| 1. |
- Tai, F, et al.
(författare)
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Abdominal Wall Miscellaneous
- 2015
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Ingår i: Hernia : the journal of hernias and abdominal wall surgery. - 1248-9204. ; 19 Suppl 1, s. S5-S12
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Tidskriftsartikel (refereegranskat)
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| 2. |
- North, R. L., et al.
(författare)
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The state of Lake Simcoe (Ontario, Canada) : the effects of multiple stressors on phosphorus and oxygen dynamics
- 2013
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Ingår i: Inland Waters. - 2044-2041 .- 2044-205X. ; 3:1, s. 51-74
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Tidskriftsartikel (refereegranskat)abstract
- Lake Simcoe, the largest lake in southern Ontario outside of the Laurentian Great Lakes, is affected by numerous stressors including eutrophication resulting from total phosphorus (TP) loading, climate change, and invasions of exotic species. We synthesized the long-term responses of Lake Simcoe to these stressors by assessing trends in water quality and biological composition over multiple trophic levels. Evidence for climate change included increasing thermal stability of the lake and changes in subfossil diatom communities over time. Although the deep water dissolved oxygen (O-2) minimum has increased significantly since TP load reductions, it is still below estimated historical values and the Lake Simcoe Protection Plan end-of-summer target level of 7 mg O-2 L-1. Low deep water O-2 concentrations corresponded with a decline in coldwater fish abundance. Since 1980, some nutrient concentrations have decreased (spring TP) while others have increased (silica), but many show no obvious changes (ice-free TP, nitrate, ammonium). Increases in water clarity, combined with declines in chlorophyll a and phytoplankton biovolumes in Cook's Bay, were temporally consistent with declines in TP loading and the lake-wide establishment of dreissenid mussels as a major component of the Lake Simcoe ecosystem. Using an investigative tool, we identified 2 periods when abrupt shifts potentially occurred in multiple parameters: 1986 and 1995-1997. Additional ecosystem level changes such as declines in zooplankton, declines in offshore benthic invertebrate abundance, and increased nearshore invertebrate abundance likely reflect the effects of invasive species. The interaction of these multiple stressors have significantly altered the Lake Simcoe ecosystem.
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| 3. |
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| 4. |
- Håkanson, B S, et al.
(författare)
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Open vs laparoscopic partial posterior fundoplication : A prospective randomized trial
- 2007
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Ingår i: Surgical Endoscopy. - New York, USA : Springer Science+Business Media B.V.. - 0930-2794 .- 1432-2218. ; 21:2, s. 289-98
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Tidskriftsartikel (refereegranskat)abstract
- Objective: This study compares outcomes following open and laparoscopic partial posterior fundoplication for gastroesophageal reflux disease concerning perioperative course, postoperative complications, symptomatic relief, recurrent disease, and the need for reinterventional surgery.Methods: A prospective randomized trial was performed. Pre- and postoperative testing included endoscopy, esophageal function testing, patient questionnaire, and clinical assessment. Patients were followed for three years.Materials: Ninety-three patients were randomized to open and 99 to laparoscopic surgery.Results: Complication rates were higher, and length of stay (LOS) [5 (3-36) vs 3 (1-12) days] and time off work [42 (12-76) vs 28 (0-108) days] was longer in the open group (p < 0.01). Early side effects and recurrences were more common (p < 0.05) in the laparoscopic group. One patient in the open group and 8 patients in the laparoscopic group required surgery for recurrent disease and 7 patients required surgery for incisional hernias after open surgery. Overall, at one and three years, there were no differences in patient-assessed satisfactory outcome (93.5/93.5 vs 88.8/90.8%) or reflux control (p = 0.53) between the open and laparoscopic groups.Conclusions: The finding of fewer general complications, shorter length of stay and recovery, similar need for reoperations, and comparable 3-year outcomes, makes the laparoscopic approach the primary choice when considering surgical options for the treatment of gastroesophageal reflux disease (GERD).
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| 6. |
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| 7. |
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| 9. |
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| 10. |
- Parparov, A., Håkanson, L., Hambright, K.D. and Ostapenia, A.
(författare)
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Some problems associated with quantification of water quality
- 2002
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Ingår i: Yacobi, Y.Z. (ed.). Kinnet Notes: A collection of papers dedicated to the late Talya Bergstein- Ben Dom. Israel Oceanographic and Limnological Research Ltd, Tiberias, pp. 158-166..
