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2018

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Predicting Factors Of Preschooler's Parental Feeding Behaviors, Urban Thailand, Chollada Jongsomjitt Jan 2018

Predicting Factors Of Preschooler's Parental Feeding Behaviors, Urban Thailand, Chollada Jongsomjitt

Chulalongkorn University Theses and Dissertations (Chula ETD)

This descriptive correlational study aimed to identify the predicting factors and to examine direct and indirect relationships of preschoolers' parental feeding behaviors (PFB), urban Thailand. The conceptual framework was developed guided by Orem's self-care theory. A Multi-stage sampling was used to recruit 443 parents of preschoolers from 11 schools in Bangkok and city municipalities in all regions of Thailand. Six questionnaires demonstrated acceptable content and construct validity, and reliability were used to ask all participants to complete all questionnaires. Data were collected from November 2018 to May 2019. Most of the participants were mothers (71%). Half of them were aged …

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Pd-1 Expression On Immune Cells In Sepsis Mouse Model And The Susceptibility To Secondary Fungal Infection, Chau Tran Bao Vu Jan 2018

Pd-1 Expression On Immune Cells In Sepsis Mouse Model And The Susceptibility To Secondary Fungal Infection, Chau Tran Bao Vu

Chulalongkorn University Theses and Dissertations (Chula ETD)

Objectives: This study aimed to i) determine the kinetic changes of immune cell phenotypes, including an exhaustion marker PD-1, in spleens of murine sepsis ii) investigate the susceptibility against secondary fungal infection after sepsis, and iii) investigate the efficacy of an anti-PD-1 treatment in post-sepsis fungal infection. Methods: Cecal ligation and puncture (CLP) was used as a sepsis model and splenocytes post-CLP were assessed by flow cytometry. In addition, secondary post sepsis systemic fungal infections by Candida albicans or Aspergillus fumigatus administration at 5-day post-CLP were performed. Moreover, secondary aspergillosis was treated with Amphotericin B with or without anti-PD-1 to …

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Tlr3 Signaling Modulates Immunomodulatory Property Of Human Periodontal Ligament Stem Cells., Daneeya Chaikiawkeaw Jan 2018

Tlr3 Signaling Modulates Immunomodulatory Property Of Human Periodontal Ligament Stem Cells., Daneeya Chaikiawkeaw

Chulalongkorn University Theses and Dissertations (Chula ETD)

Toll like receptor 3 (TLR3) is a member of TLR family functions to recognizes double-stranded RNA (dsRNA) produced by positive-strand RNA viruses and DNA virusesand generate signaling that stimulate body immune system against virus infection. However, recent evidence suggests that TLR3 signaling may also play a role in initiating the immunosuppressive property of the cells. Study on skin regeneration has shown the anti-inflammatory responses of keratinocytes required for wound healing andthe increasing number of hair follicle formation after TLR3 signaling was activated by fragment of RNA released from damaged cells. Moreover, activation of TLR3 signaling have shown to elicit a …

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Association Between Chronic Periodontitis And Hypertension Among Thai Adults, Ploysiri Rassamee Jan 2018

Association Between Chronic Periodontitis And Hypertension Among Thai Adults, Ploysiri Rassamee

Chulalongkorn University Theses and Dissertations (Chula ETD)

Previous studies suggest that periodontitis may be associated with an increasing risk of hypertension. However, data from large epidemiological studies are limited. The aim of this cross-sectional study was to examine the association between periodontitis and hypertension using data from a cohort study in a Thai population. The study population comprised of 1,378 employees of the Electricity Generating Authority of Thailand (EGAT), aged 53 to 73 years old, were categorized into no/mild, moderate, or severe periodontitis groups. Hypertension was determined as having systolic blood pressure 140 mmHg or more or diastolic blood pressure 90 mmHg or more, or taking antihypertensive …

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Green Composites Of Polylactic Acid Filled With Natural Fiber For Biodegradation Application, Chamaiporn Yamoum Jan 2018

Green Composites Of Polylactic Acid Filled With Natural Fiber For Biodegradation Application, Chamaiporn Yamoum

