158 results match your criteria: "Sungshin University[Affiliation]"

Establishment of a useful in vitro decidual induction model using eCG-primed nonpregnant mouse endometrial stromal cells†.

Biol Reprod

December 2022

Division of Developmental Biology and Physiology, Department of Biology, Institute of Basic Sciences, CDPR, Sungshin University, Seoul, Korea.

Article Synopsis
  • Uterine endometrial differentiation is crucial for female health, and there is a need for an effective in vitro model to study implantation and uterine responses.
  • The new FSS (FHS mimic-stimulated synchronized) model uses primary mouse uterine stromal cells from eCG-primed mice and shows effective differentiation into cells similar to those in a natural pregnancy.
  • Results indicate that the FSS model outperforms traditional models in specific markers and provides a flexible platform for studying endometrial diseases and embryo implantation, contributing to advancements in 3D uterine culture techniques.
View Article and Find Full Text PDF

Sleep and affect: A conceptual review.

Sleep Med Rev

October 2022

Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA.

Everyday experience suggests that sleep and affect are closely linked, with daytime affect influencing how we sleep, and sleep influencing subsequent affect. Yet empirical evidence for this bidirectional relationship between sleep and affect in non-clinical adult samples remains mixed, which may be due to heterogeneity in both construct definitions and measurement. This conceptual review proposes a granular framework that deconstructs sleep and affect findings according to three subordinate dimensions, namely domains (which are distinct for sleep and affect), methods (i.

View Article and Find Full Text PDF

Introduction: Sleep reactivity is the trait-like degree to which stress disrupts sleep, resulting in difficulty falling and staying asleep. Although previous studies have suggested that individuals who have high sleep reactivity may be resistant to cognitive-behavioral therapy for insomnia (CBT-I) effects, there have been no studies that have investigated this empirically. This study explored differential treatment responses in CBT-I based on sleep reactivity levels.

View Article and Find Full Text PDF

Poly(ethylene terephthalate) (PET) is synthesized via a rich ester bond between terephthalate (TPA) and ethylene glycol (EG). Because of this, PET degradation takes a long time and PET accumulates in the environment. Many studies have been conducted to improve PET degrading enzyme to increase the efficiency of PET depolymerization.

View Article and Find Full Text PDF

Small-molecule modulators of protein-RNA interactions.

Curr Opin Chem Biol

June 2022

CRI Center for Chemical Proteomics, Department of Chemistry, Seoul National University, Seoul, 08826, Korea(South). Electronic address:

Protein-RNA interactions (PRIs) play crucial roles in diverse cellular pathways, from transcription to liquid-liquid phase separation, and its dysregulation is associated with a wide range of human disorders. Therefore, there is great emphasis on discovering small-molecule modulators that target unexplored PRIs by developing robust PRI assays. In particular, targeting PRIs could offer innovative solutions to expand the druggable genome, as only a small portion of protein-coding genes are currently targeted by drugs.

View Article and Find Full Text PDF

Effect of regular endurance exercises on management of cardiovascular health in middle-aged men.

J Exerc Rehabil

February 2022

Department of Exercise Rehabilitation, Welfare Soojung Campus, Sungshin University, Seoul, Korea.

This study was conducted to investigate the effect of regular endurance exercises on the management of cardiovascular health in middle-aged men. The following conclusions were drawn as the result of comparatively analyzing middle-aged men who regularly performed triathlon and cycling exercises for more than 5 years. The effect of regular endurance exercises on cardiovascular health management in middle-aged men was found to be relatively positive.

View Article and Find Full Text PDF

A Chronic-Low-Dose Exposing of DEHP with OECD TG 443 Altered the Histological Characteristics and Steroidogeic Gene Expression of Adrenal Gland in Female Mice.

Dev Reprod

December 2021

Division of Developmental Biology and Physiology, Center for Development and Program Research, Department of Biotechnology, Institute of Basic Sciences, Sungshin University, Seoul 02844, Korea.

Article Synopsis
  • Phthalates, specifically di-(2-ethylhexyl) phthalate (DEHP), are recognized as endocrine disruptors, commonly found in industrial products, leading to significant exposure risks for adults.* -
  • In a study with mature female mice, DEHP in drinking water was linked to an increase in adrenal gland wet weight and changes in the morphology of the zona fasciculata, indicating effects on the adrenal cortex.* -
  • While some steroidogenic gene expressions were altered due to DEHP exposure, such as decreased levels of DAX1, there were no significant differences in the overall morphology or extracellular matrix arrangement in the adrenal gland compared to control groups.*
View Article and Find Full Text PDF

Objectives: Early detection of developmental issues in infants and necessary intervention are important. To identify the comorbid conditions, a comprehensive evaluation is required. The study's objectives were to 1) generate scale items by identifying and eliciting concepts relevant to young children (12-71 months) with developmental delays, 2) develop a comprehensive screening tool for developmental delay and comorbid conditions, and 3) assess the tool's validity and cut-off.