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Konferensbidrag (refereegranskat)
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| 11. |
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| 12. |
- Analatos, Apostolos, et al.
(författare)
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Tension-free mesh versus suture-alone cruroplasty in antireflux surgery : a randomized, double-blind clinical trial
- 2020
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Ingår i: British Journal of Surgery. - : John Wiley & Sons. - 0007-1323 .- 1365-2168. ; 107:13, s. 1731-1740
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundAntireflux surgery is effective for the treatment of gastro-oesophageal reflux disease (GORD) but recurrence of hiatal hernia remains a challenge. In other types of hernia repair, use of mesh is associated with reduced recurrence rates. The aim of this study was to compare the use of mesh versus sutures alone for the repair of hiatal hernia in laparoscopic antireflux surgery.MethodsPatients undergoing laparoscopic Nissen fundoplication for GORD between January 2006 and December 2010 were allocated randomly to closure of the diaphragmatic hiatus with crural sutures or non-absorbable polytetrafluoroethylene mesh (CruraSoft®). The primary outcome was recurrence of hiatal hernia, as determined by barium swallow study 12 months after surgery. Secondary outcomes were: intraoperative and postoperative complications, use of antireflux medication, postoperative oesophageal acid exposure, quality of life, dysphagia and duration of hospital stay.ResultsSome 77 patients were randomized to the suture technique and 82 patients underwent mesh repair. At 1 year, the hiatal hernia had recurred in six of 64 patients (9 per cent) in the mesh group and two of 64 (3 per cent) in the suture group (P = 0·144). Reflux symptoms, use of proton pump inhibitors and oesophageal acid exposure did not differ between the groups. At 3 years, recurrence rates were 13 and 10 per cent in the mesh and suture groups respectively (P = 0·692). Dysphagia scores decreased in both groups, but more patients had dysphagia for solid food after mesh closure (P = 0·013). Quality-of-life scores were comparable between the groups.ConclusionTension-free crural repair with non-absorbable mesh does not reduce the incidence of recurrent hiatal hernia compared with use of sutures alone in patients undergoing laparoscopic fundoplication. NCT03730233 (http://www.clinicaltrials.gov).
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| 13. |
- de Erausquin, Gabriel A, et al.
(författare)
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Chronic neuropsychiatric sequelae of SARS-CoV-2: Protocol and methods from the Alzheimer's Association Global Consortium.
- 2022
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Ingår i: Alzheimer's & dementia (New York, N. Y.). - : Wiley. - 2352-8737. ; 8:1
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Tidskriftsartikel (refereegranskat)abstract
- Coronavirus disease 2019 (COVID-19) has caused >3.5 million deaths worldwide and affected >160 million people. At least twice as many have been infected but remained asymptomatic or minimally symptomatic. COVID-19 includes central nervous system manifestations mediated by inflammation and cerebrovascular, anoxic, and/or viral neurotoxicity mechanisms. More than one third of patients with COVID-19 develop neurologic problems during the acute phase of the illness, including loss of sense of smell or taste, seizures, and stroke. Damage or functional changes to the brain may result in chronic sequelae. The risk of incident cognitive and neuropsychiatric complications appears independent from the severity of the original pulmonary illness. It behooves the scientific and medical community to attempt to understand the molecular and/or systemic factors linking COVID-19 to neurologic illness, both short and long term.This article describes what is known so far in terms of links among COVID-19, the brain, neurological symptoms, and Alzheimer's disease (AD) and related dementias. We focus on risk factors and possible molecular, inflammatory, and viral mechanisms underlying neurological injury. We also provide a comprehensive description of the Alzheimer's Association Consortium on Chronic Neuropsychiatric Sequelae of SARS-CoV-2 infection (CNS SC2) harmonized methodology to address these questions using a worldwide network of researchers and institutions.Successful harmonization of designs and methods was achieved through a consensus process initially fragmented by specific interest groups (epidemiology, clinical assessments, cognitive evaluation, biomarkers, and neuroimaging). Conclusions from subcommittees were presented to the whole group and discussed extensively. Presently data collection is ongoing at 19 sites in 12 countries representing Asia, Africa, the Americas, and Europe.The Alzheimer's