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Objective: To investigate the diagnostic efficacy of the clinical ultrasound imaging model, ultrasonographic radiomics model, and comprehensive model based on ultrasonographic radiomics for the differentiation of small clear cell Renal Cell Carcinoma (ccRCC) and Renal Angiomyolipoma (RAML). Methods: The clinical, ultrasound, and contrast-enhanced CT(CECT) imaging data of 302 small renal tumors (maximum diameter ≤ 4cm) patients in Tianjin Medical University Cancer Institute and Hospital from June 2018 to June 2022 were retrospectively analyzed, with 182 patients of ccRCC and 120 patients of RAML. The ultrasound images of the largest diameter of renal tumors were manually segmented by ITK-SNAP software, and Pyradiomics (v3.0.1) module in Python 3.8.7 was applied to extract ultrasonographic radiomics features from ROI segmented images. The patients were randomly divided into training and internal validation cohorts in the ratio of 7:3. The Random Forest algorithm of the Sklearn module was applied to construct the clinical ultrasound imaging model, ultrasonographic radiomics model, and comprehensive model. The efficacy of the prediction models was verified in an independent external validation cohort consisting of 69 patients, from 230 small renal tumor patients in two different institutions. The Delong test compared the predictive ability of three models and CECT. Calibration Curve and clinical Decision Curve Analysis were applied to evaluate the model and determine the net benefit to patients. Results: 491 ultrasonographic radiomics features were extracted from 302 small renal tumor patients, and 9 ultrasonographic radiomics features were finally retained for modeling after regression and dimensionality reduction. In the internal validation cohort, the area under the curve (AUC), sensitivity, specificity, and accuracy of the clinical ultrasound imaging model, ultrasonographic radiomics model, comprehensive model, and CECT were 0.75, 76.7%, 60.0%, 70.0%; 0.80, 85.6%, 61.7%, 76.0%; 0.88, 90.6%, 76.7%, 85.0% and 0.90, 92.6%, 88.9%, 91.1%, respectively. In the external validation cohort, AUC, sensitivity, specificity, and accuracy of the three models and CECT were 0.73, 67.5%, 69.1%, 68.3%; 0.89, 86.7%, 80.0%, 83.5%; 0.90, 85.0%, 85.5%, 85.2% and 0.91, 94.6%, 88.3%, 91.3%, respectively. The DeLong test showed no significant difference between the clinical ultrasound imaging model and the ultrasonographic radiomics model (Z=-1.287, P=0.198). The comprehensive model showed superior diagnostic performance than the ultrasonographic radiomics model (Z=4. 394, P<0.001) and the clinical ultrasound imaging model (Z=4. 732, P<0.001). Moreover, there was no significant difference in AUC between the comprehensive model and CECT (Z=-0.252, P=0.801). Both in the internal and external validation cohort, the Calibration Curve and Decision Curve Analysis showed a better performance of the comprehensive model. Conclusion: It is feasible to construct an ultrasonographic radiomics model for distinguishing small ccRCC and RAML based on ultrasound images, and the diagnostic performance of the comprehensive model is superior to the clinical ultrasound imaging model and ultrasonographic radiomics model, similar to that of CECT.
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In recent years, the steady-state visual evoked potentials (SSVEP) based brain control method has been employed to help people with disabilities because of its advantages of high information transmission rate and low training time. However, the existing SSVEP brain control methods cannot adapt to dynamic or unstructured environments. Moreover, the recognition accuracy from the conventional decoding algorithm still needs to improve. To address the above problems, this study proposed a steady-state hybrid visual evoked potentials (SSHVEP) paradigm using the grasping targets in their environment to improve the connection between the subjects' and their dynamic environments. Moreover, a novel EEG decoding method, using the multivariate variational mode decomposition (MVMD) algorithm for adaptive sub-band division and convolutional neural network (CNN) for target recognition, was applied to improve the decoding accuracy of the SSHVEPs. 18 subjects participated in the offline and online experiments. The offline accuracy across 18 subjects by the 9-target SSHVEP paradigm was up to 95.41 ± 2.70 %, which is a 5.80% improvement compared to the conventional algorithm. To further validate the performance of the proposed method, the brain-controlled grasping robot system using the SSHVEP paradigm was built. The average accuracy reached 93.21 ± 10.18 % for the online experiment. All the experimental results demonstrated the effectiveness of the brain-computer interaction method based on the SSHVEP paradigm and the MVMD combined CNN algorithm studied in this paper.
