1.Response surface analyses of antihypertensive effects of angiotensin receptor blockers and amlodipine or hydrochlorothiazide combination therapy in patients with essential hypertension
Minhee CHO ; Eunsook OH ; Byungjin AHN ; MoonTae YOON
Translational and Clinical Pharmacology 2023;31(3):154-166
While previous studies have examined the dose-response characteristics of certain antihypertensive drugs alone or in combination, response surface analysis for combination therapies involving angiotensin receptor blockers (ARBs) and either amlodipine (AML) or hydrochlorothiazide (HCT) has not been explored, particularly in the context of lowdose combinations. The objectives of present study were to generate useful dose-response information for the combination of ARB/AML or ARB/HCT and to predict the blood pressure lowering effects of combination therapies compared to monotherapies. We reviewed the New Drug Application data of combination drugs of ARB/AML and ARB/HCT. Data on systolic blood pressure (SBP), from studies conducted using a factorial dose-response design over a period of 8–12 weeks, were used. The placebo-subtracted SBP change was used for analysis. Response surface analyses of the collected data were conducted using a polynomial regression model. For ARB/AML combination, the quadratic polynomial regression model containing two linear terms, two quadratic terms, and one interaction term was best fitted to the naïve pooled data. Meanwhile, for ARB/HCT combination, the best-fitted model was a quadratic model that included two linear terms and two quadratic terms. The 1/2-dose combination of these medications, compared to each monotherapy, resulted in predicted SBP reductions that were 8–30% greater. The ratio of the estimated antihypertensive effects of the combination to the expected additive effects of each component ranged from 82% to 100% of the expected effect. These results can provide a rationale for developing lower-dose combinations of ARB/AML or ARB/HCT and assist in designing clinical trials.
2.Evidence-based Clinical Nursing Practice Guideline for Management of Inpatient Falls: Adopting the Guideline Adaptation Process
Insook CHO ; Kyung Hee PARK ; Minhee SUH ; Eun Man KIM
Journal of Korean Academy of Fundamental Nursing 2020;27(1):40-51
Purpose:
Despite research efforts, current fall rates are still higher than expected. To approach this problem, we developed guidelines on preventing falls in hospitals.
Methods:
Four guidelines were selected by the K-AGREE II process. Recommendations from each guideline were retrieved and evaluated based on the quality of evidence and the strength of the recommendations. Recommendations followed the grading system of the Korean Hospital Nurses Association’s Guideline Adaptation Manual. In the external review, 13 practice nurses from 5 hospitals and 13 panel experts including doctors, nursing managers, and pharmacists participated.
Results:
The final guideline consisted of 5 sections and 341 recommendations. The first two sections were composed of recommendations for institutional readiness for change process and management, and Section 3 was divided into assessment of risk factors, preventive intervention and post-fall management. The summary of falls risk factors included seven components. Multifaceted interventions were modeled into six strategies. The final sections consisted of recommendations for implementing fall improvement programs and for sustaining effective prevention programs.
Conclusion
Given that falls result from various combinations of risk factors, the present guideline contains multifaceted assessments and interventions including risk-targeted strategy. This guideline will contribute to decreasing fall rates in hospitals by stimulating compliance with evidence-based practice.
3.Recent Patient Health Monitoring Platforms Incorporating Internet of Things-Enabled Smart Devices.
Minhee KANG ; Eunkyoung PARK ; Baek Hwan CHO ; Kyu Sung LEE
International Neurourology Journal 2018;22(Suppl 2):S76-S82
Synergistic integration of the Internet of Things (IoT), cloud computing, and big data technologies in healthcare have led to the notion of “smart health.” Smart health is an emerging concept that refers to the provision of healthcare services for prevention, diagnosis, treatment, and follow-up management at any time or any place by connecting information technologies and healthcare. As a significant breakthrough in smart healthcare development, IoT-enabled smart devices allow medical centers to carry out preventive care, diagnosis, and treatment more competently. This review focuses on recently developed patient health monitoring platforms based on IoT-enabled smart devices that can collect real-time patient data and transfer information for assessment by healthcare providers, including doctors, hospitals, and clinics, or for self-management. We aimed to summarize the available information about recently approved devices and state-of-the-art developments through a comprehensive, systematic literature review. In this review, we also discuss possible future directions for the integration of cloud computing and blockchain, which may offer unprecedented breakthroughs in on-demand medical services. The combination of IoT with real-time, remote patient monitoring empowers patients to assert more control over their care, thereby allowing them to actively monitor their particular health conditions.
