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Articles 1561 - 1590 of 1609

Full-Text Articles in Other Pharmacy and Pharmaceutical Sciences

Right-Handed 14-Helix In Β3-Peptides From L-Aspartic Acid Monomers, Kamaljit Kaur, Tara Sprules, Wael Soliman, Reem Beleid, Sahar Ahmed Jan 2008

Right-Handed 14-Helix In Β3-Peptides From L-Aspartic Acid Monomers, Kamaljit Kaur, Tara Sprules, Wael Soliman, Reem Beleid, Sahar Ahmed

Pharmacy Faculty Articles and Research

β-Peptides made from L-aspartic acid monomers form a new class of β3-peptides. Here we report the first three-dimensional NMR solution structure of a β3-hexapeptide (1) from L-aspartic acid monomers in 2,2,2-trifluoroethanol (TFE). We show that 1 forms a right-handed 14-helical structure in TFE. α-peptides from naturally occurring L-amino acids adopt a right-handed α-helix whereas β3-peptides formed from β3-amino acids derived from naturally occurring L-amino acids form left-handed 14-helices. The right-handed 14-helical conformation of 1 is a better mimic of α-peptide conformations. Using the NMR structure of 1 in TFE, we …


Pdgf-Driven Proliferation, Migration, And Il8 Chemokine Secretion In Human Corneal Fibroblasts Involve Jak2-Stat3 Signaling Pathway, Neeraj Vij, Ajay Sharma, Mahesh Thakkar, Sunilima Sinha, Rajiv R. Mohan Jan 2008

Pdgf-Driven Proliferation, Migration, And Il8 Chemokine Secretion In Human Corneal Fibroblasts Involve Jak2-Stat3 Signaling Pathway, Neeraj Vij, Ajay Sharma, Mahesh Thakkar, Sunilima Sinha, Rajiv R. Mohan

Pharmacy Faculty Articles and Research

Purpose: Platelet-derived growth factor (PDGF) is associated with corneal fibroblast migration and proliferation and plays an important role in corneal wound healing. However, the intracellular mechanisms of PDGF-mediated functions in corneal fibroblasts are poorly understood. We tested the hypothesis that PDGF functional activities in the cornea involve the Janus kinase-2/signal transducers and activators of transcription-3 (JAK2-STAT3) signaling pathway and whether PDGF induces the expression of suppressors of cytokine signaling 3 (SOCS3), belonging to the novel family of feedback regulators of cytokine and growth factor activities.

Methods: Human corneal fibroblast (HSF) cultures were used as an in vitro model for functional …


Adenylyl Cyclase Type 6 Overexpression Selectively Enhances Ss-Adrenergic And Prostacyclin Receptor Mediated Inhibition Of Rat Cardiac Fibroblast Function Due To Co-Localization In Lipid Rafts, Xiaoqiu Liu, Muthusamy Thangavel, Shu Qiang Sun, Joseph Kaminsky, Penden Mahautmr, Jeremiah Stitham, John Hwa, Rennolds S. Ostrom Jan 2008

Adenylyl Cyclase Type 6 Overexpression Selectively Enhances Ss-Adrenergic And Prostacyclin Receptor Mediated Inhibition Of Rat Cardiac Fibroblast Function Due To Co-Localization In Lipid Rafts, Xiaoqiu Liu, Muthusamy Thangavel, Shu Qiang Sun, Joseph Kaminsky, Penden Mahautmr, Jeremiah Stitham, John Hwa, Rennolds S. Ostrom

Pharmacy Faculty Articles and Research

Cardiac fibroblasts produce and degrade extracellular matrix and are critical in regulating cardiac remodeling and hypertrophy. Fibroblasts are activated by factors such as transforming growth factor β and inhibited by agents that elevate 3′,5′-cyclic adenosine monophosphate (cAMP) levels. cAMP signal generation and response is known to be compartmentalized in many cell types in part through the colocalization of receptors and specific adenylyl cyclase isoforms in lipid rafts and caveolae. The present study sought to define the localization of key G protein-coupled receptors with adenylyl cyclase type 6 (AC6) in lipid rafts of rat cardiac fibroblasts and to determine if this …