Subject(s)
Algorithms , Brain-Computer Interfaces , Electroencephalography , Evoked Potentials, Visual , Hand Strength , Neural Networks, Computer , Robotics , Humans , Evoked Potentials, Visual/physiology , Electroencephalography/methods , Male , Robotics/methods , Hand Strength/physiology , Young Adult , Female , Adult , Healthy VolunteersABSTRACT
Wu-Zheng-Dao District in China is the world's most famous mining areas. It hosts several world-class deposits, such as Xinming, Datang and Luolong bauxite deposits. Although this area still has significant potential for the discovery of new deposits, mineral prediction has become increasingly diffcult as the number of shallow deposits diminishes. Therefore, it is necessary to explore new and effective metallogenic prediction methods.Weights of evidence and machine-learning algorithms were used for mineral prospecting in this study. This study used a confusion matrix, receiver operating characteristic (ROC) curve,and prediction efficiency curve to evaluate the prediction results of each machine algorithm. The results showed that 95.9% of the deposits were located in high and distant scenic areas, accounting for 10% of the total area.The prospectivity map of the Wu-Zheng-Dao district shows that the high prospective areas are generally confined to the claystone and carbonatite rocks of the Eastern region, in particular, of the clay layers, and several areas of high prospectivity also occur in the Southern Cross Domain. According to the predicted results, after on-site exploration, design, and construction, Yanfengqian bauxite deposit was discovered, with an average thickness of 1.82 meters; The average content of Al2O3 is 61.24%; The resource amount is 28.9503 million tons.
Subject(s)
Aluminum Oxide , China , Aluminum Oxide/chemistry , Mining , Minerals/analysis , Minerals/chemistry , Machine Learning , Algorithms , ROC CurveABSTRACT
BACKGROUND: The prognosis of patients with thalamic hemorrhage is poor, and their long-term neurological impairment is heavy, which seriously affects their work and life.To comparatively analyse the efficacy and prognosis of patients with moderate hemorrhage in the thalamic region who underwent conservative treatment, stereotactic puncture surgery and neuroendoscopic surgery. METHOD: This study retrospectively analyzed hospitalization data from 139 adult patients with moderate-volume cerebral hemorrhage in the thalamo-endocapsular region. They were categorized into a stereotactic group (39cases), a neuroendoscopic group (36cases), and a conventional conservative group (64cases). Logistic regression analysis was used to assess risk factors for severe neurological deficits in patients. Multivariate regression modeling was used to compare the correlation of severe neurological deficits among the three groups of patients. RESULTS: Patients with thalamic moderate-volume cerebral hemorrhage had statistically significantly higher Assessment of Daily Living (ADL) scores in the stereotactic surgery group than in the conservative treatment group and the neuroendoscopic surgery group after 6 months of treatment (p< 0.001).The amount of residual hematoma was significantly lower in the surgery groups than in the conservative treatment group at 3 days, 7 days, and 2 weeks after the onset of the disease (P< 0.001).In multivariate logistic regression analyses, after adjusting for all covariates, the odds ratios for severe neurologic dysfunction in the stereotactic group and the neuroendoscopy group were, respectively, OR: 0.37 (0.12-0.87), P< 0.001 and 0.42 (0.23-1.13), P=0.361). CONCLUSION: In patients with moderate volume cerebral hemorrhage in the thalamus-inner capsule region cerebral hemorrhage, patients treated with stereotactic surgery combined with early hyperbaric oxygen therapy may have better long-term neurological recovery compared with conservative and neuroendoscopic surgical treatments.
