึกษา: ผู้ป่วย 138 คน พบความแตกต่างกันของสัดส่วนผู้ป่วยที่มีระดับฮอร์โมนพาราไทรอยด์ลดลงมากกว่าร้อยละ 30 ระหว่างกลุ่ม AA genotype และ G carrier อย่างมีนัยสำคัญ (Chi-square test; p=0.023) เมื่อนำปัจจัยอื่นมาร่วมพิจารณาพบว่า ผู้ป่วยในกลุ่มจีโนไทป์ AA มีโอกาสที่จะมีร้อยละการลดลงของระดับฮอร์โมนพาราไทรอยด์มากกว่าร้อยละ 30 หลังได้รับยาซินาแคลเซท 12 สัปดาห์น้อยกว่ากลุ่มจีโนไทป์อื่น ๆ ร้อยละ 62.2 (OR=0.378; p=0.047) และพบความสัมพันธ์ระหว่างการแสดงออกของยีน CASR rs1042636 กับระดับฮอร์โมนพาราไทรอยด์ที่สัปดาห์ที่ 12 (β=0.253, p<0.001; R2=0.331) สรุป: พบความสัมพันธ์ระหว่างการแสดงออกของยีน CASR rs1042636 กับการตอบสนองต่อยาซินาแคลเซท โดยกลุ่มจีโนไทป์ AA พบการตอบสนองต่อยาซินาแคลเซทที่น้อยกว่ากลุ่มจีโนไทป์อื่น ๆ อย่างมีนัยสำคัญ
Production Optimization Of Recombinant Human Vascular Endothelial Growth Factor In Tobacco (Nicotiana Benthamiana), Christine Joy I. Bulaon
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 …
Effect Of Extraction Solvents On Biological Activities Of Murraya Paniculata Leaves In Cosmetic Application, Siriruethai Ruanmai
Effect Of Extraction Solvents On Biological Activities Of Murraya Paniculata Leaves In Cosmetic Application, Siriruethai Ruanmai
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objective of this study was to evaluate and compare the antioxidant activity and tyrosinase inhibition activity of Murraya paniculata (Linn.) Jack leaves extract (MPE) obtained from different extraction solvents for the use of cosmetic purposes. The result showed that 75 % ethanolic extract presented the highest antioxidant activity (IC50 = 1.43 mg/mL), the total phenolic content of 66.12 mg GAE/g and the total flavonoids content of 7.83 mg QE/g. All of the obtained extracts had low tyrosinase inhibitory activity. The final MPE lotion contained 1 %w/w of 75 % ethanolic extract dissolved in 50 %w/w of propylene glycol, 20 …
In Vitro Safety And Permeation Assessments Of Lidocaine Loaded In Dissolving Microneedle Patch For Ocular Administration, Sirikool Thamnium
In Vitro Safety And Permeation Assessments Of Lidocaine Loaded In Dissolving Microneedle Patch For Ocular Administration, Sirikool Thamnium
Chulalongkorn University Theses and Dissertations (Chula ETD)
The challenge in ocular drug delivery have brought much attention in pharmaceutical research. Efforts have been made to improve the low bioavailability causing by physiological limitations of ophthalmic drug administration. Topical lidocaine solution is a popular choice for ocular treatment, but less than 5% of topically applied dose reached to the target site. Lidocaine loaded in dissolving microneedle patch was considered a good alternative approach to treating eyes. The study aimed to investigate the cytotoxicity of the lidocaine loaded in dissolving microneedle administration against human corneal epithelial cells (HCECs) as well as ex vivo drug target localization with tissue penetration. …
Effects Of Astaxanthin Supplementation On Biological Parameters In Thai Healthy Volunteers, Chuenjai Sratongfaeng
Effects Of Astaxanthin Supplementation On Biological Parameters In Thai Healthy Volunteers, Chuenjai Sratongfaeng
Chulalongkorn University Theses and Dissertations (Chula ETD)
Astaxanthin, a powerful antioxidant, is widely used as a dietary supplement to promote several health benefits. However, the effects of long-term supplementation on general biological parameters in healthy adults is still insufficient. The objective of this study was to investigate the effects of 12-week astaxanthin supplementation on blood glucose, lipid profile and hematological parameters in healthy volunteers. Thirty-three healthy participants (16 in the experimental group and 17 in the placebo group) were enrolled in the study. The participants in the experimental group were supplemented with 4 mg/day of astaxanthin while those in the placebo group were supplemented with soybean oil …
Nutritional Status And Dietary Perceptions In Colorectal Cancer Patients Undergoing Adjuvant Chemotherapy, Wipapak Raksawongsa