Association Global Consortium harmonized methodology is proposed as a model to study long-term neurocognitive sequelae of SARS-CoV-2 infection.The following review describes what is known so far in terms of molecular and epidemiological links among COVID-19, the brain, neurological symptoms, and AD and related dementias (ADRD)The primary objective of this large-scale collaboration is to clarify the pathogenesis of ADRD and to advance our understanding of the impact of a neurotropic virus on the long-term risk of cognitive decline and other CNS sequelae. No available evidence supports the notion that cognitive impairment after SARS-CoV-2 infection is a form of dementia (ADRD or otherwise). The longitudinal methodologies espoused by the consortium are intended to provide data to answer this question as clearly as possible controlling for possible confounders. Our specific hypothesis is that SARS-CoV-2 triggers ADRD-like pathology following the extended olfactory cortical network (EOCN) in older individuals with specific genetic susceptibility.The proposed harmonization strategies and flexible study designs offer the possibility to include large samples of under-represented racial and ethnic groups, creating a rich set of harmonized cohorts for future studies of the pathophysiology, determinants, long-term consequences, and trends in cognitive aging, ADRD, and vascular disease.We provide a framework for current and future studies to be carried out within the Consortium. and offers a "green paper" to the research community with a very broad, global base of support, on tools suitable for low- and middle-income countries aimed to compare and combine future longitudinal data on the topic.The Consortium proposes a combination of design and statistical methods as a means of approaching causal inference of the COVID-19 neuropsychiatric sequelae. We expect that deep phenotyping of neuropsychiatric sequelae may provide a series of candidate syndromes with phenomenological and biological characterization that can be further explored. By generating high-quality harmonized data across sites we aim to capture both descriptive and, where possible, causal associations.
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| 14. |
- de la Cour, Charlotta, et al.
(författare)
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A-like cells in the rat stomach contain ghrelin and do not operate under gastrin control
- 2001
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Ingår i: Regulatory Peptides. - 1873-1686. ; 99:2-3, s. 141-150
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Tidskriftsartikel (refereegranskat)abstract
- Ghrelin is a 28 a.a. gastric peptide, recently identified as a natural ligand of the growth hormone secretagogue receptor (orphan receptor distinct from the receptor fur growth hormone releasing hormone). In the present study. radioimmunoassay demonstrated ghrelin-like material in the rat oxyntic mucosa with moderate amounts also in antrum and duodenum. Small amounts: were found in the distal intestines and pancreas. Northern blot analysis revealed abundant ghrelin mRNA in thr oxyntic mucosa. Immunocytochemistry demonstrated ghrelin-immunoreactivity in endocrine-like cells in the oxyntic mucosa. Such cells occurred in low numbers also in the antrum and duodenum. The mt oxyntic mucosa is rich in endocrine (chromogranin A/pancreastatin-immunoreactive) cells. such as the histamine-rich ECL cells (65-75% of the endocrine cells). the A-like cells (20-25%) and the D cells (somatostatin cells) (10%). The ghrelin-immunoreactive (IR) cells contained pancreastatin but differed from ECL cells and D cells by being devoid of histamine-forming enzyme (ECL cell constituent) and somatostatin (D cell constituent). Hence. ghrelin seems to occur in the A-like cells. The ghrelin-IR cells in the antrum were distinct from the gastrin cells, the serotonin-containing enterochromaffin cells and the D cells. Conceivably, ghrelin cells in the antrum and distally in the intestines also belong to the A-like cell population. The concentration of ghrelin in the circulation was: lowered by about 80% following the surgical removal of the acid-producing part of the stomach in line with the view that the oxyntic mucosa is the major sourer of ghrelin. The serum ghrelin concentration was higher in fasted rats than in fed rats; it was reduced upon re-feeding and seemed unaffected by 1-week treatment with the proton pump inhibitor omeprazole, resulting in elevated serum gastrin concentration. Infusion of gastrin-17 for 2 days failed to raise the serum ghrelin concentration. Omeprazole treatment for 10 weeks raised the level of HDC mRNA but not that of ghrelin mRNA or somatostatin mRNA in the oxyntic mucosa. Hence, unlike the ECL cells, ghrelin-containing A-like cells do not seem to operate under gastrin control.
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| 15. |
- Hofman, D., et al.