Treatment Of Industrial Wastewater Containing Active Pharmaceutical Ingredients With A Membrane Bioreactor, With The Aim Of Reducing Resource Consumption, Pádraig Colm Ó'Maolcatha Jan 2008

Treatment Of Industrial Wastewater Containing Active Pharmaceutical Ingredients With A Membrane Bioreactor, With The Aim Of Reducing Resource Consumption, Pádraig Colm Ó'Maolcatha

Theses

The biodegradation of a selected active pharmaceutical ingredient (API) during wastewater treatment in a membrane bioreactor (MBR) was examined experimentally. A comparison study was conducted by operating a conventional activated sludge (CAS) pilot plant in parallel to the MBR. The MBR was operated under varying conditions of pH (pH6 and pH8), MLSS (6g/L and l0g/L) and SRT (20 days and 30 days) according to a full factorial design of experiments. In the CAS, pH and SRT were altered as above but MLSS was maintained at 3-4g/L. Comparable average API removal results of 95.5% and 95.7% were obtained for the MBR …


Commencement Program 2007, Loma Linda University Jun 2007

Commencement Program 2007, Loma Linda University

Commencement Programs

CONTENTS

2 | 2006 Events of Commencement

3 | The Academic Procession

4 | Significance of Academic Regalia

5 | The Good Samaritan

6 | The Speakers

13 | The University Honorees

21 | The School Honorees

33 | The Program

  • School of Medicine, 34
  • School of Pharmacy, 45
  • School of Dentistry, 50
  • School of Science and Technology and School of Religion, 60
  • School of Nursing, 68
  • School of Allied Health Professions - Physical Therapy, 75
  • School of Allied Health Professions, 82
  • School of Public Health, 91


Developing A Pharmacy Professional Elective Course: Underserved Populations, Courtney Ann Hedrick May 2007

Developing A Pharmacy Professional Elective Course: Underserved Populations, Courtney Ann Hedrick

Undergraduate Honors Thesis Collection

Objectives. To ascertain the current curriculum exposure, knowledge, and interest in medically underserved populations of 3rd and 4th year professional pharmacy students enrolled at Butler University. Methods. An eleven item survey was designed, involving multiple choice, Likert scale, and open response questions. The survey was administered through the web-based survey software company, Survey Monkey, utilizing the Butler College of Pharmacy and health Sciences email listserv to all P3 and p4 students. Results. P3 and P4 students showed a high degree of interest in taking a professional elective focusing on medically underserved populations. Many of these students also felt the current …


Pharmacy Security: A Survey On Pharmacists' Perceptions And And Preparedness To Handle Prescription Fraud And Pharmacy Robbery, Amy Nicole Lenell May 2007

Pharmacy Security: A Survey On Pharmacists' Perceptions And And Preparedness To Handle Prescription Fraud And Pharmacy Robbery, Amy Nicole Lenell

Undergraduate Honors Thesis Collection

Objective: To evaluate the perceptions of the community pharmacist with respect to prescription fraud and pharmacy robbery as well as their preparedness to handle such situations, with the intent to assess the need for a continuing education program on this topic. Methods: A survey was sent to licensed Indiana pharmacists using a listserv provided by Butler University. Only data from pharmacists currently practicing in the community (retail) setting was accepted and analyzed. The survey includes questions regarding prescription fraud, pharmacy robbery, security measures and demographics. Results: Of 1000 surveys sent, 80 surveys were returned, 47 met selection criteria, and 43 …


Methamphetamine: The New Epidemic, Jessica Gingery Apr 2007

Methamphetamine: The New Epidemic, Jessica Gingery

Honors Capstones

Capstone submitted as a graduation requirement for the BSU Honors Program.


Commencement Program 2006, Loma Linda University Jun 2006

Commencement Program 2006, Loma Linda University

Commencement Programs

CONTENTS

2 | 2006 Events of Commencement

3 | The Academic Procession

4 | Significance of Academic Regalia

5 | The Good Samaritan

6 | The Speakers

15 | The University Honorees

23 | The School Honorees

37 | The Program

  • School of Medicine, 38
  • School of Pharmacy, 47
  • School of Dentistry, 52
  • School of Science and Technology and Faculty of Religion, 63
  • School of Nursing, 74
  • School of Allied Health Professions - Physical Therapy, 80
  • School of Allied Health Professions, 86
  • School of Public Health, 95


Amankah Pengawet Makanan Bagi Manusia ?, Harmita Harmita Apr 2006

Amankah Pengawet Makanan Bagi Manusia ?, Harmita Harmita

Majalah Ilmu Kefarmasian

No abstract provided.


