Academic interests
See below - teaching
Courses taught
- Lectures at Medical faculty, for 1. and 3. semester medical, dentistry and nutrition students on the following topics: procreation of various species and the reproductive system in man; stem cells and the generation and function of haemic cells; inflammation; defence mechanisms of the respiratory tract
- Lectures and case discussion in basic PhD course at Medical faculty: research planning, check list and methods in basic medical research; ethics and fraud in science
Background
- 2010: Professor emeritus
- 1990: Professor of Medicine (Cell Physiology)
- 1983 – 2003: Annual courses for PhD students in the basics of the biomedical research process (with Dr. J.-G. Iversen)
- 1983 – ca. 2000: Medical faculty consultant on university pedagogics, practical aspects of teaching in medical school
- 1972: PhD (UiO) with thesis “Murine haematopoiesis studied with the diffusion chamber technique”
- 1965: MD University of Oslo (UiO)
- 2006 – 09: Elected Pro-Rector University of Oslo
Collaboration
- Colaboration with Professor Bent Rolstad, Immunebiological lab, Dept. of anatomy, Inst. of Basic Medical Sciences
Tags:
Blood and immunology,
Research ethics,
Stem cells
Publications
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Benestad, Haakon Breien
(2024).
Usikker effekt av psilocybin ved anoreksi.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
144(1),
p. 1–3.
doi:
10.4045/tidsskr.23.0734.
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Benestad, Haakon Breien
(2020).
Celler kan gjenkjenne bakteriesignaler.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
140(8),
p. 1–2.
doi:
10.4045/tidsskr.20.0173.
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Benestad, Haakon Breien
(2020).
Meslinger bryter ned immunitet mot andre infeksjoner.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
140(2).
doi:
10.4045/tidsskr.19.0775.
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Benestad, Haakon Breien
(2020).
Trådløs overvåking av premature.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
140(9),
p. 1–2.
doi:
10.4045/tidsskr.20.0300.
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Benestad, Haakon Breien
(2020).
Granulocytter kan fremme virusinfeksjon.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
140(18).
doi:
10.4045/tidsskr.20.0880.
-
Aas, Sigve Nyvik; Tømmerbakke, Daniel; Godager, Sindre; Nordseth, Martin; Armani, Andrea & Sandri, Marco
[Show all 8 contributors for this article]
(2020).
Effects of acute and chronic strength training on skeletal muscle autophagy in frail elderly men and women.
Experimental Gerontology.
ISSN 0531-5565.
142:111122,
p. 1–13.
doi:
10.1016/j.exger.2020.111122.
Full text in Research Archive
Show summary
Aging is associated with alterations in skeletal muscle autophagy, potentially affecting both muscle mass and quality in a negative manner. Strength training with protein supplementation has been reported to improve both muscle mass and quality in frail elderly individuals, but whether improvements are accompanied by alterations in protein quality control is not known. To address this issue, we investigated protein degradation markers in skeletal muscle biopsies (m. vastus lateralis) from twenty-four frail elderly men and women (86 ± 7 yr) after acute and chronic (10 weeks) strength training with protein supplementation (ST + PRO) or protein supplementation alone (PRO). Acute increases in mRNA expression of genes related to the ubiquitin proteasome system (MuRF-1, MUSA1), autophagy (ATG7, LC3, p62), and mitochondrial fission (DRP1) were observed after the first, but not after the last training session in ST + PRO. Acute changes in gene expression were accompanied by changes in protein levels of both LC3-I and LC3-II. Hence, the acute training-induced activation of proteasomal degradation and autophagy seems to depend on training status, with activation in the untrained, but not trained state. The ten-week training intervention did not affect basal levels of autophagy mRNAs and proteins, and neither markers of the ubiquitin-proteasome system. This suggests that a relatively short period of strength training may not be sufficient to increase the basal rate of protein degradation in frail elderly.
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Benestad, Haakon Breien
(2020).
Fibrosen rundt implantater kan hemmes.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
140(12),
p. 1–2.
doi:
10.4045/tidsskr.20.0504.
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Benestad, Haakon Breien
(2020).
Nyoppdaget mekanisme for luktpersepsjon.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
140(12),
p. 1–2.
doi:
10.4045/tidsskr.20.0517.
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Benestad, Haakon Breien
(2019).
Kan serum fra unge «friske opp» hjernen hos eldre?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
139(16).
doi:
10.4045/tidsskr.19.0561.
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Benestad, Haakon Breien
(2019).
Kulde gir epigenetiske endringer i spermier.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
139(1).
doi:
10.4045/tidsskr.18.0866.
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Benestad, Haakon Breien
(2019).
Tolkning av EKG med kunstig intelligens.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
139(6).
doi:
10.4045/tidsskr.19.0119.
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Benestad, Haakon Breien
(2019).
DNA-endringer etter lange opphold i verdensrommet.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
139(14).
doi:
10.4045/tidsskr.19.0469.
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Benestad, Haakon Breien
(2019).
Humane pancreasceller kan endres til insulinproduserende celler i mus.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
139(8).
doi:
10.4045/tidsskr.19.0236.
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Benestad, Haakon Breien
(2019).
Anti-IL-23-antistoffer mot prostatakreft?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
139(2).
doi:
10.4045/tidsskr.18.0873.
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Paulsen, Gøran & Benestad, Haakon Breien
(2019).
Muskelstolhet og rabdomyolyse.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
139(10).
doi:
10.4045/tidsskr.18.0727.