Subject(s)
Hyperbaric Oxygenation , Recovery of Function , Stereotaxic Techniques , Thalamus , Humans , Male , Female , Middle Aged , Hyperbaric Oxygenation/methods , Aged , Adult , Thalamus/surgery , Retrospective Studies , Cerebral Hemorrhage/surgery , Internal Capsule/surgery , Treatment Outcome , Combined Modality Therapy , Neuroendoscopy/methodsABSTRACT
BACKGROUND: The efficacy of surgical intervention in ameliorating long-term prognosis for moderate volume of cerebral hemorrhage in the thalamus-internal capsule region remains unsubstantiated by clinical investigations. Consequently, the acquisition of credible evidence is imperative to authenticate the effectiveness of these methodologies. METHODS: One hundred and three eligible patients with moderate-volume thalamus-internal capsule region cerebral hemorrhage. Twenty-seven pairs of successful matches after using the 1:1 propensity score matching method, totaling 54 patients, were analyzed. The short- and long-term treatment outcomes of patients in the stereotactic surgery and conservative treatment groups were compared. The prognosis of the 2 groups of patients was analyzed by logistic regression analysis and model comparison. RESULTS: The primary outcome of this study was to assess the assessment of daily living scores after 6 months of treatment. Based on the analysis of this study, the assessment of daily living of the surgical group were significantly higher than those of the conservative treatment group after 6 months of treatment (P < 0.001), and the difference was statistically significant. The amount of residual hematoma was significantly lower in the stereotactic surgery group than in the conservative treatment group at 3 days, 7 days, and 2 weeks after the onset of the disease (P < 0.001), and the complication rate was lower than the conservative treatment group (P < 0.05). Univariate logistic regression showed that the risk of severe neurological dysfunction for patients in the surgery group was (odds ratio -0.27, 95% confidence interval: 0.08-0.86, P < 0.05). In multivariate logistic regression analysis, the odds ratio was 0.29 (95% confidence interval: 0.09-0.96, P < 0.05) after adjusting for all covariates. CONCLUSIONS: For moderate-volume thalamus-internal capsule region cerebral hemorrhage, stereotactic paracentesis has the advantage of a shorter hospital stay and a lower complication rate than conservative treatment. Moreover, it yields superior outcomes in terms of daily living assessment scores after six months of treatment and enhanced neurological recovery.
Subject(s)
Cerebral Hemorrhage , Internal Capsule , Stereotaxic Techniques , Thalamus , Humans , Female , Male , Middle Aged , Aged , Cerebral Hemorrhage/surgery , Thalamus/surgery , Thalamus/diagnostic imaging , Treatment Outcome , Internal Capsule/surgery , Activities of Daily Living , Adult , Punctures/methodsABSTRACT
Human pose estimation is a crucial area of study in computer vision. Transformer-based pose estimation algorithms have gained popularity for their excellent performance and relatively compact parameterization. However, these algorithms often face challenges including high computational demands and insensitivity to local details. To address these problems, the Twin attention module was introduced in TransPose to improve model efficiency and reduce resource consumption. Additionally, to address issues related to insufficient joint feature representation and poor network recognition performance, the enhanced TransPose model, named VTTransPose, replaced the basic block in the third subnet with the intra-level feature fusion module V block. The performance of the proposed VTTransPose model was validated on the public datasets COCO val2017 and COCO test-dev2017. The experimental results on COCO val2017 and COCO test-dev2017 indicate that the AP evaluation index scores of the VTTransPose network proposed are 76.5 and 73.6 respectively, marking improvements of 0.4 and 0.2 over the original TransPose network. Additionally, VTTransPose exhibited a reduction of 4.8G FLOPs, 2M parameters, and approximately 40% lower memory usage during training compared to the original TransPose model. All the experimental results demonstrate that the proposed VTTransPose is more accurate, efficient, and lightweight compared to the original TransPose model.
