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Sökning: WFRF:(Bengtsson Bengt Åke 1944) > Göteborgs universitet

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1.
  • Karason, Kristjan, 1962, et al. (författare)
  • Effect of growth hormone treatment on circulating levels of NT-proBNP in patients with ischemic heart failure.
  • 2020
  • Ingår i: Growth hormone & IGF research : official journal of the Growth Hormone Research Society and the International IGF Research Society. - : Elsevier BV. - 1532-2238. ; 55
  • Tidskriftsartikel (refereegranskat)abstract
    • Growth hormone (GH) therapy in heart failure (HF) is controversial. We investigated the cardiovascular effects of GH in patients with chronic HF due to ischemic heart disease.In a double-blind, placebo-controlled trial, we randomly assigned 37 patients (mean age 66 years; 95% male) with ischemic HF (ejection fraction [EF] < 40%) to a 9-month treatment with either recombinant human GH (1.4 mg every other day) or placebo, with subsequent 3-month treatment-free follow-up. The primary outcome was change in left ventricular (LV) end-systolic volume measured by cardiac magnetic resonance (CMR). Secondary outcomes comprised changes in cardiac structure and EF. Prespecified tertiary outcomes included changes in New York Heat Association (NYHA) functional class and quality of life (QoL), as well as levels of insulin-like growth factor-1 (IGF-1) and N-terminal pro-brain natriuretic peptide (NT-proBNP).No changes in cardiac structure or systolic function were identified in either treatment group; nor did GH treatment affect QoL or functional class. In the GH group, circulating levels of IGF-1 doubled from baseline (+105%; p < 0.001) and NT-proBNP levels halved (-48%; p < 0.001) during the treatment period, with subsequently a partial return of both towards baseline levels. No changes in IGF-1 or NT-proBNP were observed in the placebo group at any time during the study.In patients with chronic ischemic HF, nine months of GH treatment was associated with significant increases in levels of IGF-1 and reductions in levels of NT-proBNP, but did not affect cardiac structure, systolic function or functional capacity.
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  • Ahlman, Håkan, 1947, et al. (författare)
  • Adrenocortical carcinoma--diagnostic and therapeutical implications.
  • 1993
  • Ingår i: The European journal of surgery = Acta chirurgica. - 1102-4151. ; 159:3, s. 149-58
  • Tidskriftsartikel (refereegranskat)abstract
    • To evaluate the results of treatment of a consecutive series of patients with adrenocortical carcinoma who presented during the six year period 1985 to 1991.
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  • Arnestad, J P, et al. (författare)
  • Isolated hyperthermic liver perfusion with cytostatic-containing perfusate activates the complement cascade.
  • 1992
  • Ingår i: The British journal of surgery. - 0007-1323. ; 79:9, s. 948-51
  • Tidskriftsartikel (refereegranskat)abstract
    • Eight patients with advanced liver malignancy undergoing isolated hyperthermic liver perfusion with melphalan and cisplatin were studied with regard to complement activation and formation of anaphylatoxins (C3a and C5a) and terminal C5b-9 complement complexes (TCCs). Blood samples for complement variables (C1-INH, C3, C4, C5, C3a, C5a and TCCs) were taken before surgery, 1 min before the start of perfusion, 1, 2 and 3 h after the start of perfusion, and 24 h after operation. Samples were drawn from the perfusate 1 h after the start of perfusion. Activation of complement was observed during perfusion. Raised plasma concentrations of C3a and TCCs were recorded and high levels of C3a and TCCs were found in the perfusate. In vitro tests indicated that melphalan and cisplatin may activate complement. This activation occurred at 37 and 42 degrees C but was more pronounced at 42 degrees C.
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6.
  • Barbosa, Edna J L, 1961, et al. (författare)
  • Extracellular water and blood pressure in adults with growth hormone (GH) deficiency: a genotype-phenotype association study.
  • 2014
  • Ingår i: PloS one. - : Public Library of Science (PLoS). - 1932-6203. ; 9:8
  • Tidskriftsartikel (refereegranskat)abstract
    • Growth hormone deficiency (GHD) in adults is associated with decreased extracellular water volume (ECW). In response to GH replacement therapy (GHRT), ECW increases and blood pressure (BP) reduces or remains unchanged. Our primary aim was to study the association between polymorphisms in genes related to renal tubular function with ECW and BP before and 1 year after GHRT. The ECW measures using bioimpedance analysis (BIA) and bioimpedance spectroscopy (BIS) were validated against a reference method, the sodium bromide dilution method (Br(-)).
