| 1. |
- Agaton, C., et al.
(författare)
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Affinity proteomics for systematic protein profiling of chromosome 21 gene products in human tissues
- 2003
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Ingår i: Molecular & Cellular Proteomics. - 1535-9476 .- 1535-9484. ; 2, s. 405-
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Tidskriftsartikel (refereegranskat)abstract
- Here we show that an affinity proteomics strategy using affinity-purified antibodies raised against recombinant human protein fragments can be used for chromosome-wide protein profiling. The approach is based on affinity reagents raised toward bioinformatics-designed protein epitope signature tags corresponding to unique regions of individual gene loci. The genes of human chromosome 21 identified by the genome efforts were investigated, and the success rates for de novo cloning, protein production, and antibody generation were 85, 76, and 56%, respectively. Using human tissue arrays, a systematic profiling of protein expression and subcellular localization was undertaken for the putative gene products. The results suggest that this affinity proteomics strategy can be used to produce a proteome atlas, describing distribution and expression of proteins in normal tissues as well as in common cancers and other forms of diseased tissues.
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| 2. |
- Akkawi, Ranaa, et al.
(författare)
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Effect of oral naloxone hydrochloride on gastrointestinal transit in premature infants treated with morphine
- 2009
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Ingår i: Acta Paediatrica. - : Wiley. - 0803-5253 .- 1651-2227. ; 98:3, s. 442-447
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Tidskriftsartikel (refereegranskat)abstract
- Background: Opioids are common drugs for pain treatment in preterm newborn infants, in spite of several adverse effects. Constipation is a frequent problem when opioids are used in both adults and neonates. Although several studies indicate that the oral administration of naloxone hydrochloride (NH) improves intestinal motility during opioid therapy, there is still a lack of evidence in newborns. Aim: The aim of this study was to assess the efficacy of NH against reduced intestinal motility during opioid treatment. Methods: A retrospective cohort study was performed. We analysed the medical records of fifteen infants (Group 1) treated with continuous morphine (MO) infusion and fourteen infants (Group 2) treated with both oral NH (3 mu g/kg 4 times daily) and MO. Results: There was no statistically significant difference in the total MO dose. Infants treated both with NH and MO had a tendency to improve their mean stool frequency/day. A statistically significant improvement was observed in the mean total food intake (mL/kg/day) of the infants treated with NH (p = 0.014). No difference in the mean food retention between the two groups was observed. Conclusion: Orally administrated NH seems to improve intestinal motility resulting in increased food intake/day and improved stool frequency/day in premature newborn infants treated with MO. Further studies are needed to corroborate these findings.
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| 3. |
- Alm, Fredrik, 1983-, et al.
(författare)
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Adherence to Swedish guidelines for pain treatment in relation to pediatric tonsil surgery : A survey of the multidisciplinary team
- 2017
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Ingår i: International Journal of Pediatric Otorhinolaryngology. - : Elsevier. - 0165-5876 .- 1872-8464. ; 101, s. 123-131
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Tidskriftsartikel (refereegranskat)abstract
- Background: Pain management in children after tonsil surgery is essential, and optimal pain treatment has been discussed for many years. Data from the National Tonsil Register in Sweden (NTRS) and a national mapping system have demonstrated the need for national pain treatment guidelines for pediatric tonsil surgery. As a result, Swedish national guidelines, together with updated patient information on the website tonsilloperation.se, were developed and implemented in 2013.Objectives The objective of this study was to evaluate the professionals’ opinions of and adherence to pain treatment guidelines for pediatric tonsil surgery patients in a two-year follow-up.Method: This descriptive cross-sectional study was based on data from an inter-professional questionnaire, which was validated by an expert group using a content validity index (S-CVI 0.93). The questionnaire was sent to all Swedish ear, nose and throat (ENT) departments (n=49) that the NTRS identified as performing tonsil surgery on children younger than 18 years of age. In each clinic, we asked for responses from staff in each of the following professions: ENT physicians, anesthesia physicians, registered nurse anesthetists, and registered nurses in the ENT departments.Results: Respondents from 48 ENT departments participated, and 139/163 (85%) completed questionnaires were returned. The guidelines were reported as being clear, ensuring patient safety and providing optimal pharmacological treatment. Treatment was given according to the guidelines: Half of the departments gave pre- or intraoperative treatment with clonidine, betamethasone and high-dose paracetamol (acetaminophen). A multimodal pain approach (paracetamol and COX inhibitors) after hospital discharge was prescribed by all departments after tonsillectomy and, more extensively, after tonsillotomy. One-third of the departments prescribed paracetamol with a higher normal dose for the first three postoperative days. Half of the departments prescribed rescue analgesics, clonidine or opioids after tonsillectomy. None of the departments prescribed codeine or tramadol, drugs that are discouraged in the guidelines. The majority of the departments used the website tonsilloperation.se to provide information to the patients and their caregivers.Conclusion: The respondents' opinions of and the ENT departments adherence to the Swedish national guidelines were considered to be good. The national implementation process in Sweden has impacted the manner in which ENT departments treat pain after tonsil surgery.
