Infant consumption of human milk (HM) is associated with a reduced risk of overweight and obesity, but the reasons for this relationship are not completely understood. There is emerging evidence that micro RNAs (miRNAs) regulate infant development and metabolism, but the associations between HM miRNAs and infant growth remain poorly understood. We examined the relationship between HM miRNA consumption and infant obesity in 163 mother-infant dyads to determine (1) if miRNA profiles differentiate infants with obesity, and (2) if individual miRNAs accurately predicted infant obesity status at one year of age.
View Article and Find Full Text PDFImpairment in visual function is common after traumatic brain injury (TBI) in the clinical setting, a phenomenon that translates to pre-clinical animal models as well. In Morris et al. (2021), we reported histological changes following weight-drop-induced TBI in a rodent model including retinal ganglion cell (RGC) loss, decreased electroretinogram (ERG) evoked potential, optic nerve diameter reduction, induced inflammation and gliosis, and loss of myelin accompanied by markedly impaired visual acuity.
View Article and Find Full Text PDFThe choroid plexus (ChP) of the brain plays a central role in orchestrating the recruitment of peripheral leukocytes into the central nervous system (CNS) through the blood-cerebrospinal fluid (BCSF) barrier in pathological conditions, thus offering a unique niche to diagnose CNS disorders. We explored whether magnetic resonance imaging of the ChP could be optimized for mild traumatic brain injury (mTBI). mTBI induces subtle, yet influential, changes in the brain and is currently severely underdiagnosed.
View Article and Find Full Text PDFInfant colic is a common condition with unclear biologic underpinnings and limited treatment options. We hypothesized that complex molecular networks within human milk (i.e.
View Article and Find Full Text PDFBackground: Human milk is thought to reduce infant atopy risk. The biologic mechanism for this protective effect is not fully understood.
Objectives: We tested the hypothesis that infant consumption of 4 microRNAs (miR-146b-5p, miR-148b-3p, miR-21-5p, and miR-375-3p) in human milk would be associated with reduced atopy risk.
There is emerging evidence that non-coding RNAs (ncRNAs) within maternal breast milk (MBM) impart unique metabolic and immunologic effects on developing infants. Most studies examining ncRNAs in MBM have focused on microRNAs. It remains unclear whether microRNA levels are related to other ncRNAs, or whether they are impacted by maternal characteristics.
View Article and Find Full Text PDFThe World Health Organization recommends exclusive breastfeeding for ≥6 months, but many mothers are unable to meet this goal. A major reason why mothers undergo early, unplanned breastfeeding cessation is perceived inadequate of milk supply (PIMS). We hypothesized that defining genetic polymorphisms associated with PIMS could aid early identification of at-risk mothers, providing an opportunity for targeted lactation support.
View Article and Find Full Text PDFRecent studies on Polycomb repressive complexes (PRC) reveal a surprising role in transcriptional activation, yet the underlying mechanism remains poorly understood. We previously identified a type 1 PRC (PRC1) that contains Autism Susceptibility Candidate 2 (AUTS2), which positively regulates transcription of neuronal genes. However, the mechanism by which the PRC1-AUTS2 complex influences neurodevelopment is unclear.
View Article and Find Full Text PDFWe have developed an efficient method for the preparation and maintenance of primary cell cultures isolated from adult , a lobate ctenophore. Our primary cell cultures are derived from tissue explants or enzymatically dissociated cells, and maintained in a complex undefined ctenophore mesogleal serum. These methods can be used to isolate, maintain and visually monitor ctenophore cells to assess proliferation, cellular morphology and cell differentiation in future studies.
View Article and Find Full Text PDFThe current paradigm of gut evolution assumes that non-bilaterian metazoan lineages either lack a gut (Porifera and Placozoa) or have a sac-like gut (Ctenophora and Cnidaria) and that a through-gut originated within Bilateria [1-8]. An important group for understanding early metazoan evolution is Ctenophora (comb jellies), which diverged very early from the animal stem lineage [9-13]. The perception that ctenophores possess a sac-like blind gut with only one major opening remains a commonly held misconception [4, 5, 7, 14, 15].
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