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REGISTRIES AND CARE OF NMD. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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2
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Autoantibodies to C-terminal apolipoprotein a-1 as independent predictors of graft failure in renal transplant recipients. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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3
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Differential cell surface protein expression in response to PARP inhibition in mutant isogenic ovarian and breast cancer cells using a novel proteomic technique. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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4
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Carnosinase concentration and activity in CNDP1 (CTG)5 homozygous T2DM patients with and without nephropathy. DIABETOL STOFFWECHS 2015. [DOI: 10.1055/s-0035-1549666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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5
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High sensitive c-reactive protein and serum amyloid a are inversely related to serum bilirubin: effect-modification by metabolic syndrome. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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6
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RENAL DEVELOPMENT AND CYSTIC DISEASES. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Critical weight loss is a major prognostic indicator for disease-specific survival in patients with head and neck cancer receiving radiotherapy. Br J Cancer 2013; 109:1093-9. [PMID: 23928661 PMCID: PMC3778304 DOI: 10.1038/bjc.2013.458] [Citation(s) in RCA: 194] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 07/14/2013] [Accepted: 07/21/2013] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Pre-treatment weight loss (WL) is a prognostic indicator for overall survival (OS) in head and neck cancer (HNC) patients. This study investigates the association between WL before or during radiotherapy and disease-specific survival (DSS) in HNC patients. METHODS In 1340 newly diagnosed HNC patients, weight change was collected before and during (adjuvant) radiotherapy with curative intent. Critical WL during radiotherapy was defined as >5% WL during radiotherapy or >7.5% WL until week 12. Differences in 5-year OS and DSS between WL groups were analysed by Cox's regression with adjustments for important socio-demographic and tumour-related confounders. RESULTS Before radiotherapy, 70% of patients had no WL, 16% had ≤5% WL, 9% had >5-10% WL, and 5% had >10% WL. Five-year OS and DSS rates for these groups were 71%, 59%, 47%, and 42% (P<0.001), and 86%, 86%, 81%, and 71%, respectively (P<0.001). After adjustment for potential confounders, >10% WL before radiotherapy remained significantly associated with a worse OS (HR 1.7; 95% CI 1.2-2.5; P=0.002) and DSS (HR 2.1; 95% CI 1.2-3.5; P=0.007).The 5-year OS and DSS rates for patients with critical WL during radiotherapy were 62% and 82%, compared with 70% and 89% for patients without critical WL (P=0.01; P=0.001). After adjustment, critical WL during radiotherapy remained significantly associated with a worse DSS (HR 1.7; 95% CI 1.2-2.4; P=0.004). CONCLUSION Weight loss both before and during radiotherapy are important prognostic indicators for 5-year DSS in HNC patients. Randomised studies into the prognostic effect of nutritional intervention are needed.
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Transplantation - clinical I. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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The involvement of GSK3beta in bipolar disorder: integrating evidence from multiple types of genetic studies. Eur Neuropsychopharmacol 2010; 20:357-68. [PMID: 20226637 DOI: 10.1016/j.euroneuro.2010.02.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2009] [Revised: 01/17/2010] [Accepted: 02/13/2010] [Indexed: 11/27/2022]
Abstract
We aimed to get a comprehensive insight into the genetic evidence supporting the role of GSK3beta in bipolar disorder (BD). Using broad searches in NCBI's PubMed and the Genetic Association Database we looked for association, whole-genome linkage, genome-wide association, gene expression, pharmocogenomic, epigenetic, cytogenetic, and mouse model studies performed for BD until July 2009. Per gene, we rated the degree of converging evidence across these types of genetic studies. The genes most consistently associated with BD in the genetic studies we reviewed were GSK3beta , GRK3, 5-HTTLPR, GRIN3, COMT, and GLUR3. GSK3beta stood out as it was implicated in at least five types of genetic studies. Although our results are limited by design differences of included studies and possibly by publication bias, GSK3beta is a plausible candidate gene for BD from a pharmacological and a genetic perspective. Future studies investigating the effects of GSK3beta manipulation in BD seem warranted.
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Biomechanics of cranial dynamics during daily living activities. CONFERENCE PROCEEDINGS : ... ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL CONFERENCE 2007; 2004:2417-9. [PMID: 17270759 DOI: 10.1109/iembs.2004.1403699] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Motion tracking capabilities of a head-mounted accelerometer apparatus were investigated in conjunction with three-dimensional motion analysis techniques during activities of daily living. In this report, measures between systems are compared for jogging, toe-touching, and start-from-rest tasks. Good fidelity was found for most measures between systems; some phase shifts and amplitude discrepancies were observed, and attributed to transducer orientation and system asynchrony. This preliminary work demonstrates the potential benefits of hybrid motion analysis systems.
