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Full-Text Articles in Medicine and Health Sciences

Vegf164-Mediated Inflammation Is Required For Pathological, But Not Physiological, Ischemia-Induced Retinal Neovascularization, Susumu Ishida, Tomohiko Usui, Kenji Yamashiro, Yuichi Kaji, Shiro Amano, Yuichiro Ogura, Tetsuo Hida, Yoshihisa Oguchi, Jayakrishna Ambati, Joan W. Miller, Evangelos S. Gragoudas, Yin-Shan Ng, Patricia A. D'Amore, David T. Shima, Anthony P. Adamis Aug 2003

Vegf164-Mediated Inflammation Is Required For Pathological, But Not Physiological, Ischemia-Induced Retinal Neovascularization, Susumu Ishida, Tomohiko Usui, Kenji Yamashiro, Yuichi Kaji, Shiro Amano, Yuichiro Ogura, Tetsuo Hida, Yoshihisa Oguchi, Jayakrishna Ambati, Joan W. Miller, Evangelos S. Gragoudas, Yin-Shan Ng, Patricia A. D'Amore, David T. Shima, Anthony P. Adamis

Ophthalmology and Visual Science Faculty Publications

Hypoxia-induced VEGF governs both physiological retinal vascular development and pathological retinal neovascularization. In the current paper, the mechanisms of physiological and pathological neovascularization are compared and contrasted. During pathological neovascularization, both the absolute and relative expression levels for VEGF164 increased to a greater degree than during physiological neovascularization. Furthermore, extensive leukocyte adhesion was observed at the leading edge of pathological, but not physiological, neovascularization. When a VEGF164-specific neutralizing aptamer was administered, it potently suppressed the leukocyte adhesion and pathological neovascularization, whereas it had little or no effect on physiological neovascularization. In parallel experiments, genetically altered VEGF164 …


The Mare Reproductive Loss Syndrome And The Eastern Tent Caterpillar: A Toxicokinetic/Statistical Analysis With Clinical, Epidemiologic, And Mechanistic Implications, Manu Sebastian, Marie G. Gantz, Thomas Tobin, J. Daniel Harkins, Jeffrey M. Bosken, Charlie Hughes, Lenn R. Harrison, William V. Bernard, Dana L. Richter, Terrence D. Fitzgerald Jan 2003

The Mare Reproductive Loss Syndrome And The Eastern Tent Caterpillar: A Toxicokinetic/Statistical Analysis With Clinical, Epidemiologic, And Mechanistic Implications, Manu Sebastian, Marie G. Gantz, Thomas Tobin, J. Daniel Harkins, Jeffrey M. Bosken, Charlie Hughes, Lenn R. Harrison, William V. Bernard, Dana L. Richter, Terrence D. Fitzgerald

Maxwell H. Gluck Equine Research Center Faculty Publications

During 2001, central Kentucky experienced acute transient epidemics of early and late fetal losses, pericarditis, and unilateral endophthalmitis, collectively referred to as mare reproductive loss syndrome (MRLS). A toxicokinetic/statistical analysis of experimental and field MRLS data was conducted using accelerated failure time (AFT) analysis of abortions following administration of Eastern tent caterpillars (ETCs; 100 or 50 g/day or 100 g of irradiated caterpillars/day) to late-term pregnant mares. In addition, 2001 late-term fetal loss field data were used in the analysis. Experimental data were fitted by AFT analysis at a high (P < .0001) significance. Times to first abortion (“lag time”) and abortion rates were dose dependent. Lag times decreased and abortion rates increased exponentially with dose. Calculated dose × response data curves allow interpretation of abortion data in terms of “intubated ETC equivalents.” Analysis suggested that field exposure to ETCs in 2001 in central Kentucky commenced on approximately April 27, was initially equivalent to approximately 5 g of intubated ETCs/day, and increased to approximately 30 g/day at the outbreak peak. This analysis accounts for many aspects of the epidemiology, clinical presentations, and manifestations of MRLS. It allows quantitative interpretation of experimental and field MRLS data and has implications for the basic mechanisms underlying MRLS. The results support suggestions that MRLS is caused by exposure to or ingestion of ETCs. The results also show that high levels of ETC exposure produce intense, focused outbreaks of MRLS, closely linked in time and place to dispersing ETCs, as occurred in central Kentucky in 2001. With less intense exposure, lag time is longer and abortions tend to spread out over time and may occur out of phase with ETC exposure, obscuring both diagnosis of this syndrome and the role of the caterpillars.


Educating Adolescents About Puberty: What Are We Missing?, Hatim A. Omar, Darby H. Mcelderry, Rana M. Zakharia Jan 2003

Educating Adolescents About Puberty: What Are We Missing?, Hatim A. Omar, Darby H. Mcelderry, Rana M. Zakharia

Pediatrics Faculty Publications

Adolescents undergo significant physical and cognitive changes during their pubertal development. These changes contribute to and impact their future development. Educating adolescents at an early age about their expected development decreases the possible anxiety associated with this period of life and also helps adolescents make better choices in regards to their sexuality. In order to assess the degree of education regarding pubertal development and sexuality, we conducted a survey of late adolescents (Median age 19 years) and parents of adolescents. A total of 409 adolescents (237 females, 172 males) and 124 parents completed the survey. 14.4% of teens (36.6% of …


Parenting Adolescents, Sandra L. D'Angelo, Hatim A. Omar Jan 2003

Parenting Adolescents, Sandra L. D'Angelo, Hatim A. Omar

Pediatrics Faculty Publications

The period of adolescence is often thought to be one of intense stress and turmoil. Yet many parents and teens negotiate this developmental stage without extreme family conflict and without sacrificing close relationships. This review summarizes a portion of the literature on parent-adolescent relationships, focusing on monitoring and control of adolescent behavior and parenting style. Basic principles to emphasize when working with adolescents and parents are also included.


Sex Education In The Schools: What Role Does It Play?, Darby H. Mcelderry, Hatim A. Omar Jan 2003

Sex Education In The Schools: What Role Does It Play?, Darby H. Mcelderry, Hatim A. Omar

Pediatrics Faculty Publications

Information regarding pubertal development, sex, pregnancy, and contraception should be provided to children and adolescents in an age-appropriate manner from parents, health care providers, and schools. This article reviews the medical literature on school sex education programs, adolescents' perception of these programs, and the role played by the media, parents, and health care professionals in sexual education of teens.