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research focuses on how to use natural fibers available from agricultural residues to produce biodegradable materials such as mulch films. Green composites were prepared from natural fibers (peanut shell and bagasse fiber) and polylactic acid (PLA) together with plasticizers. The presence of plasticizers improved PLA molecular mobility as seen by the reduction of glass transition, cold crystallization, and melting temperatures. The addition of natural fibers into PLA brought down decomposition temperature when compared to PLA. The morphological study of the composites showed poor interfacial adhesion between natural fibers and PLA matrix. Moreover, the loading of plasticizers improved distribution of …

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Surface-Enhanced Raman Scattering Technique For Polycyclic Aromatic Hydrocarbons Detection Using Thiol-Functionalized Silver Nanoparticle Films, Sathita Taksadej Jan 2018

Surface-Enhanced Raman Scattering Technique For Polycyclic Aromatic Hydrocarbons Detection Using Thiol-Functionalized Silver Nanoparticle Films, Sathita Taksadej

Chulalongkorn University Theses and Dissertations (Chula ETD)

The detection of polycyclic aromatic hydrocarbons (PAHs) is developed based on surface-enhanced Raman scattering (SERS) using silver nanoparticle films as SERS substrates. The films are fabricated by a Langmuir Blodgett (LB) method and the surface of AgNP films are functionalized with various types of aromatic and aliphatic thiols, i.e., naphthalenethiol, phenylethanethiol, pentanethiol, octanethiol, and dodecanethiol, to create a hydrophobic layer for PAHs to attach on and stay in hot spot. The results indicate that nine kinds of PAHs with different structures, i.e., anthracene, chrysene, naphthacene, naphthalene, phenanthrene, pentacene, perylene, pyrene, and triphenylene, can attach on the surfaces of thiol-modified AgNP …

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Preparation Of Alginate Capsule Using Two Coaxial Glass-Tube, Panida Watchanung Jan 2018

Preparation Of Alginate Capsule Using Two Coaxial Glass-Tube, Panida Watchanung

Chulalongkorn University Theses and Dissertations (Chula ETD)

TEMPO-Oxidized bacterial cellulose (TOBC) were obtained using TEMPO-mediated oxidation (TOBC) to produce carboxylate groups on bacterial cellulose surfaces. TOBC had lower crystallinity but better aqueous dispersion than bacterial cellulose. TOBC was used as a reinforcement agent for production alginate capsules. The alginate capsules for entrapping rice bran oil were made via a coaxial-glass tube. The factors that influenced on the shape and production efficiency of capsules were the gap between tube tip and the Ca2+ ions bath and the viscosity of shell solution. However, these factors had no effect on the size and shell thickness of capsules. Increasing of TOBC …

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Taxonomy And Secondary Metabolites Of Selected Endophytic Actinomycete Strains, Nattakorn Kuncharoen Jan 2018

Taxonomy And Secondary Metabolites Of Selected Endophytic Actinomycete Strains, Nattakorn Kuncharoen

Chulalongkorn University Theses and Dissertations (Chula ETD)

A total of 50 endophytic actinomycetes isolated from fourteen plant species collected from six provinces of Thailand including Bangkok, Chachoengsao, Chiang Mai, Nakhon Pathom, Prachinburi and Suphan Buri were taxonomically studied relied on their phenotypic and chemotaxonomic characteristics, and the 16S rRNA gene sequence analysis. The isolates were identified as members of the family Streptomycetaceae involving Streptomyces (22 isolates), and the family Micromonosporaceae including Micromonospora (25 isolates), Plantactinospora (1 isolate) and Polymorphospora (1 isolate). Based on phenotypic characteristics, whole genome sequence analysis and DNA-DNA hybridization, 5 novel actinomycete species were proposed consisting of Micromonospora globbae (strain WPS1-2T), Micromonospora azadirachtae (strain …

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Chemical Composition And In Vitro Anticancer Activity Of Okra (Albelmoschus Esculentus) Seed Extract To Develop Into Polymeric Micelles, Watcharaphong Chaemsawang Jan 2018

Chemical Composition And In Vitro Anticancer Activity Of Okra (Albelmoschus Esculentus) Seed Extract To Develop Into Polymeric Micelles, Watcharaphong Chaemsawang

