ABSTRACT
PURPOSE: To correlate epigenetic patterns with ethnoracial status and locoregional therapy (LRT) response in patients with hepatocellular carcinoma (HCC). MATERIALS AND METHODS: DNA and RNA were extracted from 47 distinct formalin-fixed paraffin-embedded tumor samples from 42 patients with HCC (n = 14 Black, n = 19 White, n = 9 Hispanic). LRT response was determined using computed tomography (CT) or magnetic resonance (MR) imaging 3 months posttreatment of 35 tumors (n = 22 complete response, n = 13 retreatment candidates). RNA expression and DNA methylation were used to stratify patients by ethnoracial status and treatment response using partial least-squares discriminant analysis (PLS-DA). Results were validated using hierarchical clustering. Ingenuity pathway analysis was performed to identify upstream regulators and pathways. RESULTS: PLS-DA identified 100 genes and 12 methylated regions that differentiated tumors from Black from White/Hispanic patients. Hierarchical clustering clustered samples with the top 16 genes or the top 5 methylation regions. Dysregulated pathways included adrenomedullin pathway (P = .030), EIF2 signaling (P = .007), and several metabolic pathways. AGTR1 (log2fold = 1.59) and GSTM3 (log2fold = 2.53) represented potential differentially expressed therapeutic targets. PLS-DA identified 100 genes and 150 methylation regions that differentiated between complete responders and retreatment candidates. Hierarchical clustering clustered samples with the top 30 genes or the top 13 methylation regions. Dysregulated pathways included metabolic and DNA repair-related pathways. ASAP2 (log2fold = 0.29) and RAD50 (log2fold = 0.22) represented potential differentially expressed therapeutic targets. CONCLUSIONS: Variation in gene expression and DNA methylation patterns in patients with HCC corresponded to ethnoracial status and LRT response. These initial results suggest tumor profiling has the potential to close ethnoracial disparities and improve treatment stratification.
Subject(s)
Carcinoma, Hepatocellular , DNA Methylation , Epigenesis, Genetic , Liver Neoplasms , Adult , Aged , Female , Humans , Male , Middle Aged , Biomarkers, Tumor/genetics , Black or African American/genetics , Carcinoma, Hepatocellular/genetics , Gene Expression Profiling , Gene Expression Regulation, Neoplastic , Liver Neoplasms/genetics , Magnetic Resonance Imaging , Retrospective Studies , Tomography, X-Ray Computed , Treatment Outcome , White , Hispanic or LatinoABSTRACT
BACKGROUND: Dying at home accompanied by loved-ones is regarded favorably and brings good luck in Taiwan. This study aimed to examine the relevant factors affecting whether an individual dies at home or not in a group of terminal patients receiving palliative home care service. METHODS: The patients who were admitted to a palliative home care service at a hospital-affiliated home health care agency were consecutively enrolled between March 1, 2021 and March 31, 2022. During the period of care, the instruments of the palliative care outcomes collaboration was used to assess patients in each home visit twice a week, including symptom assessment scale, palliative care problem severity score, Australia-modified Karnofsky performance status, resource utilization groups-activities of daily living, and palliative care phase. RESULTS: There were 56 participants (53.6% female) with a median age of 73.0 years (interquartile range (IQR) 61.3-80.3 y/o), of whom 51 (91.1%) patients were diagnosed with cancer and 49 (96.1%) had metastasis. The number of home visits was 3.5 (IQR 2.0-5.0) and the average number of days under palliative home care service was 31 (IQR 16.3-51.5) before their death. After the end of the study, there was a significant deterioration of sleeping, appetite, and breathing problems in the home-death group, and appetite problems in the non-home death patients. However, physician-reported psychological/spiritual problems improved in the home-death group, and pain improved in the non-home death patients. Physical performance deteriorated in both groups, and more resource utilization of palliative care was needed. The 44 patients who died at home had greater cancer disease severity, fewer admissions, and the proportion of families desiring a home death for the patient was higher. CONCLUSIONS: Although the differences in palliative outcome indicators were minor between patients who died at home and those who died in the hospital, understanding the determinants and change of indicators after palliative care service at different death places may be helpful for improving the quality of end-of-life care.
