“Emotional Nose”: The Hedonic Character of Olfaction and its Epistemological and Clinical Implications

The olfactory system is the oldest device that most organisms have to perceive their physical and social environment. However, progressing in the evolutionary tree, the importance of the olfactory perception has decreased, and the sight has taken dominance. Notwithstanding, the olfaction still plays a fundamental role, as it is strictly associated with emotions, which are a medium between perception and behavior. The current work aims at addressing the hedonic character of the olfaction, showing its strong clinical implications for clinical psychology, neuropsychology, and CogInfoCom

The induction of Maspin expression by a glucosamine-derivative has an antiproliferative activity in prostate cancer cell lines

Mammary serine protease inhibitor or Maspin has been characterized as a class II tumor suppressor gene in several cancer types, among them prostate cancer (CaP). Androgen ablation is an effective therapy for CaP, but with short-term effectiveness, thus new therapeutic strategies are actively sought. The present study is aimed to explore the effects of a glucosamine derivative, 2-(N-Carbobenzyloxy)L-phenylalanylamido-2-deoxy-β-D-glucose (NCPA), on two CaP cell lines, PC3 and LNCaP. In particular we analyzed the impact of NCPA on Maspin production, cell viability and cell cycle progression and apoptosis/necrosis pathway activation has been determined in PC3 and LNCaP cell lines. NCPA is able to stimulate Maspin production in PC3 and not in LNCaP cell lines. NCPA blocks the PC3 cell cycle in G1 phase, by inhibiting Cyclin D1 production and induces the apoptosis, therefore interfering with aggressiveness of this androgen-insensitive cell line. Moreover, NCPA is able to induce the expression of Maspin in LNCaP cell line treated with androgen receptor inhibitor, Bicalutamide, and in turn to stimulate the apoptosis of these cells. These findings suggest that NCPA, stimulating the endogenous production of a tumor suppressor protein, could be useful in the design of new therapeutic strategies for treatment of CaP

A peptidyl-glucosamine derivative affects IKKα kinase activity in human chondrocytes

Nuclear factor-kappaB (NF-kappaB) transcription factor regulates several cell signaling pathways, such as differentiation and inflammation, which are both altered in osteoarthritis. Inhibitor kappaB kinase (IKK)alpha and IKKbeta are kinases involved in the activation of the NF-kappaB transcription factor. The aim of the present study was to determine the effects of glucosamine (GlcN), which is administered in the treatment of osteoarthritis, and of its 2-(N-Acetyl)-L-phenylalanylamido-2-deoxy-beta-D-glucose (NAPA) derivative on IKK kinases and, consequently, on NF-kappaB activation in human chondrocytes. The human chondrosarcoma cell line HTB-94 and human primary chondrocytes were stimulated with tumor necrosis factor (TNF)alpha after pre-treatment with GlcN or NAPA. Gene mRNA expression level was evaluated by real-time PCR. Inhibitor kappaB protein (IkappaB)alpha phosphorylation and p65 nuclear re-localization were analyzed by Western blotting; IKKalpha nuclear re-localization was also investigated by immunocytochemistry and Western blotting. IKK kinase activity was studied by in vitro kinase assay. After TNFalpha stimulation, the mRNA expression level of some of the genes under NF-kappaB control, such as interleukin (IL)-6 and IL-8, increased, while treatment with GlcN and NAPA reverted the effect. We investigated the possibility that GlcN and NAPA inhibit IKK kinase activity and found that NAPA inhibits the IKKalpha kinase activity, whereas GlcN does not. Interestingly, both GlcN and NAPA inhibit IKKalpha nuclear re-localization. Our results demonstrate that glucosamine and its peptidyl derivative can interfere with NF-kappaB signaling pathway by inhibiting IKKalpha activity in human chondrocytes. However, the mechanism of action of the two molecules is not completely overlapping. While NAPA can both specifically inhibit the IKKalpha kinase activity and IKKalpha nuclear re-localization, GlcN only acts on IKKalpha nuclear re-localization

The enzymatic oxidation of cysteamine to hypotaurine. Purification and properties of the enzyme.

