Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Library Materials”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 487 records · Page 27Linked to original sources

How little is enough? The evidence for post-vasectomy testing.

PURPOSE: Post-vasectomy semen analysis (PVSA) is the traditional method of confirming sterility after vasectomy. However, PVSA protocols vary in the end points accepted, and the number and timing of tests. In this systematic review we make evidence based recommendations on the appropriate PVSA protocol. MATERIALS AND METHODS: Databases (MEDLINE, Current Contents, Cochrane Library and EMBASE) were searched up to and including March 2003. Studies were included if they dealt with post-vasectomy testing and contained data on at least 1 of the time or number of ejaculations to azoospermia, pregnancy, repeat vasectomy and histological analysis of vas specimens. RESULTS: A total of 56 studies were included in the review. Time to achieve azoospermia was variable, although the median incidence of patients with azoospermia was consistently more than 80% after 3 months and after 20 ejaculations. A small percent of patients (14,845 or 1.4%) demonstrated persistent nonmotile sperm, although some of them eventually achieved azoospermia. The reappearance of nonmotile sperm was reported in 7 studies, occurring up to 22 months after vasectomy. CONCLUSIONS: The evidence supports a PVSA protocol with 1 test showing azoospermia after 3 months and 20 ejaculations. If the sample is positive, periodic testing can continue until azoospermia is achieved. Patients with persistent nonmotile sperm in low numbers could be given cautious assurance of success. No evidence was located to support histological testing of the excised vas deferens.

Clinical Protocols↗

Nonoperative Management is Associated With Similar Long-Term Patient-Reported Outcomes Compared With Surgery for Cervical Radiculopathy: A Systematic Review and Meta-analysis.

STUDY DESIGN: Systematic review and meta-analysis. OBJECTIVE: To compare long-term patient-reported outcomes between surgical and nonoperative management for cervical radiculopathy. SUMMARY OF BACKGROUND DATA: Cervical radiculopathy is a common condition associated with substantial morbidity. While both surgical and nonoperative approaches are effective, it remains unclear which patients benefit most from each strategy and whether earlier operative intervention confers meaningful long-term advantage. MATERIALS AND METHODS: PubMed, Embase, and the Cochrane Library were searched from inception to January 2026 for randomized and observational studies comparing surgical and nonoperative management for cervical radiculopathy. Primary outcomes included visual analog scale (VAS) scores for neck and arm pain, neck disability index (NDI), and overall clinical success. Secondary outcomes included analgesia use and sick leave. Random-effects meta-analyses were performed using restricted maximum likelihood estimation. Risk of bias was assessed using RoB 2 and ROBINS-I, and certainty of evidence using GRADE. RESULTS: Eleven studies comprising 1154 patients (surgical: 522; nonoperative: 632) were included. Surgery was not associated with superior outcomes in VAS for arm pain (MD: -0.67, 95% CI: -1.59 to 0.26, P =0.12), VAS for neck pain (MD: -0.50, 95% CI: -1.38 to 0.38; P =0.19), or NDI (MD: -3.69, 95% CI: -9.63 to 2.25, P =0.16) after 12 months of treatment, nor in overall success (RR: 1.11, 95% CI: 0.93-1.34, P =0.21). No significant differences were observed in analgesia use ( P =0.54) or sick leave ( P =0.48) at last follow-up. Most studies were rated serious risk of bias and overall certainty of evidence was moderate. CONCLUSION: Evidence from this pooled analysis suggests that long-term pain, disability, and functional outcomes are comparable between patients selected for nonoperative management and those selected for surgery. These findings reflect outcomes within selected cohorts and should not be interpreted as evidence of therapeutic equivalence. LEVEL OF EVIDENCE: Level II.

Humans↗

Implant therapy in partially edentulous, periodontally compromised patients: a review.

AIM: The purpose of the present study was to perform a review using a systematic approach to evaluate the long-term (>/=5 years) success of implants placed in partially edentulous patients with a history of periodontitis as evidenced by loss of supporting bone and implant loss. MATERIAL & METHODS: An electronic search of the National Library of Medicine, Washington DC (Medline-PubMed) was performed using specific search terms to identify studies assessing, in periodontitis patients, the success of implants with regard to bone level outcomes. Search was performed on abstracts registered up to October 2003. RESULTS: The searches identified 877 abstracts. Titles and abstracts were independently screened by two reviewers (G.A.W. & K.M.B.) to identify publications that met the inclusion criteria. Review of these abstracts resulted in 13 publications for detailed review. These papers were reviewed by the three authors. Finally four papers which met the criteria of eligibility were independently selected by the three reviewers. CONCLUSION: Based on the limited data, it seems justified to conclude that the outcome of implant therapy in periodontitis patients may be different compared to individuals without such a history as evidenced by loss of supporting bone and implant loss.