Subject(s)
Algorithms , Electric Power Supplies , Humans , Recognition, Psychology , TwinsABSTRACT
As an important direction in computer vision, human pose estimation has received extensive attention in recent years. A High-Resolution Network (HRNet) can achieve effective estimation results as a classical human pose estimation method. However, the complex structure of the model is not conducive to deployment under limited computer resources. Therefore, an improved Efficient and Lightweight HRNet (EL-HRNet) model is proposed. In detail, point-wise and grouped convolutions were used to construct a lightweight residual module, replacing the original 3 × 3 module to reduce the parameters. To compensate for the information loss caused by the network's lightweight nature, the Convolutional Block Attention Module (CBAM) is introduced after the new lightweight residual module to construct the Lightweight Attention Basicblock (LA-Basicblock) module to achieve high-precision human pose estimation. To verify the effectiveness of the proposed EL-HRNet, experiments were carried out using the COCO2017 and MPII datasets. The experimental results show that the EL-HRNet model requires only 5 million parameters and 2.0 GFlops calculations and achieves an AP score of 67.1% on the COCO2017 validation set. In addition, PCKh@0.5mean is 87.7% on the MPII validation set, and EL-HRNet shows a good balance between model complexity and human pose estimation accuracy.
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Background: This study aimed to evaluate the association between the glucose-to-lymphocyte ratio (GLR) and all-cause mortality in intensive care unit (ICU) patients with Non-traumatic cerebral hemorrhage. Methods: This is a retrospective cohort study. Baseline data and in-hospital prognosis from patients with non-traumatic cerebral hemorrhage admitted to the intensive care unit. Multivariate COX regression analysis was applied and adjusted hazard ratios (HR) and 95% predictive values with confidence intervals (CI) were calculated. Survival curves for the two groups of cases were plotted using K-M curves, and subgroup analyses were performed in one step. Using restricted cubic spline curves, we analyzed the potential linear relationship between GLR and outcome indicators. Results: In the Medical Information Mart for Intensive Care IV (MIMIC-IV database), we extracted 3,783 patients with nontraumatic intracerebral hemorrhage, and 1,806 patients were finally enrolled in the study after exclusion of missing values and patients with a short hospital stay. The overall ICU mortality rate was 8.2% (148/1806) and the in-hospital mortality rate was 12.5% (225/1806). The use of curve fitting yielded a significant linear relationship between GLR and both ICU mortality and in-hospital mortality. It also suggested a reference point at GLR=3.9. These patients were categorized into high and low subgroups based on the median value of their GLR (GLR = 3.9). Model comparisons based on multivariate COX regression analysis showed that in-hospital mortality was higher in the high GLR group after adjusting for all confounders (HR = 1.31, 95% CI: 1.04-1.47), while the ICU mortality in the high GLR group was (HR = 1.73, 95% CI: 1.18-2.52). Stratified analyses based on age, gender, race, GCS, BMI, and disease type showed stable correlations between the high GLR group and in-hospital and ICU mortality. Conclusion: Based on our retrospective analysis, it is known that as the GLR increased, the in-hospital mortality rate and ICU mortality rate of patients with nontraumatic cerebral hemorrhage also increased progressively in the United States in a clear linear relationship. However, further studies are needed to confirm these findings.
Subject(s)
Blood Glucose , Hyperglycemia , Humans , Retrospective Studies , Lymphocytes , Glucose , Cerebral HemorrhageABSTRACT
As the main allergenic food, shrimp can trigger allergic reactions in various degrees. In this study, arginine kinase (AK) was identified as an allergen in Oratosquilla oratoria by LC-MS/MS. The open reading frame of AK was obtained, which included 356 amino acids, and recombinant AK (rAK) was expressed in Escherichia coli. The results of immunological analysis and circular dichroism showed that rAK displayed similar IgG-/IgE-binding activity and structure as native AK. Besides, five IgE linear epitopes of AK were verified by serological analysis, on the basis of which an epitope-deleted derivative was obtained and named as mAK-L. It has been shown that mAK-L displayed hypo-immunoreactivity compared to rAK, and the contents of secondary structures were different. In conclusion, these discoveries enrich the overall understanding of crustacean allergens and epitopes and set the foundations for food allergy diagnosis and immunotherapy.