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1.283 Clinical and genetic study of a large Dutch family with autosomal dominant restless legs syndrome. Parkinsonism Relat Disord 2007. [DOI: 10.1016/s1353-8020(08)70518-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Global distribution of TEM-1 and ROB-1 beta-lactamases in Haemophilus influenzae. J Antimicrob Chemother 2005; 56:773-6. [PMID: 16096320 DOI: 10.1093/jac/dki281] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES To determine the global distribution of TEM-1 and ROB-1 beta-lactamases in Haemophilus influenzae isolated from patients with community-acquired respiratory tract infection during the first 4 years of the PROTEKT study (1999-2003). To investigate the activities of commonly used antibiotics against these isolates. METHODS For 14 870 H. influenzae, MIC testing was performed using NCCLS broth microdilution methodology. For 2225 beta-lactamase-positive (BLP) H. influenzae, TEM-1 and ROB-1 genes were detected using a Taqman PCR method. RESULTS beta-Lactamase positivity was 15.0% overall but varied greatly by country (<5% in several countries to 67.9% in Taiwan). Prevalences of TEM-1 and ROB-1 BLP H. influenzae were 93.7% and 4.6%, respectively, however almost all ROB-1 isolates were found in Canada, the USA and Mexico. ROB-1 isolates (n = 102) were less susceptible against cefaclor (29.4% versus 87.6%) and cefprozil (42.2% versus 91.9%) than TEM-1 (n = 2085) isolates. Differences in susceptibility rates for chloramphenicol, co-trimoxazole and tetracycline were also found between the two groups. CONCLUSIONS The ROB-1 beta-lactamase was found almost exclusively in North America and was more active against cefaclor and cefprozil than the TEM-1 beta-lactamase.
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Abstract
Syndromes of disordered 'chromatin remodeling' are unique in medicine because they arise from a general deregulation of DNA transcription caused by mutations in genes encoding enzymes which mediate changes in chromatin structure. Chromatin is the packaged form of DNA in the eukaryotic cell. It consists almost entirely of repeating units, called nucleosomes, in which short segments of DNA are wrapped tightly around a disk-like structure comprising two subunits of each of the histone proteins H2A, H2B, H3 and H4. Histone proteins are covalently modified by a number of different adducts (i.e. acetylation and phosphorylation) that regulate the tightness of the DNA-histone interactions. Mutations in genes encoding enzymes that mediate chromatin structure can result in a loss of proper regulation of chromatin structure, which in turn can result in deregulation of gene transcription and inappropriate protein expression. In this review we present examples of representative genetic diseases that arise as a consequence of disordered chromatin remodeling. These include: alpha-thalassemia/mental retardation syndrome, X-linked (ATR-X); Rett syndrome (RS); immunodeficiency-centromeric instability-facial anomalies syndrome (ICF); Rubinstein-Taybi syndrome (RSTS); and Coffin-Lowry syndrome (CLS).
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Macrolide resistance by ribosomal mutation in clinical isolates of Streptococcus pneumoniae from the PROTEKT 1999-2000 study. Antimicrob Agents Chemother 2003; 47:1777-83. [PMID: 12760848 PMCID: PMC155854 DOI: 10.1128/aac.47.6.1777-1783.2003] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Sixteen (1.5%) of the 1,043 clinical macrolide-resistant Streptococcus pneumoniae isolates collected and analyzed in the 1999-2000 PROTEKT (Prospective Resistant Organism Tracking and Epidemiology for the Ketolide Telithromycin) study have resistance mechanisms other than rRNA methylation or efflux. We have determined the macrolide resistance mechanisms in all 16 isolates by sequencing the L4 and L22 riboprotein genes, plus relevant segments of the four genes for 23S rRNA, and the expression of mutant rRNAs was analyzed by primer extension. Isolates from Canada (n = 4), Japan (n = 3), and Australia (n = 1) were found to have an A2059G mutation in all four 23S rRNA alleles. The Japanese isolates additionally had a G95D mutation in riboprotein L22; all of these originated from the same collection center and were clonal. Three of the Canadian isolates were also clonal; the rest were not genetically related. Four German isolates had A2059G in one, two, and three 23S rRNA alleles and A2058G in two 23S rRNA alleles, respectively. An isolate from the United States had C2611G in three 23S rRNA alleles, one isolate from Poland had A2058G in three 23S rRNA alleles, one isolate from Turkey had A2058G in four 23S rRNA alleles, and one isolate from Canada had A2059G in two 23S rRNA alleles. Erythromycin and clindamycin resistance gradually increased with the number of A2059G alleles, whereas going from one to two mutant alleles caused sharp rises in the azithromycin, roxithromycin, and rokitamycin MICs. Comparisons of mutation dosage with rRNA expression indicates that not all alleles are equally expressed. Despite their high levels of macrolide resistance, all 16 isolates remained susceptible to the ketolide telithromycin (MICs, 0.015 to 0.25 microg/ml).