Alveolar Bone Loss↗

Role of US in detection of Crohn disease: meta-analysis.

PURPOSE: To evaluate the accuracy of ultrasonography (US) in the detection of Crohn disease in adults by systematically reviewing both cohort studies (those including patients whose clinical characteristics were consistent with those caused by an inflammatory bowel disease) and case-control studies (those in which patients with Crohn disease were compared with patients with other bowel diseases or healthy control subjects). MATERIALS AND METHODS: The MEDLINE, EMBASE, and Cochrane Library databases were used to retrieve all the cross-sectional studies that assessed the diagnostic accuracy of US against that of one of several predefined reference standards (ie, radiologic, endoscopic, or histologic findings). The studies that fulfilled the inclusion criteria were identified, and their methodological quality was evaluated. Of the 2860 primary studies identified, two case-control and five cohort series fulfilled the inclusion criteria. Statistical analysis was performed by using the summary receiver operating characteristic (SROC) model. RESULTS: The ranges of US sensitivity and specificity for the diagnosis of Crohn disease reported for the included series were 75%-94% and 67%-100%, respectively; the heterogeneity of these values prevented the calculation of a cumulative value. The SROC curve revealed a clear cutoff effect that depended on the chosen bowel wall thickness threshold. Sensitivity and specificity of 88% and 93%, respectively, were achieved when a bowel wall thickness threshold greater than 3 mm was used, and sensitivity and specificity of 75% and 97%, respectively, were achieved when a threshold greater than 4 mm was used. CONCLUSION: US examination seems appropriate for confirming or excluding Crohn disease as a diagnosis in a clinical context characterized by a pretest probability of Crohn disease that ranges from 12% to about 60%. In particular, for Crohn disease limited to the ileum, US may represent a valid alternative to the small-bowel series, while for colonic involvement US may be useful in ruling out the diagnosis.

Adult↗

The ways and means of national health care reform, 1974 and beyond.

Little attention has been paid in the health policy and welfare state literature to the politics of health care reform in the 1970s. Drawing on newspaper accounts and archival material collected from the Gerald R. Ford Presidential Library and the National Archives, I outline the political history of health care reform in the 93rd Congress. In doing so, I highlight critical institutional, environmental, and strategic lessons that today's reformers can learn from the experience of 1974.

Health Care Reform↗

Consumer health information services in the hospital setting.

Before planning for provision of Consumer Health Information Services, the librarian and administration must anticipate the problems encountered in sharing funds, personnel, space, and materials with an existing medical or patient education library. Establishing new space within or outside the hospital, or participating in community projects which meet consumer health information needs, are important considerations for planners. This article sets forth the place of some CHI services in the hospital setting, and how they relate to other library services. Differences between hospital library support for Patient Education and for Consumer Health Information services are discussed.

Computer Communication Networks↗

Childbirth among the Canadian Inuit: a review of the clinical and cultural literature.

BACKGROUND: This study reviews the historical, anthropological and biomedical literature on childbirth among Canadian Inuit resident in the Canadian Arctic. The modern period is characterised by increased tension as southern intervention replaced traditional birthing with a biomedical model and evacuation to metropolitan hospitals for birth. Inuit concern over the erosion of traditional culture has confronted biomedical concern over perinatal outcomes. Recently, community birthing centres have been established in Nunavik and Nunavut in order to integrate traditional birthing techniques with biomedical support. OBJECTIVES: To review the literature on Inuit childbirth in order to suggest avenues for future research. STUDY DESIGN: Material for this review was gathered through combining library searches, database searches in ANTHROPOLOGYPlus, MEDLINE, CINAHL and Science-Direct, and a bibliographic search through the results. RESULTS: Epidemiological studies of Inuit childbirth are outdated, inconclusive, or inseparable from non-Inuit data. Anthropological studies indicate that evacuation for childbirth has deleterious social and cultural effects and that there is considerable support for traditional communal birthing in combination with biomedical techniques and technology. CONCLUSIONS: Investigation of alternative solutions to maintaining acceptable perinatal outcomes among the Inuit seems desirable. Epidemiological and comparative qualitative studies of perinatal outcomes across the Arctic are needed to reconcile the cultural desirability of communal birthing with claims of its medical feasibility.

