Pharmacology, Toxicology and Environmental Health Commons^™

Quality Control Of Thunbergia La Uriforia Leaf, Pivanuch Roisanga, Meathawee Pumpech, Rutsada Joradol, Pongtip Sithisan, Montri Yasawong

The Thai Journal of Pharmaceutical Sciences

No abstract provided.

Effects Of The Standardized Extract Of Centella Asiatica Eca233 On Human Cytochrome P450, Pichayapa Seeka, Nuansri Niwattisaiwong, Warangkana Warisnoicharoen, Thidarat Winitthana, Mayuree H. Tantisira, Somsong Lawanprasert

The Thai Journal of Pharmaceutical Sciences

The standardized extract of Centella asiatica ECa233 (ECa233) was shown to exhibit learning and memory enhancing effects. Beside toxicity testing data, safety data regarding drug interaction is also required. The purpose of this study was to investigate ...

Simultaneous Spectrophotometric Determination Of Difloxacin And Enrofloxacin In Urine Samples By Partial Least Squares Regression (Pls) And Direct Orthogonal Signal Correction-Partial Least Squares Regression (Disc-Ols) Methods, Kuldeep Kaur, Ashok Kumar Malik, Baldev Singh, M. Godarzi

The Thai Journal of Pharmaceutical Sciences

Simultaneous determination of difloxacin and enrofloxacin using two chemometric methods, partial least squares regression (PLS) and direct orthogonal signal correction-partial least squares regression (DOSC-PLS) is described in this paper. The simultaneous determination of these drugs is difficult due to spectral interferences. The calibration graphs were linear in the range of 1-10 μg mL-1 and 1-9 μg mL-1 with detection limits of 0.52 and 0.15 μg mL-1 for difloxacin and enrofloxacin, respectively. The experimental calibration matrix was designed with 25 mixtures of these drugs. The PLS and DOSC-PLS were used for multivariate calibration of spectrophotometric data. The root mean square error …

Facile Derivative Uv Spectroscopy Method: Simultaneous Estimation Of Tinidazole And Fluconazole In Combined Tablet Dosage Form, Saurabh Pandey, Preeti Pandey, Shaifali Dubey, Udisha Chaturvedi, Awani K. Rai

The Thai Journal of Pharmaceutical Sciences

Two derivative spectrophotometric methods have been developed for simultaneous determination of tinidazole and fluconazole in pharmaceutical formulations. The first method depends on utilization of first derivative UV spectrophotometry, with zero-crossing and peak-to-base measurement at 260.57 & 264.23 nm for fluconazole and 263.86 & 318.85 nm for tinidazole. The second method, compensation technique depends on first derivative of the ratio-spectra by measurements of the amplitudes for tinidazole and fluconazole. Calibration graphs were established for tinidazole and fluconazole in the range of 10-100 μg ml-1 and 2-20 μg ml-1, respectively. All proposed methods have been extensively validated. The results were found to …

Thrombolytic Activity Of Some Spices And Plants Available In Bangladesh, Md. Rakib Ai-Manun, Nabiha Amrin, Jahura Begum, Md. Abdul Mazid

The Thai Journal of Pharmaceutical Sciences

Thrombolytic activities of some plants, namely Tamarindus indica (Fabaceae), Flemingia congesta (Fabaceae), Lawsonia inermis (Lythraceae), Mesua nagassarium (Clusiaceae, and spices, namely Coriandrum sativum (Apiaceae), Curcuma longa (Zingiberaceae), Cinnamomum tamala (Lauraceae), Nigella sativa (Ranunculaceae), Eugenia aromaticum (Myrtaceae), available in Bangladesh, were evaluated using an in vitro model. The thrombolytic activity in terms of percentage of weight loss of in vitro formed clots were found as C. sativum 43.25 ± 7.18%, C. longa 53.32 ± 4.96%, C. tamala 22.10 ± 3.18%, N. sativa 28.49 ± 3.72%, E. aromaticum 32.18 ± 3.10%, T. indica 28.91 ± 2.29%, F. congesta 35.27 ± 7.35%, L. …

