During the celebration of the 50th anniversary of the founding of the Korean Cancer Association, articles published in Cancer Research and Treatment from 2004 to 2023 were assessed based on the subject and design of each study. Based on this analysis, trends in domestic cancer research were inferred and directions were suggested for the future development of Cancer Research and Treatment.

During the celebration of the 50th anniversary of the founding of the Korean Cancer Association, articles published in Cancer Research and Treatment from 2004 to 2023 were assessed based on the subject and design of each study. Based on this analysis, trends in domestic cancer research were inferred and directions were suggested for the future development of Cancer Research and Treatment.

OBJECTIVE: To investigate the effect of LINC00641 on the viability and apoptosis of acute myeloid leukemia (AML) cells and its mechanism. METHODS: RT-qPCR was applied to detect the relative expression levels of LINC00641, miR-204-5p, and MT1X in human normal bone marrow stromal cell lines HS-5 and AML cell lines, and to screen the optimal cell line THP-1 was screened for subsequent experiments. Bioinformatics, dual luciferase reporter assay, pull down assay, and RIP assay were applied to validate the targeting relationship between LINC00641, MT1X and miR-204-5p. EdU, CCK-8, flow cytometry, and Transwell assay were applied to detect cell proliferation, apoptosis, migration and invasion, respectively. Western blot was applied to detect the expression of MT1X , CyclinD1, Bcl-2, and Bax proteins. RESULTS: Compared with HS-5 cells, the expression of LINC00641 and MT1X was obviously increased in HL60, THP-1, U937, and KG1 cells, while the expression of miR-204-5p was obviously reduced (all P <0.05). THP-1 cells showed the most obvious changes (P <0.05). Silencing LINC00641 or overexpressing miR-204-5p was able to obviously inhibit the proliferation, migration and invasion of THP-1 cells, as well as the expression of CyclinD1 and Bcl-2 proteins, while promote cells apoptosis and Bax protein expression (all P <0.05). Bioinformatics analysis, dual luciferase reporter assay, pull down assay, and RIP assay all confirmed that there were targeted relationships between LINC00641, MT1X and miR-204-5p. Inhibiting miR-204-5p or overexpressing MT1X was able to respectively reverse the inhibitory effect of silencing LINC00641 or overexpressing miR-204-5p on THP-1 cells proliferation, migration and invasion, and reduce cells apoptosis. CONCLUSION LINC00641 is highly expressed in AML, and inhibition of LINC00641 expression can inhibit cell proliferation, migration, and invasion and increase apoptosis by regulating the miR-204-5p/MT1X axis.
Humans ; Apoptosis ; Leukemia, Myeloid, Acute/pathology* ; MicroRNAs ; Cell Proliferation ; RNA, Long Noncoding/genetics* ; Cell Movement ; Cell Survival ; Cell Line, Tumor ; HL-60 Cells

In recent years, cardiovascular disease has become a common disease. With the development of machine learning and big data technologies, the processing ability of electrocardiogram (ECG) signals has been greatly enhanced through new computer technologies, enabling the auxiliary diagnosis technology for cardiovascular disease (CVD) to achieve new improvements. This article discusses the application of machine learning in ECG processing, especially in the auxiliary diagnosis of diseases. Firstly, the conventional signal preprocessing methods are introduced, and then the EEG signal processing methods based on feature extraction and fuzzy classification are explored. Secondly, the application of auxiliary diagnosis in CVD is further summarized. Finally, the advantages and disadvantages of the two methods are analyzed, and based on this, a design of an auxiliary diagnostic system compatible with the two methods is proposed, providing a new perspective for similar applied researches in the future.
Machine Learning ; Cardiovascular Diseases/diagnosis* ; Humans ; Electrocardiography ; Signal Processing, Computer-Assisted ; Diagnosis, Computer-Assisted ; Fuzzy Logic ; Electroencephalography

During the celebration of the 50th anniversary of the founding of the Korean Cancer Association, articles published in Cancer Research and Treatment from 2004 to 2023 were assessed based on the subject and design of each study. Based on this analysis, trends in domestic cancer research were inferred and directions were suggested for the future development of Cancer Research and Treatment.