Show summary
In this clinical review, we propose an alternative mechanism for the pain associated with muscle soreness and compare it to the mechanisms underlying muscle injuries and rhabdomyolysis. This is based on our own experience of research in the field, as well as recent cellular and molecular studies in animal models selected from our personal archives and identified through unstructured searches.
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Hamarsland, Håvard; Johansen, Mathias K.; Seeberg, Fridtjof S.; Brochmann, Marie; Garthe, Ina & Benestad, Haakon Breien
[Show all 7 contributors for this article]
(2019).
Native Whey Induces Similar Adaptation to Strength Training as Milk, despite Higher Levels of Leucine, in Elderly Individuals.
Nutrients.
ISSN 2072-6643.
11(9).
doi:
10.3390/nu11092094.
Full text in Research Archive
Show summary
Background: Large amounts of protein (40 g) or supplementing suboptimal servings of protein with leucine are able to overcome the anabolic resistance in elderly muscle. Our aim was to compare the effects of supplementation of native whey, high in leucine, with milk on gains in muscle mass and strength during a period of strength training, in elderly individuals. Methods: In this double-blinded, randomized, controlled study, a total of 30 healthy men and women received two daily servings of 20 g of either milk protein or native whey, during an 11-week strength training intervention. Muscle strength, lean mass, m. vastus lateralis thickness, muscle fiber area, and resting and post-exercise phosphorylation of p70S6K, 4E-BP1, and eEF-2 were assessed prior to and after the intervention period. Results: Muscle mass and strength increased, by all measures applied in both groups (p < 0.001), with no differences between groups (p > 0.25). p70S6K phosphorylation increased (~1000%, p < 0.045) 2 h after exercise in the untrained and trained state, with no differences between supplements. Total and phosphorylated mTORC-1 decreased after training. Conclusion: Supplementation with milk or native whey during an 11-week strength training period increased muscle mass and strength similarly in healthy elderly individuals.
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Aas, Sigve Nyvik; Seynnes, Olivier R.; Benestad, Haakon Breien & Raastad, Truls
(2019).
Strength training and protein supplementation improve muscle mass, strength, and function in mobility-limited older adults: a randomized controlled trial.
Aging Clinical and Experimental Research.
ISSN 1594-0667.
doi:
10.1007/s40520-019-01234-2.
Full text in Research Archive
Show summary
Background Adaptation to strength training in very old mobility-limited individuals is not fully characterized. Therefore, the aim of this study was to perform a thorough investigation of the adaptation to a lower body strength training regime in this population, with particular emphasis on the relationship between changes in selected variables.MethodsTwenty-two mobility-limited older men and women (85 ± 6 years) were randomized to either a group performing 30 min of heavy-load strength training three times a week, with daily protein supplementation, for 10 weeks (ST), or a control group. End points were leg lean mass assessed by DXA, muscle thickness assessed by ultrasound, isometric and dynamic strength, rate of torque development, and functional capacity.ResultsLeg lean mass increased from baseline in ST (0.7 ± 0.3 kg), along with increased thickness of vastus lateralis (4.4 ± 3.2%), rectus femoris (6.7 ± 5.1%), and vastus intermedius (5.8 ± 5.9%). The hypertrophy was accompanied by improved knee extensor strength (20–23%) and functional performance (7–11%). In ST, neither the change in leg lean mass nor muscle thickness correlated with changes in muscle strength. However, a strong correlation was observed between the change in isometric strength and gait velocity (r = 0.70).ConclusionsThe mismatch between gains in muscle size and strength suggests that muscle quality-related adaptations con-tributed to the increases in strength. The correlations observed between improvements in strength and function suggests that interventions eliciting large improvements in strength may also be superior in terms of functional gains in this population.
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Hamarsland, Håvard; Handegard, Vilde; Kåshagen, Mauritz; Benestad, Haakon Breien & Raastad, Truls
(2019).
No Difference Between Spray Dried Milk and Native Whey Supplementation with Strength Training.
Medicine & Science in Sports & Exercise.
ISSN 0195-9131.
51(1),
p. 75–83.
doi:
10.1249/MSS.0000000000001758.
Full text in Research Archive
Show summary
Background: A rapid digestibility and high leucine content are considered important for maximal
stimulation of muscle protein synthesis. Consequently, with these properties, native whey may
hold greater anabolic potential than milk, when supplemented in combination with strength
training. Our aim was to compare the effects of supplementation with milk or native whey,
during a 12-week strength training period, on gains in muscle mass and strength in young adults.
Methods: In this double-blinded, randomized, controlled study a total of 40 untrained young men
and women received two daily servings of either milk or native whey containing 20 g of protein,
during a 12-week strength training intervention. Muscle strength, lean mass, thigh muscle cross
sectional area, m. vastus lateralis thickness and muscle fiber cross sectional area were assessed
before and after the training period. In addition, the acute phosphorylation of the anabolic
kinases p70S6K, 4E-BP1 and eEF-2 in response to a standardized workout and supplementation
was investigated before and after the 12-week training period.
Results: Muscle mass and strength increased, by all measures applied (5-16%, P < 0.001), with
no differences between groups (P > 0.25). p70S6K phosphorylation increased (~1000%, P <
0.02) 2 hours after exercise in the untrained and trained state, but no differences in anabolic
signaling were observed between supplements (P > 0.40). No correlation between these acute
measures and changes in muscle mass or strength were observed.
