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1.
Tech Coloproctol ; 28(1): 58, 2024 May 25.
Article in English | MEDLINE | ID: mdl-38796600

ABSTRACT

BACKGROUND: The implementation of Enhanced Recovery After Surgery (ERAS) protocols has resulted in improved postoperative outcomes in colorectal cancer surgery. The evidence regarding feasibility and impact on outcomes in surgery for inflammatory bowel disease (IBD) is limited. METHODS: We performed a retrospective observational cohort study, comparing patient trajectories before and after implementing an IBD-specific ERAS protocol at Zealand University Hospital. We assessed the occurrence of serious postoperative complications of Clavien-Dindo grade 3 or higher as our primary outcome, with postoperative length of stay in days and rate of readmissions as secondary outcomes, using χ2, Mann-Whitney test, and odds ratios adjusted for sex and age. RESULTS: From 2017 to 2023, 394 patients were operated on for IBD and included in our study. In the ERAS cohort, 39/250 patients experienced a postoperative complication of Clavien-Dindo grade 3 or higher compared to 27/144 patients in the non-ERAS cohort (15.6% vs. 18.8%, p = 0.420) with an adjusted odds ratio of 0.73 (95% CI 0.42-1.28). There was a significantly shorter postoperative length of stay (median 4 vs. 6 days, p < 0.001) in the ERAS cohort compared to the non-ERAS cohort. Readmission rates remained similar (22.4% vs. 16.0%, p = 0.125). CONCLUSIONS: ERAS in IBD surgery was associated with faster patient recovery, but without an impact on the occurrence of serious postoperative complications and rate of readmissions.


Subject(s)
Enhanced Recovery After Surgery , Inflammatory Bowel Diseases , Length of Stay , Patient Readmission , Postoperative Complications , Humans , Female , Male , Middle Aged , Retrospective Studies , Length of Stay/statistics & numerical data , Inflammatory Bowel Diseases/surgery , Postoperative Complications/etiology , Postoperative Complications/epidemiology , Patient Readmission/statistics & numerical data , Adult , Aged , Clinical Protocols , Treatment Outcome , Feasibility Studies
2.
Chemosphere ; 310: 136731, 2023 Jan.
Article in English | MEDLINE | ID: mdl-36209855

ABSTRACT

Multiple stage anaerobic system was found to be an effective strategy for reductive decolorization of azo dyes in the presence of sulfate. Bulk color removal (56-90%) was achieved concomitant with acidogenic activity in the 1st-stage reactor (R1), while organic matter removal (≤100%) and sulfate reduction (≤100%) occurred predominantly in the 2nd-stage reactor (R2). However, azo dye reduction mechanism and metabolic routes involved remain unclear. The involved microbial communities and conditions affecting the azo dye removal in a two-stage anaerobic digestion (AD) system were elucidated using amplicon sequencing (16S rRNA, fhs, dsrB and mcrA) and correlation analysis. Reductive decolorization was found to be co-metabolic and mainly associated with hydrogen-producing pathways. We also found evidence of the involvement of an azoreductase from Lactococcus lactis. Bacterial community in R1 was sensitive and shifted in the presence of the azo dye, while microorganisms in R2 were more protected. Higher diversity of syntrophic-acetate oxidizers, sulfate reducers and methanogens in R2 highlights the role of the 2nd-stage in organic matter and sulfate removals, and these communities might be involved in further transformations of the azo dye reduction products. The results improve our understanding on the role of different microbial communities in anaerobic treatment of azo dyes and can help in the design of better solutions for the treatment of textile effluents.


Subject(s)
Azo Compounds , Microbiota , Azo Compounds/metabolism , Bioreactors/microbiology , RNA, Ribosomal, 16S/genetics , RNA, Ribosomal, 16S/metabolism , Coloring Agents/metabolism , Sulfates , Metabolic Networks and Pathways
3.
Ecol Appl ; 29(8): e01987, 2019 12.
Article in English | MEDLINE | ID: mdl-31359463

