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Article
Publication date: 24 September 2019

Somayeh Tajik, Kevan Jacobson, Sam Talaei, Hamed Kord-Varkaneh, Zeinab Noormohammadi, Ammar Salehi-Sahlabadi, Mehran Pezeshki, Jamal Rahmani and Azita Hekmatdoost

The results of human studies evaluating the efficacy of plant Phytosterols on liver function were inconsistent. Therefore, the purpose of this paper is to eliminate these…

Abstract

Purpose

The results of human studies evaluating the efficacy of plant Phytosterols on liver function were inconsistent. Therefore, the purpose of this paper is to eliminate these controversies about the Phytosterols consumption on liver serum biochemistry in adult subjects.

Design/methodology/approach

The literatures systematically searched throughout PubMed and Scopus databases up to June 2018; it was conducted by using related keywords. Estimates of effect sizes were expressed based on weighted mean difference (WMD) and 95% CI from the random-effects model (erSimonian and Laird method). Heterogeneity across studies was assessed by using I2 index. Eighteen studies reported the effects of Phytosterols (PS) supplementation on liver serum biochemistry.

Findings

The current meta-analysis did not show a significant effect on ALT (MD: 0.165 U/L, 95% CI: −1.25, 1.58, p = 0.820), AST (MD: −0.375 IU/Liter, 95% CI: −1.362, 0.612, p = 0.457), ALP (MD: 0.804 cm, 95% CI: −1.757, 3.366, p = 0.538), GGT (MD: 0.431 U/L, 95% CI: −1.803, 2.665, p = 0.706) and LDH (MD: 0.619 U/L, 95% CI: −4.040, 5.277, p = 0.795) following PS consumption.

Originality/value

The authors found that no protective or toxic effects occur after the consumption of Phytosterols on liver enzymes including ALT, AST, ALP, LDH and GGT.

Article
Publication date: 20 November 2019

Annette McKeown and Sarah McCrory

The purpose of this single-case experimental design paper is to examine the efficacy of the high-dosage Life Minus Violence – Enhanced (LMV-E) programme with a small sample of…

Abstract

Purpose

The purpose of this single-case experimental design paper is to examine the efficacy of the high-dosage Life Minus Violence – Enhanced (LMV-E) programme with a small sample of four violent women in custody. All participants were undertaking LMV-E as one component of their treatment pathway in an Offender Personality Disorder (OPD) treatment service for women with personality disorder. The methodology employed an AB baseline design with a six-month baseline period, nine-month treatment period and six-month follow-up. Levels of direct and indirect aggression were recorded throughout the baseline, intervention, and follow-up period. In the follow-up period, women were engaging in further treatment. Psychometric measures linked to treatment domains were used to explore clinically significant and reliable change following the intervention. Clinical and reliable change was indicated in some treatment domains for each participant following the intervention. The pattern of these reductions varied between the women. The patterns of findings are discussed and recommendations presented.

Design/methodology/approach

The methodology employed an AB baseline design with a six-month baseline period, nine-month treatment period and six-month follow-up. Levels of direct and indirect aggression were recorded throughout the baseline, intervention and follow-up period. In the follow-up period, women were engaging in further treatment. Psychometric measures linked to treatment domains were used to explore clinically significant and reliable change following the intervention.

Findings

Clinical and reliable change was indicated in some treatment domains for each participant following the intervention. The pattern of these reductions varied between the female offenders. The patterns of findings are discussed and recommendations presented.

Practical implications

The LMV-E programme was associated with some positive improvements in treatment domains measured in a small sample of female violent offenders. Improvements to some degree were most commonly found in the domains of anger, emotional control and components of criminal thinking. It would be clinically useful to examine characteristics of individuals that appear to benefit most from particular interventions.

Originality/value

There are no existing published findings related to the implementation of LMV-E with females. Therefore, this paper provides preliminary contribution to the evidence base in this area.

Details

Journal of Criminological Research, Policy and Practice, vol. 5 no. 4
Type: Research Article
ISSN: 2056-3841

Keywords

Article
Publication date: 28 May 2019

Julia Babcock and Jared Michonski

The purpose of this paper is to examine the associations among psychopathic and borderline traits, intimate partner violence (IPV) and sensitivity to facial affect. The authors…

Abstract

Purpose

The purpose of this paper is to examine the associations among psychopathic and borderline traits, intimate partner violence (IPV) and sensitivity to facial affect. The authors hypothesized that IPV men high in psychopathic traits would exhibit reduced sensitivity to expressions of distress specifically (fear + sadness), while IPV men high in borderline traits would show heightened sensitivity to facial affect more generally.

Design/methodology/approach

A community sample of 79 IPV men in heterosexual relationships were exposed to slides of facial affect displays while psychophysiological reactions were recorded. Sensitivity to facial affect was operationalized as accuracy in recognizing and skin conductance responses (SCR) while viewing discrete facial expressions.

Findings

Borderline personality disorder (BPD) features were positively related to accuracy in labeling fear and surprise while primary psychopathy (Factor 1) was negatively related to accuracy in labeling disgust. Borderline traits were positively associated with SCR while primary psychopathy was negatively associated with SCR while viewing slides of facial affect. Secondary psychopathy (Factor 2) follows the same physiological patterns of BPD traits but the correlates are weaker. Results suggest that IPV men high in traits of primary psychopathy show hypoarousal whereas those high borderline features show hyperarousal to facial emotions.

Research limitations/implications

Limitations include a small sample of heterosexual violent community couples. Women’s IPV was not analyzed. Findings suggest that BPD and primary psychopathy traits are diametrically opposite in SCR, making them powerful comparison groups for psychophysiological studies. Findings challenge Blair’s (1995) model of a specific deficit in processing distress cues for individuals high in psychopathic traits. Rather results suggest that IPV men high in traits of primary psychopathy show more pervasive hypoarousal to facial emotion. The hyperarousal of men high in BPD traits across facial expressions supports Linehan’s (1993) emotional vulnerability model of borderline personality disorder.

Practical implications

Differences in psychophysiological responding to emotions may be clinically relevant in the motivations for violence perpetration. The hypoarousal associated with primary psychopathy may facilitate the perpetration of proactive violence. The hyperarousal associated with BPD and secondary psychopathy may be fundamental in the perpetration of reactive violence. Treatment matching by IPV perpetrators’ personality traits may improve the efficacy of battering intervention programs. Perpetrators high in borderline personality features may benefit from emotional regulation therapies, such as Dialectical Behavior Therapy. IPV men high in traits of primary psychopathy may benefit from affective empathy and validation training.

Social implications

Currently, battering intervention programs show little efficacy in reducing intimate partner recidivism. Experimental psychopathology studies such as this one may inform advocates seeking to develop new, tailored treatment packages for partner violence offenders with different personality disorder traits.

Originality/value

Many treatment providers assume that men who batter women have deficits in empathy and emotional intelligence. However, this study suggests that rather than global deficits, deficits depend on personality traits. The current study is the first to assess psychophysiological reactivity in response to facial affect displays among IPV perpetrators. Examining SCR responding to photos of facial affect may be used in future studies of affect sensitivity.

Details

Journal of Aggression, Conflict and Peace Research, vol. 11 no. 3
Type: Research Article
ISSN: 1759-6599

Keywords

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