(författare)
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Computerised Decision Support Systems for the management of freshwater radioecological emergencies : assessment of the state-of-the-art with respect to the experiences and needs of end-users
- 2011
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Ingår i: Journal of Environmental Radioactivity. - : Elsevier BV. - 0265-931X .- 1879-1700. ; 102:2, s. 119-127
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Tidskriftsartikel (refereegranskat)abstract
- Assessment of the environmental and radiological consequences of a nuclear accident requires the management of a great deal of data and information as well as the use of predictive models. Computerised Decision Support Systems (CDSS) are essential tools for this kind of complex assessment and for assisting experts with a rational decision process. The present work focuses on the assessment of the main features of selected state-of-the-art CDSS for off-site management of freshwater ecosystems contaminated by radionuclides. This study involved both developers and end-users of the assessed CDSS and was based on practical customisation exercises, installation and application of the decision systems. Potential end-users can benefit from the availability of several ready-to-use CDSS that allow one to run different kinds of models aimed at predicting the behaviour of radionuclides in aquatic ecosystems, evaluating doses to humans, assessing the effectiveness of different kinds of environmental management interventions and ranking these interventions, accounting for their social, economic and environmental impacts. As a result of the present assessment, the importance of CDSS "integration" became apparent: in many circumstances, different CDSS can be used as complementary tools for the decision-making process. The results of this assessment can also be useful for the future development and improvement of the CDSS.
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| 16. |
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| 19. |
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| 20. |
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| 21. |
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| 22. |
- Håkanson, L., et al.
(författare)
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Bortförklaringar från Winberg.
- 2002
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Ingår i: Dagens Nyheter 2002-03-05.
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Tidskriftsartikel (populärvet., debatt m.m.)
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| 23. |
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| 24. |
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| 25. |
- Håkanson, L., et al.
(författare)
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Rening ökar dioxin i fisk.
- 2002
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Ingår i: Dagens Nyheter-Debatt, 2002-02-02.
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Tidskriftsartikel (populärvet., debatt m.m.)
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| 26. |
- Håkanson, L., et al.
(författare)
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Så kan Östersjön förbättras
- 2002
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Ingår i: Upsala Nya Tidning, 2002-11-06.
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Tidskriftsartikel (populärvet., debatt m.m.)
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| 27. |
- Håkanson, L., et al.
(författare)
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Östersjön i dödskamp.
- 2001
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Annan publikation (populärvet., debatt m.m.)
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| 28. |
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| 29. |
- Larsson, B, et al.
(författare)
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Effects of ECL cell extracts and granule/vesicle-enriched fractions from rat oxyntic mucosa on cAMP and IP3 in rat osteoblast-like cells
- 2002
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Ingår i: Regulatory Peptides. - 1873-1686. ; 106:1-3, s. 13-18
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Tidskriftsartikel (refereegranskat)abstract
- The existence of an osteotropic hormone (referred to as gastrocalcin) in the ECL cells of the gastric mucosa has been suggested. Both gastrin and an extract of the oxyntic mucosa lower blood Ca2+ and stimulate Ca2+ uptake into bone. The ECL cells are known to operate under gastrin control and, conceivably, gastrin lowers blood Ca2+ indirectly by releasing the hypothetical ECL cell hormone. We have shown earlier that extracts of isolated ECL cells or of the granule/vesicle fraction of the oxyntic mucosa evoke a typical Ca2+ mediated second messenger response in osteoblastic cells. In the present study, we characterize this response further. An increase in intracellular inositol 1,4,5-trisphosphate (IP3) concentration was observed after treatment of UMR-106.01 osteoblast-like cells with extracts of ECL cells or granule/vesicle-enriched fractions from oxyntic mucosa. Intracellular cyclic adenosine monophosphate (cAMP) concentrations were not affected. Inhibition of phospholipase C (PLC) by U-73122 abolished the increase in [Ca2+](i). Preincubation of UMR-106.01 cells with pertussis toxin, which blocks many G-proteins, did not prevent the increases in IP3 and [Ca2+](i). It was also found that the novel peptide hormone ghrelin, produced in the A-like cells of the oxyntic mucosa, did not evoke any Ca2+ signal in osteoblastic cells. The results indicate that the extracts mediate their effects through a pertussis toxin-insensitive mechanism, and that binding to a receptor leads to activation of PLC and production of IP3 resulting in increased [Ca2+](i). The putative osteotropic hormone is distinct from ghrelin.
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| 30. |
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| 31. |
- Monstein, H J, et al.