View Article and Find Full Text PDF

Exercise-induced hypertension, arterial stiffness, and cardiorespiratory fitness in runners.

J Sports Med Phys Fitness

October 2022

Department of Exercise Rehabilitation Welfare, Sungshin University, Seoul, South Korea -

Background: The relationship between arterial stiffness and cardiorespiratory fitness in long-distance runners with exercise-induced hypertension has not been established. We assessed the relationship among exercise-induced hypertension, arterial stiffness, and cardiorespiratory fitness in long-distance runners.

Methods: Middle-aged men between 40 and 60 years of age were assigned to the following groups: normal blood pressure (N.

View Article and Find Full Text PDF

Objective: Older adults living alone face physical, emotional, and social health problems, and prefer to age in place (AIP) in their homes. A community-based integrated model for AIP is needed and few studies have identified its impact on older adults living alone.

Methods: This was a non-randomized prospective study.

View Article and Find Full Text PDF

The objective of this study was to develop healthcare service design concepts through an empirical study utilizing design thinking to improve the quality of caregiver education provided in the neonatal intensive care unit (NICU). This study adopted the Double Diamond Process of service design comprising the discover, define, and development stages. We identified 7 issues, organized into 10 healthcare service design concepts associated with NICU education: improving the design of educational material, improving materials for high-risk infant guidance, a practicum kit, a parent proficiency checklist, a systematic parent education manual, predictable guidelines for tests and treatment plans, waiting time that provides comfort, message cards that convey feelings, a reservation system for visits, and a post-discharge information sharing platform.

View Article and Find Full Text PDF

Discovery of highly potent human glutaminyl cyclase (QC) inhibitors as anti-Alzheimer's agents by the combination of pharmacophore-based and structure-based design.

Eur J Med Chem

December 2021

Laboratory of Medicinal Chemistry, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea. Electronic address:

Article Synopsis
  • The inhibition of glutaminyl cyclase (QC) is a potential strategy for early Alzheimer's disease treatment by lowering toxic forms of β-amyloid (Aβ) in the brain.
  • Researchers identified strong QC inhibitors, with one compound (214) showing the highest potency in lab tests, while another (227) demonstrated impressive effectiveness in living organisms and improved behavior in mice.
  • The study revealed a strong binding interaction between QC and compound 214, suggesting that QC inhibitors could be valuable additions to current treatments for early-stage Alzheimer's disease.
View Article and Find Full Text PDF

Introduction: Bedtime Procrastination (BP) is defined as the behavior of going to bed later than intended, without having external reasons for doing so. Previous studies have shown that BP has a negative effect on sleep and health, emphasizing the need to develop interventions to decrease BP. This intervention development study is a proof-of-concept study for a psychological intervention designed for decreasing bedtime procrastination, namely BED-PRO.

View Article and Find Full Text PDF

The brain is now recognized as an insulin-sensitive tissue; however, the role of changing insulin concentrations in the peripheral circulation in gene expression in the brain is largely unknown. Here, we performed a hyperinsulinemic-euglycemic clamp on 3-month-old male C57BL/6 mice for 3 h. We show that, in comparison with results in saline-infused controls, increases in peripheral insulin within the physiological range regulate expression of a broad network of genes in the brain.

View Article and Find Full Text PDF
Article Synopsis
  • * During this inactive phase, the blood-testis barrier (BTB) loses its integrity, causing developing germ cells to either be engulfed by Sertoli cells or slough off, leading to the absence of sperm in most epididymis regions.
  • * Key genes responsible for tight junctions in the BTB (like claudin-11 and occludin) are present in active testes but not in inactive ones, indicating that structural disorganization of the BTB is linked to testicular regression and the removal of germ
View Article and Find Full Text PDF

The translocator protein ligands as mitochondrial functional modulators for the potential anti-Alzheimer agents.

J Enzyme Inhib Med Chem

December 2021

Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology, Seoul, Republic of Korea.

Small molecule modulators of mitochondrial function have been attracted much attention in recent years due to their potential therapeutic applications for neurodegenerative diseases. The mitochondrial translocator protein (TSPO) is a promising target for such compounds, given its involvement in the formation of the mitochondrial permeability transition pore in response to mitochondrial stress. In this study, we performed a ligand-based pharmacophore design and virtual screening, and identified a potent hit compound, () as a TSPO ligand.