INTRODUCTION: Obstructive sleep apnoea (OSA) is common in Singapore, with moderate to severe OSA affecting around 30% of residents. These consensus statements aim to provide scientifically grounded recommendations for the management of OSA, standar-dise the management of OSA in Singapore and promote multidisciplinary collaboration. METHOD: An expert panel, which was convened in 2024, identified several areas of OSA management that require guidance. The expert panel reviewed the current literature and developed consensus statements, which were later independently voted on using a 3-point Likert scale (agree, neutral or disagree). Consensus (total ratings of agree and neutral) was set a priori at ≥80% agreement. Any statement not reaching consensus was excluded. RESULTS: The final consensus included 49 statements that provide guidance on the screening, diagnosis and management of adults with OSA. Additionally, 23 statements on the screening, diagnosis and management of paediatric OSA achieved consensus. These 72 consensus statements considered not only the latest clinical evidence but also the benefits and harms, resource implications, feasibility, acceptability and equity impact of the recommendations. CONCLUSION The statements presented in this paper aim to guide clinicians based on the most updated evidence and collective expert opinion from sleep specialists in Singapore. These recommendations should augment clinical judgement rather than replace it. Management decisions should be individualised, taking into account the patient's clinical characteristics, as well as patient and caregiver concerns and preferences.
Humans ; Sleep Apnea, Obstructive/diagnosis* ; Singapore ; Consensus ; Adult

Metachromatic leukodystrophy (MLD) is an inherited disease caused by a deficiency of the enzyme arylsulfatase A (ARSA). Lentivirus-modified autologous hematopoietic stem cell gene therapy (HSCGT) has recently been approved for clinical use in pre and early symptomatic children with MLD to increase ARSA activity. Unfortunately, this advanced therapy is not available for most patients with MLD who have progressed to more advanced symptomatic stages at diagnosis. Patients with late-onset juvenile MLD typically present with a slower neurological progression of symptoms and represent a significant burden to the economy and healthcare system, whereas those with early onset infantile MLD die within a few years of symptom onset. We conducted a pilot study to determine the safety and benefit of HSCGT in patients with postsymptomatic juvenile MLD and report preliminary results. The safety profile of HSCGT was favorable in this long-term follow-up over 9 years. The most common adverse events (AEs) within 2 months of HSCGT were related to busulfan conditioning, and all AEs resolved. No HSCGT-related AEs and no evidence of distorted hematopoietic differentiation during long-term follow-up for up to 9.6 years. Importantly, to date, patients have maintained remarkably improved ARSA activity with a stable disease state, including increased Functional Independence Measure (FIM) score and decreased magnetic resonance imaging (MRI) lesion score. This long-term follow-up pilot study suggests that HSCGT is safe and provides clinical benefit to patients with postsymptomatic juvenile MLD.
Humans ; Leukodystrophy, Metachromatic/genetics* ; Pilot Projects ; Genetic Therapy/methods* ; Hematopoietic Stem Cell Transplantation ; Male ; Follow-Up Studies ; Female ; Lentivirus/genetics* ; Child ; Child, Preschool ; Hematopoietic Stem Cells/metabolism* ; Cerebroside-Sulfatase/metabolism* ; Adolescent

To establish a method for determining 26 inorganic elements in earthworm polypeptide and determine the elemental content in different batches of earthworm polypeptide, microwave digestion method was used to pre-treat the samples, and ICP-MS method was used to determine the content of 26 elements in different batches of earthworm polypeptide. The linear relationships of 26 elements were good in the range of 0-1 000 μg·L^-1, with R² greater than 0.999, precision RSD 0.21%-2.71%, repeatability RSD 0.19%-4.69%, stability RSD 0.11%-4.24%, and recovery rates of 82.41%-116.16%. The data was plotted using Origin 2022 software to characterize the distribution of elements content. SPSS 27.0 was used for principal component analysis, and SIMCA 14.1 software was used for OPLS-DA analysis. The results showed that among the 26 elements, the higher content of earthworm polypeptide was K, Na, and Ca, followed by Zn, Fe, Al, B and other trace elements, In, Sc, Co, Pb, Bi and other elements had little or no detectable content, and there were differences in the content of polypeptide in different batches. This study provides a theoretical basis for the production quality control, quality evaluation and drug efficacy application of earthworm polypeptide through the determination and analysis of the elements and content of earthworm polypeptide.