Nutritional Status And Dietary Perceptions In Colorectal Cancer Patients Undergoing Adjuvant Chemotherapy, Wipapak Raksawongsa
Chulalongkorn University Theses and Dissertations (Chula ETD)
Colorectal cancer treatment usually involves surgical resection following by adjuvant chemotherapy. Pathology and treatment are major causes of malnutrition. Therefore, this group of patients should receive specific nutritional counseling. Changes in eating behavior occur when the patients perceive the benefits of changes. Dietary perceptions information is useful in nutrition care. The aim of this prospective study was to examine the effect of individualized nutritional counseling on the nutritional status and dietary perceptions of 35 colorectal cancer patients receiving adjuvant chemotherapy at King Chulalongkorn Memorial Hospital from March to November 2019. The data were collected during the first to the third …
Increasing Levodopa And Carbidopa Loading Quantity In Oral Pullulan Thin Film, Kitisak Krisai
Increasing Levodopa And Carbidopa Loading Quantity In Oral Pullulan Thin Film, Kitisak Krisai
Chulalongkorn University Theses and Dissertations (Chula ETD)
Due to the non-compliance of Parkinson’s patient, both youth and elderly patients commonly suffer from the consequent of tablet administration. Therefore, the way to solve this patient’s non-compliance is the development of levodopa (LD) and carbidopa (CD) as an oral thin film (OTF) formulation. The current study focuses on the increasing solubility of LD and CD in order to improve the loading quantity for OTF preparation including formulation development and short-term stability investigation. The technique of solubilization by ionization approach was selected. Quantitative determination of solubilized LD and CD in various acid solvents showed the highest solubility of both drugs …
Risk Assessment Of Gmp Inspection Of Overseas Pharmaceutical Manufacturers Based On Pic/S Desktop Inspection, Waranon Cheewajorn
Risk Assessment Of Gmp Inspection Of Overseas Pharmaceutical Manufacturers Based On Pic/S Desktop Inspection, Waranon Cheewajorn
Chulalongkorn University Theses and Dissertations (Chula ETD)
Good manufacturing practice (GMP) inspection of overseas manufacturers is regulated under desktop inspection by Thailand Food and Drug Administration (Thai FDA). The desktop inspection system is verified mainly by document without on-site inspection like for local manufacturers. The inspection results may thus cause certain gaps in terms of quality and reliability. In addition, none has reported the risk assessment of desktop inspection system in Thailand and the limited research articles investigated these gaps. This work utilized the quality risk management (QRM) of International Council for Harmonization Q9 (ICH Q9) guideline with Failure Mode and Effects Analysis (FMEA) tool to study …
Effects Of Sulodexide In The Prevention Of Peritoneal Membrane Changes In Continuous Ambulatory Peritoneal Dialysis Patients, Panida Ditsawanon
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 …
Taxonomy, Bioactivities, And Secondary Metabolites Of Endophytic Actinomycetes Isolated From Medicinal Plants, Nattaporn Klykleung
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 …
Physicochemical, Permeability, Antioxidant And Anti-Inflammatory Properties Of Oxyresveratrol Ester Prodrugs, Wuttinont Thaweesest
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 …
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 …
Free Radical Scavenging Compounds From Dendrobium Lindleyi, Pichayatri Khoonrit
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, …
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 …
Development Of Cyclodextrin-Based Pickering Nanoemulsion Containing Amphotericin B For Treatment Of Fungal Keratitis, Phyo Darli Maw
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 …
Cytotoxic Effects Of Mansonone G And Ethoxy Mansonone G From Mansonia Gagei Drumm In Non-Small Cell Lung Cancer, Arachawipa Wannachote
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, …
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 …