ABSTRACT

Mitigation of climate change depends on accurate estimation and mapping of terrestrial carbon stocks, particularly in carbon dense tropical forests. Allometric equations can be used to robustly estimate biomass of tropical trees, but often require tree height, which is frequently unknown. Researchers and practitioners must, therefore, decide whether to directly measure a subset of tree heights to develop diameter : height (D:H) equations or rely on previously published generic equations. To date, studies comparing the two approaches have been spatially restricted and/or not randomly allocated across the landscape of interest, making the implications of deciding whether or not to measure tree heights difficult to determine. To address this issue, we use inventory data from a systematic-random forest inventory across Gabon (102 forest sites; 42,627 trees, including 7,036 height-measured trees). Using plot-specific models of D:H as a benchmark, we compare the performance of a suite of locally fitted and commonly used generic models (parameterized national, georegional, and pantropical equations) across a variety of scales, and assess which abiotic, anthropogenic, and topographical covariates contribute the most to bias in height estimation. We reveal marked spatial structure in the magnitude and direction of bias in tree height estimation using all generic models, due at least in part to soil type, which compounded to substantial error in site-level AGB estimates (of up to 38% or 150 Mg/ha). However, two generic pantropical models (Chave 2014; Feldpausch 2012) converged to within 2.5% of mean AGB at the landscape scale. Our results suggest that some (not all) pantropical equations can extrapolate AGB across large spatial scales with minimal bias in estimated mean AGB. However, extreme caution must be taken when interpreting the AGB estimates from generic models at the site-level as they fail to capture substantial spatial variation in D:H relationships, which could lead to dramatic under- or over-estimation of site-level carbon stocks. Validated allometric models derived at site- or soil-type-levels may be the best way to reduce such biases arising from landscape-level heterogeneity in D:H model fit in the Afrotropics.


Subject(s)
Carbon , Tropical Climate , Bias , Biomass , Soil , Trees
4.
Mol Psychiatry ; 23(1): 6-14, 2018 01.
Article in English | MEDLINE | ID: mdl-28924187

ABSTRACT

The Integrative Psychiatric Research (iPSYCH) consortium has established a large Danish population-based Case-Cohort sample (iPSYCH2012) aimed at unravelling the genetic and environmental architecture of severe mental disorders. The iPSYCH2012 sample is nested within the entire Danish population born between 1981 and 2005, including 1 472 762 persons. This paper introduces the iPSYCH2012 sample and outlines key future research directions. Cases were identified as persons with schizophrenia (N=3540), autism (N=16 146), attention-deficit/hyperactivity disorder (N=18 726) and affective disorder (N=26 380), of which 1928 had bipolar affective disorder. Controls were randomly sampled individuals (N=30 000). Within the sample of 86 189 individuals, a total of 57 377 individuals had at least one major mental disorder. DNA was extracted from the neonatal dried blood spot samples obtained from the Danish Neonatal Screening Biobank and genotyped using the Illumina PsychChip. Genotyping was successful for 90% of the sample. The assessments of exome sequencing, methylation profiling, metabolome profiling, vitamin-D, inflammatory and neurotrophic factors are in progress. For each individual, the iPSYCH2012 sample also includes longitudinal information on health, prescribed medicine, social and socioeconomic information, and analogous information among relatives. To the best of our knowledge, the iPSYCH2012 sample is the largest and most comprehensive data source for the combined study of genetic and environmental aetiologies of severe mental disorders.


Subject(s)
Environment , Genetic Predisposition to Disease/genetics , Mental Disorders/epidemiology , Mental Disorders/genetics , Adolescent , Adult , Age Factors , Child , Cohort Studies , Denmark , Female , Genotype , Humans , Male , Mental Disorders/classification , Mental Disorders/diagnosis , Psychiatric Status Rating Scales , Severity of Illness Index , Young Adult
5.
Nat Commun ; 8(1): 1064, 2017 10 20.
Article in English | MEDLINE | ID: mdl-29057953

ABSTRACT

Lytic polysaccharide monooxygenases (LPMOs) are industrially important copper-dependent enzymes that oxidatively cleave polysaccharides. Here we present a functional and structural characterization of two closely related AA9-family LPMOs from Lentinus similis (LsAA9A) and Collariella virescens (CvAA9A). LsAA9A and CvAA9A cleave a range of polysaccharides, including cellulose, xyloglucan, mixed-linkage glucan and glucomannan. LsAA9A additionally cleaves isolated xylan substrates. The structures of CvAA9A and of LsAA9A bound to cellulosic and non-cellulosic oligosaccharides provide insight into the molecular determinants of their specificity. Spectroscopic measurements reveal differences in copper co-ordination upon the binding of xylan and glucans. LsAA9A activity is less sensitive to the reducing agent potential when cleaving xylan, suggesting that distinct catalytic mechanisms exist for xylan and glucan cleavage. Overall, these data show that AA9 LPMOs can display different apparent substrate specificities dependent upon both productive protein-carbohydrate interactions across a binding surface and also electronic considerations at the copper active site.