(författare)
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Cholecystokinin-A and cholecystokinin-B/gastrin receptor mRNA expression in the gastrointestinal tract and pancreas of the rat and man. A polymerase chain reaction study
- 1996
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Ingår i: Scandinavian Journal of Gastroenterology. - : Informa UK Limited. - 1502-7708 .- 0036-5521. ; 31:4, s. 383-390
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Gastrin and cholecystokinin (CCK) are thought to exert trophic effects on the gastrointestinal tract and pancreas. Two types of receptors have been cloned, CCK-A and CCK-B/ gastrin. We have examined the occurrence of CCK-A and CCK-B receptor mRNA in the brain, digestive tract, pancreas, and kidney of the rat and man by Northern blot and reverse transcribed polymerase chain reaction (RT-PCR). METHODS: Total RNA was isolated from rat tissues and reverse transcribed into cDNA. cDNA from brain, kidney, and pancreas of the rat and man and from human whole stomach were commercially available. Northern blot and a PCR technique based on Taq polymerase-antibody interaction and using CCK-A and CCK-B receptor-specific primers, followed by Southern blot analysis, were the methods used. RESULTS: By means of Northern blots, CCK-A receptor mRNA was detected in rat fundus mucosa and pancreas but not in the remaining GI tract or brain. By means of RT-PCR, CCK-A receptor mRNA was demonstrated in the brain and the mucosa of the fundus, antrum, duodenum, and colon, kidney, pancreas and pancreatic islets. CCK-B receptor mRNA was detected by Northern blot analysis in the brain and the fundus mucosa but not in the rest of the digestive tract and not in the pancreas, pancreatic islets, or kidney. By RT-PCR, expression of CCK-B receptor mRNA could also be detected in antrum mucosa. In man, CCK-A receptor mRNA was detected in the brain, stomach, pancreas, and kidney, whereas CCK-B receptor mRNA was found in the brain, stomach, and pancreas but not in the kidney. Cloning and DNA-sequence analysis of the PCR-amplified rat and human CCK-A and CCK-B receptor DNA fragments, which cover the protein-encoding regions of the intracellular loop C3, showed complete sequence homology as compared with published rat and human sequences. CONCLUSIONS: It appears unlikely that CCK will have effects in the ileum, at least not effects mediated by CCK-A receptors. It also appears unlikely that physiologic concentrations of gastrin in the circulation will promote growth (or exert other effects) in the pancreas, duodenum, ileum, and colon, since CCK-B receptor mRNA is not expressed or is poorly expressed in these tissues.
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| 32. |
- Monte, L., et al.
(författare)
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The EVANET_HYDRA network: Introduction
- 2005
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Ingår i: Evaluation and nertwork of EC-decision support systems in the field of hydrological dispersion models and of aquatic radioecological research. - : ENEA, Rome. ; , s. 15-20
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Bokkapitel (refereegranskat)
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| 33. |
- Stenström, Mats, et al.
(författare)
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Methodologic aspects of computed microtomography to monitor the development of osteoporosis in gastrectomized rats
- 1995
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Ingår i: Academic Radiology. - 1076-6332. ; 2:9, s. 785-791
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Tidskriftsartikel (refereegranskat)abstract
- Rationale and Objectives We investigated the methodologic development of computed microtomography (CMT) for monitoring the development of osteoporosis in male Sprague-Dawley rats. Methods Eight rats were gastrectomized and eight rats were sham operated. Femurs, tibias, and tails were prepared, and CMT scans with spatial resolutions of 5–500 μm were made. Bone diameters, bone areas, and moments of inertia were determined from the CMT scans. Optimal slice position and the need for spatial resolution and energy optimization for future in vivo applications were investigated. Results Gastrectomy caused dramatic changes in the bone architecture of the tibia and the femur. The main features were vacuolization of the bone and reduced amounts of compact bone. Although the outer diameters of tubular bones (femur and tibia) were largely unaffected, their inner diameters were greatly increased following gastrectomy. Relative bone area and moment of inertia were greatly reduced. The optimal photon energy was 12 keV. Conclusion It is possible to monitor gastrectomy-evoked changes in bone morphology at various sites in rats using CMT scanning. The changes are suggestive of osteoporosis. By optimizing the energy spectrum and spatial resolution, as well as choosing the proper slice position, it should be possible to keep absorbed doses low enough to avoid acute radiation injury in repeated in vivo measurements.
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| 34. |
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| 35. |
- Törnblom, H., et al.
