1.Change in serum proteome during allogeneic hematopoietic stem cell transplantation and clinical significance of serum C-reactive protein and haptoglobin.
Joohyun RYU ; Se Ryeon LEE ; Sung Goo PARK ; Sunghyun KANG ; Hyeoung Joon KIM ; Byoung Chul PARK
Experimental & Molecular Medicine 2010;42(9):651-661
Successful hematopoietic stem cell transplantation (HSCT) involves the restoration of hematopoietic function after engraftment, arising from the differentiation and proliferation of hematopoietic stem cells. Several factors could influence the course of allogeneic-HSCT (allo-HSCT). Therefore, knowledge of serum proteome changes during the allo-HSCT period might increase the efficacy of diagnosis and disease prevention efforts. This study conducted proteomic analyses to find proteins that were significantly altered in response to allo-HSCT. Sera from five representative patients who underwent allo-HSCT were analyzed by 2-dimensional gel electrophoresis and liquid chromatography tandem mass spectrometry, and were measured on a weekly basis before and after allo-HSCT in additional 78 patients. Fourteen protein spots showing changes in expression were further examined, and most proteins were identified as acute phase proteins (APPs). Studies of 78 additional patients confirmed that C-reactive protein (CRP) and haptoglobin undergo expression changes during allo-HSCT and thus may have the potential to serve as representative markers of clinical events after allo-HSCT. Maximal CRP level affected the development of major transplant-related complications (MTCs) and other problems such as fever of unknown origin. Particularly, an increase in CRP level 21 days after allo-HSCT was found to be an independent risk factor for MTC. Maximal haptoglobin and haptoglobin level 14 days after allo-HSCT were predictive of relapses in underlying hematologic disease. Our results indicated that CRP and haptoglobin were significantly expressed during allo-HSCT, and suggest that their level can be monitored after allo-HSCT to assess the risks of early transplant-related complications and relapse.
Adolescent
;
Adult
;
Biological Markers
;
C-Reactive Protein/*metabolism
;
Female
;
Haptoglobins/*metabolism
;
Hematopoietic Stem Cell Transplantation/*adverse effects
;
Humans
;
Male
;
Middle Aged
;
Proteome/*metabolism
;
Proteomics
;
Transplantation Conditioning
;
Transplantation, Homologous
;
Young Adult
2.Changes in potassium concentration and gene expression in mice fed a high-fat diet.
Junkoo YI ; Rijin KANG ; Zaeyoung RYOO ; Duhak YOON ; Sunghyun KIM ; Myoungok KIM
Journal of Biomedical Research 2015;16(4):165-171
Obesity is a risk factor for various diseases, including cardiovascular disease, diabetes, renal disease, hypertension, cancer, and neural disease. Adipose tissue in animals is important for the mobilization of lipids, milk production, deposition of fat in different depots, and muscle and meat production. Understanding the genetic and physiological causes of metabolic disease is a priority in biomedical genome research. In this study, we examined several variables in mice fed a high-fat diet, including serum composition, body weight, total calorie intake, and differentially expressed genes. Body weight and blood glucose levels were not significantly different between animals fed high-fat and normal diets. However, high-fat diet groups showed reduced calorie and food intakes. Levels of sodium, ionized calcium, glucose, hematocrit, hemoglobin, pH, PCO2, PO2, TCO2 +, HCO3 +, base excess, and SO2 in the blood were not significantly different between mice fed high-fat and normal diets. Serum potassium concentration, however, was lower in mice a high-fat diet. Differentially expressed genes were also compared between the two groups. The purpose of this study was to discover new genes as a result of annealing control primer (ACP) PCR using 20 random primers. Five down regulated genes were identified and three of others were upregulated by high-fat diet. Known genes were excluded from this result. In addition, the relationships among candidate genes and high-fat diet should be investigated according to potassium concentration in the blood. In conclusion, mice fed normal and high-fat diets showed no significant difference in body weight, whereas high-fat diet led to changes in blood composition and differential expression of several genes. These findings may provide a better understanding of the mechanisms underlying the association between obesity and metabolic diseases.