Subject(s)
Home Care Services , Neoplasms , Terminal Care , Humans , Female , Aged , Male , Activities of Daily Living , Palliative Care , Neoplasms/therapyABSTRACT
PURPOSE: We evaluated the association between intravesical prostate protrusion (IPP) and the detection rate of clinically significant prostate cancer (csPCa) on magnetic resonance imaging (MRI)-transrectal ultrasound (TRUS) fusion targeted biopsy (TB). MATERIALS AND METHODS: A total of 538 consecutive men who underwent MRI-TRUS fusion TB and concomitant systematic biopsy were evaluated. IPP on MRI was independently measured by 4 blinded reviewers. The primary outcome was per-lesion detection of csPCa on TB. We assessed the association between IPP and csPCa detection on TB, controlling for age, prostate specific antigen, Prostate Imaging Reporting and Data System® (PI-RADS®) score, prostate volume, targeted cores sampled and previous biopsy experience. RESULTS: A total of 847 PI-RADS 3 or greater lesions were targeted across 570 biopsies. Intra- and interrater reliability for measuring IPP was strong. A total of 81 (14.2%), 127 (22.3%), 237 (41.6%) and 125 (21.9%) men had 0, small, medium and large IPP, respectively. A total of 230, 392 and 196 lesions were PI-RADS 3, 4 and 5, respectively. Of the lesions 198 (34.7%) had csPCa on TB. The overall relationship between IPP size and csPCa found on TB was not significant; however, large IPP is associated with a significantly lower rate of csPCa detection than 0 IPP (p=0.007). Every mm increase in IPP is associated with a 5.6% decrease in the odds of csPCa detection on TB (p=0.004) and a 66.5% decrease in odds of detection in large IPP compared to 0 IPP (p=0.003). CONCLUSIONS: As the size of the IPP and volume increase, there is a decrease in the detection rate of csPCa on MRI-guided TB. These findings may be driven by poor MRI-TRUS co-registration and prostate asymmetry.
Subject(s)
Prostate , Prostatic Neoplasms , Humans , Image-Guided Biopsy/methods , Magnetic Resonance Imaging/methods , Male , Prostate/diagnostic imaging , Prostate/pathology , Prostatic Neoplasms/diagnostic imaging , Prostatic Neoplasms/pathology , Reproducibility of ResultsABSTRACT
OBJECTIVE: This study aimed to develop and validate a machine learning-based short measure to assess 5 functions (the ML-5F) (activities of daily living [ADL], balance, upper extremity [UE] and lower extremity [LE] motor function, and mobility) in patients with stroke. DESIGN: Secondary data from a previous study. A follow-up study assessed patients with stroke using the Barthel Index (BI), Postural Assessment Scale for Stroke (PASS), and Stroke Rehabilitation Assessment of Movement (STREAM) at hospital admission and discharge. SETTING: A rehabilitation unit in a medical center. PARTICIPANTS: Patients (N=307) with stroke. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The BI, PASS, and STREAM. RESULTS: A machine learning algorithm, Extreme Gradient Boosting, was used to select 15 items from the BI, PASS, and STREAM, and transformed the raw scores of the selected items into the scores of the ML-5F. The ML-5F demonstrated good concurrent validity (Pearson's r, 0.88-0.98) and responsiveness (standardized response mean, 0.28-1.01). CONCLUSIONS: The ML-5F comprises only 15 items but demonstrates sufficient concurrent validity and responsiveness to assess ADL, balance, UE and LE functions, and mobility in patients with stroke. The ML-5F shows great potential as an efficient outcome measure in clinical settings.
Subject(s)
Activities of Daily Living , Machine Learning , Stroke , Follow-Up Studies , Humans , Reproducibility of Results , Stroke/physiopathology , Stroke RehabilitationABSTRACT
This study compared prostate multiparametric MRI (mpMRI) performed using an 18-French rectal tube in place throughout the examination after initial placement by a technologist (n = 97) with mpMRI performed without rectal tube placement (n = 99). Acquisition parameters were otherwise identical. Two radiologists scored subjective image quality and measured rectal diameter. For both readers, rectal tube placement was associated (p < .001) with improved ADC map quality, decreased DWI distortion, decreased rectal gas, and decreased rectal diameter. Findings support routine rectal tube placement for prostate mpMRI.
Subject(s)
Image Enhancement , Multiparametric Magnetic Resonance Imaging/methods , Prostatic Neoplasms/diagnostic imaging , Aged , Artifacts , Flatulence/prevention & control , Humans , Male , Middle Aged , Multiparametric Magnetic Resonance Imaging/instrumentation , RectumABSTRACT
BACKGROUND: Day care service (DCS) provides various activities in a professional environment to meet the old people with functional limitations. However, relatively little is known about the effects of DCS on physical and mental functions. METHODS: This was a retrospective study that we used a comprehensive geriatric assessment to evaluate the changes before and after DCS among participants in a hospital-affiliated geriatric day care center in Taiwan. The burden of the participants' families was also assessed. RESULTS: The 18 participants with a median age of 80.9 (interquartile range (IQR) 75.2-86.6 y/o) were enrolled and followed up for 6 months. Based on the clinical dementia rating (CDR), disease stage was very mild in 3 participants, mild in 10, moderate in 3, and severe in 2. The activities of daily living (ADL) scores of the participants improved significantly from 75 (IQR 60.0-80.0) at baseline to 77.5 (IQR 65.0-90.0) at the 6 month (p < 0.001), and mini-mental state examination (MMSE) scores from 15 (IQR 11.5-20.0) to 18 (IQR 15.8-24.0) (p = 0.026). There was a positive correlation of baseline mini-nutritional assessment-short form score and the 3-level version of the European Quality of Life-5 dimensions utility index with both ADL and MMSE scores at the 6-month follow-up. In addition, the family burden scale was reduced from 22 to 15 (p = 0.002). CONCLUSIONS: The physical and cognitive functions in old people with dementia who received DCS were maintained or partially improved, and their families' stress burden was alleviated.