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MESH Headings
- Anti-Bacterial Agents/pharmacology
- DNA, Bacterial/chemistry
- DNA, Bacterial/genetics
- Drug Resistance, Bacterial
- Electrophoresis, Gel, Pulsed-Field
- Humans
- Macrolides
- Pneumococcal Infections/microbiology
- Point Mutation/genetics
- Polymerase Chain Reaction
- RNA, Bacterial/chemistry
- RNA, Bacterial/genetics
- RNA, Ribosomal, 23S/chemistry
- RNA, Ribosomal, 23S/genetics
- RNA-Binding Proteins/chemistry
- RNA-Binding Proteins/genetics
- Ribosomal Proteins/chemistry
- Ribosomal Proteins/genetics
- Sequence Analysis, DNA
- Streptococcus pneumoniae/drug effects
- Streptococcus pneumoniae/genetics
- Streptococcus pneumoniae/metabolism
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[Information provision for the biomedical sciences in the Netherlands faces an uncertain future]. NEDERLANDS TIJDSCHRIFT VOOR GENEESKUNDE 2003; 147:181-2. [PMID: 12635552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
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[Information provision for the biomedical sciences in the Netherlands faces an uncertain future]. NEDERLANDS TIJDSCHRIFT VOOR GENEESKUNDE 2003; 147:182. [PMID: 12635553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
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Molecular characterization of macrolide resistance mechanisms among Streptococcus pneumoniae and Streptococcus pyogenes isolated from the PROTEKT 1999-2000 study. J Antimicrob Chemother 2002; 50 Suppl S1:39-47. [PMID: 12239227 DOI: 10.1093/jac/dkf806] [Citation(s) in RCA: 110] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In this study, the distribution of macrolide resistance mechanisms was determined for isolates of Streptococcus pneumoniae and Streptococcus pyogenes obtained from the PROTEKT 1999-2000 study (a global, longitudinal study of the antibacterial susceptibility of bacterial pathogens associated with community-acquired lower respiratory tract infections). The global macrolide resistance mechanism distribution results for 1043 macrolide-resistant S. pneumoniae isolates collected from 25 countries were as follows: 35.3% mef(A), 56.2% erm(B), 6.8% both mef(A) and erm(B), 0.2% erm(A) subclass erm(TR) and 1.5% negative for mechanisms tested. Mechanisms of macrolide resistance were found to vary widely between countries and different geographical regions with mef(A) predominating in North America and erm(B) in Europe. Approximation of genotype from macrolide MIC without molecular determination of the mechanism of resistance resulted in an error of 10.2% (106 isolates). Overall, for 143 macrolide-resistant S. pyogenes isolates, 46.1% of the isolates tested were mef(A), 30.8% were erm(B), 23.1% were erm(A) subclass erm(TR) and no isolates were negative for all the genetic markers tested. Again, the distribution varied widely between countries and geographical regions. This study provides valuable baseline data for the continued monitoring of the evolution of macrolide resistance development in these important respiratory tract pathogens. The ketolide telithromycin retained excellent anti-pneumococcal activity irrespective of macrolide resistance mechanism, having a MIC(90) of 0.25, 0.5 and 0.5 mg/L against mef(A), erm(B) and mef(A)+erm(B) macrolide-resistant S. pneumoniae, respectively. It also exhibited potent activity against S. pyogenes that had become resistant to macrolides via either mef(A), (MIC(90 )0.5 mg/L) or erm(TR), (MIC(90) 0.03 mg/L).
