anthonyyazdaniml/gliner-biomed-curated-corpus huggingface dataset:
BACKGROUND: Ferroptosis is an important type of cell death contributing to myocardial dysfunction induced by whole body ischemia reperfusion following cardiac arrest (CA) and resuscitation. Sulforaphane (SFN), known as the activator of the nuclear factor E2-related factor 2 (Nrf2), has been proven to effectively alleviate regional myocardial ischemia reperfusion injury. The present study was designed to investigate whether SFN could improve post-resuscitation myocardial dysfunction by inhibiting cardiomyocytes ferroptosis and its potential regulatory mechanism.
METHODS AND RESULTS: An in vivo pig model of CA and resuscitation was established. Hypoxia/reoxygenation (H/R)-stimulated AC16 cardiomyocytes was constructed as an in vitro model to simulate the process of CA and resuscitation. In vitro experiment, SFN reduced ferroptosis-related ferrous iron, lipid reactive oxygen species, and malondialdehyde, increased glutathione, and further promoted cell survival after H/R stimulation in AC16 cardiomyocytes. Mechanistically, the activation of Nrf2 with the SFN decreased interferon regulatory factor 1 (IRF1) expression, then reduced its binding to the promoter of glutathione peroxidase 4 (GPX4), and finally recovered the latter's transcription after H/R stimulation in AC16 cardiomyocytes. In vivo experiment, SFN reversed abnormal expression of IRF1 and GPX4, inhibited cardiac ferroptosis, and improved myocardial dysfunction after CA and resuscitation in pigs.
CONCLUSIONS: SFN could effectively improve myocardial dysfunction after CA and resuscitation, in which the mechanism was potentially related to the inhibition of cardiomyocytes ferroptosis through the regulation of Nrf2/IRF1/GPX4 pathway.
Patients who are eligible will be given 5ARI therapy, Finasteride, for medical management of Benign Prostatic Hyperplasia (BPH) symptoms. Only patients with lower urinary tract symptoms (LUTS) as assessed by American Urologic Association (AUA) urinary symptom score \> than 8, (suggestive of moderate LUTS) prostate size \> 40cc, no prostate nodule/tenderness/firmness and increased PSA between 4-10ng/ml requiring prostate biopsy will be enrolled. Then, they will have prostate MRIs/needle biopsies and blood/urine collection followed by treatment with Finasteride (standard of care). They will be followed in urology clinic for assessment of LUTS every 6 months and Finasteride responsiveness at the 12-month time point. Prostate biopsy samples will be evaluated for SRD5A2 gene expression/methylation, hormonal androgen/estrogen levels (which will be repeated in blood samples). Prostate MRIs will assess size/inflammatory changes at the start and 3-year time points.
Effective modeling of patient representation from electronic health records (EHRs) is increasingly becoming a vital research topic. Yet, modeling the non-stationarity in EHR data has received less attention. Most existing studies follow a strong assumption of stationarity in patient representation from EHRs. However, in practice, a patient's visits are irregularly spaced over a relatively long period of time, and disease progression patterns exhibit non-stationarity. Furthermore, the time gaps between patient visits often encapsulate significant domain knowledge, potentially revealing undiscovered patterns that characterize specific medical conditions. To address these challenges, we introduce a new method which combines the self-attention mechanism with non-stationary kernel approximation to capture both contextual information and temporal relationships between patient visits in EHRs. To assess the effectiveness of our proposed approach, we use two real-world EHR datasets, comprising a total of 76,925 patients, for the task of predicting the next diagnosis code for a patient, given their EHR history. The first dataset is a general EHR cohort and consists of 11,451 patients with a total of 3,485 unique diagnosis codes. The second dataset is a disease-specific cohort that includes 65,474 pregnant patients and encompasses a total of 9,782 unique diagnosis codes. Our experimental evaluation involved nine prediction models, categorized into three distinct groups. Group 1 comprises the baselines: original self-attention with positional encoding model, RETAIN model, and LSTM model. Group 2 includes models employing self-attention with stationary kernel approximations, specifically incorporating three variations of Bochner's feature maps. Lastly, Group 3 consists of models utilizing self-attention with non-stationary kernel approximations, including quadratic, cubic, and bi-quadratic polynomials. The experimental results demonstrate that non-stationary kernels significantly outperformed baseline methods for NDCG@10 and Hit@10 metrics in both datasets. The performance boost was more substantial in dataset 1 for the NDCG@10 metric. On the other hand, stationary Kernels showed significant but smaller gains over baselines and were nearly as effective as Non-stationary Kernels for Hit@10 in dataset 2. These findings robustly validate the efficacy of employing non-stationary kernels for temporal modeling of EHR data, and emphasize the importance of modeling non-stationary temporal information in healthcare prediction tasks.