Conclusion: Supplementation with milk or native whey during a 12-week strength training
period did not differentially affect muscle mass and strength in young untrained individuals.
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Hamarsland, Håvard; Aas, Sigve Nyvik; Nordengen, Anne Lene; Holte, Kari; Garthe, Ina & Paulsen, Gøran
[Show all 10 contributors for this article]
(2018).
Native whey induces similar post exercise muscle anabolic responses as regular whey, despite greater leucinemia, in elderly individuals.
The Journal of Nutrition, Health & Aging.
ISSN 1279-7707.
doi:
10.1007/s12603-018-1105-6.
Full text in Research Archive
Show summary
Objective:
Elderly muscle seems less sensitive to the anabolic stimulus of a meal. Changes in blood concentrations of leucine are suggested as one important trigger of the anabolic response in muscle. The aim of this study was to investigate whether native whey protein, containing high amounts of leucine, may be a more potent stimulator of muscle protein synthesis (MPS) in elderly than regular whey protein (WPC-80) or milk.
Design:
Randomized controlled partial crossover.
Setting:
Norwegian School of Sport Sciences.
Participants:
21 healthy elderly men and women (≥70 years).
Intervention:
Participants received either 20 g of WPC-80 and native whey (n = 11) on separate days in a crossover design, or milk (n = 10). Supplements were ingested immediately and two hours after a bout of lower body heavy-load resistance exercise.
Measurements:
Blood samples and muscle biopsies were collected to measure blood concentrations of amino acids by gas-chromatography mass spectrometry (GCMS), phosphorylation of p70S6K, 4E-BP1 and eEF-2 by immunoblotting and mixed muscle fractional synthetic rate (FSR) by use of [2H5]phenylalanine-infusion, GCMS and isotope-ratio mass spectrometry.
Results:
Native whey increased blood leucine concentrations more than WPC-80 (P < 0.05), but not p70S6K phosphorylation or mixed muscle FSR. Both whey supplements increased blood leucine concentrations (P < 0.01) and P70S6K phosphorylation more than milk (P = 0.014). Native whey reached higher mixed muscle FSR values than milk (P = 0.026) 1-3h after exercise.
Conclusions:
Despite greater increases in blood leucine concentrations than WPC-80 and milk, native whey was only superior to milk concerning increases in MPS and phosphorylation of P70S6K during a 5-hour post-exercise period in elderly individuals.
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Benestad, Haakon Breien
(2017).
Genmodifiserte T-celler mot kreft.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
137(10).
doi:
10.4045/tidsskr.17.0321.
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Hamarsland, Håvard; Nordengen, Anne Lene; Aas, Sigve Nyvik; Holte, Kristin Tosterud; Garthe, Ina & Paulsen, Gøran
[Show all 10 contributors for this article]
(2017).
Native whey protein with high levels of leucine results in similar post-exercise muscular anabolic responses as regular whey protein: a randomized controlled trial.
Journal of the International Society of Sports Nutrition (JISSN).
ISSN 1550-2783.
14:43,
p. 1–12.
doi:
10.1186/s12970-017-0202-y.
Show summary
Background:
Protein intake is essential to maximally stimulate muscle protein synthesis, and the amino acid leucine seems to possess a superior effect on muscle protein synthesis compared to other amino acids. Native whey has higher leucine content and thus a potentially greater anabolic effect on muscle than regular whey (WPC-80). This study compared the acute anabolic effects of ingesting 2 × 20 g of native whey protein, WPC-80 or milk protein after a resistance exercise session.
Methods:
A total of 24 young resistance trained men and women took part in this double blind, randomized, partial crossover, controlled study. Participants received either WPC-80 and native whey (n = 10), in a crossover design, or milk (n = 12). Supplements were ingested immediately (20 g) and two hours after (20 g) a bout of heavy-load lower body resistance exercise. Blood samples and muscle biopsies were collected to measure plasma concentrations of amino acids by gas-chromatography mass spectrometry, muscle phosphorylation of p70S6K, 4E–BP1 and eEF-2 by immunoblotting, and mixed muscle protein synthesis by use of [2H5]phenylalanine-infusion, gas-chromatography mass spectrometry and isotope-ratio mass spectrometry. Being the main comparison, differences between native whey and WPC-80 were analysed by a one-way ANOVA and comparisons between the whey supplements and milk were analysed by a two-way ANOVA.
Results:
Native whey increased blood leucine concentrations more than WPC-80 and milk (P < 0.05). Native whey ingestion induced a greater phosphorylation of p70S6K than milk 180 min after exercise (P = 0.03). Muscle protein synthesis rates increased 1–3 h hours after exercise with WPC-80 (0.119%), and 1–5 h after exercise with native whey (0.112%). Muscle protein synthesis rates were higher 1–5 h after exercise with native whey than with milk (0.112% vs. 0.064, P = 0.023).
Conclusions:
Despite higher-magnitude increases in blood leucine concentrations with native whey, it was not superior to WPC-80 concerning effect on muscle protein synthesis and phosphorylation of p70S6K during a 5-h post-exercise period. Native whey increased phosphorylation of p70S6K and muscle protein synthesis rates to a greater extent than milk during the 5-h post exercise period.
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Nilsen, Tormod Skogstad; Thorsen, Lene; Fosså, Sophie Dorothea; Wiig, Martin; Kirkegaard, Camilla & Skovlund, Eva
[Show all 8 contributors for this article]
(2016).
