Rise of stem cell therapies in aesthetics.

Stem cells have the ability to self-renew and differentiate into other cell types, which forms the foundation for their use in regenerative medicine and cosmetic dermatology. Adipose-derived stem cells have proven particularly attractive in aesthetics given their relative ease of collection and abundance. Stem cells have been employed for the treatment of androgenetic alopecia and skin rejuvenation with promising results, but their incorporation into cosmeceuticals is still in its infancy.

Platelet-Rich Plasma and Stem Cells for Hair Growth: A Review of the Literature.

The prevalence of hair loss, its psychological consequences, and historically subpar treatments present a unique challenge to the physician. The current Food and Drug Administration-approved treatments for hair loss are plagued by ineffectiveness, noncompliance, and adverse effects. Recent advances in our understanding of hair physiology have fueled the development of more efficacious, minimally invasive, and safer treatment options for hair restoration including plasma-rich protein and stem cell therapy.

The Effect of Negative Pressure Wound Therapy With Antiseptic Instillation on Biofilm Formation in a Porcine Model of Infected Spinal Instrumentation.

Objective: This study evaluates the effect of negative pressure wound therapy with antiseptic instillation (NPWTi) in the clearance of infection and biofilm formation in an in vivo model of infected spinal implants compared to traditional treatment modalities.

Materials And Methods: Five pigs underwent titanium rod implantation of their spinous processes followed by injection of 1 x 106 CFUs/100μL of methicillin-resistant Staphylococcus aureus through the fascia at each site. At 1 week postoperatively, an experimental arm of 3 pigs received NPWTi, and a control arm of 2 pigs received wet-to-dry dressings.

Closed Incision Negative-Pressure Therapy Is Associated with Decreased Surgical-Site Infections: A Meta-Analysis.

Background: Negative-pressure therapy has recently been used over closed incisions to decrease surgical-site occurrences, including infection and dehiscence. A meta-analysis was performed to evaluate the effectiveness of closed incision negative-pressure therapy in lowering the incidence of surgical-site infections compared with standard dressings.

Methods: A literature search was conducted to find publications comparing closed incision negative-pressure therapy to standard incisional care.

GnRH-(1-5) transactivates EGFR in Ishikawa human endometrial cells via an orphan G protein-coupled receptor.

The decapeptide GnRH is known for its central role in the regulation of the hypothalamo-pituitary-gonadal axis. In addition, it is also known to have local effects within peripheral tissues. The zinc metalloendopeptidase, EC 3.

β-Arrestin 2 is a mediator of GnRH-(1-5) signaling in immortalized GnRH neurons.

We have previously demonstrated that the cleavage product of the full-length GnRH, GnRH-(1-5), is biologically active, binds G protein-coupled receptor 173 (GPR173), and inhibits the migration of cells in the immortalized GnRH-secreting GN11 cell. In this study, we attempted to characterize the GnRH-(1-5) intracellular signaling mechanism. To determine whether the signaling pathway mediating GnRH-(1-5) regulation of migration involves a G protein-dependent mechanism, cells were treated with a generic G protein antagonist in the presence and absence of GnRH-(1-5), and a wound-healing assay was conducted to measure migration.

The Novel Actions of the Metabolite GnRH-(1-5) are Mediated by a G Protein-Coupled Receptor.

The gonadotropin-releasing hormone (GnRH) was originally isolated from the mammalian hypothalamus for its role as the primary regulator of reproductive function. Since its discovery, GnRH has also been shown to be located in non-hypothalamic tissues and is known to have diverse functions. Although the regulation of GnRH synthesis and release has been extensively studied, there is additional evidence to suggest that the processing of GnRH to the metabolite GnRH-(1-5) represents another layer of regulation.

Identification of hypothalamic neuron-derived neurotrophic factor as a novel factor modulating appetite.

Disruption of finely coordinated neuropeptide signals in the hypothalamus can result in altered food intake and body weight. We identified neuron-derived neurotrophic factor (NENF) as a novel secreted protein through a large-scale screen aimed at identifying novel secreted hypothalamic proteins that regulate food intake. We observed robust Nenf expression in hypothalamic nuclei known to regulate food intake, and its expression was altered under the diet-induced obese (DIO) condition relative to the fed state.