Air Ambulances↗

Extending continuing education to rural area nurses.

In response to the educational needs of rural Midwest nurses, several federal grants have been administered cooperatively by the continuing education (CE) departments of Creighton University School of Nursing and the University of Nebraska College of Nursing. This article focuses on the developmental process and outcomes of the last two of eight modules designed for rural nurses. The modules were presented as separate 1-day offerings and then made available as library loan items that included written and audiovisual materials. At the conclusion of the final grant period, a 2-day "Teach-the-Trainer" seminar was held that not only made all previously developed resources available to rural nurse volunteers, but also provided practical experience in teaching techniques. Participants' pre- and post- "Comfort Scales" were computed and revealed a general increase in their "comfort" of presenting the modules on their own (e.g., requesting CE credit, determining audiovisual use, and using handouts).

Curriculum↗

How to access online research reviews to inform nursing practice.

Government recognition of the fact that the NHS needs a service-wide strategy on information technology has opened up access to a many online resources. This article explains how nurses can access and use electronically stored material, such as that held by the Cochrane Library.

Clinical Nursing Research↗

Physical mapping of the von Recklinghausen neurofibromatosis region on chromosome 17.

The von Recklinghausen neurofibromatosis (NF1) locus has been linked to chromosome 17, and recent linkage analyses place the gene on the proximal long arm. NF1 probably resides in 17q11.2, since two unrelated NF1 patients have been identified who possess constitutional reciprocal translocations involving 17q11.2 with chromosomes 1 and 22. We have used a somatic-cell hybrid from the t(17;22) individual, along with other hybrid cell lines, to order probes around the NF1 locus. An additional probe, 17L1, has been isolated from a NotI linking library made from flow-sorted chromosome 17 material and has been mapped to a region immediately proximal to the translocation breakpoint. While neither NF1 translocation breakpoint has yet been identified by pulse-field gel analysis, an overlap between two probes, EW206 and EW207, has been detected. Furthermore, we have identified the breakpoint in a non-NF1 translocation, SP-3, on the proximal side of the NF1 locus. This breakpoint has been helpful in creating a 1,000-kb pulsed-field map, which includes the closely linked NF1 probes HHH202 and TH17.19. The combined somatic-cell hybrid and pulsed-field gel analysis we report here favors the probe order D17Z1-HHH202-TH17.19-CRYB1-17L1-NF1- (EW206, EW207, EW203, L581, L946)-(ERBB2, ERBA1). The agreement in probe ordering between linkage analysis and physical mapping is excellent, and the availability of translocation breakpoints in NF1 should now greatly assist the cloning of this locus.

Animals↗

Molecular mapping of the Edwards syndrome phenotype to two noncontiguous regions on chromosome 18.

In an effort to identify regions on chromosome 18 that may be critical in the appearance of the Edwards syndrome phenotype, we have analyzed six patients with partial duplication of chromosome 18. Four of the patients have duplications involving the distal half of 18q (18q21.1-qter) and are very mildly affected. The remaining two patients have most of 18q (18q12.1-qter) duplicated, are severely affected, and have been diagnosed with Edwards syndrome. We have employed FISH, using DNA probes from a chromosome 18-specific library, for the precise determination of the duplicated material in each of these patients. The clinical features and the extent of the chromosomal duplication in these patients were compared with four previously reported partial trisomy 18 patients, to identify regions of chromosome 18 that may be responsible for certain clinical features of trisomy 18. The comparative analysis confirmed that there is no single region on 18q that is sufficient to produce the trisomy 18 phenotype and identified two regions on 18q that may work in conjunction to produce the Edwards syndrome phenotype. In addition, correlative analysis indicates that duplication of 18q12.3-q22.1 may be associated with more severe mental retardation in trisomy 18 individuals.

Abnormalities, Multiple↗

An islet-cell protein tyrosine phosphatase is a likely precursor to the 37-kDa autoantigen in type 1 diabetes: human and macaque sequences, tissue distribution, unique and shared epitopes, and predictive autoantibodies.