Subject(s)
Activities of Daily Living , Cognition , Day Care, Medical/psychology , Dementia/psychology , Functional Status , Aged , Aged, 80 and over , Caregivers/psychology , Female , Geriatric Assessment , Humans , Male , Mental Status and Dementia Tests , Nutrition Assessment , Quality of Life , Retrospective Studies , TaiwanABSTRACT
AIM: IgA nephropathy is virtually known as the most common glomerulopathy to end-stage renal failure in the world. Mycophenolate mofetil is a selective immunosuppressant widely used in organ transplantation, yet its tolerance and effectiveness in IgAN is controversial. METHODS: This is a systematic review and random-effects meta-analysis, searching PubMed, Embase, Te Cochrane Library, Science Citation Index, Ovid evidence-based medicine, Chinese Biomedical Literature and Chinese Science and Technology Periodicals. Screen out randomized controlled trials on patients with biopsy-proven IgA nephropathy and analysis mycophenolate mofetil treatment regimens used for therapy of IgA nephropathy. Complete remission and partial remission, doubling of creatinine level, proteinuria, incidence of end-stage kidney disease, infection, Cushing syndrome, diabetes, hepatic dysfunction or gastrointestinal symptoms, neurologic or visual ambiguity, acne, and alopecia were observed. RESULTS: Nine relevant trials were conducted with 587 patients enrolled. In Mycophenolate mofetil or plus medium/low-dose steroid comparing full-dose steroid alone or placebo, there was no significant difference. The risk of Cushing syndrome and diabetes had been significantly lowered with Mycophenolate mofetil-treated patients, while the risk of infection had been increased. CONCLUSIONS: Mycophenolate mofetil therapy did not differ in reducing proteinuria and Scr in patients with IgAN who had persistent proteinuria, while having fewer Cushing syndrome and diabetes risk and more infection risk. However, larger randomized studies are needed to reveal these results.
Subject(s)
Antibiotics, Antineoplastic/therapeutic use , Glomerulonephritis, IGA/drug therapy , Mycophenolic Acid/therapeutic use , Drug Therapy, Combination , Glucocorticoids/therapeutic use , Humans , Prednisone/therapeutic use , Randomized Controlled Trials as TopicABSTRACT
BACKGROUND: Sorafenib has been shown to prolong the progression free survival (PFS) of advanced radioiodine (RAI) refractory differentiated thyroid cancer (DTC) and has been approved by the FDA as the result of the phase III DECISION trial. Sorafenib has been reimbursed for the treatment of RAI refractory DTC in Taiwan since Jan 2017. High percentage of adverse events (AE) was noted in DECISION trial. We conducted a study to show the real-world experience of sorafenib in Taiwan. METHODS: We retrospectively collected the clinical data, including dose, AE, and PFS of sorafenib, of the DTC patients who received sorafenib treatment in National Cheng Kung University Hospital and China Medical University Hospital by chart review from 2012 to 2018. RESULTS: Thirty-six advanced DTC patients with progression were included in this study. The starting dose of sorafenib in most patients was 200 mg twice daily and the mean daily maintenance dose was 433 mg. Five patients had partial response (13.9%) and 28 patients had stable disease (77.8%). The median PFS was 17.3 months (95% confidence interval: 11.9-33.6 months). Daily maintenance dose ≥ 600 mg was associated with better PFS (median PFS, not reached). The most common toxicity of sorafenib was hand foot skin reaction (69%), followed by diarrhea (42%), and skin rash (33%). Most of the toxicities were grade I/II. CONCLUSION: Higher maintenance dose of sorafenib is associated with longer PFS while starting from half dose is feasible to minimize the incidence of high grade toxicities in the real-world use of sorafenib.