Lactobacillus Plantarum T23/3 As A Potential Probiotic Strain Isolated From Faces, Titpawan Nakpheng, Rosainee Kha, Neelam Balekar, Sanae Kaewnopparat, Teerapol Srichana

The Thai Journal of Pharmaceutical Sciences

The present study was undertaken to evaluate the properties of Lactobacillus plantarum T23/3 isolated from the feces of healthy elderly volunteer. The L. plantarum T23/3 showed better tolerance property to bile acid, simulated gastric fluid (SGF) and simulated intestinal fluid (SIF), and exhibited antimicrobial activity against tested enteropathogens. It formed macroscopic granules with surface hydrophobicity and co-aggregated with tested microbial strain. It was resistant to some antibiotics used for treatment of diarrhea so there is possibility to co-administer L. plantarum as probiotic with antidiarrheal therapy. Furthermore, adhesion and significant potential for decreasing adhesion of pathogens (E. coli 2601 and V. …

Application Of A Stability-Indicating Hptlc Method For Simultaneous Determination Of Chloramphenicol And Dexamethasone Sodium Phosphate In Eye Drop, Yimer Seid, Araya Hymete, Adnan A. Bekhit

The Thai Journal of Pharmaceutical Sciences

A high performance thin layer chromatography (HPTLC) method was developed and validated for the simultaneous quantification of dexamethasone sodium phosphate and chloramphenicol in eye drop. The HPTLC separation was achieved on an aluminum-backed layer of silica gel 60F254 using acetonitrile: water: ammonia (10:3:0.5 v/v/v), pH adjusted to 7.8 with 1M HCl, as a mobile phase. The densitometric determination of dexamethasone phosphate and chloramphenicol was carried out at 262 nm. Calibration curves for dexamethasone phosphate and chloramphenicol were linear in the range of 80-300 ng and 400-1400 ng, respectively. The method was validated according to International Conference on Harmonization (ICH) guidelines …

Fabrication Of Lipospheres For Paclitaxel And Assessment Of In Vitro Cytotoxicity Against U373 Cancer Cell Lines, Nilakshi Nerkar, Amrita Bajaj, Shruti Shrikhande, Darshana Jain

The Thai Journal of Pharmaceutical Sciences

Paclitaxel is an antineoplastic drug, effective for various complex cancers especially ovarian and breast cancer. Due to its high hydrophobicity, an adjuvant such as polyethoxylated castor oil (Cremophor EL) has to be used in its clinical administration; however, it causes serious side-effects. Inclusion of paclitaxel in lipid matrix (lipospheres) has been proved to be a good approach to eliminate the need for Cremophor EL and to prolong the release of the drug. This paper describes the development of lipospheres as carriers for paclitaxel. Lipospheres constituted of bioacceptable and biodegradable lipids were fabricated and characterised. Scanning electron microscopy (SEM), differential scanning …

Inhibition Of Human Cytochrome P450 In Vitro By Phyllanthus Amarus And Phyllanthus Emblica Aqueous Extracts, Napaporn Anannarukan, Nuansri Niwattisaiwong, Warangkana Warisnoicharoen, Thidarat Winitthana, Pornpen Pramyothin, Chaiyo Chaichantipyuth, Somsong Lawanprasert

The Thai Journal of Pharmaceutical Sciences

Phyllanthus amarus Schum. & Thonn. and Phyllanthus emblica Linn, are well-known as medicinal herbs with many pharmacological effects. To develop these plants for medical purpose, herb-d'ug interaction study is needed to assure safety of using these plant...

