Challenges in preventing unions and pregnancies among adolescents in rural and Indigenous communities ruled by customs and traditions in Mexico.

Various Indigenous communities in Mexico establish their regulatory system according to their customs and traditions. In Chiapas, 27% of the population is Indigenous and has a high adolescent fertility rate. This study analyzes how customs and traditions influence unions and early pregnancies in specific contexts of rural and Indigenous communities.

Challenges of menstrual health: Knowledge and prejudices in Mexican public lower-secondary school female students.

A cross-sectional study describing aspects of menstrual poverty was analyzed with 201 female lower-secondary students in Mexico. The 15.5% indicated having a lot of knowledge about menstruation before experiencing it, increasing to 36.

Diminished placental Factor XIIIA1 expression associates with pre-conception antiretroviral treatment and preterm birth in pregnant people living with HIV.

We previously showed a link between maternal vascular malperfusion and pre-term birth (PTB) in pregnant people living with HIV (PPLH) initiating antiretroviral treatment (ART) before pregnancy, indicating poor placental vascularisation. After measuring antenatal plasma angiogenic factors to seek mechanistic insights, low levels of plasma Factor XIIIA1 (FXIIIA1) and vascular-endothelial-growth-factor (VEGF) was significantly associated with PTB at the time closest to delivery (median 34 weeks) in PPLH initiating ART before pregnancy. Knowing that FXIIIA1 is crucial for haemostasis, angiogenesis, implantation and pregnancy maintenance and that expression is found on placental macrophages (Hofbauer cells), we examined placentae at delivery from matching participants who either initiating ART before pregnancy or during gestation.

Drivers of urban biodiversity in Mexico and joint risks from future urban expansion, climate change, and urban heat island effect.

Urbanization is a phenomenon where humans concentrate in high densities and consume more per capita energy than in rural areas, imposing high pressures on biodiversity and ecosystem services. Although Mexico is recognized as a megadiverse country and there is an understanding of ecological and evolutionary processes underlying this high diversity, only some efforts have been devoted to understanding how urban biodiversity has been shaped. Here, we compiled a set of socioeconomic and ecological variables to explore macroecological patterns in urban biodiversity across Mexican municipalities.

"It should be hard to be a drug abuser" An evaluation of the criminalization of drug use in Sweden.

Background: Drug use was criminalized in Sweden in 1988 with aim of reducing the number of consumers and drug-related risks and harms. Imprisonment was introduced into the penalty scale in 1993 to improve the legislation's effectiveness. The criminalization has never been evaluated.