The enzyme oxidizing cysteamine to hypotaurine has been extracted from horse kidney and purified. The final product behaves as a single protein when analyzed in the ultracentrifuge, by starch gel electrophoresis, and by filtration on dextran gels. The sedimentation coefficient of the pure product is s20, w = 5.9. The molecular weight determined by the Yphantis procedure (22) is 83,000. Nonheme iron is contained in the amount of 1 atom per molecule of enzyme. Spectrophoto-metric analyses indicate absence of nonprotein chromophores in the visible and in the near ultraviolet range. The complete amino acid composition has been determined by ion exchange chromatography. The effect of sulfide, methylene blue, and hydroxylamine, which act as cofactor-like compounds, has been studied. Of the substrates assayed (cysteamine, cysteine, cysteine ethyl and methyl esters, and reduced glutathione), only cysteamine is oxidized to the sulfinic derivative in the presence of the cofactor-like compounds named

Experiences of life and intersectionality of transgender refugees living in Italy: A qualitative approach

Transgender refugees are at risk of experiencing increased minority stress due to experiences of trauma in their country of origin, and the intersection of multiple marginalized identities in their host country. Adopting a transfeminist and decolonial approach, the present study aimed at exploring transgender refugees’ experiences of life and migration. A semi-structured interview protocol was developed, grounded in the perspectives of minority stress and intersectionality. Participants were five transgender refugees (four women and one non-binary) from different cultural/geographic contexts, professing different religions. Using thematic analysis, the researchers identified three themes: pre- and post-migration minority stress and transphobia; religion as a protective factor for gender affirmation; and individuation and the synthesis of social identities. Participants reported traumatic experiences and the inability to openly live out their gender identity in their country of origin as the main push factors to migration. They also reported feelings of isolation and experiences of victimization during interactions with the Italian asylum services, due to a lack of adequate training, racial prejudice, and transphobia. Participants demonstrated positive individuation, linked to gender affirmation treatments and religious protective factors. The interview protocol may be used by social operators to support the claims of transgender asylum seekers, and to clinically assess transgender people with an immigrant background

Glucosamine affects intracellular signalling through inhibition of mitogen-activated protein kinase phosphorylation in human chondrocytes

The aim of this study was to determine the effects of glucosamine on matrix metalloprotease (MMP) production, on mitogen-activated protein kinase (MAPK) phosphorylation, and on activator protein (AP)-1 transcription factor activation in human chondrocytes. The human immortalized cell line lbpva55 and healthy human chondrocytes (obtained from healthy donors) were subjected to challenge with 10 ng/ml IL-1β after pretreatment with 2.5 or 10 mmol/l glucosamine. MMP mRNA expression levels were evaluated using quantitative real-time PCR, and MMP protein production levels were evaluated in the culture supernatant using ELISA. MAPK phosphorylation was evaluated using Western blotting. AP-1 transcription factor activation was evaluated by measuring AP-1 DNA-binding activity. After IL-1β stimulation, levels of MMP-1, MMP-3 and MMP-13 production were markedly increased. Treatment with 2.5 and 10 mmol/l glucosamine reduced expression of these metalloproteases. MMP expression is regulated by transcription factors such as the AP-1 complex, which is activated by phosphorylated MAPKs. IL-1β stimulated phosphorylation of c-jun amino-terminal kinase, p38 MAPK and extracellular signal-regulated kinase-1/2. Glucosamine inhibited c-jun amino-terminal kinase and p38 phosphorylation, and consequently c-jun binding activity. These findings demonstrate, for the first time, that glucosamine inhibits IL-1β-stimulated MMP production in human chondrocytes by affecting MAPK phosphorylation

Gender Identity Milestones, Minority Stress and Mental Health in Three Generational Cohorts of Italian Binary and Nonbinary Transgender People