BACKGROUND: We sought to identify novel islet-cell autoantigens to better understand the pathogenesis, prediction, and immunotherapy of type 1 diabetes. MATERIALS AND METHODS: Macaque and human islet cDNA libraries expressed in mammalian cells were screened with human diabetes sera. A positive clone was sequenced directly and after 5' rapid amplification of cDNA ends (RACE). Northern blotting and in situ hybridization revealed the tissue distribution of the corresponding protein. Antigen, expressed by in vitro translation, and tryptic peptides were analyzed by SDS-PAGE. For the immunoprecipitations, 183 diabetic, 60 prediabetic, and 91 control sera were used. Truncated antigens were used in immunoprecipitations for epitope mapping. Recombinant antigen expressed in transfected fibroblasts was used in competition assays. RESULTS: Sequencing yielded an 111-kDa, 1,013 amino acid, transmembrane protein (M1851) containing consensus protein tyrosine phosphatase (PTPase) sequence. M1851 was 77% identical in the intracellular domain, but only 31% identical extracellularly, to the islet-cell autoantigen ICA512. mRNA localized to brain, prostate, pancreatic islets, and adrenal medulla. After limited trypsinization, the in vitro translated antigen was 37 kDa. M1851 was recognized by 47% of prediabetes sera, 31% of new diabetes sera, but only 1% of healthy controls. Only 1/73 sera binding M1851 failed to bind ICA512, whereas 42/114 binding ICA512 did not bind M1851. M1851 reactivity was not fully displaced by ICA512 in 24/49 sera. Removing the C-terminal 27, 80, or 160 amino acids of M1851 decreased reactivity by 70%, 90%, and 100%, respectively. CONCLUSIONS: This new islet-cell PTPase is likely to be the precursor to the 37-kDa tryptic fragment antigen. It is structurally related to ICA512 but has distinct diabetes autoantibody epitopes located at the C terminus.

Amino Acid Sequence↗

Full-scale 'naïve' human antibody repertoires assembled from VH and VL variable regions.

Very large 'naïve' human antibody repertoires have been obtained from RT-PCR cloned VH and VL variable regions. They are used as starting material for the assembly of medium sized combinatorial libraries or so called multicombinatorial libraries. In nonimmunized individuals immunoglobulin messenger RNAs are poorly expressed, which can be a serious limitation for cloning efficiency. To overcome this problem two complementary strategies have been used: a nonspecific polyclonal activation of B cells, and a secondary PCR amplification technique to ensure recovery of Ig messengers in large amount and without introducing any bias.

Antibodies↗

[An archivist in a laboratory].

The article presents the results of French archival research concerning scholarly and scientific archives. The article points out that the subject-matter is of interest to historians of science and learning as well as archivists employed in research institutions. It is stressed that the concept of "scholarly/scientific archives" refers to three kinds of archives: the archives of institutions responsible for research administration, of those conducting research, as well as the archives of scholars and scientists themselves. The article presents material on the archives of the Academie des Sciences as well as other research institutions, such as the Museum d'histoire naturelle, the Conservatoire des Arts et Metiers, the Ecole Polytechnique, the Institut Pasteur and the Observatoire astronomique. Special attention is devoted to the establishment, gathering and arrangement of the archival materials of those institutions. The next part of the article deals with the issue of the archives of Polish scholars to be found in French archival literature. It identifies the places where such materials are stored and discusses the archival materials relating to Polish researchers and scholars that are stored at the library of the Institut de France, the Bibliotheque nationale, the central library of the Museum d'histoire naturelle as well as other research institutions. The next part of the article is devoted to problems of evaluating materials created in the course of currently conducted research. It is pointed out that archival material produced by the activities of research institutions consist of (i) administrative documents and (ii) documents concerned with course of research work itself. It is stressed in the article that unpublished research materials and working materials are ducuments of a very controversial kind, and do not lend themselves easily to precise and rational criteria of assessment. The article also points out that it is difficult to work out a general framework of criteria for the assessment of scholarly and scientific documents. In conclusion, it is stressed that the work on scholarly and scientific archives that has been produced in a joint effort by French history of science and learning and by French archival science, testifies to the wealth and diversity of French research activity, both as regards the work of individual scholars and scientists, as well as French research institutions. This work serves to underlie the role and achievements of science and learning in the creation of cultural heritage.

Academies and Institutes↗