Subject(s)
Arginine Kinase , Food Hypersensitivity , Animals , Epitopes/chemistry , Arginine Kinase/genetics , Chromatography, Liquid , Tandem Mass Spectrometry , Crustacea/metabolism , Allergens/chemistry , Immunoglobulin EABSTRACT
The Maillard reaction (MR) can affect the color, flavor, organoleptic properties, and nutritional value of food. Sometimes, MR is undesirable due to lowering the nutrient utilization, producing harmful neo-formed compounds, etc. In this case, it is necessary to control MR. Some chemical substances, such as phenolic acid, vitamins, aminoguanidine, and thiols extracted from garlic or onion, can effectively prevent MR. In this study, L-cysteine (L-cys) was found to inhibit MR after screening 10 sulfhydryl compounds by comparing their ability to mitigate browning. The inhibition mechanism was speculated to be related to the removal of 5-hydroxymethylfurfural (HMF), a key mid-product of MR. The reaction product of HMF and L-cys was identified and named as 1-dicysteinethioacetal-5-hydroxymethylfurfural (DCH) according to the mass spectrum and nuclear magnetic resonance spectrum of the main product. Furthermore, DCH was detected in the glutamic-fructose mixture after L-cys was added. In addition, the production of DCH also increased with the addition of L-cys. It also was worth noting that DCH showed no cell toxicity to RAW 264.7 cells. Moreover, the in vitro assays indicated that DCH had anti-inflammatory and antioxidant activities. In conclusion, L-cys inhibits MR by converting HMF into another adduct DCH with higher safety and health benefits. L-cys has the potential to be applied as an inhibitor to prevent MR during food processing and storage.
Subject(s)
Oculomotor Muscles , Strabismus , Humans , Oculomotor Muscles/surgery , Paralysis , Retrospective Studies , Strabismus/surgery , Treatment OutcomeABSTRACT
BACKGROUND: To retrospectively analyze the pulmonary computed tomography (CT) characteristics and dynamic changes in the lungs of cured coronavirus disease 2019 (COVID-19) patients at discharge and reexamination. METHODS: A total of 155 cured COVID-19 patients admitted to designated hospitals in Yunnan Province, China, from February 1, 2020, to March 20, 2020, were included. All patients underwent pulmonary CT at discharge and at 2 weeks after discharge (during reexamination at hospital). A retrospective analysis was performed using these two pulmonary CT scans of the cured patients to observe changes in the number, distribution, morphology, and density of lesions. RESULTS: At discharge, the lung CT images of 15 cured patients showed no obvious lesions, while those of the remaining 140 patients showed different degrees of residual lesions. Patients with moderate disease mostly had multiple pulmonary lesions, mainly in the lower lobes of both lungs. At reexamination, the lung lesions in the patients with moderate disease had significantly improved (P<0.05), and the lung lesions in the patients with severe disease had partially improved, especially in patients with multi-lobe involvement (χ 2 =3.956, P<0.05). At reexamination, the lung lesions of patients with severe disease did not show significant changes (P>0.05). CONCLUSIONS: The pulmonary CT manifestations of cured COVID-19 patients had certain characteristics and variation patterns, providing a reference for the clinical evaluation of treatment efficacy and prognosis of patients.