(författare)
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Gastroesofageal refluxsjukdom – gammal bekant med nya ansikten : Management of patients with gastroesophageal reflux disease can be optimized
- 2022
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Ingår i: Läkartidningen. - 0023-7205. ; 119
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Tidskriftsartikel (refereegranskat)abstract
- Gastroesophageal reflux disease (GERD) often requires lifelong treatment to return to and maintain a normal quality of life. Proton pump inhibitors (PPIs) offer effective medical treatment and can be used for a long time with good safety margins. The diagnostic criteria for GERD must be strictly based on current guidelines and the need for maintained treatment must be regularly evaluated. When medical treatment fails (> 20%), the patient should be offered a consultation with a specialist in the field. Too many patients who are currently treated with PPI for suspected GERD ultimately require treatment with a completely different diagnosis in focus. The investigation and treatment options are several and well-defined in the event of PPI failure in patients with well documented GERD. The indications for surgical treatment are well established, but this treatment option is likely underused today.
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| 36. |
- Vigen, R. A., et al.
(författare)
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Serum gastrin and gastric enterochromaffin-like cells during estrous cycle, pregnancy and lactation, and in response to estrogen-like agents in rats
- 2011
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Ingår i: Journal of Physiology and Pharmacology. - 0867-5910. ; 62:3, s. 335-340
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Tidskriftsartikel (refereegranskat)abstract
- Histamine-containing enterochromaffin-like (ECL) cells are numerous in the gastric mucosa. They operate under the. control of gastrin. ECL-cell tumors (gastric carcinoids) may arise as a consequence of sustained hypergastrinemia. For reasons unknown, such tumors have a female preponderance both in laboratory animals and humans. The present study consisted of four experiments exploring the possibility that gender-related factors might affect rat ECL cells. 1) A gender difference in terms of serum gastrin concentration and oxyntic mucosal histidine decarboxylase (HDC) activity appeared in Sprague-Dawley but not Wistar rats. Ultrastructural appearance of the ECL cells did not differ between genders. 2) During the different phases of the estrous cycle, the serum gastrin concentration, HDC activity and histamine concentration did not change. 3) During pregnancy, the serum gastrin concentration was suppressed, while it was increased during lactation. The HDC activity and the histamine concentration of the oxyntic mucosa were correlated with the levels of circulating gastrin. 4) Twelve-month treatment with estrogen-like agents, dieldrin and/or toxaphene (alone or in combination) was without any effect on the ECL cells neither in male nor in female rats. In conclusion, the ECL cells are under the control of gastrin, but probably not hormones that involve in the estrous cycle and pregnancy and lactation in rats. Possible gender-related factors behind the female preponderance of ECL-cell tumors remain unknown.
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| 37. |
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| 38. |
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| 39. |
- Zellin, G, et al.
(författare)
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Gastrectomy has no effect on bone regeneration in rats despite a decrease in bone mass
- 2002
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Ingår i: Scandinavian Journal of Gastroenterology. - 1502-7708. ; 37:10, s. 1149-1155
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Tidskriftsartikel (refereegranskat)abstract
- Background: Gastrectomy, specifically the removal of the acid-producing part of the stomach (fundectomy), is known to cause osteopenia. This effect has been ascribed to the elimination of a hypothetical osteotropic peptide hormone, presumably produced in the oxyntic mucosa. Since osteopenia is due to a disturbed balance between bone formation and resorption, we assessed the effect of gastrectomy on osteogenesis, more specifically mandibular orthotopic bone regeneration. Methods: Adult rats were either gastrectomized or sham-operated. Two weeks later, unilateral 5-mm transosseous defects were made in the mandibles and covered with microporous barrier membranes (GORE-TEX(R) Membrane). After 6 weeks of healing, bone-bridging of the defects was analyzed by computerized light microscopic image analysis. Furthermore, bone mass was analyzed in the contralateral untreated mandibular side, in calvaria l bone, and in femora by morphometry and dry/ash weights. Results: While gastrectomy resulted in a clearly decreased bone mass, manifested as increased marrow spaces in all bones and as decreased dry and ash weights in femora, no difference in mandibular bone healing rate was found between the groups. Conclusions: Since secluding of the defect space by membrane barriers implies that osteogenic cells have to be recruited primarily from intra-osseous stem cells by their proliferation and differentiation into actively bone-forming osteoblasts, the results indicate that gastrectomy has no effect on these processes. The findings thus imply that the disturbed balance in bone remodeling caused by gastrectomy, resulting in osteopenia, may be due to stimulated bone resorption rather than to reduced bone formation.