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| 4. |
- Alm, Fredrik, 1983-, et al.
(författare)
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Adherence to Swedish Guidelines for Pain Treatment in Tonsil Surgery in Pediatric Patients
- 2016
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Konferensbidrag (refereegranskat)abstract
- Objective: As shown by data from the National Tonsil Surgery Register in Sweden, tonsil surgery often causes severe pain that lasts for many days. The register data demonstrate the necessity for better evidence-based pain treatment guidelines for tonsil surgery. The guidelines, introduced in 2013, consist of both pharmacological and non-pharmacological recommendations. In the guidelines, a multimodal analgesic approach and combination of analgesics are recommended to provide effective pain treatment with limited side effects. Two national multi-professional education days on pain, pharmacology and the guidelines were offered. Web-based information about pharmacological treatment (www.tonsililloperation.se) was designed for patients and next-of-kin. The current aims were to describe adherence to the Swedish guidelines for pain treatment in tonsil surgery in pediatric patients < 18 yearsMethod: An inter-professional questionnaire was developed, including questions linked to the relevant guidelines. The questions came from a national mapping before the guidelines were designed. The items were discussed by an expert group, and content validity was evaluated using the content validity index.ENT-and anesthesia physicians and nurses from all 50 ENT clinics in Sweden were enrolled.Results: Most clinics had received the guidelines, but there was a discrepancy between the professions. More than half had perused the literature review performed before the guidelines were designed, and attended themulti-professional education day. Pre- and perioperative treatment usually included paracetamol, clonidine and betamethasone. A multimodal pain approach after discharge from hospital (tonsillectomy and tonsillotomy) was used, combining paracetamol with cox-inhibitors. Most clinics used paracetamol, with a higher dose for the first 3 days (healthy children and acceptable nutrition), and a reduced dose from day 4.In case of inadequate analgesia after tonsillectomy, oral clonidine or opioids were used. Several clinics followed the recommendation to use clonidine as first choice and secondly an opioid. No respondents prescribed codeine compared to 80% at the mapping before the guidelines were designed. The guidelines were experienced as clear, safe and sufficient. The web-based information was used by most of the clinics to improve quality of care and provide facilitating tools for patients, relatives and caregivers.Conclusion: Swedish guidelines for tonsil surgery provide practical evidence-based pain treatment recommendations. To achieve a change, multi-professional education is necessary. This needs to be repeated for a wider spread.Future research should include evaluation through pain diaries and questionnaires to next-of-kin and children. There should be matching of data from the quality registers at each clinic, with pain variables such as unplanned health care contacts due to pain, number of days with analgesics, and return to normal diet
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| 5. |
- Alm, Fredrik, 1983-, et al.