Subject(s)
COVID-19/diagnostic imaging , Survivors , Tomography, X-Ray Computed , China , Humans , Lung/diagnostic imaging , Patient Discharge , Retrospective StudiesABSTRACT
BACKGROUND: Ureteric stricture is a common and salvaging complications after renal transplantation. Two treatment methods are usually used, retrograde ureteral stent placement and percutaneous nephrostomy. The former has a higher failure rate, the latter has a great risk. Therefore, a safe and reliable treatment is needed. CASE PRESENTATION: A technique of retrograde insertion of ureteral stent was established, which was applicable in three transplant recipients with post-transplant ureteral stenosis, and the data was retrospectively recorded. The patients are 2 men and 1 woman, ages 44, 27 and 32 years. These patients underwent a total of five times of retrograde insertion of ureteral stent between 2018 and 2019. None of these patients had any postoperative complication, but all patients had complete recovery from oliguric status within two weeks. CONCLUSIONS: The retrograde ureteric stent insertion by percutaneous suprapubic access to the bladder (RUS-PSAB) was demonstrated feasibility and safety in a case series with short-term follow-up. However, larger prospective studies are needed.
Subject(s)
Kidney Transplantation , Postoperative Complications/surgery , Prosthesis Implantation/methods , Stents , Ureter/surgery , Ureteral Obstruction/surgery , Adult , Constriction, Pathologic/surgery , Female , Humans , Male , Minimally Invasive Surgical Procedures , Urinary Bladder , Urologic Surgical Procedures/methodsABSTRACT
As one of the core technologies for autonomous mobile robots, Visual Simultaneous Localization and Mapping (VSLAM) has been widely researched in recent years. However, most state-of-the-art VSLAM adopts a strong scene rigidity assumption for analytical convenience, which limits the utility of these algorithms for real-world environments with independent dynamic objects. Hence, this paper presents a semantic and geometric constraints VSLAM (SGC-VSLAM), which is built on the RGB-D mode of ORB-SLAM2 with the addition of dynamic detection and static point cloud map construction modules. In detail, a novel improved quadtree-based method was adopted for SGC-VSLAM to enhance the performance of the feature extractor in ORB-SLAM (Oriented FAST and Rotated BRIEF-SLAM). Moreover, a new dynamic feature detection method called semantic and geometric constraints was proposed, which provided a robust and fast way to filter dynamic features. The semantic bounding box generated by YOLO v3 (You Only Look Once, v3) was used to calculate a more accurate fundamental matrix between adjacent frames, which was then used to filter all of the truly dynamic features. Finally, a static point cloud was estimated by using a new drawing key frame selection strategy. Experiments on the public TUM RGB-D (Red-Green-Blue Depth) dataset were conducted to evaluate the proposed approach. This evaluation revealed that the proposed SGC-VSLAM can effectively improve the positioning accuracy of the ORB-SLAM2 system in high-dynamic scenarios and was also able to build a map with the static parts of the real environment, which has long-term application value for autonomous mobile robots.
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Purpose: To evaluate the efficacy of single or combined superior oblique tendon (SO) advancement for selected cases of unilateral superior oblique palsy (SOP).Methods: The medical records of 14 patients who underwent single or combined superior oblique tendon advancement in one institution from May 2017 to October 2018 were reviewed. All subjects with a diagnosis of unilateral SOP who underwent single or combined SO tendon advancement surgery were included. The goal of the surgery was to correct the hypertropia and head tilt. The single or combined SO tendon advancement surgery was selected based on the amount of hypertropia or head tilt and the Knapp classification of the SOP. The information recorded included pre- and postoperative deviation angle and ocular motility findings. The degree of upshoot in adduction was graded pre- and postoperatively.Results: Fourteen patients between the age of 3 and 52 years with unilateral superior oblique palsy were selected to undergo SO tendon advancement. Single SO tendon advancement was carried out in eight acquired Knapp class II or residual SOP patients. SO tendon advancement combined with contralateral inferior rectus recession was carried out in two acquired Knapp class II patients. SO tendon advancement combined with ipsilateral inferior oblique myectomy was carried out in four congenital Knapp class III patients. The changes in pre- and postoperative hypertropia at primary gaze in single SO tendon advancement patients were from 6.25 ± 2.12 prism diopters to 0.86 ± 1.46 prism diopters. The changes in degree of upshoot in adduction were from +1.86 to +0.21. Conclusions: SO tendon advancement worked well as single or combined muscle procedure to treat unilateral superior oblique palsy.