Subject(s)
Mixed Function Oxygenases/chemistry , Mixed Function Oxygenases/metabolism , Polysaccharides/metabolism , Catalytic Domain , Copper/chemistry , Electron Spin Resonance Spectroscopy , Fungal Proteins/chemistry , Fungal Proteins/metabolism , Models, Molecular , Polyporaceae/enzymology , Polysaccharides/chemistry , Sordariales/enzymology , Substrate Specificity
6.
Colorectal Dis ; 19(9): O350-O357, 2017 Sep.
Article in English | MEDLINE | ID: mdl-28688203

ABSTRACT

AIM: We aimed to determine colorectal length with the 3D-Transit system by describing a 'centreline' of capsule movement and comparing it with known anatomy, as determined by magnetic resonance imaging (MRI). Further, we aimed to test the day-to-day variation of colorectal length assessed with the system. METHOD: The 3D-Transit system consists of electromagnetic capsules that can be tracked as they traverse the gastrointestinal tract. Twenty-five healthy subjects were examined with both 3D-Transit and MRI. Another 21 healthy subjects were examined with 3D-Transit on two consecutive days. RESULTS: Computation of colorectal length from capsule passage was possible for 60 of the 67 3D-Transit recordings. The length of the colorectum measured with MRI and 3D-Transit was 95 (75-153) cm and 99 (77-147) cm, respectively (P = 0.15). The coefficient of variation (CV) between MRI and 3D-Transit was 7.8%. Apart from the caecum/ascending colon being 26% (P = 0.002) shorter on MRI, there were no other differences in total or segmental colorectal lengths between methods (all P > 0.05). The length of the colorectum measured with 3D-Transit on two consecutive days was 102 (73-119) cm and 103 (75-123) cm (P = 0.67). The CV between days was 7.3%. CONCLUSION: The 3D-Transit system allows accurate and reliable determination of colorectal length compared with MRI-derived colorectal length and between days. Antegrade or retrograde capsule movement relative to this centreline, as well as the length and speed of movements, may be determined by future studies to allow better classification and treatment in patients with dysmotility.


Subject(s)
Capsule Endoscopy , Colon/anatomy & histology , Diagnostic Techniques, Digestive System/instrumentation , Magnetic Resonance Imaging/methods , Magnets , Adult , Colon/diagnostic imaging , Colon/physiology , Female , Gastrointestinal Transit , Healthy Volunteers , Humans , Male , Middle Aged , Organ Size , Reproducibility of Results
7.
Article in English | MEDLINE | ID: mdl-28086261

ABSTRACT

BACKGROUND: Gastrointestinal symptoms are common in the general population and may originate from disturbances in gut motility. However, fundamental mechanistic understanding of motility remains inadequate, especially of the less accessible regions of the small bowel and colon. Hence, refinement and validation of objective methods to evaluate motility of the whole gut is important. Such techniques may be applied in clinical settings as diagnostic tools, in research to elucidate underlying mechanisms of diseases, and to evaluate how the gut responds to various drugs. A wide array of such methods exists; however, a limited number are used universally due to drawbacks like radiation exposure, lack of standardization, and difficulties interpreting data. In recent years, several new methods such as the 3D-Transit system and magnetic resonance imaging assessments on small bowel and colonic motility have emerged, with the advantages that they are less invasive, use no radiation, and provide much more detailed information. PURPOSE: This review outlines well-established and emerging methods to evaluate small bowel and colonic motility in clinical settings and in research. The latter include the 3D-Transit system, magnetic resonance imaging assessments, and high-resolution manometry. Procedures, indications, and the relative strengths and weaknesses of each method are summarized.


