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A prospective examination of sex differences in posttraumatic autonomic functioning
Neurobiology of Stress ( IF 4.3 ) Pub Date : 2021-08-21 , DOI: 10.1016/j.ynstr.2021.100384
Antonia V Seligowski 1, 2 , Elizabeth R Steuber 3 , Rebecca Hinrichs 4 , Mariam H Reda 5 , Charis N Wiltshire 6 , Cassandra P Wanna 5 , Sterling J Winters 5 , Karlye A Phillips 7, 8 , Stacey L House 9 , Francesca L Beaudoin 10 , Xinming An 11 , Jennifer S Stevens 4 , Donglin Zeng 12 , Thomas C Neylan 13 , Gari D Clifford 14, 15 , Sarah D Linnstaedt 11 , Laura T Germine 1, 16, 17 , Kenneth A Bollen 18 , Guia Guffanti 1, 2 , Scott L Rauch 1, 16, 19 , John P Haran 20 , Alan B Storrow 21 , Christopher Lewandowski 22 , Paul I Musey 23 , Phyllis L Hendry 24 , Sophia Sheikh 24 , Christopher W Jones 25 , Brittany E Punches 26, 27 , Michael C Kurz 28, 29, 30 , Vishnu P Murty 31 , Meghan E McGrath 32 , Lauren A Hudak 33 , Jose L Pascual 34, 35 , Mark J Seamon 35, 36 , Elizabeth M Datner 37, 38 , Anna M Chang 39 , Claire Pearson 40 , David A Peak 41 , Roland C Merchant 42 , Robert M Domeier 43 , Niels K Rathlev 44 , Brian J O'Neil 40 , Leon D Sanchez 42, 45 , Steven E Bruce 46 , Mark W Miller 47, 48 , Robert H Pietrzak 49, 50 , Jutta Joormann 51 , Deanna M Barch 52 , Diego A Pizzagalli 1, 2 , John F Sheridan 53, 54 , Beatriz Luna 55 , Steven E Harte 56, 57 , James M Elliott 58, 59, 60 , Karestan C Koenen 61 , Ronald C Kessler 62 , Samuel A McLean 11, 63 , Kerry J Ressler 1, 2 , Tanja Jovanovic 5
Affiliation  

Background

Cross-sectional studies have found that individuals with posttraumatic stress disorder (PTSD) exhibit deficits in autonomic functioning. While PTSD rates are twice as high in women compared to men, sex differences in autonomic functioning are relatively unknown among trauma-exposed populations. The current study used a prospective design to examine sex differences in posttraumatic autonomic functioning.

Methods

192 participants were recruited from emergency departments following trauma exposure (Mean age = 35.88, 68.2% female). Skin conductance was measured in the emergency department; fear conditioning was completed two weeks later and included measures of blood pressure (BP), heart rate (HR), and high frequency heart rate variability (HF-HRV). PTSD symptoms were assessed 8 weeks after trauma.

Results

2-week systolic BP was significantly higher in men, while 2-week HR was significantly higher in women, and a sex by PTSD interaction suggested that women who developed PTSD demonstrated the highest HR levels. Two-week HF-HRV was significantly lower in women, and a sex by PTSD interaction suggested that women with PTSD demonstrated the lowest HF-HRV levels. Skin conductance response in the emergency department was associated with 2-week HR and HF-HRV only among women who developed PTSD.

Conclusions

Our results indicate that there are notable sex differences in autonomic functioning among trauma-exposed individuals. Differences in sympathetic biomarkers (BP and HR) may have implications for cardiovascular disease risk given that sympathetic arousal is a mechanism implicated in this risk among PTSD populations. Future research examining differential pathways between PTSD and cardiovascular risk among men versus women is warranted.



中文翻译:


创伤后自主神经功能性别差异的前瞻性研究


 背景


横断面研究发现,患有创伤后应激障碍(PTSD)的个体表现出自主神经功能缺陷。虽然女性的创伤后应激障碍(PTSD)发病率是男性的两倍,但在遭受创伤的人群中,自主神经功能的性别差异相对未知。目前的研究采用前瞻性设计来检查创伤后自主神经功能的性别差异。

 方法


192 名创伤暴露后的参与者从急诊室招募(平均年龄 = 35.88,68.2% 为女性)。在急诊科测量了皮肤电导率;两周后完成恐惧调节,包括测量血压(BP)、心率(HR)和高频心率变异性(HF-HRV)。创伤后 8 周评估 PTSD 症状。

 结果


男性的 2 周收缩压显着较高,而女性的 2 周 HR 显着较高,并且 PTSD 相互作用的性别表明,患有 PTSD 的女性表现出最高的 HR 水平。女性的两周 HF-HRV 显着较低,并且 PTSD 相互作用的性别表明,患有 PTSD 的女性表现出最低的 HF-HRV 水平。仅在患有 PTSD 的女性中,急诊室的皮肤电导反应与 2 周 HR 和 HF-HRV 相关。

 结论


我们的结果表明,遭受创伤的个体的自主神经功能存在显着的性别差异。鉴于交感神经兴奋是 PTSD 人群中与心血管疾病风险有关的一种机制,交感神经生物标志物(BP 和 HR)的差异可能对心血管疾病风险产生影响。未来的研究有必要检查男性与女性的创伤后应激障碍(PTSD)和心血管风险之间的差异途径。

更新日期:2021-08-25
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