Cloud Computing
;
Delivery of Health Care
;
Diagnosis
;
Follow-Up Studies
;
Health Personnel
;
Humans
;
Internet*
;
Monitoring, Physiologic
;
Self Care
4.Recent Patient Health Monitoring Platforms Incorporating Internet of Things-Enabled Smart Devices.
Minhee KANG ; Eunkyoung PARK ; Baek Hwan CHO ; Kyu Sung LEE
International Neurourology Journal 2018;22(4):313-313
Due to a mistake in reference by the author submission in this article, an erroneous grant number had been published.
5.Detecting Bladder Biomarkers for Closed-Loop Neuromodulation: A Technological Review.
Eunkyoung PARK ; Jae Woong LEE ; Minhee KANG ; Kyeongwon CHO ; Baek Hwan CHO ; Kyu Sung LEE
International Neurourology Journal 2018;22(4):228-236
Neuromodulation was introduced for patients with poor outcomes from the existing traditional treatment approaches. It is well-established as an alternative, novel treatment option for voiding dysfunction. The current system of neuromodulation uses an open-loop system that only delivers continuous stimulation without considering the patient’s state changes. Though the conventional open-loop system has shown positive clinical results, it can cause problems such as decreased efficacy over time due to neural habituation, higher risk of tissue damage, and lower battery life. Therefore, there is a need for a closed-loop system to overcome the disadvantages of existing systems. The closed-loop neuromodulation includes a system to monitor and stimulate micturition reflex pathways from the lower urinary tract, as well as the central nervous system. In this paper, we reviewed the current technological status to measure biomarker for closed-loop neuromodulation systems for voiding dysfunction.
Biomarkers*
;
Central Nervous System
;
Humans
;
Implantable Neurostimulators
;
Reflex
;
Urinary Bladder Diseases
;
Urinary Bladder*
;
Urinary Tract
;
Urination
6.Methylation Profiles of CpG Island Loci in Major Types of Human Cancers.
Seog Yun PARK ; Baek Hee KIM ; Jeong Ho KIM ; Nam Yun CHO ; Minhee CHOI ; Eun Joo YU ; Sun LEE ; Gyeong Hoon KANG
Journal of Korean Medical Science 2007;22(2):311-317
Several reports have described aberrant methylation in various types of human cancers. However, the interpretation of methylation frequency in various human cancers has some limitations because of the different materials and methods used for methylation analysis. To gain an insight into the role of DNA hypermethylation in human cancers and allow direct comparison of tissue specific methylation, we generated methylation profiles in 328 human cancers, including 24 breast, 48 colon, 61 stomach, 48 liver, 37 larynx, 24 lung, 40 prostate, and 46 uterine cervical cancer samples by analyzing CpG island hypermethylation of 13 genes using methylation-specific PCR. The mean numbers of methylated genes were 6.5, 4.4, 3.6, 3.4, 3.1, 3.1, 3.1, and 2.1 in gastric, liver, prostate, larynx, colon, lung, uterine cervix, and in breast cancer samples, respectively. The number of genes that were methylated at a frequency of more than 40% in each tumor type ranged from nine (stomach) to one (breast). Generally genes frequently methylated in a specific cancer type differed from those methylated in other cancer types. The findings indicate that aberrant CpG island hypermethylation is a frequent finding in human cancers of various tissue types, and each tissue type has its own distinct methylation pattern.
Quantitative Trait Loci/*genetics
;
Polymerase Chain Reaction
;
Neoplasms/*genetics
;
Humans
;
Genetic Predisposition to Disease/genetics
;
Gene Frequency/genetics
;
DNA, Neoplasm/*genetics
;
*DNA Methylation
;
CpG Islands/*genetics
;
Chromosome Mapping/*methods
7.Effect of Abciximab on the Levels of Circulating Microparticles in Patients with Acute Myocardial Infarction Treated by Primary Angioplasty.