Subject(s)
Gastrointestinal Motility/physiology , Intestine, Large/diagnostic imaging , Intestine, Large/physiology , Intestine, Small/diagnostic imaging , Intestine, Small/physiology , Manometry/methods , Breath Tests/methods , Gastrointestinal Diseases/diagnostic imaging , Gastrointestinal Diseases/physiopathology , Gastrointestinal Transit/physiology , Humans , Magnetic Resonance Imaging/methods , Radionuclide Imaging/methods
8.
Animal ; 11(6): 975-983, 2017 Jun.
Article in English | MEDLINE | ID: mdl-27903321

ABSTRACT

Sow lactation diets often include fat sources without considering the impact on digestion, metabolism and performance. Fiber ingredients may reduce feed intake and are often completely excluded from lactation diets, although locally available ingredients may be cost-efficient alternatives to partly replace cereals in lactation diets. Thus, a standard lactation diet low in dietary fiber, and two high-fiber diets based on sugar beet pulp (SBP) or alfalfa meal (ALF) were formulated. The SBP diet was high in soluble non-starch polysaccharides (NSP), whereas ALF being high in insoluble NSP. Each diet was divided in three portions and combined with 3% soybean oil (SOYO), palm fatty acid distillate (PFAD), or glycerol trioctanoate (C8TG) as the dietary fat source. Equal amounts of metabolizable energy were fed to 36 second parity sows from day 105 of gestation and throughout lactation to study the impact on feed intake, plasma metabolites, milk production and litter performance. Backfat thickness and BW of sows were recorded on days 3, 17 and 28 of lactation; blood was sampled on days 3 and 17; milk samples were obtained on days 3, 10, 17 and 24 of lactation; and piglets were weighed on days 2, 7, 14, 21 and 28 of lactation. Litter gain and milk yield during late lactation were greater in sows fed C8TG or SOYO than in sows fed PFAD (P=0.05), whereas loss of BW (P=0.60) and backfat (P=0.70) was unaffected by fat source. Milk protein on days 3 and 10 of lactation were lower in C8TG and SOYO sows, than in PFAD sows (P<0.05). The lowest concentration of plasma lactate on day 3 (P<0.05) and plasma acetate on day 17 (P<0.05) was observed in C8TG sows. Milk yield was unaffected by fiber treatment (P=0.43), whereas milk protein concentration was lowest in ALF sows (P<0.05). Feed intake tended to be lower (P=0.09), and litter gain during the 3rd week of lactation was decreased (P<0.05) in SBP sows. In conclusion, performance was enhanced in SOYO and C8TG compared with PFAD sows, possibly associated with reduced energy intake in PFAD-fed sows. Furthermore, the SBP diet seemed to impair feed intake and litter gain at peak lactation, suggesting that effects of the dietary fiber fraction on energy intake determines the potential inclusion level of fiber-rich ingredients.


Subject(s)
Dietary Fats/metabolism , Dietary Fiber/metabolism , Milk/metabolism , Swine/physiology , Acetates/blood , Animal Feed , Animals , Diet/veterinary , Digestion , Eating , Energy Intake , Energy Metabolism , Female , Lactation , Lactic Acid/blood , Milk/chemistry , Milk Proteins/metabolism , Parity , Pregnancy
9.
Water Sci Technol ; 74(9): 2097-2104, 2016 Nov.
Article in English | MEDLINE | ID: mdl-27842029

ABSTRACT

Documentation of the effects of different mitigation measures adopted at different scales to reduce phosphorus (P) loadings to surface waters is needed to help catchment managers select the best management practices. Water quality monitoring data from the outlets of two paired catchments (the river Odense catchment versus a neighbouring control catchment) on the island of Funen, Denmark, showed significantly different trends in annual flow-weighted P concentrations during the period 2000-2013. A significant downward trend in flow-weighted particulate P (PP) concentrations (0.051 mg P L-1) and loss (0.155 kg P ha-1) was detected for the river Odense catchment, whereas a similar trend did not emerge in the control catchment. The observed differences in PP reductions may be due to wetlands acting as P sinks since wetland restoration activities have been much more comprehensive in the river Odense catchment (1.8 ha wetlands km-2) than in the control catchment (0.5 ha wetland km-2). The excess downward trend in total P and PP in the river Odense catchment (5,600 kg P and 3,700 kg P) is corroborated by extrapolating the results from a mass-balance study and 10 years of in situ measurements of P storage (3,700 kg P and 15,000 kg P).