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objective of this research was to study the phytochemical composition of the Okra seed extract and its in vitro anticancer activity for future pharmaceutical use. We detected active flavonoids compounds such as isoquercitrin, at an amount of 2.89 ± 1.64 % w/w. Furthermore, antioxidation testing by DPPH assay and ABTS assay, showed values of IC50 = 55.80 ug/ml and 49.04 ug/ml, respectively. The Okra seed extract’s anti-cancer activity was evaluated on cancer cell lines, indicating anticancer properties for certain forms of cancer such as cervical cancer (HeLa), liver cancer (HepG2), and most significantly for breast cancer (MCF-7). The mechanisms …

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Neuroprotective Effects Of The Standardized Extract Of Centella Asiatica Eca233 In Rotenone-Induced Parkinson’S Disease Model, Narudol Teerapattarakan Jan 2018

Neuroprotective Effects Of The Standardized Extract Of Centella Asiatica Eca233 In Rotenone-Induced Parkinson’S Disease Model, Narudol Teerapattarakan

Chulalongkorn University Theses and Dissertations (Chula ETD)

The standardized extract of Centella asiatica ECa233 consists of asiaticoside and madecassoside. Previous studies reported various pharmacological effects of, ECa233, especially in the central nervous system disorders. The present study aimed to investigate the neuroprotective effects and protective mechanisms of ECa233 against rotenone-induced neurotoxicity in rats and in neuroblastoma SH-SY5Y cells. In animal study, male Wistar rats were divided into five experimental groups (n=10); control, PD, PD-ECa10, PD-ECa30, and PD-EC100. On days 1-20, control and PD rats received 0.5% carboxymethylcellulose (CMC) (1 mL/kg, p.o.) while ECa233 10, 30 and 100 mg/kg (p.o.) were given to PD-ECa10, PD-ECa30, and PD-EC100, respectively. …

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Protective Effects Of Eriodictyol On Hydrogen Peroxide-Induced Cell Death In Sh-Sy5y Cells, Saowarose Thongin Jan 2018

Protective Effects Of Eriodictyol On Hydrogen Peroxide-Induced Cell Death In Sh-Sy5y Cells, Saowarose Thongin

Chulalongkorn University Theses and Dissertations (Chula ETD)

Oxidative stress and mitochondrial dysfunction are the major causes of neuronal death in neurodegenerative disorders. Eriodictyol is a flavonoid extracted from the whole plant of Dendrobium ellipsophyllum (thai name: Ueang Thong). The antioxidant and anti-inflammatory effects of eriodictyol have been widely reported. The present study aimed to investigate the protective effect and mechanisms of eriodictyol on hydrogen peroxide (H2O2)-induced cell death in human neuroblastoma SH-SY5Y cells. The protective effect of eriodictyol on cytotoxicity induced by H2O2 was evaluated using resazurin assay. The effects on intracellular reactive oxygen species (ROS) and mitochondria membrane potential were evaluated by 2´-7’ dichlorodihydrofluorescein diacetate (DCFH-DA) …

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Pharmacokinetic Study Of Cucurbitacin B From Trichosanthes Cucumerina L. In Rats, Natthaphon Hunsakunachai Jan 2018

Pharmacokinetic Study Of Cucurbitacin B From Trichosanthes Cucumerina L. In Rats, Natthaphon Hunsakunachai

Chulalongkorn University Theses and Dissertations (Chula ETD)

Cucurbitacin B is a triterpenoid, majorly found in Cucurbitaceae family, particularly in the Trichosanthes cucumerina L. fruits. The pharmacological properties of cucurbitacin B have been studied for decades, particularly an anti-tumor and anti-inflammatory activity. However, the pharmacokinetic profile of this compound is still limited and the investigation is needed for further pharmaceutical product development. This study aimed to investigate the pharmacokinetic profile of cucurbitacin B after administering the compound at different doses and routes to the rats. Male Wistar rats, weighed approximately 400-500 g, were treated with cucurbitacin B extracted from Trichosanthes cucumerina L. The cucurbitacin B was administered at …

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Effects Of Aldosterone On Striatin And Caveolin-1 Protein Levels In Rat Kidney: Role Of Mineralocorticoid Receptor, Kevalin Inthachart Jan 2018

Effects Of Aldosterone On Striatin And Caveolin-1 Protein Levels In Rat Kidney: Role Of Mineralocorticoid Receptor, Kevalin Inthachart