Effects of strength training on muscle cellular outcomes in prostate cancer patients on androgen deprivation therapy.
Scandinavian Journal of Medicine & Science in Sports.
ISSN 0905-7188.
26(9),
p. 1026–1035.
doi:
10.1111/sms.12543.
Show summary
Androgen deprivation therapy (ADT) improves lifeexpectancy in prostate cancer (PCa) patients, but is asso-ciated with adverse effects on muscle mass. Here, weinvestigated the effects of strength training during ADTon muscle fiber cross-sectional area (CSA) and regulatorsof muscle mass. PCa patients on ADT were randomizedto 16 weeks of strength training (STG) (n = 12) or acontrol group (CG; n = 11). Muscle biopsies wereobtained from m. vastus lateralis and analyzed by immu-nohistochemistry and western blot. Muscle fiber CSAincreased with strength training (898 μm2, P = 0.04), withthe only significant increase observed in type II fibers(1076 μm2, P = 0.03). There was a trend toward a differ-ence in mean change between groups myonuclei number(0.33 nuclei/fiber, P = 0.06), with the only significantincrease observed in type I fibers, which decreased themyonuclear domain size of type I fibers (P = 0.05). Satel-lite cell numbers and the content of androgen receptorand myostatin remained unchanged. Sixteen weeks ofstrength training during ADT increased type II fiber CSAand reduced myonuclear domain in type I fibers in PCapatients. The increased number of satellite cells normallyseen following strength training was not observed.
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Knudsen, Eirunn; Carlsen, Harald; Bøyum, Arne; Benestad, Haakon Breien & Iversen, Per Ole
(2014).
No major role for the transcription factor NF-κB in bone marrow function during peritonitis in the mouse.
International journal of hematology.
ISSN 0925-5710.
100(2),
p. 111–118.
doi:
10.1007/s12185-014-1598-7.
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Paulsen, Gøran; Cumming, Kristoffer T.; Holden, Geir; Hallén, Jostein; Rønnestad, Bent & Sveen, Ole
[Show all 19 contributors for this article]
(2014).
Vitamin C and E supplementation hampers cellular adaptation to endurance training in humans: a double-blind randomized controlled trial.
Journal of Physiology.
ISSN 0022-3751.
592(8),
p. 1887–1901.
doi:
10.1113/jphysiol.2013.267419.
Show summary
In this double-blind, randomised, controlled trial, we investigated the effects of vitamin C and E supplementation on endurance training adaptations in humans. Fifty-four young men and women were randomly allocated to receive either 1000 mg of vitamin C and 235 mg of vitamin E or a placebo daily for 11 weeks. During supplementation, the participants completed an endurance training programme consisting of three to four sessions per week (primarily of running), divided into high-intensity interval sessions [4-6 × 4-6 min; >90% of maximal heart rate (HRmax)] and steady state continuous sessions (30-60 min; 70-90% of HRmax). Maximal oxygen uptake (VO2 max ), submaximal running and a 20 m shuttle run test were assessed and blood samples and muscle biopsies were collected, before and after the intervention. Participants in the vitamin C and E group increased their VO2 max (mean ± s.d.: 8 ± 5%) and performance in the 20 m shuttle test (10 ± 11%) to the same degree as those in the placebo group (mean ± s.d.: 8 ± 5% and 14 ± 17%, respectively). However, the mitochondrial marker cytochrome c oxidase subunit IV (COX4) and cytosolic peroxisome proliferator-activated receptor-γ coactivator 1 α (PGC-1α) increased in the m. vastus lateralis in the placebo group by 59 ± 97% and 19 ± 51%, respectively, but not in the vitamin C and E group (COX4: -13 ± 54%; PGC-1α: -13 ± 29%; P ≤ 0.03, between groups). Furthermore, mRNA levels of CDC42 and mitogen-activated protein kinase 1 (MAPK1) in the trained muscle were lower in the vitamin C and E group than in the placebo group (P ≤ 0.05). Daily vitamin C and E supplementation attenuated increases in markers of mitochondrial biogenesis following endurance training. However, no clear interactions were detected for improvements in VO2 max and running performance. Consequently, vitamin C and E supplementation hampered cellular adaptations in the exercised muscles, and although this did not translate to the performance tests applied in this study, we advocate caution when considering antioxidant supplementation combined with endurance exercise.
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Aas, Vigdis; Sand, Kristin Larsen; Åsheim, Hans-Christian; Benestad, Haakon Breien & Iversen, Jens Gustav Heber
(2013).
C-Reactive Protein Triggers Calcium Signalling in Human Neutrophilic Granulocytes via FcγRIIa in an Allele-Specific Way.
Scandinavian Journal of Immunology.
ISSN 0300-9475.
77(6),
p. 442–451.
doi:
10.1111/sji.12049.
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Knudsen, Eirunn; Iversen, Per Ole; Bøyum, Arne; Seierstad, Therese; Nicolaysen, Gunnar & Benestad, Haakon Breien
(2011).
G-CSF enhances proliferation and mobilization, but not the maturation rate, of murine myeloid cells.
European Journal of Haematology.
ISSN 0902-4441.
87(4),
p. 302–311.
doi:
10.1111/j.1600-0609.2011.01658.x.
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Paulsen, Gøran; Egner, Ingrid; Drange, Mads; Langberg, Henning; Benestad, Haakon Breien & Fjeld, Jan Gunnar
[Show all 8 contributors for this article]
(2010).