Preparation Of Silica-Coated Lanthanum-Strontium Manganite Particles With Designable Curie Point, For Application In Hyperthermia Treatments, Vuk Uskoković, Aljoša Košak, Miha Drofenik Mar 2006

Preparation Of Silica-Coated Lanthanum-Strontium Manganite Particles With Designable Curie Point, For Application In Hyperthermia Treatments, Vuk Uskoković, Aljoša Košak, Miha Drofenik

Pharmacy Faculty Articles and Research

Silica-coated lanthanum–strontium manganite particles with La0.76Sr0.24MnO3+δ stoichiometric formula, exhibiting Curie temperature at ∼40°C, were prepared by using a traditional solid-state method of synthesis of magnetic ceramic particles, followed by milling and a low-temperature coating procedure in an aqueous alcoholic alkali medium. The properties of the obtained material establish it as a potential candidate for self-regulated power-absorbing and temperature-controlling materials in hyperthermia treatments. Moreover, core-comprising LaSr–manganites with different stoichiometries, ranging from La0.5Sr0.5MnO3+δ to LaMnO3+δ, were synthesized, with magnetic and structural properties examined thereof. Herein reported findings can potentially be …


Cost Prevention Of Hiv, Jerika Lam Jan 2006

Cost Prevention Of Hiv, Jerika Lam

Pharmacy Faculty Articles and Research

"Since the introduction of highly active antiretroviral therapy (HAART) in the late 1990s, management of patients with human immunodeficiency virus (HIV) infection has improved where they are living longer and with fewer incidences of opportunistic illnesses. Furthermore, significant progress has been made in the understanding of the disease, the ability to quantify viral load and correlate with clinical outcomes, genotypic and phenotypic resistance assays designed to assess viral susceptibility, and a heightened awareness and appreciation of the importance of treatment adherence to ensure virologic suppression.' In spite of the benefits that HIV-infected patients may have acquired in terms of more …


Stromal Haze, Myofibroblasts, And Surface Irregularity After Prk, Marcelo V. Netto, Rajiv R. Mohan, Sunilima Sinha, Ajay Sharma, William Dupps, Steven E. Wilson Jan 2006

Stromal Haze, Myofibroblasts, And Surface Irregularity After Prk, Marcelo V. Netto, Rajiv R. Mohan, Sunilima Sinha, Ajay Sharma, William Dupps, Steven E. Wilson

Pharmacy Faculty Articles and Research

The aim of this study was to investigate the relationship between the level of stromal surface irregularity after photorefractive keratectomy (PRK) and myofibroblast generation along with the development of corneal haze.

Variable levels of stromal surface irregularity were generated in rabbit corneas by positioning a fine mesh screen in the path of excimer laser during ablation for a variable percentage of the terminal pulses of the treatment for myopia that does not otherwise generate significant opacity. Ninety-six rabbits were divided into eight groups[.]

Slit lamp analysis and haze grading were performed in all groups. Rabbits were sacrificed at 4 hr …


Effect Of Prophylactic And Therapeutic Mitomycin C On Corneal Apoptosis, Cellular Proliferation, Haze, And Long-Term Keratocyte Density In Rabbits, Marcelo V. Netto, Rajiv R. Mohan, Sunilima Sinha, Ajay Sharma, Pankaj C. Gupta, Steven E. Wilson Jan 2006

Effect Of Prophylactic And Therapeutic Mitomycin C On Corneal Apoptosis, Cellular Proliferation, Haze, And Long-Term Keratocyte Density In Rabbits, Marcelo V. Netto, Rajiv R. Mohan, Sunilima Sinha, Ajay Sharma, Pankaj C. Gupta, Steven E. Wilson

Pharmacy Faculty Articles and Research

PURPOSE—To determine the mechanism through which topical mitomycin C prevents and treats corneal haze after photorefractive keratectomy (PRK) and to examine the effects of dosage and duration of exposure.