Adipose Tissue
;
Animals
;
Blood Glucose
;
Body Composition
;
Body Weight
;
Calcium
;
Cardiovascular Diseases
;
Diet
;
Diet, High-Fat*
;
Gene Expression*
;
Genome
;
Glucose
;
Hematocrit
;
Hydrogen-Ion Concentration
;
Hypertension
;
Meat Products
;
Metabolic Diseases
;
Mice*
;
Milk
;
Obesity
;
Polymerase Chain Reaction
;
Potassium*
;
Risk Factors
;
Sodium
3.Verrucous carcinoma arising from a previous cystic lesion: a case report
Maxillofacial Plastic and Reconstructive Surgery 2018;40(1):31-
BACKGROUND: Verrucous carcinoma (VC) accounts for 1–10% of cases of squamous cell carcinoma (SCC) in the oral cavity, and 75% of VC occur in the oral cavity. Only 3% of primary intraosseous squamous cell carcinomas (PIOSCC), which means SCC occurring primarily in the bone, are VC. Verrucous carcinoma arising from odontogenic cysts (OC) is very rare, with only seven cases reported to date. CASE PRESENTATION: This study reported a case of a patient who underwent partial maxillectomy and neck dissection for VC that occurred in the right anterior maxilla. The patient was admitted to the emergency department at our institution 8 years ago and showed cystic lesions in the anterior maxilla on facial computed tomography (CT) images. Treatment through other departments including assessment of laceration in the mental region and only suture was performed. This report highlights a very rare case of VC in the right anterior maxilla arising from a previous cystic lesion. CONCLUSIONS: Since PIOSCC can arise from OC, appropriate treatment of intraosseous cysts and regular radiologic evaluation are necesssary. Surgical exicision of the primary lesion without neck dissection can lead to good prognosis for patients with primary intraosseous verrucous carcinoma.
Carcinoma, Squamous Cell
;
Carcinoma, Verrucous
;
Emergency Service, Hospital
;
Humans
;
Lacerations
;
Maxilla
;
Mouth
;
Neck Dissection
;
Odontogenic Cysts
;
Prognosis
;
Sutures
4.Neurocognitive Characteristics of Patients Who Visited a Psychiatric Outpatient Clinic Requesting Treatment for Adult Attention-Deficit/Hyperactivity Disorder
Seon Young PARK ; Yoosuk AN ; Sunghyun PARK ; Min-Sup SHIN ; Ung Gu KANG
Psychiatry Investigation 2024;21(9):958-970
Objective:
This study investigated the neurocognitive characteristics of patients who visited an outpatient clinic requesting diagnosis and treatment for adult attention-deficit/hyperactivity disorder (ADHD).
Methods:
The patients’ electronic medical records were retrospectively reviewed. Neurocognitive test results were compared using Student’s t-test according to their chief complaint, depressive symptoms, childhood history, and intelligence quotient (IQ). Neurocognitive characteristics affecting subjective symptoms of ADHD were analyzed by linear regression.
Results:
The study included 106 patients. They did not have significant deficits in neurocognitive tests. Patients with depressive symptoms showed more impulsive responses (hit reaction time [p=0.037] and commission error [p=0.024]) and self-reported ADHD symptoms (p=0.001). Verbal (p=0.036) and visual memory (p=0.020) were significantly deficient in patients with a childhood ADHD diagnosis. Patients with a low IQ had significant deficits in various domains. Depressive symptoms and vigilance were significantly related to subjective symptoms of ADHD (adjusted R2=0.430, β=0.457, p=0.002).
Conclusion
Our results imply that the neurocognitive function of patients with subjective ADHD symptoms was not abnormal but was affected by depressive symptoms.
5.Neurocognitive Characteristics of Patients Who Visited a Psychiatric Outpatient Clinic Requesting Treatment for Adult Attention-Deficit/Hyperactivity Disorder
Seon Young PARK ; Yoosuk AN ; Sunghyun PARK ; Min-Sup SHIN ; Ung Gu KANG
Psychiatry Investigation 2024;21(9):958-970
Objective:
This study investigated the neurocognitive characteristics of patients who visited an outpatient clinic requesting diagnosis and treatment for adult attention-deficit/hyperactivity disorder (ADHD).
Methods:
The patients’ electronic medical records were retrospectively reviewed. Neurocognitive test results were compared using Student’s t-test according to their chief complaint, depressive symptoms, childhood history, and intelligence quotient (IQ). Neurocognitive characteristics affecting subjective symptoms of ADHD were analyzed by linear regression.
Results:
The study included 106 patients. They did not have significant deficits in neurocognitive tests. Patients with depressive symptoms showed more impulsive responses (hit reaction time [p=0.037] and commission error [p=0.024]) and self-reported ADHD symptoms (p=0.001). Verbal (p=0.036) and visual memory (p=0.020) were significantly deficient in patients with a childhood ADHD diagnosis. Patients with a low IQ had significant deficits in various domains. Depressive symptoms and vigilance were significantly related to subjective symptoms of ADHD (adjusted R2=0.430, β=0.457, p=0.002).