A COX-2 inhibitor reduces muscle soreness, but does not influence recovery and adaptation after eccentric exercise.
Scandinavian Journal of Medicine & Science in Sports.
ISSN 0905-7188.
20(1, online).
Show summary
The aim of this study was to investigate the effect of a cyclooxygenase (COX)-2 inhibitor on the recovery of muscle function, inflammation, regeneration after, and adaptation to, unaccustomed eccentric exercise. Thirty-three young males and females participated in a double-blind, placebo-controlled experiment. Seventy unilateral, voluntary, maximal eccentric actions with the elbow flexors were performed twice (bouts 1 and 2) with the same arm, separated by 3 weeks. The test group participants were administered 400 mg/day of celecoxib for 9 days after bout 1. After both bouts 1 and 2, concentric and isometric force-generating capacity was immediately reduced ( approximately 40-50%), followed by the later appearance of muscle soreness and increased serum creatine kinase levels. Radiolabelled autologous leukocytes (detected by scintigraphy) and monocytes/macrophages (histology) accumulated in the exercised muscles, simultaneously with increased satellite cell activity. These responses were reduced and recovery was faster after bout 2 than 1, demonstrating a repeated-bout effect. No differences between the celecoxib and placebo groups were detected, except for muscle soreness, which was attenuated by celecoxib. In summary, celecoxib, a COX-2 inhibitor, did not detectably affect recovery of muscle function or markers of inflammation and regeneration after unaccustomed eccentric exercise, nor did the drug influence the repeated-bout effect. However, it alleviated muscle soreness.
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Paulsen, Gøran; Crameri, R; Benestad, Haakon Breien; Fjeld, Jan Gunnar; Mørkrid, Lars & Hallén, Jostein
[Show all 7 contributors for this article]
(2010).
Time Course of Leukocyte Accumulation in Human Muscle after Eccentric Exercise.
Medicine & Science in Sports & Exercise.
ISSN 0195-9131.
42(1),
p. 75–85.
doi:
10.1249/MSS.0b013e3181ac7adb.
Show summary
PAULSEN. G., R. CRAMERI, H. B. BENESTAD, J. G. HELD. L. MORKRID, J. HALLEN, and T. RAASTAD. Time course of Leukocyte Accumulation in Human Muscle after Eccentric Exercise. Med. Sci. Sports Exerc., Vol. 42, No. 1, pp. 75-85, 2010. Put-pose: To investigate the little course of leukocyte accumulation in eccentric exercised human muscles and its relation to recovery of muscle function and soreness. Methods: Eleven young males performed 300 unilateral. maximal voluntary, eccentric actions with the musculus quadriceps femoris (30 degrees.s(-1)). Before and at regular intervals for 7 d after exercise, force-generating capacity was measured with maximal concentric knee extensions (60 degrees.s(-1)). Accumulation of radiolabeled (autologous) leukocytes was measured with scintigraphy. Biopsies from musculus vastus lateralis were obtained 0.5, 4, 8, 24, 96, and 168 It after exercise from both the exercised leg and the control leg. Muscle cross-sections were stained with antibodies against leukocytes (CD16 and CD68). Muscle soreness was rated oil a visual analog scale. Results: Immediately after exercise, the Subjects' ability to generate force was reduced by 47 +/- 5%. Muscle function recovered slowly and was not fully restored after 1 wk. Radiolabeled leukocytes accumulated ill file Muscles during the first hour (3-24 h) after exercise, and leukocytes were at the same time observed histologically. primarily in the endomysium and perimysium. A pail of the accumulated radiolabeled leukocytes appeared to be located within local blood vessels. The highest numbers of CD16(+) and CD68(+) cells were found 4 and 7 (1 after exercise. There was a positive correlation between accumulation of radiolabeled leukocytes and muscle weakness measured 1-3 d after exercise (r = 0.8. P < 0.05) and, surprisingly. a negative correlation between radiolabeled leukocyte accumulation and Muscle soreness (r = -0.96, P < 0.01). Conclusion: Exercise-induced Muscle damage initiated a rapid local inflammatory response that gradually increased over the next days, Halted recovery Of muscle function Was associated with local accumulation of leukocytes, whereas muscle soreness could not be explained by the presence of leukocytes.
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Benestad, Haakon Breien & Laake, Petter
(2008).
Forskning: metode og planlegging.
In Laake, Petter; Benestad, Haakon Breien & Olsen, Bjørn Reino (Ed.),
Forskning i medisin og biofag. 2. utgave.
Gyldendal Akademisk.
ISSN 978-82-05-38487-3.
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Nestvold, Janne M.; Omdal, Bente Kahrs; Dai, K-Z; Martens, A; Benestad, Haakon Breien & Vaage, John Torgils
[Show all 7 contributors for this article]
(2008).
A second prophylactic MHC-mismatched bone marrow transplantation protects against rat acute myeloid leukemia (BNML) without lethal graft-versus-host disease.
Transplantation.
ISSN 0041-1337.
85(1),
p. 102–111.
doi:
10.1097/01.tp.0000296856.53493.1f.
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Benestad, Haakon Breien & Laake, Petter
(2007).
Reseach methodology: Strategies, planning and analysis.
In Laake, Petter; Benestad, Haakon Breien & Olsen, Bjørn Reino (Ed.),
Research Methodology in the Medical and Biological Sciences.
