Medicine and Health Sciences Commons^™

Image Guided Biodistribution Of Drugs And Drug Delivery, Hong Ding, Fang Wu

HWCOM Faculty Publications

Image guided technique is playing an increasingly important role in the investigation of the biodistribution and pharmacokinetics of drugs or drug delivery systems. The application of these new materials and techniques with combined properties of diagnosis and therapy can benefit the development of targeted drug delivery system and modern personalized medicine This special issue provides an up-to-date collection of original research articles and review on the development of novel targeted drug and drug delivery systems combining with non-invasive image guided techniques for chemotherapeutic reagents or DNA delivery.

Image Guided Biodistribution And Pharmacokinetic Studies Of Theranostics, Hong Ding, Fang Wu

HWCOM Faculty Publications

Image guided technique is playing an increasingly important role in the investigation of the biodistribution and pharmacokinetics of drugs or drug delivery systems in various diseases, especially cancers. Besides anatomical imaging modalities such as computed tomography (CT), magnetic resonance imaging (MRI), molecular imaging strategy including optical imaging, positron emission tomography (PET) and single-photon emission computed tomography (SPECT) will facilitate the localization and quantization of radioisotope or optical probe la-beled nanoparticle delivery systems in the category of theranostics. The quantitative meas-urement of the bio-distribution and pharmacokinetics of theranostics in the fields of new drug/probe development, diagnosis and treatment process monitoring as …

Living With Uncertainty: Acting In The Best Interests Of Women, Erica Gollub, Zena Stein

HWCOM Faculty Publications

A recent multi-country study on hormonal contraceptives (HC) and HIV acquisition and transmission among African HIV-serodiscordant couples reported a statistically significant doubling of risk for HIV acquisition among women as well as transmission from women to men for injectable contraceptives. Together with a prior cohort study on African women seeking health services, these data are the strongest yet to appear on the HC-HIV risk. This paper will briefly review the Heffron study strengths and relevant biological and epidemiologic evidence; address the futility of further trials; and propose instead an alternative framework for next steps. The weight of the evidence calls …

Epidemiologic Features Of Vulvovaginal Candidiasis Among Reproductive-Age Women In India, Sujit D. Rathod, Jeffrey D. Klausner, Karl Krupp, Arthur R. Rhinegold, Purnima Madhivanan

HWCOM Faculty Publications

Background. Vulvovaginal candidiasis is characterized by curd-like vaginal discharge and itching, and is associated with considerable health and economic costs. Materials and Methods. We examined the incidence, prevalence, and risk factors for vulvovaginal candidiasis among a cohort of 898 women in south India. Participants completed three study visits over six months, comprised of a structured interview and a pelvic examination. Results. The positive predictive values for diagnosis of vulvovaginal candidiasis using individual signs or symptoms were low (<19%). We did not find strong evidence for associations between sociodemographic characteristics and the prevalence of vulvovaginal candidiasis. Women clinically diagnosed with bacterial vaginosis had a higher prevalence of vulvovaginal candidiasis (Prevalence 12%, 95% CI 8.2, 15.8) compared to women assessed to be negative for bacterial vaginosis (Prevalence 6.5%, 95% 5.3, 7.6); however, differences in the prevalence of vulvovaginal candidiasis were not observed by the presence or absence of laboratory-confirmed bacterial vaginosis. Conclusions. For correct diagnosis of vulvovaginal candidiasis, laboratory confirmation of infection with Candida is necessary as well as assessment of whether the discharge has been caused by bacterial vaginosis. Studies are needed of women infected with Candida yeast species to determine the risk factors for yeast’s overgrowth.

Magneto-Electric Nano-Particles For Non-Invasive Brain Stimulation, Kun Yue, Rakesh Guduru, Jeongmin Hong, Ping Liang, Madhavan Nair, Sakhrat Khizroev

HWCOM Faculty Publications

This paper for the first time discusses a computational study of using magneto-electric (ME) nanoparticles to artificially stimulate the neural activity deep in the brain. The new technology provides a unique way to couple electric signals in the neural network to the magnetic dipoles in the nanoparticles with the purpose to enable a non-invasive approach. Simulations of the effect of ME nanoparticles for non-invasively stimulating the brain of a patient with Parkinson’s Disease to bring the pulsed sequences of the electric field to the levels comparable to those of healthy people show that the optimized values for the concentration of …

Cultural Competency Observation Tool, David R. Brown, Tim Spruill, Agueda Hernandez, Luther Brewster, Michel Celestin, Barry Nierenberg, Rodolfo Bonnin, Siri Akal, Cheryl Brewster, Mitchell Hammer, Simar Singh, Bryan Page

HWCOM Faculty Publications

This observational assessment rubric includes rating of the elements of patient centered communication defined in the Kalamazoo Consensus Statement regarding patient centered communication: These are augmented with sections that highlight factors that emerged in our observations specific to intercultural communication such as language and interpreters, nonverbal communication, mental and social issues with a large cultural overlay (mental health, pain, and disability). In addition, the tool incorporates issues specific to the medical context such as professional competence and professional regard. The rubric is also informed by the developmental model of intercultural sensitivity and Dreyfus's phenomenology of skill acquisition with skill levels …