METHODS—In 224 New Zealand rabbits, −9.0 diopter PRK with mitomycin C or balanced salt solution was performed. Haze level was graded at the slit-lamp. Rabbits were sacrificed at 4 hours, 24 hours, 4 weeks, or 6 months after surgery and immunohistochemistry was performed with TUNEL assay, Ki67 and α-SMA.

RESULTS—TUNEL-positive apoptotic cells marginally increased in all mitomycin C groups whereas Ki67-positive mitotic cells decreased significantly following mitomycin C application. A greater …


Methods For The Study Of Signaling Molecules In Membrane Lipid Rafts And Caveolae, Rennolds S. Ostrom, Paul A. Insel Jan 2006

Methods For The Study Of Signaling Molecules In Membrane Lipid Rafts And Caveolae, Rennolds S. Ostrom, Paul A. Insel

Pharmacy Faculty Articles and Research

Lipid rafts and caveolae are cholesterol- and sphingolipid-rich microdomains of the plasma membrane that concentrate components of certain signal transduction pathways. Interest in and exploration of these microdomains has grown in recent years, especially after the discovery of the biochemical marker of caveolae, caveolin, and the recognition that caveolin interacts with many different signaling molecules via its scaffolding domain. There are three major types of caveolins (1, 2, and 3), with some selectivity in their expression in different tissues. Results assessing lipid raft/caveolae co-localization of molecules in signal transduction pathways have provided support for the idea that signaling components are …


Identifikasi Senyawa Antioksidan Dalam Spons Callyspongia Sp Dari Kepulauan Seribu, Endang Hanani Dec 2005

Identifikasi Senyawa Antioksidan Dalam Spons Callyspongia Sp Dari Kepulauan Seribu, Endang Hanani

Majalah Ilmu Kefarmasian

Antioxidant activity and identification of antioxidative compounds of Callyspongia sponge from Seribu Island (Kepulauan Seribu) were investigated. The sponge was extracted with acetone and the extract was concentrated using rotary vacuum evaporator. DPPH and tiocyanate methods were used to examine the antioxidant activity of the extract. The extract exhibited strong antioxidant activity in DPPH method with IC50 of 41.21 µg/ml. Chemical analysis indicated that the antioxidative compound in the sponge was alkaloid group.


Application Of Polyelectrolyte Layer-By-Layer Nano-Assembly For Surface Modification, Encapsulation And Controlled Release, Nikhil Anil Pargaonkar Oct 2005

Application Of Polyelectrolyte Layer-By-Layer Nano-Assembly For Surface Modification, Encapsulation And Controlled Release, Nikhil Anil Pargaonkar

Doctoral Dissertations

In this study, we applied the traditional Electrostatic layer-by-layer (ELBL) assembly procedure to fabricate nanothin films over flat surfaces, and modify particle surfaces to influence the drug particle size, and drug release. The ELBL assembly has previously been applied to fabricate multilayer nano-scale thin films, but its ability to instantaneously influencing particle size is unique. Other unique observations such as influence on drug release as a result of polymer complexation, and thermal changes occurring during layer fabrication are recorded.

The ELBL self-assembly process was applied to produce dexamethasone particles layered with various polyelectrolyte layer combinations. These combinations were further applied …


Rna Therapeutic, Pendekatan Baru Dalam Terapi Gen, Amarila Malik Aug 2005

Rna Therapeutic, Pendekatan Baru Dalam Terapi Gen, Amarila Malik

Majalah Ilmu Kefarmasian

Some diseases, such as cancer, hereditary and genetic diseases, as well as viral infectious diseases, have been treated unsatisfied by the conventional therapy so far, and even more, by the gene therapy. Together with the pharmaceutical industries, researchers put their best effort to hunt some molecules that can be more favorable for such kind of therapy. After a pivotal study reported in May, 2001, it is certain that Ribonucleic acid (RNA) could effectively silence gene expression in mammalian cell line, so it was then proposed in 2004 the term RNA therapeutics. Antisense RNA therapy which came into the stage earlier …


Non-Human Primates In Medical Research And Drug Development: A Critical Review, Jarrod Bailey Jan 2005

