Xenografted human iPSC-derived neurons with the familial Alzheimer's disease APP mutation reveal dysregulated transcriptome signatures linked to synaptic function and implicate LINGO2 as a disease signaling mediator.

Alzheimer's disease (AD) is the most common cause of dementia, and disease mechanisms are still not fully understood. Here, we explored pathological changes in human induced pluripotent stem cell (iPSC)-derived neurons carrying the familial AD APP mutation after cell injection into the mouse forebrain. APP mutant iPSCs and isogenic controls were differentiated into neurons revealing enhanced Aβ production, elevated phospho-tau, and impaired neurite outgrowth in APP neurons.

Osteopontin drives neuroinflammation and cell loss in MAPT-N279K frontotemporal dementia patient neurons.

Frontotemporal dementia (FTD) is an incurable group of early-onset dementias that can be caused by the deposition of hyperphosphorylated tau in patient brains. However, the mechanisms leading to neurodegeneration remain largely unknown. Here, we combined single-cell analyses of FTD patient brains with a stem cell culture and transplantation model of FTD.

Effects of repeated developmental GLP-1R agonist exposure on young adult behavior and hippocampal structure in mice.

Glucagon-like peptide-1 receptor (GLP-1R) agonists are common type 2 diabetes medications that have been repurposed for adult chronic weight management. Clinical trials suggest this class may also be beneficial for obesity in pediatric populations. Since several GLP-1R agonists cross the blood-brain barrier, it is important to understand how postnatal developmental exposure to GLP-1R agonists might affect brain structure and function later in life.

Effects of repeated developmental GLP-1R agonist exposure on adult behavior and hippocampal structure in mice.

Glucagon-like peptide-1 receptor (GLP-1R) agonists are common type 2 diabetes medications that have been repurposed for adult chronic weight management. Clinical trials suggest this class may also be beneficial for obesity in pediatric populations. Since several GLP-1R agonists cross the blood-brain barrier, it is important to understand how postnatal developmental exposure to GLP-1R agonists might affect brain structure and function in adulthood.

Exploring how informed mental health app selection may impact user engagement and satisfaction.

The prevalence of mental health app use by people suffering from mental health disorders is rapidly growing. The integration of mental health apps shows promise in increasing the accessibility and quality of treatment. However, a lack of continued engagement is one of the significant challenges of such implementation.

Accessibility and availability of smartphone apps for schizophrenia.

App-based interventions have the potential to enhance access to and quality of care for patients with schizophrenia. However, less is known about the current state of schizophrenia apps in research and how those translate to publicly available apps. This study, therefore, aimed to review schizophrenia apps offered on marketplaces and research literature with a focus on accessibility and availability.

Glucagon-like peptide-1 receptor differentially controls mossy cell activity across the dentate gyrus longitudinal axis.

Understanding the role of dentate gyrus (DG) mossy cells (MCs) in learning and memory has rapidly evolved due to increasingly precise methods for targeting MCs and for in vivo recording and activity manipulation in rodents. These studies have shown MCs are highly active in vivo, strongly remap to contextual manipulation, and that their inhibition or hyperactivation impairs pattern separation and location or context discrimination. Less well understood is how MC activity is modulated by neurohormonal mechanisms, which might differentially control the participation of MCs in cognitive functions during discrete states, such as hunger or satiety.

Bilateral paranasal sinus fungal balls: A retrospective cohort study in 28 patients over a 21-year period.

Paranasal fungal balls are rare entities for which a recent increase in reported cases has been observed. Fungal balls are most commonly unilateral, and there are few bilateral cases in the literature. Here we report the clinical features of bilateral fungal balls in 24 patients treated in our institution over the past 20 years.

Is septal deviation associated with headache?: A nationwide 10-year follow-up cohort study.

To investigate the potential relationship between septal deviation (SD) and headache using nationwide representative cohort sample data.This study used a nationwide cohort sample from the Korean National Health Insurance Service database. The cohort sample was composed of 1 million patients, which is obtained by propensity score matching from 2002 to 2013.

Roles of PI3K pan-inhibitors and PI3K-δ inhibitors in allergic lung inflammation: a systematic review and meta-analysis.