Objective:To analyze the feasibility and clinical efficacy of mirror reconstruction in total hip arthroplasty (THA) assisted by visual treatment solution (VTS) for patients with Crowe type II-III developmental dysplasia of the hip (DDH).Methods:Included in this study were 67 patients (67 hips) with unilateral Crowe type II-III DDH undergoing primary THA from June 2022 to August 2023. According to the reconstruction position of the rotation center, the patients were divided into mirror group and high group. There were 37 patients (37 hips) in the mirror group, reconstructed by referring to the rotation center of contralateral normal hip, with 8 males and 27 females, aged 40.9±16.7 years old and 30 patients (30 hips) in the high group, reconstructed by the "high hip center" strategy, with 7 males and 23 females, aged 38.3±11.1 years old. The radiographic results between the affected hip and the normal hip in 12 months postoperatively and the clinical results before and after the operation were compared.Results:All the operations for patients with Crowe type II-III DDH were completed successfully. The operation time, intraoperative blood loss and the follow-up time in the mirror group were 113.9±22.9 min, 287.8 ±181.6 ml and 12.8±1.8 months, respectively, while those in the high group were 118.0±26.2 min, 293.3±125.8 ml and 13.7±2.3 months respectively without significant difference between the two groups. In 12 months postoperatively the rotation center height, greater trochanter height and femoral offset of 37 hips in the mirror group were 16.1±3.8 mm, 17.7±5.2 mm and 34.4 ±5.1 mm, respectively, which were not significantly different from those of the normal side, while the HHS and WOMAC osteoarthritis index were significantly improved compared to those before operation from 32.3±5.3 and 76.9±5.4 points to 84.3±6.3 and 9.4±2.5 points ( t=-34.222, P<0.001; t=64.486, P<0.001). In the high group, the rotational center height, greater trochanter height and femoral offset of 30 hips were 27.9±3.7 mm, 25.4 ±7.9 mm and 35.4 ±6.2 mm, respectively, which were significantly higher than those in the normal side ( t=-15.706, P<0.001; t=-6.494, P<0.001; t=-2.555, P=0.016), and the HHS and WOMAC osteoarthritis index were significantly improved compared to those before operation from 30.9±4.8 and 78.7±5.3 points to 79.5±4.9 and 13.9±3.3 points ( t=-37.339, P<0.001; t=64.375, P<0.001). The HHS and WOMAC osteoarthritis index in the mirror group significantly improved compared with the high group in 12 months postoperatively ( t=3.404, P=0.001; t=-6.315, P<0.001). The X-ray at last follow-up showed that all prostheses were in a stable position. Conclusion:Compared with the high hip center reconstruction, satisfactory outcomes in terms of functional recovery and radiographic evaluation could be achieved in patients with Crowe type II-III DDH undergoing VTS-assisted THA of mirror reconstruction. The application of mirror reconstruction is expected to achieve the goal of restoring the anatomical structure and function of the primary hip after THA.

Objective:To investigate the stability and feasibility of using absorbable screws during Bernese periacetabular osteotomy.Methods:A retrospective analysis was conducted on a 36 year-old woman diagnosed with developmental dysplasia of the hip, who had undergone Bernese periacetabular osteotomy. Finite element analysis was used to simulate the stability of the acetabulum under loads of 10%, 20%, 50%, and 100% of the patient's weight. The structural stiffness of the pelvis and the maximum equivalent stress on the absorbable screws were observed under different conditions, including whether the acetabular bone block and the ilium were in contact, whether 3 or 4 screws were used, and whether a graft (including fibular cortical bone and PEEK grafts) was used.Results:The structural stiffness of the pelvis fixed with four screws increased by 67%-94% compared to that with three screws. After using a graft, the structural stiffness of the pelvis increased by 50%-83%. As the load increased, the maximum equivalent stress on the screws also increased. When the acetabular bone block and the ilium had no contact, no graft was used, and only three screws were used for fixation, the maximum equivalent stress could reach 518.9 MPa, while this value dropped to 61% when four screws were used (318.7 MPa). When the acetabular bone block and the ilium were in contact, the maximum equivalent stress was about 12% of that when there was no contact, regardless of the number of screws used. When a cortical bone graft or a PEEK graft was used, the maximum equivalent stress could drop to 21%-26% of that without a graft. When the screw strength was 130 MPa, a load of 20% of body weight was applied, and only three screws were used without a graft, the equivalent stress could exceed the strength of the screw; if four screws were used, the equivalent stress was slightly higher than the strength of the screw when a load of 50% of body weight was applied. However, when a graft was used (either cortical bone or PEEK), even when a load of 100% of body weight was applied, the equivalent stress was slightly lower than the strength of the screw.Conclusion:Absorbable screws can provide sufficient stability for Bernese periacetabular osteotomy. The contact between the acetabular bone block and the ilium, an increase in the number of screws, and the use of grafts (cortical bone and PEEK grafts) can further improve stability. Therefore, absorbable screws have broad application prospects in Bernese periacetabular osteotomy.