Transgender and gender nonconforming (TGNC) people experience high rates of minority stress and associated risk for negative health outcomes. However, during the last years, significant positive socio-cultural changes have happened, and younger cohorts of TGNC individuals are having diverse experiences compared to older cohorts. By integrating the minority stress theory and the life course perspective, this cross-sectional, web-based study aimed to explore in 197 Italian TGNC people aged 18 to 54 years (M = 29.82, SD = 9.64) whether the average ages of gender identity milestones (i.e., first insights about being TGNC, self-labeling as a TGNC person, and coming out), minority stress, and mental health vary among three generational cohorts (i.e., Generation Z, Millennials, and Generation X). Compared with older cohorts, younger participants: (a) were more likely to be in the trans-masculine spectrum; (b) self-labeled as TGNC and came out earlier; (c) had more negative expectations and lower levels of disclosure; and (d) had higher levels of mental health problems. No generational differences related to first insights about being TGNC and distal minority stressors were found. Furthermore, compared with binary individuals, participants with a non-binary identity: (a) reported later ages for the gender identity milestones; (b) had higher negative expectations; and (c) had higher levels of mental health problems. Overall, our findings indicated that changes in the social environments have a limited impact on stigmatization processes and mental health of Italian TGNC people

Parenting Desire and Minority Stress in Lesbians and Gay Men: A Mediation Framework

Despite the rapid increase in lesbian and gay (LG) people who desire and decide to become parents, LG childless individuals may encounter serious obstacles in the parenthood process, such as minority stress. Notwithstanding, the psychological processes by which prejudice events might affect the desire to become parents are still understudied. As an extension of the minority stress theory, the psychological mediation framework sheds light on these psychological processes, as it encompasses a more clinical view of stress. Within this framework, the current study aimed at assessing the role of prejudice events in affecting parenting desire in 290 childless Italian LG individuals (120 lesbians and 170 gay men), as well as the role of internalized heterosexism and sexual orientation concealment in mediating the relationship between prejudice events and parenting desire. The results suggest that only in lesbians prejudice events were negatively associated with parenting desire, and that sexual orientation concealment and internalized heterosexism were also negatively associated with parenting desire. Furthermore, sexual orientation concealment, and not internalized heterosexism, mediated the relationship between prejudice events and parenting desire in lesbians, but not gay men. The findings have important implications for clinical practice

Homophobia and transphobia in a sample of Movement Sciences students: Implications for physical education teachers and coaches

Gender and sexual stereotypes and prejudices are pervasive in sport contexts and used to preserve male superiority, relegating what is not masculine to a lower status. These stereotypes and biases are firmly rooted in sport also because they are constantly renewed and reinforced by athletic trainers, who may teach, along with sports practice, the underpinning heteronormative ideologies and values as well. The current study was aimed at exploring knowledge, opinions, and attitudes on gender and sexual diversity in sport among 181 Movement Sciences university students compared to 169 university students attending Psychology, Medicine, and Sociology. Participants answered questions related to gender and sexual diversity, homophobia, and transphobia and data were analyzed through student’s t-tests and linear regressions. Results indicated that Movement Sciences university students had a lower level of knowledge about sexual and gender diversity, and this was associated with higher levels of homophobic and transphobic attitudes. The results suggest the need to introduce specific training in degree courses to deconstruct stereotypes and prejudices around sexual and gender diversity

The Italian Validation of the Gender Minority Stress and Resilience Measure

Transgender and gender nonconforming (TGNC) people experience high levels of minority stress and associated risk for negative mental health outcomes. Notwithstanding, TGNC people may resist the negative effects of minority stress on health through the resilience factors. As no comprehensive measures of gender minority stress and resilience exist in Italy, this study evaluated the psychometric characteristics of an Italian language version of the Gender and Minority Stress and Resilience Measure (GMSR) in an Italian sample of 203 TGNC individuals ranged from 18 to 66 years of age (M = 30.70, SD = 10.79). The GMSR, developed in the United States in 2015, assesses distal stressors (discrimination, rejection, victimization, and nonaffirmation), proximal stressors (internalized transphobia, negative expectations, and nondisclosure), and resilience factors (pride and community connectedness). Confirmatory factor analysis showed that the original 9-factor model had adequate fit to the data obtained from the Italian sample. Criterion validity was partially confirmed, as the stress scales positively correlated with anxiety and depression, and pride negatively correlated with depression, but not anxiety. On the contrary, community connectedness did not correlate with any of the mental health measures. Instead, both convergent and discriminant validity were confirmed as both distal and proximal stressors positively correlated with perceived stress, community connectedness was positively associated with perceived support from friends, and all correlations were below .60. This study offers evidence of the reliability and validity of the GMSR in the Italian context, providing Italian clinicians and researchers with a comprehensive tool to assess gender minority stress in TGNC individuals