Conclusion
Our results imply that the neurocognitive function of patients with subjective ADHD symptoms was not abnormal but was affected by depressive symptoms.
6.Neurocognitive Characteristics of Patients Who Visited a Psychiatric Outpatient Clinic Requesting Treatment for Adult Attention-Deficit/Hyperactivity Disorder
Seon Young PARK ; Yoosuk AN ; Sunghyun PARK ; Min-Sup SHIN ; Ung Gu KANG
Psychiatry Investigation 2024;21(9):958-970
Objective:
This study investigated the neurocognitive characteristics of patients who visited an outpatient clinic requesting diagnosis and treatment for adult attention-deficit/hyperactivity disorder (ADHD).
Methods:
The patients’ electronic medical records were retrospectively reviewed. Neurocognitive test results were compared using Student’s t-test according to their chief complaint, depressive symptoms, childhood history, and intelligence quotient (IQ). Neurocognitive characteristics affecting subjective symptoms of ADHD were analyzed by linear regression.
Results:
The study included 106 patients. They did not have significant deficits in neurocognitive tests. Patients with depressive symptoms showed more impulsive responses (hit reaction time [p=0.037] and commission error [p=0.024]) and self-reported ADHD symptoms (p=0.001). Verbal (p=0.036) and visual memory (p=0.020) were significantly deficient in patients with a childhood ADHD diagnosis. Patients with a low IQ had significant deficits in various domains. Depressive symptoms and vigilance were significantly related to subjective symptoms of ADHD (adjusted R2=0.430, β=0.457, p=0.002).
Conclusion
Our results imply that the neurocognitive function of patients with subjective ADHD symptoms was not abnormal but was affected by depressive symptoms.
7.Neurocognitive Characteristics of Patients Who Visited a Psychiatric Outpatient Clinic Requesting Treatment for Adult Attention-Deficit/Hyperactivity Disorder
Seon Young PARK ; Yoosuk AN ; Sunghyun PARK ; Min-Sup SHIN ; Ung Gu KANG
Psychiatry Investigation 2024;21(9):958-970
Objective:
This study investigated the neurocognitive characteristics of patients who visited an outpatient clinic requesting diagnosis and treatment for adult attention-deficit/hyperactivity disorder (ADHD).
Methods:
The patients’ electronic medical records were retrospectively reviewed. Neurocognitive test results were compared using Student’s t-test according to their chief complaint, depressive symptoms, childhood history, and intelligence quotient (IQ). Neurocognitive characteristics affecting subjective symptoms of ADHD were analyzed by linear regression.
Results:
The study included 106 patients. They did not have significant deficits in neurocognitive tests. Patients with depressive symptoms showed more impulsive responses (hit reaction time [p=0.037] and commission error [p=0.024]) and self-reported ADHD symptoms (p=0.001). Verbal (p=0.036) and visual memory (p=0.020) were significantly deficient in patients with a childhood ADHD diagnosis. Patients with a low IQ had significant deficits in various domains. Depressive symptoms and vigilance were significantly related to subjective symptoms of ADHD (adjusted R2=0.430, β=0.457, p=0.002).
Conclusion
Our results imply that the neurocognitive function of patients with subjective ADHD symptoms was not abnormal but was affected by depressive symptoms.
8.Differentiation of Mass-Forming Autoimmune Pancreatitis from Pancreatic Cancer Using A 2-Week Steroid Trial.
Jeongseok KIM ; Jin Yong KIM ; Dong Uk KANG ; Hocheol KIM ; Min Young MOON ; Sunghyun WON ; Myung Hwan KIM
Korean Journal of Medicine 2013;85(6):609-613
The differentiation of mass-forming autoimmune pancreatitis (AIP) from pancreatic cancer is critical because AIP can be successfully treated with steroid therapy and unnecessary surgery avoided. We herein report a case of 69-year-old male with a prior history of recurrent AIP who developed a pancreatic body mass with upstream duct dilatation. Laboratory findings were nonspecific for AIP or pancreatic cancer, although an endoscopic ultrasonography-guided biopsy revealed chronic inflammation. To differentiate mass-forming AIP from pancreatic cancer, we administered oral steroids for 2 weeks. After steroid therapy, a computed tomography scan revealed a decrease in the pancreatic mass size and improvement in dilatation of the upstream duct. So we could differentiate mass-forming AIP from pancreatic cancer; thereafter resolution of pancreatic lesion could be achieved with further steroid therapy. In conclusion, a 2-week steroid trial followed by radiologic imaging was helpful to differentiate mass-forming AIP from pancreatic cancer.