The Prevalence Of Chronic Kidney Disease Among Gout Patients In Nongjik Hospital, Pattani Province, Nealnad Cheyoe, Metta Kuning, Apiradee Lim

The Thai Journal of Pharmaceutical Sciences

This study investigated the prevalence of chronic kidney disease (CKD) and identified factors: body mass index (BMI), hypertension (HT), diabetes mellitus (DM), dyslipidemia, diuretic use, anti-gout and serum uric acid associated with CKD among gout pati...

Anti-Anaemic Activity Of Some Plants In Cucurbitaceae On Phenylhydrazine-Induced Anaemic Rats, V.S. Saravanan, S. Manokaran

The Thai Journal of Pharmaceutical Sciences

The present study was focused to evaluate the anti-anaemic activity of Mukia maderaspatana (MM) and K ed rostis foe tid issim a (KF) of Cucurbitaceae family. Anaemia was induced by administration of phenylhydrazine in the dose of 10 mg/kg for 8 days. The...

Classification Of Plants According To Their Heavy Metal Content Around North Mara Gold Mine, Tanzania: Implication For Phytoremediation, N. Mganga, Mlk Manoko, Z. K. Rulangaranga

Tanzania Journal of Science

Plants like other living organisms respond differently under different environmental conditions. An elevated level of heavy metals is one of the stresses which results into three classes of plants depending on their heavy metal content. The classes of plant species according to their accumulated heavy metals around North Mara Gold Mine were not known. To study such classes, a line transect of 700m long was established opposite the gold mine wastes. A total of eight sampling points were systematically established each after every 100m in that transect. Fifteen plant species were sampled; at least one species per sampling point. Approximately …

Degradation Of Atrazine By White Rot And Soil Fungi, Gerald Presley

Undergraduate Honors Theses

The widespread use of atrazine in agriculture has lead to an abundance of this toxic chemical in the environment. Fungi that have the ability to degrade atrazine into less toxic products have been identified and used in the remediation of atrazine. In this study atrazine degradation in a defined liquid media was characterized in a diverse group of white rot basidiomycete and deuteromycete soil fungi. Atrazine did not have an effect on fungal growth although each species produced a different amount of biomass in culture. Statistical analysis showed that biomass production was an important factor in determining the amount of …

Living With Emerging Contaminants: Proteomics Of 4-Nonylphenol Exposed Arrow Goby (Clevelandia Ios), Sarah Emily Johnson

Master's Theses

Alkylphenol ethoxylates (APEs) are widely used in industrial and household products as surfactants. APEs degrade into more toxic ethoxylates, such as 4-nonylphenol (NP), which has been shown to be an endocrine disruptor and enhance the growth of tumor cells. Nonylphenol is wider spread in Pacific estuaries than originally thought. Organisms in Morro Bay, California contain some of the highest concentrations of NP reported, while containing few other contaminants. As a benthic mud-dwelling fish, the arrow goby (Clevelandia ios) may be exposed to high levels of NP due to high contaminant sequestration rates in anaerobic mud. While ecotoxicology suggests …

An Evaluation Of Coating Material Dependent Toxicity Of Silver Nanoparticles, Thilini Upekshika Silva

Electronic Theses and Dissertations

Silver nanoparticles (AgNPs) synthesized using numerous types of coating materials may exhibit different toxicity effects. The study evaluated coating material dependent toxicity by selecting 3 types of AgNP synthesis methods with different coating materials (citrate, polyvinyl pyrrolidone, and branched polyethyleneimine, coated AgNPs as citrate-AgNPs, PVP-AgNPs, and BPEI-AgNPs respectively). Two acute aquatic toxicity tests were performed; 48hr D. magna and MetPLATE E. coli toxicity tests. Significantly different toxicity effects were observed in D. magna test exhibiting lethal median concentrations (LC50) for citrate-AgNPs, PVP-AgNPs, and BPEI AgNPs respectively as, 2.7, 11.2, and 0.57μg/L. Median inhibitory concentrations (EC50) for MetPLATE tests were 1.27, …