Subject(s)
Environmental Monitoring/methods , Phosphorus/chemistry , Rivers/chemistry , Water Pollutants, Chemical/chemistry , Wetlands , Denmark , Water Movements
10.
Eur J Vasc Endovasc Surg ; 52(4): 487-499, 2016 Oct.
Article in English | MEDLINE | ID: mdl-27543385

ABSTRACT

OBJECTIVE: Experimental animal models have been used to investigate the formation, development, and progression of abdominal aortic aneurysms (AAAs) for decades. New models are constantly being developed to imitate the mechanisms of human AAAs and to identify treatments that are less risky than those used today. However, to the authors' knowledge, there is no model identical to the human AAA. The objective of this systematic review was to assess the different types of animal models used to investigate the development, progression, and treatment of AAA and to highlight their advantages and limitations. METHODS: A search protocol was used to perform a systematic literature search of PubMed and Embase. A total of 2,830 records were identified. After selection of the relevant articles, 564 papers on animal AAA models were included. RESULTS: The most common models in rodents, including elastase, calcium chloride, angiotensin II, xenograft, and transgenic models, and the most common models in non-rodents, including chemically induced, graft models, and patch models, all have limitations with regard to the pathological interpretation of human AAA. CONCLUSION: Although findings from animal models of AAAs cannot be directly translated to human AAAs, the identification and awareness of animal models of AAA will provide knowledge for further investigation and insight into human AAA disease.


Subject(s)
Aortic Aneurysm, Abdominal/physiopathology , Aortic Aneurysm, Abdominal/therapy , Disease Models, Animal , Animals , Aorta, Abdominal/pathology , Aorta, Abdominal/physiopathology , Aortic Aneurysm, Abdominal/pathology , Feasibility Studies , Humans , Species Specificity
11.
Water Sci Technol ; 73(11): 2583-9, 2016.
Article in English | MEDLINE | ID: mdl-27232393

ABSTRACT

Land-based total nitrogen (N) loadings to Danish coastal waters have been markedly reduced since 2000. This has been achieved by general measures reducing discharges from all point sources and N leaching from farmed land supplemented with more local and targeted mitigation measures such as restoration of wetlands to increase the catchment-specific N retention. In the catchment of River Odense, restoration of wetlands has been extensive. Thus, in the major gauged catchment (485 km(2)) eleven wetlands (860 ha) have been restored since 2000. A comparison of data on N concentrations and loss from a gauging station in the River Odense with data from a control catchment (772 km(2)), in which a significantly less intensive wetland restoration programme has been undertaken, showed an excess downward trend in N, amounting to 124 t N yr(-1), which can be ascribed to the intensive wetland restoration programme carried out in the River Odense catchment. In total, the N load in the River Odense has been reduced by 377 t N yr(-1) (39%) since 2000. The observed downward trend is supported by monitoring data from two wetlands restored in 2001 and 2004 in the River Odense catchment.


Subject(s)
Environmental Monitoring , Environmental Restoration and Remediation , Nitrogen/analysis , Rivers/chemistry , Wetlands , Denmark
12.
R Soc Open Sci ; 2(7): 150088, 2015 Jul.
Article in English | MEDLINE | ID: mdl-26587265

ABSTRACT

We developed a set of universal PCR primers (MiFish-U/E) for metabarcoding environmental DNA (eDNA) from fishes. Primers were designed using aligned whole mitochondrial genome (mitogenome) sequences from 880 species, supplemented by partial mitogenome sequences from 160 elasmobranchs (sharks and rays). The primers target a hypervariable region of the 12S rRNA gene (163-185 bp), which contains sufficient information to identify fishes to taxonomic family, genus and species except for some closely related congeners. To test versatility of the primers across a diverse range of fishes, we sampled eDNA from four tanks in the Okinawa Churaumi Aquarium with known species compositions, prepared dual-indexed libraries and performed paired-end sequencing of the region using high-throughput next-generation sequencing technologies. Out of the 180 marine fish species contained in the four tanks with reference sequences in a custom database, we detected 168 species (93.3%) distributed across 59 families and 123 genera. These fishes are not only taxonomically diverse, ranging from sharks and rays to higher teleosts, but are also greatly varied in their ecology, including both pelagic and benthic species living in shallow coastal to deep waters. We also sampled natural seawaters around coral reefs near the aquarium and detected 93 fish species using this approach. Of the 93 species, 64 were not detected in the four aquarium tanks, rendering the total number of species detected to 232 (from 70 families and 152 genera). The metabarcoding approach presented here is non-invasive, more efficient, more cost-effective and more sensitive than the traditional survey methods. It has the potential to serve as an alternative (or complementary) tool for biodiversity monitoring that revolutionizes natural resource management and ecological studies of fish communities on larger spatial and temporal scales.