Subject(s)
Thyroid Neoplasms , Antineoplastic Agents/adverse effects , China , Humans , Iodine Radioisotopes/therapeutic use , Phenylurea Compounds/adverse effects , Retrospective Studies , Sorafenib/therapeutic use , Taiwan , Thyroid Neoplasms/drug therapyABSTRACT
A boy, aged 3 years and 8 months, had recurrent thrombocytopenia with hemolytic anemia for more than 3 years. The physical examination showed no enlargement of the liver, spleen, and lymph nodes or finger deformities. Laboratory results showed a negative result of the direct antiglobulin test, normal coagulation function, and increases in bilirubin, lactate dehydrogenase and reticulocytes. The results of von Willebrand factor-cleaving protease ADAMTS13 activity assay showed extreme deficiency, and antibody assay showed negative ADAMTS13 inhibitory autoantibodies. Next-generation sequence showed compound heterozygous mutation in the ADAMTS13 gene. The boy was diagnosed with congenital thrombotic thrombocytopenic purpura. This disease may be easily misdiagnosed as Evans syndrome and is difficult to diagnose in clinical practice. The child had developed the disease since birth, but it took 3 years to make a confirmed diagnosis. Therefore, congenital thrombotic thrombocytopenic purpura should be considered for children with jaundice at birth, recurrent thrombocytopenia with hemolytic anemia, and negative results of the direct antiglobulin test. The detection of ADAMTS13 activity and ADAMTS13 inhibitory autoantibodies should be performed as soon as possible for a definite diagnosis, and gene detection should be performed to make a confirmed diagnosis when necessary.
Subject(s)
Anemia, Hemolytic , Purpura, Thrombotic Thrombocytopenic , ADAM Proteins/genetics , ADAMTS13 Protein , Autoantibodies , Child, Preschool , Humans , Male , MutationABSTRACT
PURPOSE: To compare outcomes of unresectable hepatocellular-cholangiocarcinoma (HCC-CC) with hepatocellular carcinoma (HCC) after locoregional therapy (LRT). MATERIALS AND METHODS: Consecutive patients with histologically confirmed HCC-CC or HCC treated with LRT between 2007 and 2017 were retrospectively reviewed. Ten patients (8 men; median age, 60 y) with 12 HCC-CCs (mean diameter, 4.2 cm ± 1.9; mean number, 3.7 ± 3.3) treated with chemoembolization (n = 6), yttrium-90 radioembolization (n = 2), RF ablation (n = 1), or chemoembolization/RF ablation (n = 1) were compared with 124 patients (92 men; median age, 59 y) with 134 HCCs (mean diameter, 4.8 cm ± 4.0; mean number, 2.6 ± 2.2) treated with chemoembolization (n = 51), yttrium-90 radioembolization (n = 17), RF ablation (n = 41), or chemoembolization/RF ablation (n = 15). Propensity score-matched analysis with conditional logistic regression adjusted for age, sex, LRT modality, tumor-specific features, and Child-Pugh class. Tumor-volume doubling time (TVDT) before LRT and objective response rates were compared by Kruskal-Wallis and Fisher exact test; progression-free survival (PFS) and transplant-free survival (TFS) were compared by Cox proportional hazards model. RESULTS: On univariate analysis, HCC-CC was associated with lower median TVDT (2.4 months vs 5.2 months, P = .03), objective response (30% vs 71%, P = .01), and median PFS (2.4 months vs 7.4 months, HR 4.3, 95% CI 2.2-8.4, P < .0001). Propensity score-matched analysis demonstrated greater distant progression (60% vs 30%, P = .003) and significantly shorter median PFS (2.4 months vs 6.0 months, HR 3.3, 95% CI 1.3-8.9, P = .017) for HCC-CC. No significant difference was observed in TFS (7.5 months vs 13.8 months, HR 1.5, 95% CI 0.4-6.1). CONCLUSIONS: HCC-CC was associated with reduced PFS and greater distant progression after LRT compared with HCC, indicating a need for adjunctive treatment strategies to improve outcomes.
