Occupational asthma and occupational rhinitis in hairdressers

BACKGROUND: Hairdressers are at risk for occupational respiratory diseases, but the risk factors, causal agents, and underlying mechanisms are not completely defined. AIM: To describe the features of a large group of hairdressers consecutively referred to our center for suspected occupational asthma (OA) over an 8-year period, the type of occupational respiratory diseases, the etiologic agents, and the diagnostic tests. RESULTS: Forty-seven hairdressers (mean age, 25 years; range, 17 to 52 years) were studied. On the basis of the response to the specific inhalation challenge (SIC), 24 patients received a diagnosis of OA (51.1%), which was due to persulfate salts in 21 patients (87.5%), permanent hair dyes in 2 patients (8.3%), and latex in 1 patient (4.2%). Thirteen of these 24 patients (54.2%) also received a diagnosis of occupational rhinitis, which was due to persulfate salts in 11 patients (84.6%) and to paraphenylenediamine in two patients (15.4%). Patients with persulfate asthma had a long period of exposure to bleaching agents, a long latent period between the start of exposure and the onset of symptoms, and a prevalent eosinophilic airway inflammation in induced sputum. The skin-prick test with ammonium persulfate performed in a subset of patients gave negative results CONCLUSIONS: In the present study, we confirmed that persulfate salts are the major agents involved in OA and occupational rhinitis in hairdressers. The positive response to the SIC in only a part of the population of symptomatic exposed workers, the period between the starting of exposure and the onset of symptoms, the type of response to the SIC, and the high frequency of association of asthma with other diseases such as dermatitis and rhinitis suggest an immunologic mechanism that remains to be elucidated.     

Increased HLA-G Expression in Tissue-Infiltrating Cells in Inflammatory Bowel Diseases

Background

Since HLA-G is an immune checkpoint molecule and since Crohn’s disease (CD) and ulcerative colitis (UC) exhibit deregulated immune-mediated mechanisms, we aimed to evaluate intestinal HLA-G expression and soluble HLA-G (sHLA-G) levels in CD/UC patients stratified according to the CD phenotype/localization and UC extension.

Methods

HLA-G tissue expression was assessed by immunohistochemistry in biopsies collected from 151 patients (90 CD, 61 UC) and in surgical resection specimens (28 CD, 12 UC). Surgical material from 24 healthy controls was also assessed. Plasma sHLA-G levels (97 CD, 81 UC, and 120 controls) were evaluated using ELISA.

Results

HLA-G expression was similarly observed in the intestinal epithelial cells of control and CD/UC specimens. However, in biopsies, the plasma cells/lymphocytes infiltrating the lamina propria in CD/UC presented (1) increased HLA-G expression compared to controls (P?<?0.0001), (2) greater cell staining in UC cells than in CD cells irrespective of disease extent (P?=?0.0011), and (3) an increased number of infiltrating cells in the inflammatory CD phenotype compared to that in the stenosing and fistulizing phenotypes (P?=?0.0407). In surgical specimens, CD/UC patients exhibited higher infiltrating cell HLA-G expression in lesion areas than in margins. sHLA-G levels were higher in UC/CD patients (P?<?0.0001) than in controls, but no difference was observed between diseases.

Conclusions

Increased infiltrating cell HLA-G expression associated with increased sHLA-G levels in CD/UC patients may reflect ongoing host strategies to suppress chronic inflammation.

     

Maternal outcomes according to mode of delivery in women with severe preeclampsia: a cohort study

Objective: To determine the association between mode of delivery and maternal complications in patients with severe preeclampsia.

Methods: A prospective cohort study was conducted with 500 pregnant women with severe preeclampsia. The mode of delivery, vaginal or caesarean section, was considered the exposure, while the postpartum maternal complications and severe maternal morbidity were the outcomes. Logistic regression analysis was performed to determine the adjusted risk and 95% confidence intervals (95% CI) of maternal morbidity.

Results: Labour was spontaneous in 22.0% and induced in 28.2%, while 49.8% had an elective caesarean section. Ninety-five (67.4%) of the patients in whom labour was induced delivered vaginally. Total Caesarean rate was 68.2%. The risk of severe maternal morbidity was significantly greater in patients submitted to Caesarean section (54.0% versus 32.7%) irrespective of the presence of labour. Factors that remained associated with severe maternal morbidity following multivariate analysis were a diagnosis of HELLP syndrome after delivery (OR?=?3.73; 95% CI: 1.55–9.88) and having a caesarean (OR?=?1.91; 95% CI: 1.52–4.57).