Subject(s)
Oculomotor Muscles/surgery , Strabismus/surgery , Tendons/surgery , Trochlear Nerve Diseases/surgery , Adolescent , Adult , Child , Child, Preschool , Disease Progression , Female , Humans , Male , Middle Aged , Ophthalmologic Surgical Procedures/methods , Postoperative Period , Retrospective Studies , Treatment Outcome , Young AdultABSTRACT
Purpose: Monocular transposition of the inferior oblique muscle belly (IOMBT) effectively weakened mild to moderate inferior oblique overaction and corrected small primary position hypertropia. Now we aim to evaluate the efficacy of inferior oblique muscle belly transposition (IOMBT) in treating V pattern strabismus with upshoot in adduction.Methods: This is a retrospective review of 13 patients with V pattern who underwent IOMBT procedure from January 2017 to December 2018. The inclusion criteria were: the amount of V pattern from 15 to 25 pd; the degree of upshoot in adduction from +1 to +3; no or trace vertical deviation in primary gaze position. Bilateral IOMBT was performed to reduce the V pattern. Horizontal rectus muscle surgery was performed at the same stage to correct the horizontal deviation. The angle of deviation in upgaze and downgaze was measured pre- and postoperatively. The degree of elevation in adduction was graded. The amount of V pattern was the difference in horizontal angle between up- and downgaze. The change in the amount of V pattern was assessed postoperatively.Results: All 13 patients had complete resolution of the V pattern. The amount of V pattern changed from 18.92 ± 4.310 prism diopters to 3.462 ± 1.854 prism diopters postoperatively. The mean grade of upshoot in adduction changed from 1.92 to 0.12 postoperatively. No depression in adduction or consecutive A pattern were found after surgery.Conclusions: IOMBT can successfully eliminate the V pattern in patients with mild V pattern esotropia or exotropia with mild to moderate upshoot in adduction. This procedure appears to be a useful addition to our inferior oblique surgical armamentarium.
Subject(s)
Oculomotor Muscles/transplantation , Ophthalmologic Surgical Procedures/methods , Strabismus/surgery , Adolescent , Adult , Child , Child, Preschool , Female , Humans , Male , Postoperative Period , Retrospective Studies , Strabismus/physiopathology , Treatment Outcome , Vision, Binocular/physiologyABSTRACT
Bladder cancer (BC) has been regarded as the most common malignancy of the urinary system worldwide. With lack of investigations for molecular pathogenesis underlying that develop BC, the therapeutic efficacy of several therapeutic approaches existing is still unsatisfactory. Here, our study aimed to explore the potentially biological function of MAN1B1 on BC. In this study, MAN1B1 expression level in BC tissues and normal tissues was analyzed based on The Cancer Genome Atlas (TCGA) data and correlation between its expression and prognosis was determined using Kaplan-Meier analysis. Knockout of MAN1B1 was performed using silencing RNA and the efficacy of MAN1B1 knockout was identified using quantitative reverse transcription polymerase chain reaction (qRT-PCR) analysis. The BC cells proliferation was assessed by Cell Counting Kit-8 (CCK8) assay, and then the cells apoptosis was detected by Annexin V-fluorescein isothiocyanate (Annexin V-FITC)/propidium iodide (PI) staining and flow cytometry following MAN1B1 knocked down by small interfering RNA. Protein kinase B (AKT) signaling was evaluated by detecting related markers, namely AKT, p-AKT, 4E-BP-1 and Bax using western blot assay. As a result, the MAN1B1 expression was higher in BC tissues than those in normal tissues, besides, its overexpression was associated with poor prognosis. Moreover, MAN1B1 reduction by silencing RNA approach resulted in BC cells proliferation suppression and BC cells apoptosis promotion. Finally, AKT signaling activity was inhibited by MAN1B1 silencing. Taken together, these results unraveled that MAN1B1 may act on an oncogenic action in BC, which improved the likelihood of MAN1B1 taking on a promising prognostic biomarker and a potential target for treating BC.