Chulalongkorn University Theses and Dissertations (Chula ETD)

The mineralocorticoid hormone aldosterone is a steroid hormone which plays an important role in maintenance of sodium, potassium, and acid-base balance. Aldosterone actions are mediated by mineralocorticoid receptor (MR) that could operate via genomic or nongenomic pathways. It has been shown that MR forms a complex with several molecules including scaffolding proteins, such as striatin and caveolin-1 (cav-1). Previous in vitro studies demonstrated that aldosterone increased striatin and cav-1 protein abundance. In addition, both striatin and cav-1 could interact with MR. However, there is no in vivo study of aldosterone effects on striatin and cav-1 protein levels in rat kidney. …

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Involvement Of Nucleus Raphe Magnus In Neuronal Excitability Of Long Term Paracetamol-Treated Rats, Prangtip Potewiratnanond Jan 2018

Involvement Of Nucleus Raphe Magnus In Neuronal Excitability Of Long Term Paracetamol-Treated Rats, Prangtip Potewiratnanond

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study examined an involvement of nucleus raphe magnus (NRM) on neuronal excitability at cortex and trigeminal nucleus caudalis (TNC) of chronic paracetamol-treated rats. Male Wistar rats were separated into two main groups. The rats in paracetamol-treated group were intraperitoneally injected with 200 mg/kg paracetamol while 0.9% NaCl was injected in control rats for 30 days. In the first experiment, cortical spreading depression (CSD) event was initiated and direct current (DC) shift was recorded for 2 hours. Thirty minutes after CSD induction, the rats were injected with glutamate, muscimol or saline at NRM and continued signal recording. In the second …

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Prevalence And Factors Associated With Anemia Among Pregnant Women Attending Amda Hospital Of Eastern Nepal, Gaurab Acharya Jan 2018

Prevalence And Factors Associated With Anemia Among Pregnant Women Attending Amda Hospital Of Eastern Nepal, Gaurab Acharya

Chulalongkorn University Theses and Dissertations (Chula ETD)

Anemia in pregnancy is a global public health problem, affecting nearly 40% of the pregnant women worldwide. The higher burden of anemia was found in Nepal with 46% prevalence among pregnant women. This study is a health facility-based cross-sectional study carried out from September to October 2018. A total of 420 pregnant women of reproductive age group (18-49 years) attending the antenatal check-up in AMDA Hospital of Damak, Jhapa were recruited in this study. Data was collected through a validated semi-structured questionnaire. Collected data was analyzed in SPSS 22. Both descriptive and inferential statistics were employed in data analysis. Chi-square …

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Knowledge, Attitude And Practice Towards Rational Use Of Antibiotics Among Bangladeshi Medical Tourist In Bangkok, Thailand., Kazi Sabina Arju Jan 2018

Knowledge, Attitude And Practice Towards Rational Use Of Antibiotics Among Bangladeshi Medical Tourist In Bangkok, Thailand., Kazi Sabina Arju

Chulalongkorn University Theses and Dissertations (Chula ETD)

Antibiotics are special drugs used for the prevention and treatment of bacterial infections. Antibiotic resistance tends to increase medical expenses, prolonged hospital stays, and increased death rate. Nowadays, antibiotic resistance is one of the most challenges to global public health. Excessive and inappropriate use of antibiotics plays an important role in increasing antibiotic resistance. Antibiotic resistance is becoming a global health problem, because the ease of international travel may increase the rapid spread of resistant microorganisms around the world. The aim of this study to strengthen the research gap and to describe the socio-demographic factor and to assess the level …

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The Influence Of Indoor Air Pollution Sources On Respiratory Health Of Occupants In Offices : A Cross-Sectional Study At Suan Sunandha Rajabhat University, Bangkok, Thailand, Thammarak Srimarut Jan 2018

The Influence Of Indoor Air Pollution Sources On Respiratory Health Of Occupants In Offices : A Cross-Sectional Study At Suan Sunandha Rajabhat University, Bangkok, Thailand, Thammarak Srimarut

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Indoor air pollution contains several substances and can emanate from a range of sources. In particular importance might be substances known as volatile organic compounds and respirable particulates. The exposure to indoor air pollution can induce a wide range of acute and chronic respiratory health effects. The study's aims were to identify the effect of indoor air pollution sources and concentrations in offices on respiratory health of occupants and identify potential factors that may be related to respiratory health problems. Methods: Fourteen offices were measured the concentration of PM2.5 and TVOC at 1.20 meters high for 8 hours and …