(författare)
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Improving pain management after pediatric tonsil surgery – an ongoing project
- 2018
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Konferensbidrag (refereegranskat)abstract
- The National Tonsil Surgery Register in Sweden collects perioperative data from health care professionals and patient reported outcome measures 30 days and 6 months after surgery. Since 2009, patient-reported outcome measures, include questions related to pain.Objective: To illustrate the process of improvements, efforts, and the use of a quality register in pain, and pain management after tonsil surgery in Sweden.Method: Quantitative and qualitative research.Results: Registry data indicated unrelieved postoperative pain with a high proportion of health care contacts. This resulted in the implementation of the Swedish National Guidelines (2013), and patient information published on the website www.tonsilloperation.se. The guidelines recommend multimodal pain treatment with paracetamol combined with COX-inhibitors, and if necessary, oral clonidine rather than opioids as rescue analgesics. A national survey (2015) showed that Swedish ENT-professionals’ opinions of, and the ENT-departments adherence to the guidelines were good. According to the national registry data (2017), the implementation has resulted in longer use of post-operative analgesic and fewer contacts with healthcare. Simultaneously, registry data showed that operating methods and techniques, age, and indication for surgery affect the pain outcome. Results from age-oriented pain diaries and qualitative interviews (2017-2018) capture the children’s and caregivers’ perspectives on pain, and pain treatment. Preliminary results show that type of pain treatment affects the quality of the postoperative care and recovery.Conclusion: Pain management after tonsil surgery has been, and still is, a challenge for ENT-professionals and constant improvements are necessary.
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| 6. |
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| 7. |
- Alm, Fredrik, 1983-, et al.
(författare)
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Postoperative pain, pain management, and recovery at home after pediatric tonsil surgery
- 2021
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Ingår i: European Archives of Oto-Rhino-Laryngology. - : Springer. - 0937-4477 .- 1434-4726. ; 278, s. 451-461
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: To explore the severity and duration of postoperative pain, the management of analgesics, and postoperative recovery in children undergoing tonsil surgery.METHOD: Participants included 299 children aged 4-17 years undergoing tonsillotomy ± adenoidectomy (TT ± A) or tonsillectomy ± adenoidectomy (TE ± A). Data were collected up to 12 days. The child rated pain on the Face Pain Scale-Revised (FPS-R) and recovery using the Postoperative Recovery in Children (PRiC) questionnaire. Caregivers assessed their child's pain, anxiety, and nausea on a numeric analog scale and kept a log of analgesic administration.RESULTS: High pain levels (FPS-R ≥ 4) were reported in all surgical and age groups (TT ± A age 4-11, TE ± A age 4-11, TE ± A age 12-17), but there were variations in pain intensity and duration within and between groups. The TE ± A group scored more days with moderate to very excruciating pain and lower recovery than the TT ± A group, with the worst outcomes reported by older TE ± A children. The majority of the children used paracetamol + COX-inhibitors at home, but regular administration of analgesics was lacking, particularly during late evening and at night. Few were received rescue medication (opioid or clonidine) despite severe pain. Physical symptoms and daily life activities were affected during the recovery period. There was moderate agreement between child and the caregiver's pain assessment scores.CONCLUSION: Children reported a troublesome recovery with significant postoperative pain, particularly older children undergoing tonsillectomy. Pain treatment at home was suboptimal and lacked regular analgesic administration. Patient information needs to be improved regarding the importance of regular administration of analgesics and rescue medication.
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| 8. |
- Alm, Fredrik, 1983-
(författare)
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Postoperative recovery in children after tonsil surgery : with a focus on pain and pain management from the child's, caregivers', and professionals' perspectives
- 2021
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Tonsil surgery is one of the most common surgical procedures in children. Although there are several health benefits associated with this surgery, the recovery can be challenging. The overall aim of this thesis was to explore varied perspectives of the recovery process following pediatric tonsil surgery, with a focus on postoperative pain and pain management at home. Study I used data from the National Tonsil Surgery Register in Sweden (n=32,225) to investigate factors affecting pain after pediatric tonsil surgery. Age, surgical method, and indication for surgery influenced the outcome of the patient-reported pain-related outcome measures. In Study II, children (n=299) and their caregiver(s) filled in a diary containing age-appropriate instruments, up to 12 days postoperatively. Data were then analyzed to explore the severity and duration of postoperative pain, the management of analgesics, and postoperative recovery. Children and caregivers reported significant pain for several days, along with a range of physical symptoms and impact on daily activities and emotional state. There was a lack of regular administration of analgesics in the home, particularly during late evening and night. In Study III, interviews with children (n=20) and their caregivers were performed to explore experiences and management of postoperative recovery at home. The results showed that the families struggled to establish resilience during the challenging recovery. The families used both pharmacological and complementary strategies to manage this period. Some families reported insufficient analgesia in preventing breakthrough pain, a lack of preparedness, inadequate information, and insufficient support from the healthcare. In Study IV, nurses and physicians (n=139) from Swedish ear, nose, and throat departments (n=48) responded to a questionnaire covering their opinions of and adherence to the Swedish guidelines for the treatment of pain in pediatric tonsil surgery. In accordance with the guidelines, the departments provided instructions for a multimodal analgesic regimen to manage pain in the home after tonsil surgery. Still, differences were noted between the departments regarding doses and routines around rescue analgesics. Overall, the experience of pain was significant, and often complex to manage. Besides pain, the postoperative period included several troublesome experiences for which neither the children nor the caregivers were informed or prepared. These findings offer knowledge to multidisciplinary teams which can help them improve the support they give to families and increase the child’s participation during the recovery process after tonsil surgery.