Meta-analysis can be applied to study the effectiveness of the summary estimates for experimental papers, producing objective and unbiased results. We investigated the effects of phosphoinositide-3-kinase (PI3K) on the inflammatory profile in allergic mouse models, which are currently under development in signal transduction materials. PubMed, EMBASE and Web of Science databases were searched for relevant literature using the search terms " PI3K inhibitor" and "allergy" or "asthma".

Lipid keratopathy and septal abscess: Case report.

Rationale: Epistaxis is a common otorhinolaryngological emergency, but septal abscess has not been reported before as a complication of epistaxis.

Patient Concerns: We report a case of a 51-year-old man complaining of nasal obstruction and facial numbness for 3 weeks. He had a history of epistaxis, and had been treated with electrocauterization of the left nasal septum at a local clinic 1 month earlier.

Efficacy and safety of gemigliptin as add-on therapy to insulin, with or without metformin, in patients with type 2 diabetes mellitus (ZEUS II study).

The objective of this study was to evaluate the efficacy and safety of gemigliptin added to a stable dose of insulin alone or of insulin in combination with metformin in patients with type 2 diabetes mellitus. After a two-week run-in period, patients were randomized 2:1 to receive gemigliptin 50 mg or placebo once daily as add-on to background therapy with insulin or insulin plus metformin for 24 weeks. The primary endpoint was change in haemoglobin A1c (HbA1c) from baseline at Week 24.

Extranasopharyngeal Angiofibroma of the Frontal Sinus.

Angiofibroma is a rare tumor that accounts for about 0.05% of all head and neck tumors; it mainly occurs in the region of the nasopharynx. To date, no study originating in the frontal sinus has been reported.

What Affects Postoperative Sinusitis and Implant Failure after Dental Implant: A Meta-analysis.

Objective: The dental implant is an innovative instrument that enables the edentulous patient to chew. Many factors have a bearing on the success of dental implantation. There are also many complications after dental implantation.

Rhinocerebral mucormycosis after functional endoscopic sinus surgery: A case report.

Rationale: Mucormycosis is a rare fungal infection which mainly develops in compromised hosts and the associated mortality rate is high.

Patient Concerns: We report a case of mucormycosis in a 59-year-old woman following routine endoscopic sinus surgery. The patient had a history of diabetes mellitus (DM) and bronchial asthma.

Clinical Outcomes of Differentiated Thyroid Cancer Patients with Local Recurrence or Distant Metastasis Detected in Old Age.

Background: Differentiated thyroid carcinoma (DTC) shows a very good prognosis, but older patients have a higher recurrence rate and those show poor prognosis than younger patients. The aim of this study was to determine the clinical outcomes of thyroid cancer patients who experienced recurrence in old age according to the treatment strategy used.

Methods: This retrospective observational cohort study was conducted at Asan Medical Center, Seoul, Korea.

Phosphoinositide 3-kinase-delta could be a biomarker for eosinophilic nasal polyps.

Nasal polyps (NP) cause diverse clinical symptoms of chronic rhinosinusitis (CRS). Chronic inflammation of sinonasal mucosa is known to be crucial in NP formation. We aimed to define the implications of phosphoinositide 3-kinase (PI3K)-δ in nasal inflammation associated with NP by analyzing NP tissue obtained from CRS patients.

The prevalence and genetic characteristics of porcine circovirus type 2 and 3 in Korea.

Background: Porcine circovirus-associated diseases (PCVAD), caused by porcine circovirus type 2 (PCV2), threaten the pig industry worldwide. Five genotypes of PCV2 were recently identified: PCV2a, PCV2b, PCV2c, PCV2d and PCV2e. In addition, a novel porcine circovirus from a case of a sow with dermatitis, nephropathy syndrome and reproductive failure has been identified based on metagenomic analysis and classified as porcine circovirus type 3 (PCV3).

Effect of single-dose intravenous dexamethasone on subjective voice quality after thyroidectomy: A meta-analysis.

Background: Corticosteroids are widely used to treat voice change after thyroidectomy. In this study, we evaluated the effect of a single dose of intravenous dexamethasone after thyroidectomy using a metaanalysis.

Methods: Relevant studies were identified by searching the following databases: Medline, Embase, and Cochrane through February 2017.