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Effectiveness Of Thai Hermit Exercise (Ruesi Datton) On Mild Cognitive Impairment's Patients, Chomlak Kongart Jan 2018

Effectiveness Of Thai Hermit Exercise (Ruesi Datton) On Mild Cognitive Impairment's Patients, Chomlak Kongart

Chulalongkorn University Theses and Dissertations (Chula ETD)

Mild Cognitive Impairment (MCI) is a recurrent brain disorder in memory. It is caused by the degeneration of the brain cells that is different from an individual's age and develop to dementia. One way to help restore memory is to exercise. Thai hermit exercise is a wisdom in Thai exercise, which improve memory decline for the condition. The study design is randomized control trial. This study aimed to investigate the effectiveness of Thai hermit exercise among patients with MCI. 84 participants were recruited and randomized into intervention (n=42) control(n=42). The intervention group practiced Thai hermit exercise for 10 weeks. Psychological …

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Needs Analysis And Development Of Professional Development Program For Thai Community Pharmacists, Surangkana Puengrung Jan 2018

Needs Analysis And Development Of Professional Development Program For Thai Community Pharmacists, Surangkana Puengrung

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Primary care services, as recommended by the National Health Security Office (NHSO), are crucial for Thai community pharmacists. Training needs for the services and a professional development or training program however remained unexplored. Objectives: To analyze community pharmacists' training needs and develop professional development programs to meet their needs. Methods: A mixed-methods study with two phases was conducted during 2018-2019. Phase 1 was involved in the needs assessment using semi-structured interview with 10 key informants who were community pharmacists and stakeholders based on three levels (i.e. tasks, person, and organization) and needs confirmation with a self-administered questionnaire surveyed in …

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Indonesia's Role In Humanitarian Crisis In Rakhine State Of Myanmar (2012- 2017), Muhammad Indrawan Jatmika Jan 2018

Indonesia's Role In Humanitarian Crisis In Rakhine State Of Myanmar (2012- 2017), Muhammad Indrawan Jatmika

Chulalongkorn University Theses and Dissertations (Chula ETD)

This thesis begins with the question of why does Indonesia consider the humanitarian crisis that occurred in Rakhine State of Myanmar as a very important issue and needs to be taken seriously by conducting soft power diplomacy and humanitarian assistance to address the crisis? Indonesia has the rational choice of conducting soft diplomacy in the form of bilateral and multilateral responses, as well as providing humanitarian assistance in the crisis that occurred in Rakhine state. Theoretical discussion of this paper is carried out on the theory by William D Coplin on various factors that influence the process of foreign policy …

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The Effects Of Communicative Framework Instruction Using Computer-Assisted Pronunciation Training (Capt) On English Pronunciation Ability Of Chinese Undergraduate Students, Ching-Yueh Chang Jan 2018

The Effects Of Communicative Framework Instruction Using Computer-Assisted Pronunciation Training (Capt) On English Pronunciation Ability Of Chinese Undergraduate Students, Ching-Yueh Chang

Chulalongkorn University Theses and Dissertations (Chula ETD)

The study aimed 1) to examine the effects of the communicative framework instruction using CAPT on the English pronunciation ability of Chinese undergraduate students; 2) to investigate the opinions of students towards the communicative framework instruction using CAPT. The participants consisted of 17 Chinese undergraduate students in at Siam University at during the first semester of the 2018 academic year in 2018. The instruments used to collect data were a pronunciation pre-test and a post-test, a student opinion questionnaire, and semi-structured interview questions. The analyzed statistics computed from the data included the mean scores, standard deviation, and Wilcoxon signed ranks …

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Impacts Of Communication Technology And Social Media On Intergenerational Relationships In Bangkok, Marie-Helene Thomas Jan 2018

Impacts Of Communication Technology And Social Media On Intergenerational Relationships In Bangkok, Marie-Helene Thomas