View Article and Find Full Text PDF
Article Synopsis
  • Melatonin has been shown to cause testicular regression in seasonal breeding animals, particularly in male Syrian hamsters when injected in the afternoon.
  • A study examined the effects of different dosages of melatonin given daily via gavage on hamsters kept in long and short photoperiods over 8 weeks.
  • Results indicated that higher doses of melatonin led to significant testicular shrinkage compared to controls, with low doses having no adverse effect, similar to the large testes seen in the long photoperiod control group.
View Article and Find Full Text PDF

YY1 and CP2c in Unidirectional Spermatogenesis and Stemness.

Dev Reprod

December 2020

Department of Life Science and Research Institute for Natural Sciences, College of Natural Sciences, Hanyang University, Seoul 04763, Korea.

Article Synopsis
  • Spermatogonial stem cells (SSCs) have unique characteristics that allow them to develop into gametes, undergoing significant changes in gene expression during spermatogenesis.
  • The process includes phases like gene repression and chromatin modifications, ultimately leading to the formation of fertilization-ready spermatozoa.
  • Recent research highlights the roles of transcription factors YY1 and CP2c in regulating spermatogenesis and stemness, providing insights into their interactions during specific stages of sperm development.
View Article and Find Full Text PDF
Article Synopsis
  • The model was developed through literature review and validated by surveys and focus group interviews with older adults and health management officials.
  • Testing the model with 22 participants for two weeks showed high satisfaction (9/10) and promoted independence, suggesting it could improve the quality of life for seniors aging in place.
View Article and Find Full Text PDF

A. Vázquez & Cuevas, a plant species endemic to south Jalisco, Mexico, is a critically endangered (CR) species based on the IUCN Red List. In this study, we assembled its complete chloroplast (cp) genome.

View Article and Find Full Text PDF

Recent Advances in Organelle-Targeted Fluorescent Probes.

Molecules

January 2021

Department of Next-Generation Applied Science, and Global Medical Science, Sungshin University, Seoul 01133, Korea.

Recent advances in fluorescence imaging techniques and super-resolution microscopy have extended the applications of fluorescent probes in studying various cellular processes at the molecular level. Specifically, organelle-targeted probes have been commonly used to detect cellular metabolites and transient chemical messengers with high precision and have become invaluable tools to study biochemical pathways. Moreover, several recent studies reported various labeling strategies and novel chemical scaffolds to enhance target specificity and responsiveness.

View Article and Find Full Text PDF

A chloroplast genome of (Nakai) Nakai, an endemic species in Korea.

Mitochondrial DNA B Resour

November 2020

Department of Biotechnology, Sungshin University, Seoul, Korea.

(Nakai) Nakai is an endemic species in Korea. We present the second complete chloroplast genome sequence of showing that the chloroplast genome is 156,376 bp in length containing four subregions: a large single-copy (LSC) region of 87,097 bp, a small single-copy (SSC) region of 17,859 bp, and a pair of inverted repeat regions (IRs) of 25,710 bp. The genome contains 131 genes including 88 protein-coding genes, 35 s, and eight rRNAs.

View Article and Find Full Text PDF

is a non-photosynthetic saprophytic plant of medicinal use in the oriental countries. We report the second complete chloroplast (cp) genome of from a sample collected in Korea. The length of cp genome is only 35,180 bp: there is no inverted repeated region and many photosynthesis genes are missing compared to typical angiosperm cp genomes.

View Article and Find Full Text PDF

: Firefighters are vulnerable to irregular sleep patterns and sleep disturbance due to work characteristics such as shift work and frequent dispatch. However, there are few studies investigating intervention targeting sleep for firefighters. This preliminary study aimed to develop and test a sleep intervention, namely FIT-IN (Firefighter's Therapy for Insomnia and Nightmares), which was based on existing evidence-based treatment tailored to firefighters in consideration of their occupational characteristics.

View Article and Find Full Text PDF
Article Synopsis
  • - The study built on previous findings indicating that low-dose nonylphenol (NP) exposure negatively impacts the reproductive health of female mice, specifically looking at its effects on their reproductive organs.
  • - Mice were exposed to NP from before mating until their offspring were 33 days old, with significant findings such as early vaginal opening and differences in tissue weights related to NP exposure.
  • - Pathohistological analysis revealed changes in ovarian follicle numbers and uterine structure, suggesting that NP exposure leads to early puberty and reproductive abnormalities, prompting the need for further research to clarify NP's effects and mitigate risks.
View Article and Find Full Text PDF