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| 9. |
- Andersson, Anders, et al.
(författare)
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A transcriptional timetable of autumn senescence
- 2004
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Ingår i: Genome Biology. - : Springer Science and Business Media LLC. - 1465-6906 .- 1474-760X. ; 5:4, s. R24-
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Tidskriftsartikel (refereegranskat)abstract
- Background We have developed genomic tools to allow the genus Populus (aspens and cottonwoods) to be exploited as a full-featured model for investigating fundamental aspects of tree biology. We have undertaken large-scale expressed sequence tag (EST) sequencing programs and created Populus microarrays with significant gene coverage. One of the important aspects of plant biology that cannot be studied in annual plants is the gene activity involved in the induction of autumn leaf senescence. Results On the basis of 36,354 Populus ESTs, obtained from seven cDNA libraries, we have created a DNA microarray consisting of 13,490 clones, spotted in duplicate. Of these clones, 12,376 (92%) were confirmed by resequencing and all sequences were annotated and functionally classified. Here we have used the microarray to study transcript abundance in leaves of a free-growing aspen tree (Populus tremula) in northern Sweden during natural autumn senescence. Of the 13,490 spotted clones, 3,792 represented genes with significant expression in all leaf samples from the seven studied dates. Conclusions We observed a major shift in gene expression, coinciding with massive chlorophyll degradation, that reflected a shift from photosynthetic competence to energy generation by mitochondrial respiration, oxidation of fatty acids and nutrient mobilization. Autumn senescence had much in common with senescence in annual plants; for example many proteases were induced. We also found evidence for increased transcriptional activity before the appearance of visible signs of senescence, presumably preparing the leaf for degradation of its components.
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| 10. |
- Bhalerao, Rupali, et al.
(författare)
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Gene expression in autumn leaves
- 2003
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Ingår i: Plant Physiology. - : Oxford University Press (OUP). - 0032-0889 .- 1532-2548. ; 131:2, s. 430-442
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Tidskriftsartikel (refereegranskat)abstract
- Two cDNA libraries were prepared, one from leaves of a field-grown aspen (Populus tremula) tree, harvested just before any visible sign of leaf senescence in the autumn, and one from young but fully expanded leaves of greenhouse-grown aspen (Populus tremula X tremuloides). Expressed sequence tags (ESTs; 5,128 and 4,841, respectively) were obtained from the two libraries. A semiautomatic method of annotation and functional classification of the ESTs, according to a modified Munich Institute of Protein Sequences classification scheme, was developed, utilizing information from three different databases. The patterns of gene expression in the two libraries were strikingly different. In the autumn leaf library, ESTs encoding metallothionein, early light-inducible proteins, and cysteine proteases were most abundant. Clones encoding other proteases and proteins involved in respiration and breakdown of lipids and pigments, as well as stress-related genes, were also well represented. We identified homologs to many known senescence-associated genes, as well as seven different genes encoding cysteine proteases, two encoding aspartic proteases, five encoding metallothioneins, and 35 additional genes that were up-regulated in autumn leaves. We also indirectly estimated the rate of plastid protein synthesis in the autumn leaves to be less that 10% of that in young leaves.
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