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7.
  • Barbosa, Edna J L, 1961, et al. (författare)
  • Genotypes associated with lipid metabolism contribute to differences in serum lipid profile of GH-deficient adults before and after GH replacement therapy.
  • 2012
  • Ingår i: European journal of endocrinology / European Federation of Endocrine Societies. - 1479-683X .- 0804-4643. ; 167:3, s. 353-62
  • Tidskriftsartikel (refereegranskat)abstract
    • bjective: GH deficiency (GHD) in adults is associated with an altered serum lipid profile that responds to GH replacement therapy (GHRT). This study evaluated the influence of polymorphisms in genes related to lipid metabolism on serum lipid profile before and after 1 year of GHRT in adults. Design and methods: In 318 GHD patients, total cholesterol (TC) serum concentrations, LDL-C, HDL-C, and triglycerides (TG) were assessed. Using a candidate gene approach, 20 single nucleotide polymorphisms (SNPs) were genotyped. GH dose was individually titrated to obtain normal serum IGF1 concentrations. Results: At baseline, the minor alleles of cholesteryl ester transfer protein (CETP) gene SNPs rs708272 and rs1800775 were associated with higher serum TC and apolipoprotein E (APOE) gene SNP rs7412 with lower TC concentrations; CETP SNPs rs708272, rs1800775, and rs3764261 and apolipoprotein B (APOB) gene SNP rs693 with higher serum HDL-C; APOE SNP rs7412, peroxisome proliferator-activated receptor gamma (PPARG) gene SNP rs10865710 with lower LDL-C, and CETP SNP rs1800775 with higher LDL-C; and APOE/C1/C4/C2 cluster SNP rs35136575 with lower serum TG. After treatment, APOB SNP rs676210 GG genotype was associated with larger reductions in TC and LDL-C and PPARG SNP rs10865710 CC genotype with greater TC reduction. All associations remained significant when adjusted for age, sex, and BMI. Conclusions: In GHD adults, multiple SNPs in genes related to lipid metabolism contributed to individual differences in baseline serum lipid profile. The GH treatment response in TC and LDL-C was influenced by polymorphisms in the APOB and PPARG genes.
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8.
  • Barbosa, Edna J L, 1961, et al. (författare)
  • Influence of the Exon 3-deleted/full-length Growth Hormone Receptor Polymorphism on the Response to Growth Hormone Replacement Therapy in Adults with Severe Growth Hormone Deficiency. : d3-GHR isoform in GHD adults
  • 2009
  • Ingår i: The Journal of clinical endocrinology and metabolism. - : The Endocrine Society. - 0021-972X .- 1945-7197. ; 94:2, s. 639-644
  • Tidskriftsartikel (refereegranskat)abstract
    • Context: There is considerable individual variation in the clinical response to growth hormone (GH) replacement therapy in GH deficient (GHD) adults. Useful predictors of treatment response are lacking. Objective: To assess the influence of the exon 3-deleted (d3-GHR) and full-length (fl-GHR) GH receptor isoforms on the response to GH replacement therapy in adults with severe GHD. Design, Patients: 124 adult GHD patients (79 men, median age 50 years) were studied before and after 12 months of GH therapy. GHD patients were divided into those bearing fl/fl alleles (Group 1) and those bearing at least one d3-GHR allele (Group 2), and the genotype was related to the effects of GH therapy on IGF-I levels and total body fat (BF). Intervention: GH dose was individually titrated to obtain normal serum IGF-I levels. Main Outcome Measures: GHR genotype was determined by PCR amplification, IGF-I levels by immunoassay, and BF by a four-compartment model. Results: Seventy-two (58%) patients had fl/fl genotype and were classified as Group 1, while 52 (42%) had at least one d3-GHR allele and were classified as Group 2 (40 were heterozygous and 12 were homozygous). At baseline, there were no significant differences in the study groups. Changes in IGF-I and BF after 12 months of GH treatment did not differ significantly between the two genotype groups. Conclusion: The presence of d3-GHR allele did not influence the response to GH replacement therapy in our cohort of adults with severe GHD.
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Bengtsson, Bengt-Åke ... (61)
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Bosaeus, Ingvar, 195 ... (13)
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Lönn, Lars, 1956 (5)
Koranyi, Josef, 1956 (5)
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Barbosa, Edna J L, 1 ... (4)
Ahlman, Håkan, 1947 (3)
Wängberg, Bo, 1953 (3)
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