13.
Neurogastroenterol Motil ; 27(12): 1755-63, 2015 Dec.
Article in English | MEDLINE | ID: mdl-26598050

ABSTRACT

BACKGROUND: Segmental distribution of colorectal volume is relevant in a number of diseases, but clinical and experimental use demands robust reliability and validity. Using a novel semi-automatic magnetic resonance imaging-based technique, the aims of this study were to describe: (i) inter-individual and intra-individual variability of segmental colorectal volumes between two observations in healthy subjects and (ii) the change in segmental colorectal volume distribution before and after defecation. METHODS: The inter-individual and intra-individual variability of four colorectal volumes (cecum/ascending colon, transverse, descending, and rectosigmoid colon) between two observations (separated by 52 ± 10) days was assessed in 25 healthy males and the effect of defecation on segmental colorectal volumes was studied in another seven healthy males. KEY RESULTS: No significant differences between the two observations were detected for any segments (All p > 0.05). Inter-individual variability varied across segments from low correlation in cecum/ascending colon (intra-class correlation coefficient [ICC] = 0.44) to moderate correlation in the descending colon (ICC = 0.61) and high correlation in the transverse (ICC = 0.78), rectosigmoid (ICC = 0.82), and total volume (ICC = 0.85). Overall intra-individual variability was low (coefficient of variance = 9%). After defecation the volume of the rectosigmoid decreased by 44% (p = 0.003). The change in rectosigmoid volume was associated with the true fecal volume (p = 0.02). CONCLUSIONS & INFERENCES: Imaging of segmental colorectal volume, morphology, and fecal accumulation is advantageous to conventional methods in its low variability, high spatial resolution, and its absence of contrast-enhancing agents and irradiation. Hence, the method is suitable for future clinical and interventional studies and for characterization of defecation physiology.


Subject(s)
Colon/anatomy & histology , Magnetic Resonance Imaging/methods , Adult , Defecation , Healthy Volunteers , Humans , Male , Organ Size , Reproducibility of Results , Young Adult
14.
Public Health Nurs ; 32(2): 94-100, 2015.
Article in English | MEDLINE | ID: mdl-25040680

ABSTRACT

OBJECTIVES: To evaluate variability in health literacy outcomes due to home visiting (HV) program components including PHN, Intervention, and Client. DESIGN AND SAMPLE: A comparative, correlational study evaluated PHN home visiting program data that included PHNs (N = 16); Interventions (N = 21,634); and Clients (N = 141). Client age ranged from 14 to 46 (median = 21, mean = 22.8, SD = 6.65). Clients were predominately White (75.9%), not married (84.4%), and female (99.3%). PHNS documented care using electronic health records (EHR) and the Omaha System. MEASURES: The outcome of interest was health literacy benchmark attainment (adequate knowledge) operationalized by Omaha System Problem Rating Scale for Outcomes Knowledge scores averaged across problems. INTERVENTION: Program of individually tailored, evidence-based HV interventions provided by PHNs. RESULTS: There were 233 different interventions for 22 problems. Knowledge benchmark was attained by 16.3% of clients. Four factors explained variance in reaching the knowledge benchmark: Client (51%), Problem (17%), Intervention (16%), and PHN (16%). CONCLUSIONS: The PHN and intervention tailoring are actionable components of HV programs that explain variability in health literacy outcomes. Further research should examine effects of training on PHN relationship skills and intervention tailoring to optimize outcomes of evidence-based PHN HV programs, and to evaluate whether improving health literacy may subsequently improve client problems.


Subject(s)
Community Health Nursing/education , Community Health Nursing/trends , Education, Nursing, Graduate/trends , Nurse's Role , Public Health Nursing/education , Public Health Nursing/trends , Humans
15.
Caries Res ; 47(5): 391-8, 2013.
Article in English | MEDLINE | ID: mdl-23594784

ABSTRACT

Root caries is prevalent in elderly disabled nursing home residents in Denmark. This study aimed to compare the effectiveness of tooth brushing with 5,000 versus 1,450 ppm of fluoridated toothpaste (F-toothpaste) for controlling root caries in nursing home residents. The duration of the study was 8 months. Elderly disabled residents (n = 176) in 6 nursing homes in the Copenhagen area consented to take part in the study. They were randomly assigned to use one of the two toothpastes. Both groups had their teeth brushed twice a day by the nursing staff. A total of 125 residents completed the study. Baseline and follow-up clinical examinations were performed by one calibrated examiner. Texture, contour, location and colour of root caries lesions were used to evaluate lesion activity. No differences (p values >0.16) were noted in the baseline examination with regards to age, mouth dryness, wearing of partial or full dentures in one of the jaws, occurrence of plaque and active (2.61 vs. 2.67; SD, 1.7 vs.1.8) or arrested lesions (0.62 vs. 0.63; SD, 1.7 vs. 1.7) between the 5,000 and the 1,450 ppm fluoride groups, respectively. Mean numbers of active root caries lesions at the follow-up examination were 1.05 (2.76) versus 2.55 (1.91) and mean numbers of arrested caries lesions were 2.13 (1.68) versus 0.61 (1.76) in the 5,000 and the 1,450 ppm fluoride groups, respectively (p < 0.001). To conclude, 5,000 ppm F-toothpaste is significantly more effective for controlling root caries lesion progression and promoting remineralization compared to 1,450 ppm F-toothpaste.


