Developmental or adult-onset deletion of neurotensin receptor-1 from dopamine neurons differentially reduces body weight.

Central neurotensin signaling via neurotensin receptor-1 (NtsR1) modulates various aspects of physiology, including suppressing feeding and promoting locomotor activity that can support weight loss. However, it remains unclear when and where NtsR1 expression contributes to control of body weight vs. other effects. We previously showed that activating ventral tegmental area (VTA) dopamine (DA) neurons that express NtsR1 promotes weight loss. We therefore hypothesized that deleting NtsR1 from DA neurons would promote weight gain by increasing food intake and decreasing physical activity. In contrast, developmental deletion of NtsR1 from DA neurons (by crossing DATCre mice with NtsR1flox/flox mice) had no impact on the feeding or body weight of mice fed a chow diet, though it augmented locomotor activity. Developmental deletion of NtsR1 from DA neurons protected mice from diet-induced obesity, but not via altering feeding, physical activity, or energy expenditure. Given that NtsR1 may exert distinct roles within development vs. adulthood, we then examined the impact of adult-onset deletion of NtsR1 from VTA DA neurons. We injected adult NtsR1flox/flox mice in the VTA with adeno associated virus to Cre-dependently delete NtsR1 in the VTA (VTAR1Null mice) and compared them to mice with intact NtsR1 (Controls). Again, in contrast to our hypothesis, VTAR1Null mice gained less weight than Controls while on normal chow or high fat diets. Moreover, VTAR1Null mice exhibited blunted feeding after fasting, suggesting a role for NtsR1 in adult VTA DA neurons in coordinating energy need and intake. Altogether, these data suggest that intact expression of NtsR1 in DA neurons is necessary for appropriate regulation of body weight, but a lack of NtsR1 in the developing vs. adult DA system protects from weight gain via different mechanisms. These findings emphasize the need for temporal and site-specific resolution to fully understand the role of NtsR1 within the brain.

A Cross University-Led COVID-19 Rapid-Response Effort: Design, Build, and Distribute Drexel AJFlex Face Shields.

The purpose of this article is to demonstrate how a new cross-community leadership team came together, collaborated, coordinated across academic units with external community partners, and executed a joint mission to address the unmet clinical need for medical face shields during these unprecedented times. Key aspects of this success include the ability to forge and leverage new opportunities, overcome challenges, adapt to changing constraints, and serve the significant need across the Philadelphia region and healthcare systems. We teamed to design-build durable face shields (AJFlex Shields). This was accomplished by high-volume manufacturing via injection molding and by 3-D printing the key headband component that supports the protective shield. Partnering with industry collaborators and civic-minded community allies proved to be essential to bolster production and deliver approximately 33,000 face shields to more than 100 organizations in the region. Our interdisciplinary team of engineers, clinicians, product designers, manufacturers, distributors, and dedicated volunteers is committed to continuing the design-build effort and providing Drexel AJFlex Shields to our communities.

Exploring Parental Perceptions and Concerns About Sexuality and Reproductive Health of Their Child With Intellectual and Developmental Disability (IDD) in Mumbai.

In India, sexuality is defined by society, which considers it as a taboo and is usually restricted to sex and related issues like sexual abuse, safe sex, unwanted pregnancy, etc. For a person with disability, sexual desires and wish for parenthood are considered as uncommon. Persons with intellectual and developmental disability (IDD) are characterized by subnormal intelligence, which may partially or totally restrict the person's ability to perform day-to-day activities and take life decisions. Thus, perceptions of primary caregivers, who take decisions on behalf of the person with IDD, have an important role in their life. The aim of the study is to understand parents' perceptions and concerns about the sexuality and reproductive health of their child with an IDD. The study adopted a qualitative methodology wherein 14 primary caregivers of individuals with IDD belonging to different socio-economic and demographic backgrounds were interviewed in Mumbai. The common perceptions were that puberty is expected, sexual behavior is unexpected, and there is a hope for cure. The reaction to puberty onset appeared to vary with the gender of the child. Puberty onset was often seen as an enabling factor for marriage especially among parents of female child. Marriage and/or childbirth was perceived as a possible cure for IDD by some parents. The dominant parental concerns were found to be safety, early onset of puberty, perception of child's action by others, and concerns about the child's family life. These concerns were also found to vary with the gender of the child, type of disability, and the socio-economic status of the family. Some of the perceptions about sexuality were shaped by the primary caregivers' concern for the individual with IDD.