INTRODUCTION: Reperfusion results in a proinflammatory cytokine response, as has been observed following resuscitation from cardiac arrest. Variations in the inflammatory response have been shown to be gender dependent and mediated by steroid hormones. The purpose of this study was to determine whether the tumour necrosis factor-alpha response following resuscitation was gender dependent. METHODS: Anaesthetized swine (15 males and 15 females, weighs 32-47 kg) underwent 7 min of electrically induced cardiac arrest, followed by conventional resuscitation and then measurement of tumour necrosis factor-alpha by enzyme-linked immunosorbent assay at intervals for up to 3h. Testosterone and 17-estradiol were measured in 8 males and 8 females. RESULTS: In all animals 17-estradiol was undetectable. Testosterone exceeded the lower limit of detection in 3 females and 1 male. Levels of tumour necrosis factor-alpha were higher in males than females, from 30 min after resuscitation to 3h. In females, tumour necrosis factor-alpha levels were significantly higher than control values only at 15 min following restoration of circulation; the levels in males demonstrated marked inter-animal variation. CONCLUSIONS: In this swine model, males demonstrated an augmented post-resuscitation tumour necrosis factor-alpha response when compared with females. This difference was not related to steroid hormone levels.
INTRODUCTION: Reperfusion results in a proinflammatory cytokine response, as has been observed following resuscitation from cardiac arrest. Variations in the inflammatory response have been shown to be gender dependent and mediated by steroid hormones. The purpose of this study was to determine whether the tumour necrosis factor-alpha response following resuscitation was gender dependent. METHODS: Anaesthetized swine (15 males and 15 females, weighs 32-47 kg) underwent 7 min of electrically induced cardiac arrest, followed by conventional resuscitation and then measurement of tumour necrosis factor-alpha by enzyme-linked immunosorbent assay at intervals for up to 3h. Testosterone and 17-estradiol were measured in 8 males and 8 females. RESULTS: In all animals 17-estradiol was undetectable. Testosterone exceeded the lower limit of detection in 3 females and 1 male. Levels of tumour necrosis factor-alpha were higher in males than females, from 30 min after resuscitation to 3h. In females, tumour necrosis factor-alpha levels were significantly higher than control values only at 15 min following restoration of circulation; the levels in males demonstrated marked inter-animal variation. CONCLUSIONS: In this swine model, males demonstrated an augmented post-resuscitation tumour necrosis factor-alpha response when compared with females. This difference was not related to steroid hormone levels.
Authors: Thomas Mussack; Peter Biberthaler; Karl-Georg Kanz; Ernst Wiedemann; Cornelia Gippner-Steppert; Wolf Mutschler; Marianne Jochum Journal: Crit Care Med Date: 2002-12 Impact factor: 7.598
Authors: George Moxley; Danielle Posthuma; Patricia Carlson; Eloise Estrada; Jinfeng Han; Linda L Benson; Michael C Neale Journal: Arthritis Rheum Date: 2002-01
Authors: T Mussack; P Biberthaler; C Gippner-Steppert; K G Kanz; E Wiedemann; W Mutschler; M Jochum Journal: Resuscitation Date: 2001-05 Impact factor: 5.262
Authors: Martin K Angele; Stefan Nitsch; Markus W Knoferl; Alfred Ayala; Peter Angele; Friedrich W Schildberg; Karl W Jauch; Irshad H Chaudry Journal: Am J Physiol Endocrinol Metab Date: 2003-07 Impact factor: 4.310
Authors: Scott T Youngquist; James T Niemann; Atman P Shah; Joseph L Thomas; John P Rosborough Journal: J Interferon Cytokine Res Date: 2013-05-09 Impact factor: 2.607
Authors: James T Niemann; Scott Youngquist; John P Rosborough; Atman P Shah; Quynh T Phan; Scott G Filler Journal: Crit Care Med Date: 2010-04 Impact factor: 7.598
Authors: Scott T Youngquist; James T Niemann; Atman P Shah; Joseph L Thomas; John P Rosborough Journal: Resuscitation Date: 2013-01-09 Impact factor: 5.262
Authors: James T Niemann; Scott T Youngquist; Atman P Shah; Joseph L Thomas; John P Rosborough Journal: Resuscitation Date: 2012-06-07 Impact factor: 5.262
Authors: James T Niemann; John P Rosborough; Scott Youngquist; Atman P Shah; Roger J Lewis; Quynh T Phan; Scott G Filler Journal: J Interferon Cytokine Res Date: 2009-11 Impact factor: 2.607
Authors: Sang Hoon Oh; Kyu Nam Park; Jeeyong Lim; Seung Pill Choi; Joo Suk Oh; In Soo Cho; Byung Kook Lee; Yong Hwan Kim; Young-Min Kim; Han Joon Kim; Chun Song Youn; Soo Hyun Kim Journal: Crit Care Date: 2017-11-02 Impact factor: 9.097
Authors: Saraschandra Vallabhajosyula; Dhiran Verghese; Viral K Desai; Pranathi R Sundaragiri; Virginia M Miller Journal: Cardiovasc Res Date: 2022-02-21 Impact factor: 10.787