Academic Press.
ISSN 978-0-12-373874-5.
p. 93–124.
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Paulsen, Gøran; Benestad, Haakon Breien; Strøm-Gundersen, Inger; Mørkrid, Lars; Lappegård, Knut Tore & Raastad, Truls
(2005).
Delayed Leukocytosis and Cytokine Response to High-Force Eccentric Exercise.
Medicine & Science in Sports & Exercise.
ISSN 0195-9131.
37(11),
p. 1877–1883.
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Benestad, Haakon Breien
(2004).
Vitenskapelig kommunikasjon.
In Benestad, Haakon Breien & Laake, Petter (Ed.),
Forskningsmetode i medisin og biofag.
Gyldendal Akademisk.
p. 413–443.
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Benestad, Haakon Breien & Laake, Petter
(2004).
Forskning: Metode og planlegging.
In Benestad, Haakon Breien & Laake, Petter (Ed.),
Forskningsmetode i medisin og biofag.
Gyldendal Akademisk.
p. 83–113.
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Benestad, Haakon Breien
(2004).
Basalmedisinsk forskning: Strategier og metoder.
In Benestad, Haakon Breien & Laake, Petter (Ed.),
Forskningsmetode i medisin og biofag.
Gyldendal Akademisk.
p. 199–214.
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Benestad, Haakon Breien & Laake, Petter
(2004).
Forord.
In Benestad, Haakon Breien & Laake, Petter (Ed.),
Forskningsmetode i medisin og biofag.
Gyldendal Akademisk.
p. 5–7.
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Olsen, Bjørn Reino & Benestad, Haakon Breien
(2004).
Basalmedisinsk forskning: strategier og metoder.
In Benestad, Haakon Breien & Laake, Petter (Ed.),
Forskningsmetode i medisin og biofag.
Gyldendal Akademisk.
p. 199–214.
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Knudsen, Eirunn; Benestad, Haakon Breien; Seierstad, Therese & Iversen, Per Ole
(2004).
Macrophages in spleen and liver direct the migration pattern of rat neutrophils during inflammation.
European Journal of Haematology.
ISSN 0902-4441.
73,
p. 109–122.
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Iversen, Per Ole; Nicolaysen, Anne; Hjeltnes, Nils; Njå, Arild & Benestad, Haakon Breien
(2004).
Preserved granulocyte formation and function, as well as bone marrow innervation, in subjects with complete spinal cord injury.
British Journal of Haematology.
ISSN 0007-1048.
126,
p. 870–877.
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Bøyum, Arne; Fjerdingstad, HB; Tennfjord, VA; Benestad, Haakon Breien & Lovhaug, D
(2004).
Specific antibodies to mouse Sca-1- (Ly-6A/E) or Thy-1-positive haematopoietic progenitor cells induce formation of nitric oxide which inhibits subsequent colony formation.
European Journal of Haematology.
ISSN 0902-4441.
73,
p. 427–430.
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Benestad, Haakon Breien
(2016).
Et eventyrlig liv.
Hans Landstad (1880-1957): sort får, seilskipsmannskap og sjefskonstruktør.
Michael - Det norske medisinske selskaps tidsskrift.
ISBN 978-82-92871-88-1.
194 p.
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Laake, Petter; Benestad, Haakon Breien & Olsen, Bjørn Reino
(2015).
Research in Medical and Biological Sciences: From Planning and Preparation ot Grant Application and Publication.
Academic Press.
ISBN 978-0-12-799943-2.
566 p.
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Laake, Petter; Benestad, Haakon Breien & Olsen, Bjørn Reino
(2008).
Forskning i medisin og biofag. 2. utgave.
Gyldendal Akademisk.
ISBN 978-82-05-38487-3.
550 p.
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Laake, Petter; Benestad, Haakon Breien & Olsen, Bjørn Reino
(2007).
Research Methodology in the Medical and Biological Sciences.
Academic Press.
ISBN 978-0-12-373874-5.
512 p.
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Benestad, Haakon Breien
(2023).
Semaglutid gir både vekttap og mindre hjertesviktsymptomer.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
143(17).
doi:
10.4045/tidsskr.23.0682.
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Benestad, Haakon Breien
(2023).
Kan aversjon mot mat forebygge allergiske reaksjoner?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
143(15),
p. 1–2.
doi:
10.4045/tidsskr.23.0617.
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Benestad, Haakon Breien
(2023).
Kan høyt inntak av frukt og grønnsaker forsinke kognitiv aldring?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
143(13).
doi:
10.4045/tidsskr.23.0470.
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Benestad, Haakon Breien
(2023).
Immobilisering uten dyp venetrombose?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
143(11).
doi:
10.4045/tidsskr.23.0404.
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Benestad, Haakon Breien
(2023).
Kan hjertet trigge følelser?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
143(10).
doi:
10.4045/tidsskr.23.0312.
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Benestad, Haakon Breien
(2023).
Hvordan få nok humane stamceller til klinisk bruk?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
143(9).
doi:
10.4045/tidsskr.23.0274.
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Benestad, Haakon Breien
(2023).
Genredigering mot hjertesykdom?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
143(6).
doi:
10.4045/tidsskr.23.0126.
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Benestad, Haakon Breien
(2023).
Hjertesvikt kan påvises med en smartklokke.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
143(4).
doi:
10.4045/tidsskr.23.0030.