Non-Human Primates In Medical Research And Drug Development: A Critical Review, Jarrod Bailey

Laboratory Experiments Collection

There is much current debate surrounding the use of non-human primates (NHPs) in medical research and drug development. This review, stimulated by calls for evidence from UK-based inquiries into NHP research, takes a critical view in order to provide some important balance against papers supporting NHP research and calling for it to be expanded. We show that there is a paucity of evidence to demonstrate the positive contribution or successful translation of NHP research to human medicine, that there is a great deal of often overlooked data showing NHP research to be irrelevant, unnecessary, even hazardous to human health and …


Mouse Cytomegalovirus M33 Is Necessary And Sufficient In Virus-Induced Vascular Smooth Muscle Cell Migration, Ryan Melnychuk, Patsy Smith, Craig N. Kreklywich, Franziska Ruchti, Jennifer Totonchy, Laurel Hall, Lambert Loh, Jay A. Nelson, Susan L. Orloff, Daniel N. Streblow Jan 2005

Mouse Cytomegalovirus M33 Is Necessary And Sufficient In Virus-Induced Vascular Smooth Muscle Cell Migration, Ryan Melnychuk, Patsy Smith, Craig N. Kreklywich, Franziska Ruchti, Jennifer Totonchy, Laurel Hall, Lambert Loh, Jay A. Nelson, Susan L. Orloff, Daniel N. Streblow

Pharmacy Faculty Articles and Research

Mouse cytomegalovirus (MCMV) encodes two potential seven-transmembrane-spanning proteins with homologies to cellular chemokine receptors, M33 and M78. While these virus-encoded chemokine receptors are necessary for the in vivo pathogenesis of MCMV, the function of these proteins is unknown. Since vascular smooth muscle cell (SMC) migration is of critical importance for the development of atherosclerosis and other vascular diseases, the ability of M33 to promote SMC motility was assessed. Similar to human CMV, MCMV induced the migration of mouse aortic SMCs but not mouse fibroblasts. To demonstrate whether M33 was required for MCMV-induced SMC migration, we employed interfering-RNA technology to specifically …


Entrepreneurial Orientation As A Basis For Classification Within A Service Industry: The Case Of Retail Pharmacy Industry, Thanigavelan Jambulingam, Ravi Kathuria, William R. Doucette Nov 2004

Entrepreneurial Orientation As A Basis For Classification Within A Service Industry: The Case Of Retail Pharmacy Industry, Thanigavelan Jambulingam, Ravi Kathuria, William R. Doucette

Business Faculty Articles and Research

To date, service classification research has primarily taken a macro view, creating service typologies or taxonomies by using dimensions such as customer contact or degree of labor intensity. Such classification schemes, though helpful in deciphering critical management issues and positioning strategies between service industries, tend to treat an entire industry, such as airlines, as a single homogenous entity. However, organizations in the same industry often use intangible resources, such as entrepreneurial orientation processes, to compete with one another. Resource-advantage theory suggests that organizations utilize intangible resources to build long-term strategies and a sustainable competitive advantage leading to superior performance. We …


Purchasing Pharmaceuticals (Health, Nutrition And Population (Hnp) Discussion Paper), Ulrika Enemark, Anita Alban, Enrique Seoane-Vazquez Sep 2004

Purchasing Pharmaceuticals (Health, Nutrition And Population (Hnp) Discussion Paper), Ulrika Enemark, Anita Alban, Enrique Seoane-Vazquez

Pharmacy Faculty Books and Book Chapters

This paper discusses the purchasing of pharmaceuticals as a key component of costeffective and equitable healthcare delivery. Pharmaceuticals account for a high, sometimes the dominant share of health expenditures in developing countries, but the desired health outcomes can only be achieved if the adequate medicines reach the right people and are used in the correct way. This requires purchasing arrangements that take into account the information asymmetry between patients and providers, ensure selection of effective, safe and affordable medicines and set economic incentives in a way that encourages rational drug use. The organizational and institutional frameworks define the roles of …


Pembuatan Niosom Berbasis Maltodekstrin De 5-10 Dari Pati Singkong (Manihot Utilissima), Mahdi Jufri, Effionora Anwar, Joshita Djajadisastra Apr 2004