Subject(s)
Cariostatic Agents/administration & dosage , Disabled Persons , Fluorides/administration & dosage , Nursing Homes , Root Caries/prevention & control , Toothpastes/therapeutic use , Aged , Aged, 80 and over , Dental Care for Aged , Dental Care for Disabled , Dental Plaque Index , Denture, Complete , Denture, Partial , Disease Progression , Female , Follow-Up Studies , Humans , Male , Middle Aged , Root Caries/pathology , Tooth Remineralization , Toothbrushing/nursing , Xerostomia/classification
16.
J Bone Oncol ; 2(4): 174-9, 2013 Dec.
Article in English | MEDLINE | ID: mdl-26909289

ABSTRACT

We report a single institution experience with total lung irradiation in 53 metastatic bone sarcoma patients in the context of two young female patients who died from treatment-induced pulmonary toxicity. A radiation dose of 19.5 Gy in 1.5 Gy daily fractions was given as two opposing fields with a conventional technique. Both patients succumbed within 3 months following radiotherapy. One patient had osteosarcoma whereas the other advanced Ewing's sarcoma; both with widespread metastases to the lungs at primary diagnosis. In retrospect, most likely high dose methotrexate lung toxicity observed in the osteosarcoma patient, and the GI-toxicity following pelvic radiotherapy in Ewing's case, both observed during the initial phase of their multimodal treatment, might indicate an increased individual radiosensitivity. In view of this, a review of our experience in 53 bone sarcoma patients (19 with Ewing's sarcoma and 34 with osteosarcoma) treated at our institution was conducted. We have not previously experienced significant toxicity following total lung irradiation. Among these, 42% (8/19) with Ewing's sarcoma and 9% (3/34) with osteosarcoma are long-term survivors and without clinically significant lung toxicity.

17.
Ecology ; 93(3): 554-64, 2012 Mar.
Article in English | MEDLINE | ID: mdl-22624210

ABSTRACT

In tropical forests, resource-based niches and density-dependent mortality are mutually compatible mechanisms that can act simultaneously to limit seedling populations. Differences in the strengths of these mechanisms will determine their roles in maintaining species coexistence. In the first assessment of these mechanisms in a Congo Basin forest, we quantified their relative strengths and tested the extent to which density-dependent mortality is driven by the distance-dependent behavior of seed and seedling predators predicted by the Janzen-Connell hypothesis. We conducted a large-scale seed addition experiment for five randomly selected tropical tree species, caging a subset of seed addition quadrats against vertebrate predators. We then developed models to assess the mechanisms that determine seedling emergence (three months after seed addition) and survival (two years after seed addition). As predicted, both niche differentiation and density-dependent mortality limited seedling recruitment, but predation had the strongest effects on seedling emergence and survival. Seedling species responded differently to naturally occurring environmental variation among sites, including variation in light levels and soil characteristics, supporting predictions of niche-based theories of tropical tree species coexistence. The addition of higher densities of seeds into quadrats initially led to greater seedling emergence, but survival to two years decreased with seed density. Seed and seedling predation reduced recruitment below levels maintained by density-dependent mortality, an indication that predators largely determine the population size of tree seedlings. Seedling recruitment was unrelated to the distance to or density of conspecific adult trees, suggesting that recruitment patterns are generated by generalist vertebrate herbivores rather than the specialized predators predicted by the Janzen-Connell hypothesis. If the role of seed and seedling predation in limiting seedling recruitment is a general phenomenon, then the relative abundances of tree species might largely depend on species-specific adaptations to avoid, survive, and recover from damage induced by vertebrate herbivores. Likewise, population declines of herbivorous vertebrate species (many of which are large and hunted) may trigger shifts in species composition of tropical forests.