-
Benestad, Haakon Breien
(2023).
Humane nerveceller integrert i skadet rottehjerne.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
143(7).
doi:
10.4045/tidsskr.23.0217.
-
Benestad, Haakon Breien
(2023).
En vaksine mot alle kjente influensatyper.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
143(3).
doi:
10.4045/tidsskr.22.0812.
-
Benestad, Haakon Breien
(2023).
Aldringsprosesser påvirkes av immunregulering.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
143(5).
doi:
10.4045/tidsskr.23.0071.
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Benestad, Haakon Breien
(2022).
En vei mot nye og bedre analgetika?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
142(18).
doi:
10.4045/tidsskr.22.0723.
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Benestad, Haakon Breien
(2022).
Lydsignaler kan dempe smerte.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
142(16),
p. 1–2.
doi:
10.4045/tidsskr.22.0625.
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Benestad, Haakon Breien
(2022).
Sympatikuskontroll av aterosklerotiske plakk.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
142(13).
doi:
10.4045/tidsskr.22.0453.
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Benestad, Haakon Breien
(2022).
Fibroseutvikling som årsak til hjertesvikt.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
142(15).
doi:
10.4045/tidsskr.22.0606.
-
Benestad, Haakon Breien
(2022).
Akutt inflammasjon kan forhindre kronisk smerte.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
142(12).
doi:
10.4045/tidsskr.22.0403.
-
Benestad, Haakon Breien
(2022).
Kan kakeksi ved kreft behandles med legemidler?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
142(11).
doi:
10.4045/tidsskr.22.0321.
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Benestad, Haakon Breien
(2022).
Nytt behandlingsprinsipp mot kardiovaskulær sykdom?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
142(10).
doi:
10.4045/tidsskr.22.0299.
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Benestad, Haakon Breien
(2022).
Hvorfor sover vi dårligere når vi blir eldre?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
142(9).
doi:
10.4045/tidsskr.22.0253.
-
Benestad, Haakon Breien
(2022).
En tablett to ganger daglig mot koronavirus?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
142(4).
doi:
10.4045/tidsskr.22.0065.
-
Benestad, Haakon Breien
(2022).
0strogen gir mer aktivitet og mindre fedme i mus.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
142(4).
doi:
10.4045/tidsskr.21.0890.
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Benestad, Haakon Breien
(2022).
Nyoppdaget mekanisme for reparasjon av muskelskader.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
142(1).
doi:
10.4045/tidsskr.21.0806.
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Benestad, Haakon Breien
(2022).
Å arve et langt liv.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
142(5),
p. 1–2.
doi:
10.4045/tidsskr.22.0037.
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Benestad, Haakon Breien
(2021).
Sårtilheling uten arrdannelse.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
141(11),
p. 1–2.
doi:
10.4045/tidsskr.21.0421.
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Benestad, Haakon Breien
(2021).
Modifisering av DNA kan motvirke nerveskader og aldring.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
141(6),
p. 1–2.
doi:
10.4045/tidsskr.21.0069.
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Benestad, Haakon Breien
(2021).
Kan periodisk faste øke sunn livslengde?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
141(18).
doi:
10.4045/tidsskr.21.0765.
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Benestad, Haakon Breien
(2021).
Metabolismen varierer mye med alder.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
141(14).
doi:
10.4045/tidsskr.21.0623.
-
Benestad, Haakon Breien
(2021).
Et antiviralt legemiddel mot covid-19?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
141(12).
doi:
10.4045/tidsskr.21.0500.
-
Benestad, Haakon B.
(2021).
Fysisk belastning stimulerer både benvekst og immunsystem.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
141(11),
p. 1–2.
doi:
10.4045/tidsskr.21.0430.
-
Benestad, Haakon Breien
(2020).
SARS-CoV-2-viruset svekker immunresponsen.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
140(18),
p. 1–2.
doi:
10.4045/tidsskr.20.0909.
-
Benestad, Haakon Breien
(2020).
Granulocytter kan initiere gallestein.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
140(1).
doi:
10.4045/tidsskr.19.0705.
-
Benestad, Haakon Breien
(2020).
Apoptotiske celler hemmer inflammasjon.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
140(10),
p. 1–2.
doi:
10.4045/tidsskr.20.0406.
-
Benestad, Haakon Breien
(2019).
Nyoppdaget mekanisme for muskelregenerasjon.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
139(12).
doi:
10.4045/tidsskr.19.0318.
-
Benestad, Haakon Breien
(2019).
Søvnmangel fremmer arteriosklerose.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
139(9).
doi:
10.4045/tidsskr.19.0293.
-
Benestad, Haakon Breien
(2019).
Kan trening redusere risiko for Alzheimers sykdom?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
139(7).
doi:
10.4045/tidsskr.19.0086.
-
Benestad, Haakon Breien
(2018).
Tyroksin kan også virke raskt.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
138(7).
doi:
10.4045/tidsskr.18.0116.
-
Benestad, Haakon Breien
(2018).
Ny behandling mot tørre øyne?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
138(17).
doi:
10.4045/tidsskr.18.0706.
-
Benestad, Haakon Breien
(2018).
Hurtigtesting for individualisert kreftbehandling.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
138(13).
doi:
10.4045/tidsskr.18.0407.
-
Benestad, Haakon Breien
(2018).
Kan aldersbetinget muskeltap hemmes med legemidler?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
138(17).
doi:
10.4045/tidsskr.18.0725.