Subject(s)
Bile Duct Neoplasms/therapy , Carcinoma, Hepatocellular/therapy , Chemoembolization, Therapeutic , Cholangiocarcinoma/therapy , Embolization, Therapeutic/methods , Liver Neoplasms/therapy , Radiofrequency Ablation , Radiopharmaceuticals/administration & dosage , Yttrium Radioisotopes/administration & dosage , Aged , Bile Duct Neoplasms/diagnostic imaging , Bile Duct Neoplasms/mortality , Bile Duct Neoplasms/pathology , Carcinoma, Hepatocellular/diagnostic imaging , Carcinoma, Hepatocellular/mortality , Carcinoma, Hepatocellular/pathology , Chemoembolization, Therapeutic/adverse effects , Chemoembolization, Therapeutic/mortality , Cholangiocarcinoma/diagnostic imaging , Cholangiocarcinoma/mortality , Cholangiocarcinoma/pathology , Combined Modality Therapy , Disease Progression , Embolization, Therapeutic/adverse effects , Embolization, Therapeutic/mortality , Female , Humans , Liver Neoplasms/diagnostic imaging , Liver Neoplasms/mortality , Liver Neoplasms/pathology , Liver Transplantation , Male , Middle Aged , Progression-Free Survival , Radiofrequency Ablation/adverse effects , Radiofrequency Ablation/mortality , Radiopharmaceuticals/adverse effects , Retrospective Studies , Risk Assessment , Risk Factors , Time Factors , Yttrium Radioisotopes/adverse effectsABSTRACT
Fat grafting has become a well-accepted surgical modality to correct soft tissue facial defects and asymmetries with overall good results. Several techniques have been reported over the last few years to assist in improving accurate evaluation of facial defects and in the preoperative planning of the reconstruction. Such techniques include among others, computer tomography, three-dimensional (3D) photogrammetry, high resolution ultrasound, and 3D laser scanning. There are advantages and disadvantages for each technique.With the rapid advance of 3D technologies that have become readily available to clinicians, new clinical applications continually emerge to guide and facilitate reconstructive procedures. The authors explored the possibility of fabricating a 3D printed surgical guide to define volume differences for soft tissue reconstruction in patients with facial asymmetry. The model was developed through the authors' virtual surgical simulation and planning system that consists of computer-assisted design (CAD) and 3D printing (3DP).Three-dimensional volumetric scans of patients' faces were analyzed with computer-aided design to quantify areas of facial asymmetry. Surgical guides with containers defining volumetric differences were fabricated using 3D printing to identify and quantify areas of soft tissue deficiency. The 3D printed patient-specific, guides were sterilized and used by the surgeon intraoperatively to accurately mark the areas of soft deficiency. Thus, facial symmetry was achieved by fat grafting the predetermined volume differences defined in the surgical guides. A postop mask was used by the surgeon at the end of the procedure and during follow-up clinic visit to verify and evaluate accurate fat grafting placement as well as to determine areas where to add volume if needed.This paper details the rational for the authors' approach, outlines the technical planning and fabrication process of these patient-specific custom surgical guides with quantified volumetric containers and their intraoperative use by the surgeon. Despite the authors' limited experience we conclude that the authors' technique offer surgeons a precise means for accurate volumetric reconstruction of facial asymmetry.
Subject(s)
Facial Asymmetry/surgery , Plastic Surgery Procedures/methods , Surgery, Computer-Assisted/methods , Adipose Tissue/transplantation , Adolescent , Computer-Aided Design , Female , Humans , Imaging, Three-Dimensional , Masks , Printing, Three-Dimensional , Tomography, X-Ray Computed , Young AdultABSTRACT
AIM: The purpose of this pilot study was to evaluate the effects of the Bass brushing method on dental plaque and pneumonia in older adults hospitalized with pneumonia after discharge. BACKGROUND: Poor oral hygiene may lead to pneumonia. Complications of pneumonia in older adults can be life-threatening during hospitalization and after discharge. METHODS: Older adults hospitalized with pneumonia (nâ¯=â¯30) were randomly assigned to intervention (with the Bass brushing method; nâ¯=â¯15) or control (with usual care; nâ¯=â¯15) groups. Dental plaque index and pneumonia as detected on chest x-rays were evaluated prior to the intervention (baseline) and every month for six months after discharge. RESULTS: Participants in the intervention group experienced a sustained reduction in dental plaque from the fourth to the sixth months (pâ¯=â¯.024; pâ¯=â¯.025; pâ¯=â¯.000, respectively) that was not found in the control group. There were no group differences in detected pneumonia throughout the follow-up period. Pneumonia as detected on the chest x-rays at baseline (pâ¯=â¯.001) and dental plaque index (pâ¯=â¯.021) were significant predictors of the risk of pneumonia across groups. CONCLUSIONS: The Bass brushing method is a simple and effective oral hygiene practice that reduces dental plaque in older adults hospitalized with pneumonia after discharge.