A Complex Multilevel Attack On Pseudomonas Aeruginosa Algt/U Expression And Algt/U Activity Results In The Loss Of Alginate Production, Robert Sautter, Damaris Ramos, Lisa Schneper, Oana Ciofu, Tina Wassermann, Arne Heydron, Morton Hentzer, Niels Hoiby, Arsalan Kharazmi, Soren Molin, Caroline A. Devries, Dennis E. Ohman, Kalai Mathee

HWCOM Faculty Publications

Infection by the opportunistic pathogen Pseudomonas aeruginosa is a leading cause of morbidity and mortality seen in cystic fibrosis (CF) patients. This is mainly due to the genotypic and phenotypic changes of the bacteria that cause conversion from a typical nonmucoid to a mucoid form in the CF lung. Mucoid conversion is indicative of overproduction of a capsule-like polysaccharide called alginate. The alginate-overproducing (Alg+) mucoid phenotype seen in the CF isolates is extremely unstable. Low oxygen tension growth of mucoid variants readily selects for nonmucoid variants. The switching off mechanism has been mapped to the algT/U locus, and the molecular …

Review Of The History And Current Status Of Cell-Transplant Approaches For The Management Of Neuropathic Pain, Mary J. Eaton, Yerko Berrocal, Stacey Q. Wolfe, Eva Widerström-Noga

HWCOM Faculty Publications

Treatment of sensory neuropathies, whether inherited or caused by trauma, the progress of diabetes, or other disease states, are among the most difficult problems in modern clinical practice. Cell therapy to release antinociceptive agents near the injured spinal cord would be the logical next step in the development of treatment modalities. But few clinical trials, especially for chronic pain, have tested the transplant of cells or a cell line to treat human disease. The history of the research and development of useful cell-transplant-based approaches offers an understanding of the advantages and problems associated with these technologies, but as an adjuvant …

The Regulatory Repertoire Of Pseudomonas Aeruginosa Ampc Ss-Lactamase Regulator Ampr Includes Virulence Genes, Deepak Balasubramania, Lisa Schneper, Massimo Merighi, Roger Smith, Giri Narasimhan, Stephen Lory, Kalai Mathee

HWCOM Faculty Publications

In Enterobacteriaceae, the transcriptional regulator AmpR, a member of the LysR family, regulates the expression of a chromosomal β-lactamase AmpC. The regulatory repertoire of AmpR is broader in Pseudomonas aeruginosa, an opportunistic pathogen responsible for numerous acute and chronic infections including cystic fibrosis. In addition to regulating ampC, P. aeruginosa AmpR regulates the sigma factor AlgT/U and production of some quorum sensing (QS)-regulated virulence factors. In order to better understand the ampR regulon, we compared the transcriptional profile generated using DNA microarrays of the prototypic P. aeruginosa PAO1 strain with its isogenic ampR deletion mutant, PAOΔampR …

Interactive Effects Of Morphine On Hiv Infection: Role In Hiv-Associated Neurocognitive Disorder, Pichili Vijaya Bhaskar Reddy, Sudheesh P. Kanthikeel, Shailendra K. Saxena, Madhavan P.N. Nair

HWCOM Faculty Publications

HIV epidemic continues to be a severe public health problem and concern within USA and across the globe with about 33 million people infected with HIV. The frequency of drug abuse among HIV infected patients is rapidly increasing and is another major issue since injection drug users are at a greater risk of developing HIV associated neurocognitive dysfunctions compared to non-drug users infected with HIV. Brain is a major target for many of the recreational drugs and HIV. Evidences suggest that opiate drug abuse is a risk factor in HIV infection, neural dysfunction and progression to AIDS. The information available …

Potential For Cell-Transplant Therapy With Human Neuronal Precursors To Treat Neuropathic Pain In Models Of Pns And Cns Injury: Comparison Of Hnt2.17 And Hnt2.19 Cell Lines, Mary J. Eaton, Yerko Berrocal, Stacey Q. Wolfe

HWCOM Faculty Publications

Effective treatment of sensory neuropathies in peripheral neuropathies and spinal cord injury (SCI) is one of the most difficult problems in modern clinical practice. Cell therapy to release antinociceptive agents near the injured spinal cord is a logical next step in the development of treatment modalities. But few clinical trials, especially for chronic pain, have tested the potential of transplant of cells to treat chronic pain. Cell lines derived from the human neuronal NT2 cell line parentage, the hNT2.17 and hNT2.19 lines, which synthesize and release the neurotransmitters gamma-aminobutyric acid (GABA) and serotonin (5HT), respectively, have been used to evaluate …

Are Marginalized Women Being Left Behind? A Population-Based Study Of Institutional Deliveries In Karnataka, India, Paul C. Adamson, Karl Krupp, Bhavana Niranjankumar, Alexandra H. Freeman, Mudassir Khan, Purniman Madhivanan

HWCOM Faculty Publications

Background

While India has made significant progress in reducing maternal mortality, attaining further declines will require increased skilled birth attendance and institutional delivery among marginalized and difficult to reach populations.

Methods

A population-based survey was carried out among 16 randomly selected rural villages in rural Mysore District in Karnataka, India between August and September 2008. All households in selected villages were enumerated and women with children 6 years of age or younger underwent an interviewer-administered questionnaire on antenatal care and institutional delivery.

Results

Institutional deliveries in rural areas of Mysore District increased from 51% to 70% between 2002 and 2008. …