Conclusions: Caesareans are often performed in patients with severe preeclampsia and are associated with significant postpartum maternal morbidity. Induction of labour should be considered a feasible option in these patients.     

The Collateral Damage of Mass Incarceration: Risk of Psychiatric Morbidity Among Nonincarcerated Residents of High-Incarceration Neighborhoods

Objectives. We examined whether residence in neighborhoods with high levels of incarceration is associated with psychiatric morbidity among nonincarcerated community members.Methods. We linked zip code–linked information on neighborhood prison admissions rates to individual-level data on mental health from the Detroit Neighborhood Health Study (2008–2012), a prospective probability sample of predominantly Black individuals.Results. Controlling for individual- and neighborhood-level risk factors, individuals living in neighborhoods with high prison admission rates were more likely to meet criteria for a current (odds ratio [OR] = 2.9; 95% confidence interval [CI] = 1.7, 5.5) and lifetime (OR = 2.5; 95% CI = 1.4, 4.6) major depressive disorder across the 3 waves of follow-up as well as current (OR = 2.1; 95% CI = 1.0, 4.2) and lifetime (OR = 2.3; 95% CI = 1.2, 4.5) generalized anxiety disorder than were individuals living in neighborhoods with low prison admission rates. These relationships between neighborhood-level incarceration and mental health were comparable for individuals with and without a personal history of incarceration.Conclusions. Incarceration may exert collateral damage on the mental health of individuals living in high-incarceration neighborhoods, suggesting that the public mental health impact of mass incarceration extends beyond those who are incarcerated.The United States leads the world in the percentage of its population that serves time in prison or jail.1,2 As of 2012, nearly 7 million men and women are on probation, parole, or under some other form of community supervision, which means that nearly 3% of the American adult population is currently involved in correctional supervision.3 The burden of incarceration in the United States is not equally distributed in the population. Current estimates from the Bureau of Justice Statistics indicate that 1 of every 3 Black men will serve time in prison in their lifetimes.4 In some communities, these figures are even starker. In Washington, DC, for example, more than 95% of Black men have been in prison in their lifetimes.1 Because of the scope of incarceration within particular subgroups, the current state of the US criminal justice system has been described in such terms as mass imprisonment5 and hyperincarceration.6Research on the health consequences of incarceration falls largely into 2 broad categories. The first, which has received the most empirical attention, has focused on individuals directly involved in the criminal justice system. Individual incarceration exposure is associated with adverse mental7–9 and physical10 health outcomes. A second line of inquiry has evaluated the broader health consequences of incarceration—what has been variously called the “long arm” of corrections,11 the collateral consequences of mass incarceration,5 and “spillover” effects related to incarceration.12 For example, female partners of recently released male prisoners experience depression and anxiety symptoms,13,14 and the children of incarcerated parents are at increased risk for behavioral and mental health problems.15,16 The deleterious health effects of incarceration are not merely confined to the family members of incarcerated individuals, however. Nonincarcerated individuals living in the communities from which inmates are drawn also appear to be at heightened risk for a variety of adverse outcomes, including increased crime rates17 and infectious diseases.18Although this research provides important initial insights into some of the negative consequences of incarceration at the community level, it remains largely unknown whether incarceration influences the mental health of community members who reside in neighborhoods with high-incarceration rates. How might incarceration affect community mental health? High levels of incarceration in neighborhoods can alter the social ecology of communities by eroding social capital and disrupting the kinds of social and family networks and relationships that are necessary for sustaining individuals’ mental health as well as the well-being of communities.1,19–22We examined whether high levels of incarceration in neighborhoods affect the mental health of individuals living in these neighborhoods. We treated incarceration as an ecological or contextual effect, rather than as an individual-level risk factor, which has characterized the majority of research on incarceration and mental health.7,23 That is, rather than examining the mental health consequences of incarceration among those who have themselves been incarcerated or among their family members, we examined the mental health of individuals living in communities that have been exposed to elevated levels of incarceration.