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Serial passage of Chlamydia spp. in sub-inhibitory fluoroquinolone concentrations. J Antimicrob Chemother 2002; 49:757-61. [PMID: 12003968 DOI: 10.1093/jac/dkf031] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We investigated the in vitro development of fluoroquinolone resistance in Chlamydia trachomatis and Chlamydia (Chlamydophila) pneumoniae grown in McCoy cell monolayers in supplemented Eagle's minimum essential medium. With C. trachomatis, initial passages at sub-inhibitory fluoroquinolone concentrations did not affect fluoroquinolone susceptibility. However, after an initial lag of 10-24 passages (depending upon the fluoroquinolone used), fluoroquinolone resistance developed rapidly. The final fluoroquinolone MIC after a total of 30 passages was >256 times the MIC of the original wild-type strain with ofloxacin or ciprofloxacin passage. Analysis of the quinolone-resistance determining regions of two quinolone-resistant C. trachomatis mutants obtained after 30 passages showed that both isolates had a single serine to isoleucine substitution at amino acid position 83 in GyrA. In stark contrast, with C. pneumoniae no reduced fluoroquinolone susceptibility could be sustained, even after 30 passages with moxifloxacin or ofloxacin. With sparfloxacin passage, some indication of resistance was observed but no viable organisms could be isolated for further investigation. It is possible that fluoroquinolone-resistant C. pneumoniae are less able to survive than wild type, which may explain why resistance does not develop readily.
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Detection of macrolide resistance mechanisms in Streptococcus pneumoniae and Streptococcus pyogenes using a multiplex rapid cycle PCR with microwell-format probe hybridization. J Antimicrob Chemother 2001; 48:541-4. [PMID: 11581234 DOI: 10.1093/jac/48.4.541] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In this study, a multiplex rapid cycle PCR with microwell-format probe hybridization method was developed to perform high-volume screening for macrolide resistance determinants in isolates of Streptococcus pneumoniae and Streptococcus pyogenes. The method was then utilized to determine the distribution of macrolide resistance mechanisms in recent isolates of S. pneumoniae and S. pyogenes from Great Britain and Ireland. For 83 strains of macrolide resistant S. pneumoniae tested, 51 (61.4%) were positive for mef(A), 29 (34.9%) erm(B), two (2.4%) double mechanisms mef(A) + erm(B), and one (1.2%) negative for all mechanisms tested. For 56 strains of macrolide-resistant S. pyogenes tested, 33 (58.9%) were positive for erm(A) subclass erm(TR), 18 (32.1%) mef(A) and five (8.9%) erm(B).
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[Automation of medical literature--and information services]. NEDERLANDS TIJDSCHRIFT VOOR GENEESKUNDE 1997; 141:33-8. [PMID: 9162847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
It is important for clinical practice to be able to find (or retrieve) relevant literature and to keep informed of the state of medical science. The fact that the contents of articles in journals are now accessible via computers is the result of integration of bibliographic techniques, medical knowledge and computer technology. Articles published in some 5000 medical journals can nowadays be retrieved electronically via Medline and Embase together (but medical literature in Dutch is underrepresented). Computerised insertion of publications into Internet dose not make information traceable or accessible, let alone reliable and readable. It cannot be predicted if electronic versions of scientific periodicals will replace the printed editions completely. However, valuable, reliable information will always have its price, even on Internet. It is unlikely that electronic information published privately (internet) will replace scientific publishers soon, for readers will still want selection and monitoring of contents and language. Good layout, professional typography and suitable illustrations to enhance reading comfort and cognitive processes, will even become more important. The problems arising from the immensity of scientific knowledge are not (any longer) of a technological nature-what is needed is a cultural about-turn of the information infrastructure in medical-scientific associations, organizations and institutions.
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Abstract
This prospective study aimed to investigate the impact of both (the speediness of) a subsequent pregnancy and the birth of a viable child on grief arising from a previous pregnancy loss. Data were collected from a series of written questionnaires. Of the 2140 pregnant women who participated in the study, 227 lost a baby by miscarriage (85%) or perinatal death (15%). In 221 women, the loss concerned a singleton. At each of four post-loss assessments, these women completed the Perinatal Grief Scale. They also indicated whether they had conceived again and, if they had, related how they felt about that. Data were analyzed by means of hierarchical multiple regression. Both conceiving again and the birth of a living child lessened grief. A speedy new pregnancy was only rarely found to be detrimental. It is suggested that parents, at least following miscarriage, no longer be advised to wait a specific time before conceiving again. Preferably their individual situation should be discussed with them in order to help them make their own informed decision concerning the subsequent pregnancy.