Subject(s)
Dental Plaque/prevention & control , Oral Hygiene/methods , Pneumonia/prevention & control , Toothbrushing/methods , Aged , Aged, 80 and over , Dental Plaque Index , Female , Humans , Longitudinal Studies , Male , Pilot ProjectsABSTRACT
BACKGROUND: Immunohistochemical staining experiments have shown that both hemangiogenesis and lymphangiogenesis occur following severe corneal and conjunctival injury and that the neovascularization of the cornea often has severe visual consequences. To better understand how hemangiogenesis and lymphangiogenesis are induced by different degrees of ocular injury, we investigated patterns of injury-induced corneal neovascularization in live Prox1-GFP/Flk1::myr-mCherry mice, in which blood and lymphatic vessels can be imaged simultaneously in vivo. METHODS: The eyes of Prox1-GFP/Flk1::myr-mCherry mice were injured according to four models based on epithelial debridement of the: A) central cornea (a 1.5-mm-diameter circle of tissue over the corneal apex), B) total cornea, C) bulbar conjunctiva, and D) cornea+bulbar conjunctiva. Corneal blood and lymphatic vessels were imaged on days 0, 3, 7, and 10 post-injury, and the percentages of the cornea containing blood and lymphatic vessels were calculated. RESULTS: Neither central corneal nor bulbar conjunctival debridement resulted in significant vessel growth in the mouse cornea, whereas total corneal and corneal+bulbar conjunctival debridement did. On day 10 in the central cornea, total cornea, bulbar conjunctiva, and corneal+bulbar conjunctival epithelial debridement models, the percentage of the corneal surface that was occupied by blood vessels (hemangiogenesis) was 1.9±0.8%, 7.14±2.4%, 2.29±1%, and 15.05±2.14%, respectively, and the percentage of the corneal surface that was occupied by lymphatic vessels (lymphangiogenesis) was 2.45±1.51%, 4.85±0.95%, 2.95±1.27%, and 4.15±3.85%, respectively. CONCLUSIONS: Substantial corneal debridement was required to induce corneal neovascularization in the mouse cornea, and the corneal epithelium may therefore be partially responsible for maintaining corneal avascularity. GENERAL SIGNIFICANCE: Our study demonstrates that GFP/Flk1::myr-mCherry mice are a useful model for studying coordinated hemangiogenic and lymphangiogenic responses.
Subject(s)
Cornea/growth & development , Corneal Injuries/genetics , Corneal Neovascularization/genetics , Homeodomain Proteins/genetics , Tumor Suppressor Proteins/genetics , Vascular Endothelial Growth Factor Receptor-2/genetics , Animals , Cornea/metabolism , Cornea/pathology , Corneal Injuries/pathology , Corneal Neovascularization/pathology , Debridement , Disease Models, Animal , Epithelium, Corneal/growth & development , Epithelium, Corneal/pathology , Humans , Lymphangiogenesis/genetics , Lymphatic Vessels/metabolism , Lymphatic Vessels/pathology , MiceABSTRACT
We report on Sn-based p-i-n waveguide photodetectors (WGPD) with a pseudomorphic GeSn/Ge multiple-quantum-well (MQW) active layer on a Ge-buffered Si substrate. A reduced dark-current density of 59 mA/cm2 was obtained at a reverse bias of 1 V due to the suppressed strain relaxation in the GeSn/Ge active layer. Responsivity experiments revealed an extended photodetection range covering the O, E, S, C, and L telecommunication bands completely due to the bandgap reduction resulting from Sn-alloying. Band structure analysis of the pseudomorphic GeSn/Ge quantum well structures indicated that, despite the stronger quantum confinement, the absorption edge can be shifted to longer wavelengths by increasing the Sn content, thereby enabling efficient photodetection in the infrared region. These results demonstrate the feasibility of using GeSn/Ge MQW planar photodetectors as building blocks of electronic-photonic integrated circuits for telecommunication and optical interconnection applications.
ABSTRACT
PURPOSE: The purpose of this study was to determine if CT for appendicitis can be abbreviated to begin at the top of the L2 vertebral body level and still maintain the detection rate of appendicitis and other symptomatic pathology without omitting significant incidental findings. METHODS: Retrospective review of CT abdomen-pelvis exams for suspected appendicitis over a 5-month period was performed. The Z-axis scan length of the original full scans and theoretical limited scans from the top of L2 were recorded and calculated. Images were reviewed for incidental findings above the L2 vertebral body level and categorized by severity per American College of Radiology (ACR) white paper guidelines. Final diagnoses based on imaging findings were also recorded. RESULTS: One hundred nineteen patients (46 males, 73 females, mean age 29 ± 14) were included. Appendicitis was present in 26 cases (22%). Using a theoretical scan beginning at the top of the L2 vertebral body, none of the findings leading to diagnosis of appendicitis would have been missed. A total of 30 incidental findings were found above the L2 vertebral body. Per ACR white paper guidelines, 26 of these findings did not require additional imaging follow-up. Additional follow-up imaging was recommended for 3 of the findings above L2, and 1 right adrenal metastasis was found above L2 in a patient with previously undiagnosed NSCLC. This patient coincidentally also had appendicitis. No symptomatic pathology would have been missed had the scans begun at the top of the L2 vertebral body. Such an abbreviated scan would have resulted in a mean Z-axis reduction of 12.9 cm (30.3%). CONCLUSIONS: CT using abbreviated Z-axis scan length can reduce radiation dose and provide necessary imaging needed to diagnose appendicitis or other symptomatic pathology without omitting significant incidental findings.