Pembuatan Niosom Berbasis Maltodekstrin De 5-10 Dari Pati Singkong (Manihot Utilissima), Mahdi Jufri, Effionora Anwar, Joshita Djajadisastra

Majalah Ilmu Kefarmasian

Niosomes are non ionic surfactant vesicles that have potential application in the delivery of hydrophobic or amphilic drugs. We developed proniosomes, a dry formulation using a maltodextrin as a carrier coated with non ionic surfactant, which can be used to produce niosomes within a minutes by addition of hot water followed by agitation. A novel method is reported here for rapid preparation of proniosomes with wide range of surfactant loading. Maltodextrin DE 5-10 was hidrolyzed from tapioca starch using Thermamyl L 120 da Novo at 85ºC. The result from SEM analyses shown that proniosomes appear very similar to the maltodextrin, …


Penyuluhan Penggunaan Oralit Untuk Menanggulangi Diare Di Masyarakat, Harianto Harianto Apr 2004

Penyuluhan Penggunaan Oralit Untuk Menanggulangi Diare Di Masyarakat, Harianto Harianto

Majalah Ilmu Kefarmasian

Diarrhea is one of the common deseases and a attack any level of ages. Diarrhea can be tuated effectively by using oralit to replace the lost of body water. To increase the use of oralit against diarrhea, this trestment should be socialized to public with undergo a general lecture to enhanced the public knowledges cncerning diarrhea and causing factors, to make a group discussion of senior citizen and public figures to build positive attitude in using oralit, and to demonstrate the processing of oralit/LGG and how to use it to people.


Pemberian Vaksin Melalui Tanaman Transgenik, Maksum Radji Apr 2004

Pemberian Vaksin Melalui Tanaman Transgenik, Maksum Radji

Majalah Ilmu Kefarmasian

Vaccines have played an important role in preventive medicine since Edward Jenner discovered that cowpox induced protection against human smallpox. Until recently, a vaccination has meant a needle in the arm. However, with the increasing need for inexpensive, easily administered vaccines, along with the improvements in genetic engineering, the concept of edible vaccines is fast becoming reality. This is especially important in developing countries, where it is estimated that three to five million children die each year from common diseases, which could have easily been prevented with the proper vaccination. Compared to traditional lab-synthesized vaccines, plants are capable of producing …


Pengaruh Kandungan Pati Singkong Terpregelatinasi Terhadap Karakteristik Fisik Tablet Lepas Terkontrol Teofilin, Juheini Juheini, Iskandarsyah Iskandarsyah, Animar J.A, Jenny Jenny Apr 2004

Pengaruh Kandungan Pati Singkong Terpregelatinasi Terhadap Karakteristik Fisik Tablet Lepas Terkontrol Teofilin, Juheini Juheini, Iskandarsyah Iskandarsyah, Animar J.A, Jenny Jenny

Majalah Ilmu Kefarmasian

In order to make use of pregelatinized Manihot starch in controlled release tablet, the research was done by heating the starch suspension up to its gelatinized temperatur, then dried. The particle size of pregelatinized Manihot starch used were (100-150 mesh) : (150-250 mesh) : smaller than 200 mesh = 3,5 : 1 : 1. The effect of pregelatinized Manihot starch on physical characteristic of Theophyllin controlled relase tablet was known by using 4 formulas containing variety of pregelatinized starch as follows: 30%, 40%, 50%, and 60%. Evaluation on the tablet results including tablet mass and size uniformity, hardness and friability. …


Pemanfaatan Maltodekstrin Pati Terigu Sebagai Eksipien Dalam Formula Sediaan Tablet Dan Niosom, Effionora Anwar, Joshita Djajadisastra, Arry Yanuar, Anton Bahtiar Apr 2004

Pemanfaatan Maltodekstrin Pati Terigu Sebagai Eksipien Dalam Formula Sediaan Tablet Dan Niosom, Effionora Anwar, Joshita Djajadisastra, Arry Yanuar, Anton Bahtiar