Subject(s)
Mannosidases/genetics , Proto-Oncogene Proteins c-akt/metabolism , Up-Regulation , Urinary Bladder Neoplasms/genetics , Apoptosis , Cell Line, Tumor , Cell Proliferation , Gene Expression Regulation, Neoplastic , Genetic Association Studies , Humans , Kaplan-Meier Estimate , Mannosidases/metabolism , Prognosis , Signal Transduction , Survival Analysis , Urinary Bladder Neoplasms/metabolismABSTRACT
BACKGROUND: Gastric metastasis from ovarian serous cystadenocarcinoma is extremely rare. CASE PRESENTATION: We herein report one case of a 45-year-old female with ovarian carcinoma who underwent cytoreductive surgery. Two years later, endoscopic ultrasonography-guided fine needle aspiration revealed gastric metastasis. The patient underwent laparoscopic resection of gastric metastases. She is currently in complete remission. CONCLUSION: Gastric metastasis from ovarian cancer should not be ignored in the clinic.
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PURPOSE: To evaluate the efficacy of transposition of the belly of the inferior oblique muscle in treating inferior oblique overaction with small angle hypertropia. METHODS: The medical records of 10 patients who underwent inferior oblique belly transposition from March 2014 to July 2016 were reviewed. Transposition of the inferior oblique muscle belly consisted of suturing the entire body of the muscle to the sclera 5 mm posterior to the temporal insertion of the inferior rectus muscle. All patients had small hypertropias (< 5 prism diopters) in the primary gaze position with associated inferior oblique overaction. Deviations in both primary and lateral gazes, compensatory face turns or head tilts, and the degree of inferior oblique overaction were evaluated preoperatively and postoperatively. RESULTS: Nine of the 10 patients had a complete resolution of inferior oblique overaction. In the remaining patient, the inferior oblique overaction improved from +3 to +1. None of the patients had any residual vertical deviation. There was elimination of compensatory head tilting in 5 patients and correction of compensatory face turns in 4 patients. One patient with mild up drifting of the involved eye also improved after the procedure. All patients expressed subjective satisfaction with the surgical outcome. CONCLUSIONS: Transposition of the inferior oblique muscle belly effectively weakened mild to moderate inferior oblique overaction and corrected small primary position hypertropias. This procedure may be a useful addition to surgical treatment options in patients with small hypertropias associated with inferior oblique overaction. [J Pediatr Ophthalmol Strabismus. 2018;55(1):43-46.].
Subject(s)
Eye Movements/physiology , Oculomotor Muscles/surgery , Ophthalmologic Surgical Procedures/methods , Strabismus/surgery , Vision, Binocular/physiology , Adolescent , Adult , Child , Female , Follow-Up Studies , Humans , Male , Pilot Projects , Postoperative Period , Retrospective Studies , Strabismus/physiopathology , Time Factors , Treatment Outcome , Young AdultABSTRACT
Human activity plays a central role in understanding large-scale social dynamics. It is well documented that individual activity pattern follows bursty dynamics characterized by heavy-tailed interevent time distributions. Here we study a large-scale online chatting dataset consisting of 5,549,570 users, finding that individual activity pattern varies with timescales whereas existing models only approximate empirical observations within a limited timescale. We propose a novel approach that models the intensity rate of an individual triggering an activity. We demonstrate that the model precisely captures corresponding human dynamics across multiple timescales over five orders of magnitudes. Our model also allows extracting the population heterogeneity of activity patterns, characterized by a set of individual-specific ingredients. Integrating our approach with social interactions leads to a wide range of implications.