Effects Of Rhinacanthin-C In Multidrug-Resistance Breast Cancer Cells, Suwichak Chaisit
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 …
Bioengineered Regenerative Therapy For Diabetes Mellitus: Establishment Of Canine Mesenchymal Stem Cell-Derived Insulin Producing Cells, Watchareewan Rodprasert
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 …
Association Between Nat2 Polymorphisms And Anti-Tuberculosis Drug-Induced Liver Injury In Myanmar Patients In Thailand, Khin Sandi Thaw
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, …
Effect Of Gigantol On Tumorigenicity Of Non-Small Cell Lung Cancer Cells Via Cancer Stem Cell Signal Suppression, Nattanan Losuwannarak
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 …
N, N-Bis (5-Ethyl-2-Hydroxybenzyl) Methylamine Induces Apoptosis Of Non-Small Cell Lung Cancer Cells Via C-Myc Protein Degradation, Nicharat Sriratanasak
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 …
Prostate Cancer Screening In Thailand: Cost-Effectiveness Analysis And Budget Impact Evaluation, Chavalit Romyen
Prostate Cancer Screening In Thailand: Cost-Effectiveness Analysis And Budget Impact Evaluation, Chavalit Romyen
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objectives: As public health insurance schemes in Thailand did not included prostate cancer screening in their benefits package, this study aimed to systematically gather the effectiveness and explore the cost effectiveness of difference prostate cancer screening programs for the Thai population and find the financial impact for adapting prostate cancer strategy. Method: We perform systematic and network meta-analysis, health economic evaluation using Markov’s model to compare four prostate cancer screening strategies with no screening options. And we perform budget impact analysis to assess the potential burden for adopting selected strategy. Result: The result from systematic review and network meta-analysis suggest …
Drug Classification Scheme Review And The Economic Impact Analysis Of Abandoning Non-Prescription Drug Reimbursement In Thailand, Doungporn Leelavanich
Drug Classification Scheme Review And The Economic Impact Analysis Of Abandoning Non-Prescription Drug Reimbursement In Thailand, Doungporn Leelavanich
Chulalongkorn University Theses and Dissertations (Chula ETD)
In Thailand, controversies regarding the drug classification system persist; it was believed that the number of schemes should be changed, and most drugs classified into improper schemes. The system is not also fully used to allocate healthcare budgets, while several other countries cease non-prescription (OTC) drugs reimbursement to allocate this expenditure to catastrophic diseases instead. This study thus aims to (i) review drug classification system in Thailand by comparing to other countries, (ii) evaluate the economic impact of delisting OTC drugs from drug reimbursement list using non-sedating antihistamines (AH) in patients suffering from intermittent allergic rhinitis as a case study, …
Exploring Alcohol Withdrawal Syndrome And Predicting Alcohol Consumption Change In Patients Admitted To A Genenral Hospitals In Vietnam, Loan Thi Mai Nguyen
Exploring Alcohol Withdrawal Syndrome And Predicting Alcohol Consumption Change In Patients Admitted To A Genenral Hospitals In Vietnam, Loan Thi Mai Nguyen
Chulalongkorn University Theses and Dissertations (Chula ETD)
Risky alcohol drinking is common in hospitalized patients. Early detecting risky alcohol drinkers in hospital is important to provide appropriate management of Alcohol withdrawal syndrome (AWS). This first aim of this study was to identify the extent to which patients admitted to a general hospital in Vietnam meet the criteria for risky alcohol drinker (RAD), alcohol use disorder (AUD), and alcohol withdrawal syndrome (AWS). The second aim was to identify predictors of intension to change and changing alcohol consumption using the Integrated Behavior Model as a conceptual framework. Design: A prospective survey was conducted in Kien An - a general …