FIELD: petrochemical processes. SUBSTANCE: invention, in particular, concerns structural isomerization of linear olefins having at least 4 carbon atoms into corresponding branched metylisoolefins. Process includes (i) bringing hydrocarbon stream containing at least one above-indicated olefin into contact, at stream temperature, with isomerization catalyst containing at least one zeolite with one- or more-dimensional porous structure and pore size more than 0.42 nm and less than 0.7 nm and is distinguished by that contact is effected at temperature from 200 to 650 C with catalyst additionally containing up to 15 wt % of metal promoting oxidation of coke deposits and including additional stages: (ii) stopping contact of fed stream with catalyst after formation of coke deposits on catalyst surface; (iii) bringing catalyst with coke deposits into contact with oxygen- containing gas at temperature below 565 C, total system pressure above 1 atm, and partial oxygen pressure from 0.001 to 40 atm to burn away coke deposits from catalyst; and (iv) repeating stage (i) with catalyst prepared according to stage (iii). Catalytic composition is also described. EFFECT: increased yield of product, reduced catalyst regeneration time, and prolonged catalyst lifetime. 25 cl, 1 dwg, 2 tbl, 15 ex
BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) features KRAS mutations in approximately 90% of human cases and excessive stromal response, termed desmoplastic reaction. Oncogenic KRAS drives pancreatic carcinogenesis by acting on both epithelial cells and tumor microenvironment (TME). We have previously shown that Homeodomain-Interacting Protein Kinase 2 (HIPK2) cooperates with KRAS in sustaining ERK1/2 phosphorylation in human colorectal cancers. Here, we investigated whether HIPK2 contributes to oncogenic KRAS-driven tumorigenesis in vivo, in the onset of pancreatic cancer.
METHODS: We employed an extensively characterized model of KRASG12D-dependent preinvasive PDAC, the Pdx1-Cre;LSL-KRasG12D/+ (KC) mice. In these mice, HIPK2 was inhibited by genetic knockout in the pancreatic epithelial cells (KCH-/-) or by pharmacologic inactivation with the small molecule 5-IodoTubercidin (5-ITu). The development of preneoplastic acinar-to-ductal metaplasia (ADM), intraepithelial neoplasia (PanIN), and their associated desmoplastic reaction were analyzed.
RESULTS: In Hipk2-KO mice (KCH-/-), ERK phosphorylation was lowered, the appearance of ADM was slowed down, and both the number and pathologic grade of PanIN were reduced compared to Hipk2-WT KC mice. The pancreatic lesion phenotype in KCH-/- mice was characterized by abundant collagen fibers and reduced number of αSMA+ and pSTAT3+ desmoplastic cells. These features were reminiscent of the recently described human "deserted" sub-TME, poor in cells, rich in matrix, and associated with tumor differentiation. In contrast, the desmoplastic reaction of KC mice resembled the "reactive" sub-TME, rich in stromal cells and associated with tumor progression. These observations were confirmed by the pharmacologic inhibition of HIPK2 in KC mice.
CONCLUSION: This study demonstrates that HIPK2 inhibition weakens oncogenic KRAS activity and pancreatic tumorigenesis providing a rationale for testing HIPK2 inhibitors to mitigate the incidence of PDAC development in high-risk individuals.
BACKGROUND: Quadriceps tendon extensor mechanism disruption is an infrequent but devastating complication after total knee arthroplasty (TKA). Our knowledge of specific risk factors for this complication is limited by the current literature. Thus, this study aimed to identify potential risk factors for quadriceps tendon extensor mechanism disruption following TKA.
METHODS: A retrospective cohort analysis was performed using the PearlDiver Administrative Claims Database. Patients undergoing TKA without a prior history of quadriceps tendon extensor mechanism disruption were identified. Quadriceps tendon extensor mechanism disruption included rupture of the quadriceps tendon, patellar tendon, or fracture of the patella. Patients who had a minimum of 5 years of follow-up after TKA were included. A total of 126,819 patients were included. Among them, 517 cases of quadriceps tendon extensor mechanism disruption occurred (incidence 0.41%). Hypothesized risk factors were compared between those who had postoperative quadriceps tendon extensor mechanism disruption and those who did not.
