Double-stranded RNA induces molecular and inflammatory signatures that are directly relevant to COPD.

Polyinosinic:polycytidylic acid (poly I:C) is a synthetic analogue of double-stranded (ds)RNA, a molecular pattern associated with viral infections, that is used to exacerbate inflammation in lung injury models. Despite its frequent use, there are no detailed studies of the responses elicited by a single topical administration of poly I:C to the lungs of mice. Our data provides the first demonstration that the molecular responses in the airways induced by poly I:C correlate to those observed in the lungs of chronic obstructive pulmonary disease (COPD) patients. These expression data also revealed three distinct phases of response to poly I:C, consistent with the changing inflammatory cell infiltrate in the airways. Poly I:C induced increased numbers of neutrophils and natural killer cells in the airways, which were blocked by CXCR2 and CCR5 antagonists, respectively. Using gene set variation analysis on representative clinical data sets, gene sets defined by poly I:C-induced differentially expressed genes were enriched in the molecular profiles of COPD but not idiopathic pulmonary fibrosis patients. Collectively, these data represent a new approach for validating the clinical relevance of preclinical animal models and demonstrate that a dual CXCR2/CCR5 antagonist may be an effective treatment for COPD patients.

Homo- and nor-plakotenin, new carboxylic acids from the Palauan sponge Plakortis lita.

A specimen of Plakortis lita from Palau yielded the new carboxylic acids, homo-plakotenin (2a), the sodium salt of homo-plakotenin (2b), the sodium salt of nor-plakotenin (3), the sodium salt of plakotenin (1b), and the known compound plakotenin (1a). The structures of the new acids were elucidated by interpretation of spectral data and by comparison with the known compound. Compounds 1a, 1b, and 2a were found to significantly reduce proliferation of rheumatoid synovial fibroblasts.

Special education for students with disabilities: analysis and recommendations.

Twenty years ago, the educational rights of students with disabilities were dramatically and firmly established in law and practice. Prior to that time, many students were refused enrollment or special educational services. As recently as 1973, at least one million students were denied enrollment in public schools solely on the basis of their disabilities, and at least two million others were not receiving an education appropriate to their needs. Although every state has provided some form of special education throughout this century, these services were largely at the discretion of local school districts. Only since a federal court case in 1972 and the passage of federal legislation in 1975 have all states been mandated to provide a free, appropriate public education to all students with disabilities. Today, as Parrish and Chambers point out in this journal issue, special education for students with disabilities is the largest categorical program in public schools, costing an estimated $32 billion. Since the passage of Public Law 94-142 in 1975 (later retitled the Individuals with Disabilities Education Act, or the IDEA), the number of elementary and secondary students receiving special education has increased from 3.7 million to 4.6 million, increasing also from 8% to 11% of all students in public schools. According to Parrish and Chambers, the population of students eligible for special education is expected to continue to rise. The IDEA governs the educational rights of individuals from birth to age 21, though only students in elementary and secondary school are addressed in this journal issue. The IDEA allowed access to the public schools for many students who had previously been denied enrollment. The IDEA has also been given partial credit for decreasing the rate of institutionalization of individuals with disabilities. Before the IDEA, many parents had the sole responsibility of meeting all the needs of their severely disabled children 24 hours per day; once schools began to provide extensive services to students with severe disabilities, more families were able to avoid institutionalization. Under the IDEA, states and local districts were given a mandate to provide specialized educational programs to students with special needs, and students and parents were given a mechanism for enforcement of their rights. In a 1989 survey, 94% of parents of students with disabilities agreed that services for these students had improved since the implementation of the IDEA. Yet special education today is widely criticized as expensive, ineffective, inadequately coordinated with regular education, and/or culturally biased. The National Association of State Boards of Education has recommended radical reduction in the size of special education. Special education also has its champions, who argue that many students perform better academically and have better self-esteem when provided with special services, often in a separate setting. This analysis addresses five questions concerning special education under the IDEA: (1) Why are so many students considered disabled? (2) What are the educational needs of students with disabilities? (3) How should appropriate, individualized services be funded? (4) Are the IDEA's procedural protections necessary? (5) Can regular education meet the needs of more students?

Liability for infectious diseases in day care: legal and practical considerations.

A lawsuit directed by parents at a day care program following an outbreak of infectious disease would most likely be based on the legal theory of negligence--the failure to exercise due care as required by circumstances. In the determination of liability for infectious diseases in child day care, the element of causation is most critical. Did the day care facility's actions or failure to act cause the harm? Another important question is whether an infectious disease can be occupational and under what circumstances. Although worker's compensation laws initially had no provisions for occupational disease, now all states recognize responsibility for them. Awareness of potential problems with legal liability and establishment of procedures to minimize risk are important for day care providers, public health officials, clinicians, and parents.

Gaps and excesses in the regulation of child day care: report of a panel.

A panel representing the perspectives of providers, regulators, policy makers, and lawyers discussed day care regulation. The participants identified areas of overregulation caused primarily by the number of separate, uncoordinated regulators. In addition, they identified gaps where improved requirements are needed: smaller group size; emphasis on handwashing procedures; mandatory, ongoing training of providers; and more-defined policy on inclusion or exclusion of mildly ill and asymptomatic children. The number of routine standard-by-standard inspections can be reduced when states identify a few significant standards, compliance with which correlates with compliance with all standards. Education by the state health agency is needed. Pediatricians should know when their patients use day care and be conscious of public health implications when diagnosing infectious disease. More frequent interaction between pediatricians and the day care programs of their patients is needed.

The prevention of postoperative pelvic adhesions following conservative operative treatment for human infertility. A final 3-year follow-up report.

PIP: A combination of Decadreon (dexamethasone) and Phenergan (promethazine) was tested in this collaborative study of 240 infertility patients as a means of preventing postoperative adhesion formation after simple pelvic surgery. 24 patients were lost to follow-up. The overall pregnancy rate among the 240 patients was 51.7% (124): 49% with primary infertility and 58% with secondary infertility conceived after surgery. 90 full-term deliveries were recorded, 27 spontaneous abortions occurred, and 7 ectopic gestations were conceived. In all, 31 cases were reinspected for various reasons after the drug treatment postsurgery; 42% showed no adhesions, 23% showed minimal adhesions, and 35% had significant adhesions. Complications coincident with use of the combined medication were seen in 2.2% (11 of 240) patients. Though this study lacked controls, the authors feel thta the use of corticosteroids postoperatively after pelvic intervention may control the numbers of adhesions which form postoperatively.^ieng