Jung Joon CHA ; Jong Youn KIM ; Eui Young CHOI ; Pil Ki MIN ; Minhee CHO ; Da Lyung LEE ; Sung Yu HONG ; Young Won YOON ; Byoung Kwon LEE ; Bum Kee HONG ; Se Joong RIM ; Hyuck Moon KWON
Korean Circulation Journal 2013;43(9):600-606
BACKGROUND AND OBJECTIVES: We investigated the effect of the additional use of abciximab during percutaneous coronary intervention (PCI) on the level of procoagulant microparticles (MPs) in patients with ST-segment elevation myocardial infarction (STEMI) who had undergone primary PCI. SUBJECTS AND METHODS: In this study, we studied 86 patients with STEMI (72 men, age 58+/-13) who had undergone primary PCI. The decision to administer abciximab immediately prior to PCI was left to the discretion of the operator. Blood samples for analysis of MPs were obtained from the femoral artery before and after PCI. MPs with procoagulant potential were measured using a commercial kit. The cellular origins of MPs were determined by antigenic capture with specific antibodies. RESULTS: Procoagulant MPs captured onto annexin V were not changed significantly after PCI {13.4+/-13.2 nM vs. 13.2+/-16.1 nM phosphatidylserine equivalent (PS eq), p=0.479}. Abciximab was used in 30 of 86 patients (35%) immediately prior to PCI. In patients who had undergone PCI without abciximab, no significant change in the level of MPs was observed after PCI. However, in the abciximab group, the level of circulating MPs was significantly decreased after PCI (12.0+/-10.7 nM vs. 7.8+/-11.7 nM PS eq, p=0.018). Levels of endothelial- and platelet-derived MPs also showed a significant reduction after PCI in the abciximab group. CONCLUSION: Primary PCI with additional abciximab significantly reduced the level of procoagulant MPs regardless of their cellular origins in patients with STEMI.
Angioplasty
;
Annexin A5
;
Antibodies, Monoclonal
;
Cell-Derived Microparticles
;
Femoral Artery
;
Humans
;
Immunoglobulin Fab Fragments
;
Male
;
Myocardial Infarction
;
Percutaneous Coronary Intervention
;
Platelet Aggregation Inhibitors
8.Gintonin, an exogenous ginseng-derived LPA receptor ligand, promotes corneal wound healing.
Hyeon Joong KIM ; Joon Young KIM ; Byung Hwan LEE ; Sun Hye CHOI ; Hyewon RHIM ; Hyoung Chun KIM ; Seoung Yob AHN ; Soon Wuk JEONG ; Minhee JANG ; Ik Hyun CHO ; Seung Yeol NAH
Journal of Veterinary Science 2017;18(3):387-397
Ginseng gintonin is an exogenous ligand of lysophosphatidic acid (LPA) receptors. Accumulating evidence shows LPA helps in rapid recovery of corneal damage. The aim of this study was to evaluate the therapeutic efficacy of gintonin in a rabbit model of corneal damage. We investigated the signal transduction pathway of gintonin in human corneal epithelium (HCE) cells to elucidate the underlying molecular mechanism. We next evaluated the therapeutic effects of gintonin, using a rabbit model of corneal damage, by undertaking histochemical analysis. Treatment of gintonin to HCE cells induced transient increases of [Ca²⁺](i) in concentration-dependent and reversible manners. Gintonin-mediated mobilization of [Ca²⁺](i) was attenuated by LPA1/3 receptor antagonist Ki16425, phospholipase C inhibitor U73122, inositol 1,4,5-triphosphate receptor antagonist 2-APB, and intracellular Ca²⁺ chelator BAPTA-AM. Gintonin facilitated in vitro wound healing in a concentration-dependent manner. When applied as an eye-drop to rabbits with corneal damage, gintonin rapidly promoted recovery. Histochemical analysis showed gintonin decreased corneal apoptosis and increased corneal cell proliferation. We demonstrated that LPA receptor activation by gintonin is linked to in vitro and in vivo therapeutic effects against corneal damage. Gintonin can be applied as a clinical agent for the rapid healing of corneal damage.
Apoptosis
;
Cell Proliferation
;
Corneal Injuries
;
Epithelium, Corneal
;
Humans
;
In Vitro Techniques
;
Inositol 1,4,5-Trisphosphate
;
Mortuary Practice
;
Panax
;
Rabbits
;
Receptors, Lysophosphatidic Acid
;
Signal Transduction
;
Therapeutic Uses
;
Type C Phospholipases
;
Wound Healing*
;
Wounds and Injuries*