Subject(s)
Ecosystem , Herbivory/physiology , Seedlings/physiology , Trees/physiology , Vertebrates/physiology , Animals , Congo , Models, Biological , Population Dynamics , Seeds , Soil
18.
Ecol Appl ; 21(5): 1819-36, 2011 Jul.
Article in English | MEDLINE | ID: mdl-21830721

ABSTRACT

In tropical forests, hunting nearly always accompanies logging. The entangled nature of these disturbances complicates our ability to resolve applied questions, such as whether secondary and degraded forest can sustain populations of tropical animals. With the expansion of logging in central Africa, conservation depends on knowledge of the individual and combined impacts of logging and hunting on animal populations. Our goals were (1) to decouple the effects of selective logging and hunting on densities of animal guilds, including apes, duikers, monkeys, elephant, pigs, squirrels, and large frugivorous and insectivorous birds and (2) to compare the relative importance of these disturbances to the effects of local-scale variation in forest structure and fruit abundance. In northern Republic of Congo, we surveyed animals along 30 transects positioned in forest disturbed by logging and hunting, logging alone, and neither logging nor hunting. While sampling transects twice per month for two years, we observed 47 179 animals of 19 species and eight guilds in 1154 passages (2861 km). Species densities varied by as much as 480% among forest areas perturbed by logging and/or hunting, demonstrating the strong effects of these disturbances on populations of some species. Densities of animal guilds varied more strongly with disturbance type than with variation in forest structure, canopy cover, and fruit abundance. Independently, logging and hunting decreased density of some guilds and increased density of others: densities varied from 44% lower (pigs) to 90% higher (insectivorous birds) between logged and unlogged forest and from 61% lower (apes) to 77% higher (frugivorous birds) between hunted and unhunted forest. Their combined impacts exacerbated decreases in populations of some guilds (ape, duiker, monkey, and pig), but counteracted one another for others (squirrels, insectivorous and frugivorous birds). Together, logging and hunting shifted the relative abundance of the animal community away from large mammals toward squirrels and birds. Logged forest, even in the absence of hunting, does not maintain similar densities as unlogged forest for most animal guilds. To balance conservation with the need for economic development and wild meat in tropical countries, landscapes should be spatially managed to include protected areas, community hunting zones, and production forest.


Subject(s)
Ecosystem , Forestry , Animals , Computer Simulation , Congo , Human Activities , Humans , Models, Biological , Population Dynamics
19.
Appl Clin Inform ; 2(3): 373-83, 2011.
Article in English | MEDLINE | ID: mdl-23616884

ABSTRACT

OBJECTIVES: To develop evidence-based standardized care plans (EB-SCP) for use internationally to improve home care practice and population health. METHODS: A clinical-expert and scholarly method consisting of clinical experts recruitment, identification of health concerns, literature reviews, development of EB-SCPs using the Omaha System, a public comment period, revisions and consensus. RESULTS: Clinical experts from Canada, the Netherlands, New Zealand, and the United States participated in the project, together with University of Minnesota School of Nursing graduate students and faculty researchers. Twelve Omaha System problems were selected by the participating agencies as a basic home care assessment that should be used for all elderly and disabled patients. Interventions based on the literature and clinical expertise were compiled into EB-SCPs, and reviewed by the group. The EB-SCPs were revised and posted on-line for public comment; revised again, then approved in a public meeting by the participants. The EB-SCPs are posted on-line for international dissemination. CONCLUSIONS: Home care EB-SCPs were successfully developed and published on-line. They provide a shared standard for use in practice and future home care research. This process is an exemplar for development of evidence-based practice standards to be used for assessment and documentation to support global population health and research.

20.
BMJ Case Rep ; 20112011 Mar 03.
Article in English | MEDLINE | ID: mdl-22715253

ABSTRACT

The authors present a case of Austrian syndrome, the triad of pneumococcal pneumonia, endocarditis and meningitis, in a 49-year-old woman, who developed severe acute heart failure due to aortic valve destruction. The patient required imminent valve surgery, but eventually recovered.


Subject(s)
Endocarditis, Bacterial , Meningitis, Pneumococcal , Pneumococcal Infections , Pneumonia, Pneumococcal , Acute Disease , Endocarditis, Bacterial/complications , Female , Heart Failure/etiology , Humans , Meningitis, Pneumococcal/complications , Middle Aged , Pneumococcal Infections/complications , Pneumonia, Pneumococcal/complications , Syndrome
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