-
Benestad, Haakon Breien
(2018).
Hvorfor er så mange eldre plaget med kløe?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
138(14).
doi:
10.4045/tidsskr.18.0504.
-
Benestad, Haakon Breien; Sand, Kristin Larsen & Bruusgaard, Jo C.
(2018).
Less than recommended training of aerobic fitness and muscle strength: What to expect?
Acta Physiologica.
ISSN 1748-1708.
224(4).
doi:
10.1111/apha.13104.
-
Benestad, Haakon Breien
(2018).
Hvordan oppst?r immunologisk hukommelse?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
138(10).
doi:
10.4045/tidsskr.18.0206.
-
Benestad, Haakon Breien & Valeur, Jørgen
(2018).
Har tarmfloraen betydning for utvikling av multippel sklerose?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
138(3),
p. 235–235.
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Benestad, Haakon Breien & Laake, Petter
(2015).
Research Strategies, Planning and Analysis.
In Laake, Petter; Benestad, Haakon Breien & Olsen, Bjørn Reino (Ed.),
Research in Medical and Biological Sciences: From Planning and Preparation ot Grant Application and Publication..
Academic Press.
ISSN 978-0-12-799943-2.
p. 89–104.
-
Benestad, Haakon Breien
(2014).
Re: En mann i 80-årene med muskelstivhet og hudblødninger :.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
134(14).
doi:
10.4045/tidsskr.14.0819.
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Benestad, Haakon Breien & Laake, Petter
(2014).
Dårlig tittel - dårlig manus?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
134(4),
p. 382–382.
doi:
10.4045/tidsskr.14.0143.
-
Benestad, Haakon Breien
(2012).
Fysiologiens forandring gjennom 40 år.
Michael Quarterly.
ISSN 1504-0658.
9(4),
p. 389–399.
-
Olsen, Ingar & Benestad, Haakon Breien
(2011).
Økt arteriosklerose av kolin?
[Newspaper].
Tidsskrift for Den norske legeforening, 2011;131 (15):1408.
-
Bøyum, A.; Skrede, Knut Kristian; Myhre, Oddvar; Tennfjord, VA; Neurauter, Christine Gran & Tolleshaug, Helge
[Show all 9 contributors for this article]
(2010).
Calprotectin (S100A8/S100A9) og myeloperoksidase : ko-regulatorer av dannelsen av reaktive oksygen-metabolitter (ROS).
Show summary
Problemstilling Inflammatoriske mediatorer stimulerer produksjon av reaktive oksygen metabolitter (ROS: O2־, H2O2, OH´) i polymorfonukleære neutrofile granulocytter (PMN). HOCl er viktig i mikrobeforsvar og dannes av myeloperoksidase i PMN, og kan detekteres i et chemiluminescence-assay. Metode Luminol-chemiluminescence ble målt som relative lysverdier i et luminometer (Luminoskan, Termo Labsystems, Helsinki, Finland), med 96-brønner (White Cliniplate, Thermo Fisher Scientific, Vantaa-Finland). Resultater og konklusjoner Vi har vist at calprotectin (S100A8/A9), som det finnes rikelig av i PMN-cytosol, også stimulerer dannelse av chemiluminescence som respons på H2O2 i et cellefritt system, noe som ikke er vist tidligere. Myeloperoksidase og calprotectin virket synergistisk. Calprotectin-indusert chemiluminescence økte, mens myeloperoksidase-stimulert chemiluminescence gikk ned ved pH > 7.5. For myeloperoksidase var NaCl nødvendig for chemiluminescence, men ikke for calprotectin. 4-hydroksy-benzosyre, som binder OH´, fjernet nesten calprotectin-stimulert chemiluminescence, men økte myeloperoksidase-aktiviteten moderat. Kombinasjonen av nativt calprotectin, eller rekombinante S100A8/A9 proteiner, med NaOCl medførte en markant økning i chemiluminescence. NaOCl kan være den synergistiske lenken mellom myeloperoksidase og calprotectin. Ved høyere konsentrasjoner av S100A9 forsvant denne stimuleringen, noe som kan forklares ved en switch fra pro-oksidant til anti-oksidant funksjon. Vi foreslår at OH´ er den dominerende ROS produsert av calprotectin, en funksjon som ikke er beskrevet tidligere.
Virksomhetsområde: Annet
-
Benestad, Haakon Breien
(2010).
Vitenskapelig uredelighet - alvorlig, forsettlig eller grovt uaktsomt?
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
130(5),
p. 515–516.
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Benestad, Haakon Breien & Wisløff, Finn Georg B
(2008).
Forskningsetikk og Universitetet i Oslo.
Tidsskrift for Den norske legeforening.
ISSN 0029-2001.
128(15),
p. 1683–1684.
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Lycke, Kirsten Hofgaard; Benestad, Haakon Breien & Sandberg, Torill Marlene
(2007).
Development of teaching and learning at the University of Oslo.
-
Nestvold, Janne M.; Omdal, Bente Kahrs; Dai, KZ; Benestad, Haakon Breien & Rolstad, Bent
(2006).
The role of repeated MHC mismatched bone marrow transplantation in the resistance against a rat acute myelogenous leukaemia (BNML).
Tissue Antigens.
ISSN 0001-2815.
67,
p. 476–477.
View all works in Cristin
Published
Apr. 13, 2011 2:40 PM
- Last modified
Aug. 23, 2021 12:05 PM