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| 40. |
- Zhao, CM, et al.
(författare)
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Histamine and histidine decarboxylase are hallmark features of ECL cells but not G cells in rat stomach
- 2004
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Ingår i: Regulatory Peptides. - : Elsevier BV. - 1873-1686 .- 0167-0115. ; 118:1-2, s. 61-66
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Tidskriftsartikel (refereegranskat)abstract
- The oxyntic mucosa of the rat stomach is rich in ECL cells which produce and secrete histamine in response to gastrin. Histamine and the histamine-forming enzyme histidine decarboxylase (HDC) have been claimed to occur also in the gastrin-secreting G cells in the antrum. In the present study, we used a panel of five HDC antisera and one histamine antiserum to investigate whether histamine and HDC are exclusive to the ECL cells. By immunocytochemistry, we could show that the ECL cells were stained with the histamine antiserum and all five HDC antisera. The G cells, however, were not stained with the histamine antiserum, but with three of the five HDC antisera. Thus, histamine and HDC coexist in the ECL cells (oxymic mucosa) but not in G cells (antral mucosa). Western blot analysis revealed a typical pattern of HDC-immunoreactive bands (74, 63 and 54 kDa) in oxymic mucosa extracts with all five antisera. In antral extracts, immunoreactive bands were detected with three of the five HDC antisera (same as above); the pattern of immunoreactivity differed from that in oxymic mucosa. Food intake or treatment with the proton pump inhibitor omeprazole raised the HDC activity and the HDC protein content of the oxyntic mucosa but not of the antral mucosa; the HDC activity in the antrum was barely detectable. We suggest that the HDC-like immunoreactivity in the antrum represents a cross-reaction with non-HDC proteins and conclude that histamine and HDC are hallmark features of ECL cells but not of G cells. (C) 2003 Elsevier B.V. All rights reserved.
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| 41. |
- Öhlén, Joakim, 1958, et al.
(författare)
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Symptom alleviation profiles during the last week of life. A register based quality of end-of-life study
- 2015
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Ingår i: International Society for Quality of Life Research 22nd Annual Conference. October 21-24, Vancouver, Canada.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Aims: To examine symptom alleviation profiles as quality indicators that reflect care and wellbeing of patients during the last week of life and improve understanding of patterns. Methods: A cross-sectional design was chosen using data from the Swedish Palliative Care Registry, a national register for all deaths that contains professionals’ retrospectively-reported data about quality indicators reflecting care and wellbeing of patients during the last week of life. All deceased adults (>18 years) with expected deaths, registered in the register in 2012 and 2013 (approximately 60% of the total death population in Sweden each year) were included. Descriptive statistical analysis of the sample and a preliminary latent class analysis have been performed to identify symptom alleviation profiles, including alleviation of pain, nausea, anxiety, shortness of breath, confusion, and breathing rattles. Analyses of demographic and health-related characteristics predictive of latent class membership are ongoing. Results: 38766 men and 49117 women were included. 65% were 18-59 years of age, 19.0% were 60-79 years of age, and 16.0% were 80-110 years of age. Neoplasms (36.7%), cardiovascular diseases (31.1 %) and dementia (12.4%) were the most common underlying causes of death. Nursing home (39,7%), hospital wards (27,7%), hospice and specialised palliative care in-patient units (11,5%), municipality short-term facilities (8,8%) and specialised palliative home care (6,8%) were the most common locations of care. The most frequent symptoms were pain (70.9%), breathing rattles (52.4%), anxiety (46.1%), confusion (29.0%), and shortness of breath (25.2%). Total symptom relief was reported for 52.4% of patients experiencing pain, 23.7% of those experiencing breathing rattles, 8.5% of those experiencing anxiety, 5.1% experiencing confusion and 9.0% experiencing breathlessness. Preliminary results suggest 5 latent classes that represent unique symptom alleviation profiles, with class sizes ranging from 9% to 33%. Conclusion: Symptom alleviation is a quality indicator for palliative care that is of significant importance to the wellbeing of people during their last week of life. A better understanding of profiles and predictors of symptom alleviation can inform the development of care quality for the purpose of enhanced quality of end-of-life across different diagnoses and locations of care.
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