Subject(s)
Appendicitis/diagnostic imaging , Tomography, X-Ray Computed/methods , Adult , Diagnosis, Differential , Female , Humans , Incidental Findings , Male , Radiation Dosage , Radiography, Abdominal/methods , Retrospective StudiesABSTRACT
OBJECTIVE: The aim of this study was to examine the effect of electroconvulsive therapy (ECT) on quality of life (QOL), depressive symptoms, and functioning for patients with depression, and to explore the variables related to QOL changes. METHODS: Ninety-five inpatients with depression receiving at least 6 ECT sessions and completed all measures were included. Quality of life, symptom severity, and functioning were assessed using Short Form 36 (SF-36), the 17-item Hamilton Rating Scale for Depression (HAMD-17), and the Modified Work and Social Adjustment Scale (MWSAS), before and after ECT. The SF-36 includes 8 subscales, physical component summary (PCS), and mental component summary (MCS). Adverse effects after ECT, including headache, muscle pain, and nausea/vomiting, were also recorded. RESULTS: All 8 SF-36 subscales, PCS, MCS, HAMD-17, and MWSAS improved significantly after treatment. Using multiple linear regression analysis, MWSAS changes predicted PCS changes significantly after adjusting for baseline PCS. Similarly, using multiple linear regression analysis, MWSAS changes were significant variables associated with MCS changes after adjusting for ECT frequency, HAMD-17 changes, and baseline MCS. The ECT improved QOL, depressive symptoms, and functioning. CONCLUSIONS: Whether strategies to enhance functioning during an acute course of ECT could improve QOL is needed to be examined in a further study.
Subject(s)
Depressive Disorder, Major/psychology , Depressive Disorder, Major/therapy , Electroconvulsive Therapy/methods , Quality of Life , Adult , Age Factors , Aged , Asian People , Electroconvulsive Therapy/adverse effects , Female , Humans , Male , Middle Aged , Psychiatric Status Rating Scales , Return to Work , Sex Factors , Social Behavior , Treatment OutcomeABSTRACT
BACKGROUND: Angiogenesis is the process of neovascularization from pre-existing vasculature and is involved in various physiological and pathological processes. Inhibitors of angiogenesis, administered either as individual drugs or in combination with other chemotherapy, have been shown to benefit patients with various cancers. Endostatin, a 20-kDa C-terminal fragment of type XVIII collagen, is one of the most potent inhibitors of angiogenesis. SCOPE OF REVIEW: We discuss the biology behind endostatin in the context of its endogenous production, the various receptors to which it binds, and the mechanisms by which it acts. We focus on its inhibitory role in angiogenesis, lymphangiogenesis, and cancer metastasis. We also present emerging clinical applications for endostatin and its potential as a therapeutic agent in the form a short peptide. MAJOR CONCLUSIONS: The delicate balance between pro- and anti-angiogenic factors can be modulated to result in physiological wound healing or pathological tumor metastasis. Research in the last decade has emphasized an emerging clinical potential for endostatin as a biomarker and as a therapeutic short peptide. Moreover, elevated or depressed endostatin levels in diseased states may help explain the pathophysiological mechanisms of the particular disease. GENERAL SIGNIFICANCE: Endostatin was once sought after as the 'be all and end all' for cancer treatment; however, research throughout the last decade has made it apparent that endostatin's effects are complex and involve multiple mechanisms. A better understanding of newly discovered mechanisms and clinical applications still has the potential to lead to future advances in the use of endostatin in the clinic.
Subject(s)
Endostatins/physiology , Lymphangiogenesis , Neovascularization, Physiologic , Amino Acid Sequence , Animals , Mice , Mice, Knockout , Molecular Sequence DataABSTRACT
Intercellular adhesion molecule-1 (ICAM-1) is a human protein encoded by the ICAM-1 gene and is typically expressed on endothelial cells and immune cells. ICAM-1 is associated with episode, growth, invasion, and metastasis of hepatocellular carcinoma (HCC). However, the association between ICAM-1 genetic variants and the risk of HCC is undetermined. In this study, we investigated the potential associations of ICAM-1 single nucleotide polymorphisms (SNPs) with susceptibility to HCC and its clinicopathological characteristics. A total of 918 participants, including 613 controls participants and 305 patients with HCC, were selected for the analysis of ICAM-1 SNPs (rs3093030, rs5491, rs281432, and rs5498) by using real-time PCR genotyping. After adjusting for covariants of age, sex, and alcohol consumption, 125 smoker patients with HCC carrying at least one G genotype (AG and GG) in rs5498 were observed to have a higher HCC risk compared with 231 smoker control participants carrying the wild-type allele AA (adjusted odds ratio (AOR), 1.713; 95 % confidence interval (CI), 1.091-2.690; P = 0.019). However, patients who possess at least one polymorphic allele of rs5498 are less prone to develop vascular invasive (AOR, 0.309; 95 % CI, 0.103-0.926; P = 0.036). The results suggest that the genetic polymorphism in ICAM-1 rs5498 SNPs with genotype AG and GG is associated with HCC risk among smokers. Moreover, gene and environment interactions of ICAM-1 rs5498 polymorphisms might alter susceptibility to liver cancer. Therefore, ICAM-1 rs5498 may serve as a marker to predict the vascular invasion risk in smoker patients with HCC.