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objective of this research is to explore how communication technology and social media affects the intergenerational relationships between older persons and their adult children in Bangkok. Using Bengston and Schrader's (Bengtson and McChesney 1998) measurement framework for intergenerational relationships, this study examines how communication technology, namely the smart phone and its accompanying applications, Line and Facebook, has impacted the relationship between thirty older persons and their adult children. Purposive sampling was used to select participants from three elderly associations located in different neighbourhoods around Bangkok, data was collected using semi-structured interviews and data was analysed via thematic analysis. The …

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The Creation Of A "Lanna Sense Of Place" Through Fine Arts In Northern Thailand : A Case Study Of Hotel Lobby Decorations In Chiang Mai And Chiang Rai, Muhammad Faizal Abdul Rani Jan 2018

The Creation Of A "Lanna Sense Of Place" Through Fine Arts In Northern Thailand : A Case Study Of Hotel Lobby Decorations In Chiang Mai And Chiang Rai, Muhammad Faizal Abdul Rani

Chulalongkorn University Theses and Dissertations (Chula ETD)

This dissertation will observe and evaluate how the Northern region of Thailand had applied various cultural elements and beliefs in creating a "Sense of Lanna" to attract visitors. How these cultural elements had been applied by the various parties will demonstrate the manner of their commercialization - whether in a positive or negative way. The scope of this research is focused on seven 5-star hotels in Chiang Mai and Chiang Rai. This area was chosen because Chiang Mai is the most award-winning province in Thailand when it comes to tourism especially. This is in addition to the area having many …

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Innovation Of Gonadotropin Releasing Hormone (Gnrh)-Modified Nanocarrier Delivered To Induce Testicular And Mammary Cell Apoptosis, Chatwalee Boonthum Jan 2018

Innovation Of Gonadotropin Releasing Hormone (Gnrh)-Modified Nanocarrier Delivered To Induce Testicular And Mammary Cell Apoptosis, Chatwalee Boonthum

Chulalongkorn University Theses and Dissertations (Chula ETD)

The main overall goal of this study is to investigate the application of modified chitosan as a potential vector for apoptotic gene delivery to gonadotropin-releasing hormone receptor (GnRHR)-expressing cells (i.e. testicular cells and mammary cancer cells). This study reported Gonadotropin Releasing Hormone-modified Chitosan (GnRH-CS) nanoparticle as a promising vector for targeted gene delivery, and a GnRH peptide was used for active targeting of a transgene in GnRHR expressing cells. The physiological characterizations of the prepared nanoparticle were investigated by proton nuclear magnetic resonance spectroscopy (1H NMR), Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and Nanosizer. The prepared GnRH-CS was …

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Validation Of Lamp-Lfd Ehrlichia Canis Dna Sensor Kit, Pipat Jirapiti Jan 2018

Validation Of Lamp-Lfd Ehrlichia Canis Dna Sensor Kit, Pipat Jirapiti

Chulalongkorn University Theses and Dissertations (Chula ETD)

Diagnosis of Canine Monocytic Ehrlichiosis is in light of anamesis, visualized cytoplasmic morulae, clinical signs and laboratory test result of platelet counts. The PCR technique is always a definitive confirmatory test of Ehrlichia canis infection. However, the drawback of PCRs test is crucially needed of laboratory equipments. This drawback is somehow enabled newly DNA based technology to be developed in order to eliminate laborious thermocycler and gel electrophoresis. The LAMP-LFD is on focus by using a single temperature to amplify DNA and no gel electrophoresis involved to detect DNA product. LAMP-LFD is included in DNAsensor test kit that recently developed …

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The Effect Of Monosodium Glutamate On Brain, Liver, Kidney, Testis, Ovary, Fertilization And Hatching Rate In Zebrafish (Danio Rerio), Chortip Sajjaviriya Jan 2018

The Effect Of Monosodium Glutamate On Brain, Liver, Kidney, Testis, Ovary, Fertilization And Hatching Rate In Zebrafish (Danio Rerio), Chortip Sajjaviriya

Chulalongkorn University Theses and Dissertations (Chula ETD)

Monosodium glutamate (MSG) is composed of sodium salt and amino acids that is commonly used to enhance food taste. Although it is safe at consumption level, the adverse effect of MSG had been reported. The present research was intended to evaluate the effect of MSG on the brain, liver, kidney, testes, and ovaries of zebrafish (Danio rerio) which were exposed from embryo stage to adult stage, along with the analyzing of the fertilization rate and hatching rate of zebrafish embryos. From the observation of histopathological changing of different organs of zebrafish after exposed to 10, 100, and 1000 ppm MSG …