Aged
;
Biopsy
;
Dilatation
;
Humans
;
Inflammation
;
Male
;
Pancreatic Neoplasms*
;
Pancreatitis*
;
Steroids
;
Unnecessary Procedures
9.Comparative profiling by data-independent acquisition mass spectrometry reveals featured plasma proteins in breast cancer: a pilot study
Kyung-Hwak YOON ; Hyosub CHU ; Hyeonji KIM ; Sunghyun HUH ; Eun-Kyu KIM ; Un-Beom KANG ; Hee-Chul SHIN
Annals of Surgical Treatment and Research 2024;106(4):195-202
Purpose:
Breast cancer is known to be influenced by genetic and environmental factors, and several susceptibility genes have been discovered. Still, the majority of genetic contributors remain unknown. We aimed to analyze the plasma proteome of breast cancer patients in comparison to healthy individuals to identify differences in protein expression profiles and discover novel biomarkers.
Methods:
This pilot study was conducted using bioresources from Seoul National University Bundang Hospital’s Human Bioresource Center. Serum samples from 10 breast cancer patients and 10 healthy controls were obtained. Liquid chromatography-mass spectrometry analysis was performed to identify differentially expressed proteins.
Results:
We identified 891 proteins; 805 were expressed in the breast cancer group and 882 in the control group. Gene set enrichment and differential expression analysis identified 30 upregulated and 100 downregulated proteins in breast cancer. Among these, 10 proteins were selected as potential biomarkers. Three proteins were upregulated in breast cancer patients, including cluster of differentiation 44, eukaryotic translation initiation factor 2-α kinase 3, and fibronectin 1. Seven proteins downregulated in breast cancer patients were also selected: glyceraldehyde-3-phosphate dehydrogenase, α-enolase, heat shock protein member 8, integrin‑linked kinase, tissue inhibitor of metalloproteinases-1, vasodilatorstimulated phosphoprotein, and 14-3-3 protein gamma. All proteins had been previously reported to be related to tumor development and progression.
Conclusion
The findings suggest that plasma proteome profiling can reveal potential diagnostic biomarkers for breast cancer and may contribute to early detection and personalized treatment strategies. A further validation study with a larger sample cohort of breast cancer patients is planned.
10.Differential Activation of Ras/Raf/MAPK Pathway between Heart and Cerebral Artery in Isoproterenol-induced Cardiac Hypertrophy.
Hyunju KIM ; Nari KIM ; Hyun JOO ; Jae Boum YOUM ; Won Sun PARK ; Mohamed WARDA ; Sunghyun KANG ; Vu Thi THU ; Tran Minh KHOA ; Jin HAN
The Korean Journal of Physiology and Pharmacology 2005;9(5):299-304
Cardiac hypertrophy contributes an increased risk to major cerebrovascular events. However, the molecular mechanisms underlying cerebrovascular dysfunction during cardiac hypertrophy have not yet been characterized. In the present study, we examined the molecular mechanism of isoproterenol (ISO) -evoked activation of Ras/Raf/MAPK pathways as well as PKA activity in cerebral artery of rabbits, and we also studied whether the activations of these signaling pathways were altered in cerebral artery, during ISO-induced cardiac hypertrophy compared to heart itself. The results show that the mRNA level of c-fos (not c-jun and c-myc) in heart and these genes in cerebral artery were considerably increased during cardiac hypertrophy. These results that the PKA activity and activations of Ras/Raf/ERK cascade as well as c-fos expression in rabbit heart during cardiac hypertrophy were consistent with previous reports. Interestingly, however, we also showed a novel finding that the decreased PKA activity might have differential effects on Ras and Raf expression in cerebral artery during cardiac hypertrophy. In conclusion, there are differences in molecular mechanisms between heart and cerebral artery during cardiac hypertrophy when stimulated with beta2 adrenoreceptor (AR), suggesting a possible mechanism underlying cerebrovascular dysfunction during cardiac hypertrophy.
Cardiomegaly*
;
Cerebral Arteries*
;
Heart*
;
Isoproterenol
;
Rabbits
;
RNA, Messenger