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Quantum oscillation of the cyclotron mass in two-dimensional electron systems in silicon. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:1514-1517. [PMID: 9985986 DOI: 10.1103/physrevb.54.1514] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Subdural empyema caused by Escherichia coli: hematogenous dissemination to a preexisting chronic subdural hematoma. Clin Infect Dis 1995; 21:458-9. [PMID: 8562774 DOI: 10.1093/clinids/21.2.458] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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25
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Lateral n-i-p-i superlattices in Si metal-oxide-semiconductor structures. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:5028-5032. [PMID: 9979375 DOI: 10.1103/physrevb.51.5028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Subject strengths and weaknesses of four current-awareness services on diskette. HEALTH LIBRARIES REVIEW 1992; 9:131-7. [PMID: 10139105 DOI: 10.1046/j.1365-2532.1992.940131.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This paper reports on a comparison of four current-awareness services on floppy disk: CURRENT CONTENTS ON DISKETTE--LIFE SCIENCES, CURRENT CONTENTS ON DISKETTE--CLINICAL MEDICINE, MEDICAL SCIENCE WEEKLY and REFERENCE UPDATE. The four differ considerably not so much in the number of journals as in the subject emphasis of journal titles covered. Like most bibliographic databases the area of particular interest to the individual or organization will dictate which of these services is the best choice. For many subspecialties the differences are too big to ignore; subject strengths and weaknesses are discussed in this article since many (end)users will depend on the advice of medical librarians.
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Carbon dioxide flux across a forest-field ecotone. ENVIRONMENTAL MONITORING AND ASSESSMENT 1992; 22:117-122. [PMID: 24226902 DOI: 10.1007/bf00418010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
CO2 flux of a deciduous forest and an old-field surface, and the ecotone between these two typical southern U.S. ecological communities, was studied in July, 1989. Rates of CO2 flux were greatest in the old field and least in the forest plots. The ecotone showed the greatest variation in CO2 flux. These differences appear to be due to differences in soil surface temperature, the old field being more exposed to direct solar radiation. The ecotonal community represents a landscape property which should be considered in studies of the transfer of carbon across the soil-atmosphere boundary.
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[Manual or tour operator: who guides the clinician in literature searches?]. NEDERLANDS TIJDSCHRIFT VOOR GENEESKUNDE 1992; 136:797-800. [PMID: 1574152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Software for information storage and retrieval tested, evaluated and compared Part III — End‐user software. ELECTRONIC LIBRARY 1992. [DOI: 10.1108/eb045107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Temperature and interface-roughness dependence of the electron mobility in high-mobility Si(100) inversion layers below 4.2 K. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:6642-6649. [PMID: 9998107 DOI: 10.1103/physrevb.43.6642] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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A comparison of the coverage of clinical medicine provided by BIOSIS Previews and Medline. ACTA ACUST UNITED AC 1990. [DOI: 10.1108/eb024354] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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The number of monocytes in mice as a reflection of their condition and capacity to react to an inflammatory stimulus. JOURNAL OF THE RETICULOENDOTHELIAL SOCIETY 1978; 24:197-204. [PMID: 153401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Localization of glycerol-3-phosphate oxidase in the mitochondrion and particulate NAD+-linked glycerol-3-phosphate dehydrogenase in the microbodies of the bloodstream form to Trypanosoma brucei. EUROPEAN JOURNAL OF BIOCHEMISTRY 1977; 76:29-39. [PMID: 142010 DOI: 10.1111/j.1432-1033.1977.tb11567.x] [Citation(s) in RCA: 115] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Abstract
Human lymphocytes obtained from tonsils and peripheral blood were found to bind human fluid phase C3b, obtained by trypsin treatment. This binding was detected by indirect immunofluorescence (IIF) using specific anti-C3 antisera. Lymphocytes isolated from thymus tissue scored low percentages in IIF, indicating that the main population of thymus-derived lymphocytes are T cells. The distribution pattern of C3b-binding cells was compared with that of cells forming rosettes with sheep erythrocytes coated with antibody and complement (EAC) and with sheep erythrocytes (E) only, as well as with that of Ig-bearing lymphocytes, as detected by direct immunofluorescence. It appeared that the distribution pattern of lymphocytes which can bind fluid phase C3b is similar to that of EAC rosette-forming and of Ig-bearing lymphocytes. Pre-incubation of the lymphocytes with C3b and pretreatment of the cells with trypsin decreased the capacity to form rosettes and to bind C3b to their surface. Human monocytes granulocytes and erythrocytes did not bind fluid phase C3b, as judged by IIF. Therefore, the selective binding of fluid phase C3b to lymphocytes provides a specific method for the detection of complement-reactive lymphocytes in lymphoid cell preparations.
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