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Efficacy Of Tetracycline And Enrofloxacin Against Wolbachia Spp. In Microfilaria Of Brugia Pahangi, Pimsiri Piromkij Jan 2018

Efficacy Of Tetracycline And Enrofloxacin Against Wolbachia Spp. In Microfilaria Of Brugia Pahangi, Pimsiri Piromkij

Chulalongkorn University Theses and Dissertations (Chula ETD)

Brugia pahangi is a major causative agent of animal lymphatic filariasis, one of the neclected tropical disease. Recent studies have also indicated that B. pahangi can cause clinical infection in human, with clinical appearances which are consistent with human lymphatic filariasis. Nowadays, the recognition of Wolbachia as new alternative drug choice for treatment and control of lymphatic filariasis is the most important in anti-filarial chemotherapy. Since, Wolbachia play important roles, including the development, viability, fertility and fecundity of filarial parasites. Depletion of Wolbachia results in sterilization, stunting and death of filarial worms. In this study, we investigated the effects of …

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Efficacy And Safety Evaluations Of Topical Proretinal Nanoparticles, Benchaphorn Limcharoen Jan 2018

Efficacy And Safety Evaluations Of Topical Proretinal Nanoparticles, Benchaphorn Limcharoen

Chulalongkorn University Theses and Dissertations (Chula ETD)

Retinal (retinaldehyde) is one of natural vitamin A metabolites. It is widely used in clinical dermatology such as acne, acne scar, photoaging, wrinkles, psoriasis, skin neoplasia and seborrheic dermatitis. Retinal is a pivotal key to regulate keratinocyte proliferation and differentiation in the epidermis resulting in epidermal thickening and inhibit collagen destruction in the dermis. However, topical application of retinal is still irritative to the skin and chemically and photochemically unstable. Topically applied retinal can induce a retinoid dermatitis. This inflammation is induced by an overload of non-physiological amounts of exogenous retinoic acid in the skin. The adverse effects and physicochemical …

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Genome Characterization Of Quinolone Resistance Associated Genes Of Flavobacterium Columnare Isolated From Columnaris Diseased Asian Sea Bass (Lates Calcarif)Er), Putita Chokmangmeepisarn Jan 2018

Genome Characterization Of Quinolone Resistance Associated Genes Of Flavobacterium Columnare Isolated From Columnaris Diseased Asian Sea Bass (Lates Calcarif)Er), Putita Chokmangmeepisarn

Chulalongkorn University Theses and Dissertations (Chula ETD)

Flavobacterium columnare is Gram negative bacteria which caused columnaris disease in various kinds of freshwater fishes. This study is the first report of F. columnare infection in freshwater culturing Asian sea bass in Thailand. Phenotypic characterization, antimicrobial susceptibility test and quinolone resistant-associated genes of F. columnare were performed. A total 15 of F. columnare were isolated from diseased fishes and phylogenetic analysis revealed that these isolates were belonged to genetic group 2 and 4. From disk diffusion test results, 5 and 6 isolates were resistant to oxolinic (OA) and nalidixic acid (NA) respectively. The highest MIC values to OA and …

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Surveillance Of Influenza A Viruses In A Live Bird Market, Yangon, Myanmar During 2017-2018, Khin Thurain Jan 2018

Surveillance Of Influenza A Viruses In A Live Bird Market, Yangon, Myanmar During 2017-2018, Khin Thurain

Chulalongkorn University Theses and Dissertations (Chula ETD)

Live bird markets play a significant role in highly pathogenic avian influenza (HPAI) virus spread and transmission. In Myanmar, the first HPAI-H5N1 outbreak was reported in 2006. Since 2014, routine influenza A virus surveillance in LBMs have been conducted in Myanmar by the Livestock Breeding and Veterinary Department in cooperation with FAO. However, there is limited information on virus characterization and evolution of influenza viruses in Myanmar. The objectives of this thesis were to detect influenza virus subtypes circulating in different poultry species from Mingalar-Taung-Nyunt live bird market (MTN-LBM) and to determine genetic characteristics and genetic diversity of influenza A …

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