Modelling Β2ar Regulation, Sharat J. Vayttaden

Dissertations and Theses (Open Access)

The β2 adrenergic receptor (β2AR) regulates smooth muscle relaxation in the vasculature and airways. Long- and Short-acting β-agonists (LABAs/SABAs) are widely used in treatment of chronic obstructive pulmonary disorder (COPD) and asthma. Despite their widespread clinical use we do not understand well the dominant β2AR regulatory pathways that are stimulated during therapy and bring about tachyphylaxis, which is the loss of drug effects. Thus, an understanding of how the β2AR responds to various β-agonists is crucial to their rational use. Towards that end we have developed deterministic models that explore the mechanism of drug- induced β2AR regulation. These mathematical models …

Store-Operated Calcium Channels In The Function Of Intracardiac Neurons, Timetria Bonds

USF Tampa Graduate Theses and Dissertations

Proper autonomic regulation of mammalian cardiac function is dependent upon very complex and precise communication among the intracardiac ganglia and individual neurons within the ganglia. An array of neuromodulators is found within the ganglia that direct neuronal activity by modulating the movement of calcium. The current study determines that opioidergic agonists, which have been found to contribute to severe cardiac disease states and intracellular calcium mobilization, are also responsible for changes in the function of the intracardiac neuron via their effects on store-operated calcium channels (SOCs).

Previous studies suggest that phosphorylation plays a role in SOC regulation. Using Fura-2 calcium …

Mountains Of Injustice : Social And Environmental Justice In Appalachia, Michele Morrone, Geoffrey L. Buckley

Ohio University Press Open Access Books

Research in environmental justice reveals that low-income and minority neighborhoods in our nation’s cities are often the preferred sites for landfills, power plants, and polluting factories. Those who live in these sacrifice zones are forced to shoulder the burden of harmful environmental effects so that others can prosper. Mountains of Injustice broadens the discussion from the city to the country by focusing on the legacy of disproportionate environmental health impacts on communities in the Appalachian region, where the costs of cheap energy and cheap goods are actually quite high.

Through compelling stories and interviews with people who are fighting for …

Minimal Structural Requirements Of Alkyl Γ-Lactones Capable Of Antagonizing The Cocaine-Induced Motility Decrease In Planarians, Debra Baker, Sean Deats, Peter Boor, James Pruitt, Oné R. Pagán

Biology Faculty Publications

We recently reported that the natural cyclic lactone, parthenolide, and related analogs prevent the expression of behavioral effects induced by cocaine in planarians and that parthenolide’s γ-lactone ring is required for this effect. In the present work, we tested a series of alkyl γ-lactones with varying chain length (1–8 carbons) to determine their ability to antagonize the planarian motility decrease induced by 200 μM cocaine. Alkyl lactones with up to a 4-carbon alkyl chain did not affect planarian motility or antagonized the cocaine-induced motility decrease; only the compound γ-nonalactone (a γ-lactone with a 5-carbon chain) was able to prevent the …

Reversal Of Glial And Neurovascular Markers Of Unhealthy Brain Aging By Exercise In Middle-Aged Female Mice, Caitlin S. Latimer, James L. Searcy, Michael T. Bridges, Lawrence D. Brewer, Jelena Popović, Eric M. Blalock, Philip W. Landfield, Olivier Thibault, Nada M. Porter

Pharmacology and Nutritional Sciences Faculty Publications

Healthy brain aging and cognitive function are promoted by exercise. The benefits of exercise are attributed to several mechanisms, many which highlight its neuroprotective role via actions that enhance neurogenesis, neuronal morphology and/or neurotrophin release. However, the brain is also composed of glial and vascular elements, and comparatively less is known regarding the effects of exercise on these components in the aging brain. Here, we show that aerobic exercise at mid-age decreased markers of unhealthy brain aging including astrocyte hypertrophy, a hallmark of brain aging. Middle-aged female mice were assigned to a sedentary group or provided a running wheel for …