Majalah Ilmu Kefarmasian

The Use of Maltodextrin from Wheat Starch as an Exipient in Formula Tablet and Niosom dosage form. Wheat starch normally can be used as a tablet filler only, because the flow rate and binding capacity are not good enough. The wheat starch should be treated as follows : protein and amine free Bogasari wheat flour starch were hydrolyzed by α-amylase enzyme (Liquezym EX®) at variable temperature and time incubation to produce maltodextrin with different Dextrose Equivalent (DE) value. The maltodextrin could be used as tablet binder on wet granulation, tablet filler and binder on direct compress, a proniosom carrier to …


Optimasi Biotransformasi Total Sterol Limbah Tahu Menggunakan Mycobacterium Phlei Dsm 43286 Menjadi 1,4-Androstadien-3,17-Dion, Dengan Pengaruh Variasi Konsentrasi Inhibitor A, A’- Dipiridil, Maryati Kurniadi, Usman Sumo Friend Tambunan, Harmita Harmita Apr 2004

Optimasi Biotransformasi Total Sterol Limbah Tahu Menggunakan Mycobacterium Phlei Dsm 43286 Menjadi 1,4-Androstadien-3,17-Dion, Dengan Pengaruh Variasi Konsentrasi Inhibitor A, A’- Dipiridil, Maryati Kurniadi, Usman Sumo Friend Tambunan, Harmita Harmita

Majalah Ilmu Kefarmasian

Isolation of total sterol from waste product of soy bean cake has been conducted, followed by biotransformation to 1,4-androstadien-3,17-dione (ADD). The waste product consist of; β-sitosterol, stigmasterol, kaemfesterol, which are isolated by column chromatography technique using silica gel as stationary phase and chloroform as mobile phase. Biotransformation was conducted by using Mycobacterium phlei DSM 43286 in the present of α, α’- dipiridil as an inhibitor with concentration of 0,5; 1; 1,5; 2,0 mM. The main product of biotransformation were ADD and pregnenolon. The optimum yield of ADD 0,48% is achieved by adding 1,5 mM α, α’- dipiridil are two hours …


Nitric Oxide Inhibition Of Adenylyl Cyclase Type 6 Activity Is Dependent Upon Lipid Rafts And Caveolin Signaling Complexes, Rennolds S. Ostrom, Richard A. Bundey, Paul A. Insel Jan 2004

Nitric Oxide Inhibition Of Adenylyl Cyclase Type 6 Activity Is Dependent Upon Lipid Rafts And Caveolin Signaling Complexes, Rennolds S. Ostrom, Richard A. Bundey, Paul A. Insel

Pharmacy Faculty Articles and Research

Several cell types, including cardiac myocytes and vascular endothelial cells, produce nitric oxide (NO) via both constitutive and inducible isoforms of NO synthase. NO attenuates cardiac contractility and contributes to contractile dysfunction in heart failure, although the precise molecular mechanisms for these effects are poorly defined. Adenylyl cyclase (AC) isoforms type 5 and 6, which are preferentially expressed in cardiac myocytes, may be inhibited via a direct nitrosylation by NO. Because endothelial NO synthase (eNOS and NOS3), β-adrenergic ( AR) receptors, and AC6 all can localize in lipid raft/caveolin-rich microdomains, we sought to understand the role of lipid rafts in …


The Evolving Role Of Lipid Rafts And Caveolae In G Protein-Coupled Receptor Signaling: Implications For Molecular Pharmacology, Rennolds S. Ostrom, Paul A. Insel Jan 2004

The Evolving Role Of Lipid Rafts And Caveolae In G Protein-Coupled Receptor Signaling: Implications For Molecular Pharmacology, Rennolds S. Ostrom, Paul A. Insel

Pharmacy Faculty Articles and Research

The many components of G-protein-coupled receptor (GPCR) signal transduction provide cells with numerous combinations with which to customize their responses to hormones, neurotransmitters, and pharmacologic agonists. GPCRs function as guanine nucleotide exchange factors for heterotrimeric (α, β, γ) G proteins, thereby promoting exchange of GTP for GDP and, in turn, the activation of ‘downstream’ signaling components. Recent data indicate that individual cells express mRNA for perhaps over 100 different GPCRs (out of a total of nearly a thousand GPCR genes), several different combinations of G-protein subunits, multiple regulators of G-protein signaling proteins (which function as GTPase activating proteins), and various …