Subject(s)
Carcinoma, Hepatocellular/genetics , Genetic Predisposition to Disease/genetics , Liver Neoplasms/genetics , Adult , Aged , Case-Control Studies , Female , Genotype , Humans , Intercellular Adhesion Molecule-1 , Male , Middle Aged , Odds Ratio , Polymorphism, Single Nucleotide , Real-Time Polymerase Chain Reaction , Smoking/adverse effectsABSTRACT
The carcinogenesis of transitional cell carcinoma (TCC) of the urinary bladder involves etiological factors, such as ethnicity, the environment, genetics, and diet. Cluster of differentiation (CD44), a well-known tumor marker, plays a crucial role in regulating tumor cell differentiation and metastasis. This study investigated the effect of CD44 single nucleotide polymorphisms (SNPs) on TCC risk and clinicopathological characteristics. Five SNPs of CD44 were analyzed through real-time polymerase chain reaction in 275 patients with TCC and 275 participants without cancer. In this study, we observed that CD44 rs187115 polymorphism carriers with the genotype of at least one G were associated with TCC risk. Furthermore, TCC patients who carried at least one G allele at CD44 rs187115 had a higher stage risk than did patients carrying the wild-type allele (p < 0.05). In addition, The AATAC or GACGC haplotype among the five CD44 sites was also associated with a reduced risk of TCC. In conclusion, our results suggest that CD44 SNPs influence the risk of TCC. Patients with CD44 rs187115 variant genotypes (AG + GG) exhibited a higher risk of TCC; these patients may possess chemoresistance to developing late-stage TCC compared with those with the wild-type genotype. The CD44 rs187115 SNP may predict poor prognosis in patients with TCC.
Subject(s)
Carcinoma, Transitional Cell/genetics , Genetic Association Studies , Genetic Predisposition to Disease , Hyaluronan Receptors/genetics , Polymorphism, Single Nucleotide , Urinary Bladder Neoplasms/genetics , Aged , Aged, 80 and over , Alleles , Carcinoma, Transitional Cell/diagnosis , Carcinoma, Transitional Cell/epidemiology , Female , Gene Frequency , Genotype , Haplotypes , Humans , Male , Middle Aged , Neoplasm Grading , Neoplasm Metastasis , Neoplasm Staging , Risk Assessment , Taiwan/epidemiology , Urinary Bladder Neoplasms/diagnosis , Urinary Bladder Neoplasms/epidemiologyABSTRACT
PURPOSE: To retrospectively compare the safety and efficacy of radiofrequency ablation (RFA) with laparoscopic adrenalectomy (LA) in treating aldosterone-producing adenoma (APA) of the adrenal gland. MATERIALS AND METHODS: From September 2009 to September 2013, seven patients, diagnosed with unilateral adrenal APA and underwent computed tomography (CT)-guided percutaneous RFA, were recruited in this retrospective study. Eighteen unilateral adrenal APA with the same tumor size (<25 mm) who underwent LA during the same interval were enrolled as control group. Treatment success was defined as complete tumor ablation on follow-up CT scan and normalization of serum aldosterone-to-renin ratio. We also compared "normalization ability" between RFA group and LA group. Normalization ability was defined as reduction in blood pressure, decrease in number of antihypertensive medicine use, reduction in serum aldosterone, and increase in serum potassium level. RESULTS: There was no statistically significant demographic difference in both groups. The mean tumor size was 18 (8-25) mm in RFA and 19 (11-25) mm in LA groups, respectively. There was only one intra-procedure hypertensive crisis in the RFA group. No other complications needed further management in both groups. During an interval of 3-6 months of follow-up, the treatment success rate reached 100 % in the RFA group versus 94.4 % in the LA group. Normalization ability was statistically equivalent in the RFA and the LA group. Comparing with LA group, RFA group demonstrated with less post-operative pain (visual analog scale, 2.0 ± 1.16 vs. 4.22 ± 1.44, p < 0.001) and shorter operative time (105 ± 34 vs. 194 ± 58 min, p < 0.001). CONCLUSIONS: CT-guided percutaneous RFA is effective, safe and is a justifiable alternative for patients who are reluctant or unfit for laparoscopic surgery for the treatment of APA.