RESULTS: On multivariate analysis, increased Charlson Comorbidity Index (odds ratio (OR): 1.10, 95% confidence interval (CI) [1.07 to 1.13]; P < .001), obesity (OR: 1.49, 95% CI [1.24 to 1.79]; P < .001), and fluoroquinolone use any time after TKA (OR: 1.24, 95% CI [1.01 to 1.52]; P = .036) were significantly associated with quadriceps tendon extensor mechanism disruption.
CONCLUSIONS: Our study identified the incidence of quadriceps tendon extensor mechanism disruption following TKA as 0.41%. Identified risk factors for quadriceps tendon extensor mechanism disruption after TKA include an increased Charlson Comorbidity Index, obesity, and use of fluoroquinolones postoperatively.
With the discovery of lung cancer driver genes, postoperative adjuvant therapy for lung cancers has been revolutionized. ADJUVANT, EVAN, EVIDNECE and IMPACT, have successively conducted efficacy and safety studies in the field of postoperative adjuvant therapy after generation EGFR-TKI. Adjuvant targeted therapy is also recommended by guidelines based on the significant improvement of DFS in mutation-positive patients. Unfortunately, 55% of NSCLC patients are driver gene-negative. Research in postoperative mutation-negative patients is relatively lagging behind. Chemotherapy remains the treatment of choice at this time. How to delay recurrence of metastasis in this population needs further study. Studies have shown that 1 year of adjuvant atezolizumab after chemotherapy in postoperative driver gene-negative patients significantly prolongs median DFS. For any PD-L1-expressing stage II-IIIa patients, adjuvant atezolizumab therapy has a median DFS of 42.3 months. Atezolizumab is recommended in the NCCN 2021 edition of clinical guidelines for patients with stage IIb-IIIa TPS ≥ 1%. In recent years, there has been great progress in the study of combined adjuvant therapy of Chinese medicine after lung cancer surgery. At present, research on TCM in the field of postoperative lung cancer is mainly focused on combined chemotherapy, which can reduce the occurrence of adverse events, improve quality of life, prevent recurrence and metastasis, and increase survival rate. More and higher-grade clinical evidence is needed to explore and validate the combination of TCM with immunotherapy.

Using a multicenter, randomized, double-blind, controlled prospective study, 367 patients with stage II-IIIa driver gene-negative NSCLC after undergoing radical surgery will be randomly divided into experimental and control groups, and postoperative adjuvant therapy will be administered in two phases: (i) chemotherapy phase: observation group (chemotherapy + TCM 1), control group (chemotherapy + TCM 1 placebo); (ii) immunization phase: observation group (ICIs + TCM2), control group (ICIs + TCM2 placebo). Treatment cycles will be 4 cycles of chemotherapy and 12 cycles of immunotherapy, and the indication for discontinuation will be the end of treatment or the patient's intolerance of treatment. Patients will be followed up regularly thereafter. The primary efficacy assessments are: disease-free survival (DFS); secondary efficacy assessments are: (1) quality of life: EORTC QLQ-LC43(V 4.0) scale; (2) changes in clinical signs of TCM; (3) biological indicators: ctDNA-MRD, peripheral blood immune factor series, plasma exosomal PD-L1; (4) overall survival (OS). An assessment of the toxic side effects and safety of the treatment regimen is also made by using CTC AE (V5.0). This regimen is expected to prolong disease-free survival and reduce toxic side effects. The study will provide evidence to optimize and promote the protocol of postoperative TCM combined with immunotherapy for lung cancer.
The neurotoxicant trimethyltin (TMT) triggers cognitive impairment and hippocampal neurodegeneration. TMT is a useful research tool for the study of Alzheimer's disease (AD) pathogenesis and treatment. Although the antidiabetic agent metformin has shown promising neuroprotective effects, however, its precise modes of action in neurodegenerative disorders need to be further elucidated. In this study, we investigated whether metformin can mitigate TMT cognition impairment and hippocampal neurodegeneration. To induce an AD-like phenotype, TMT was injected i.p. (8 mg/kg) and metformin was administered daily p.o. for 3 weeks at 200 mg/kg. Our results showed that metformin administration to the TMT group mitigated learning and memory impairment in Barnes maze, novel object recognition (NOR) task, and Y maze, attenuated hippocampal oxidative, inflammatory, and cell death/pyroptotic factors, and also reversed neurodegeneration-related proteins such as presenilin 1 and p-Tau. Hippocampal level of AMP-activated protein kinase (AMPK) as a key regulator of energy homeostasis was also improved following metformin treatment. Additionally, metformin reduced hippocampal acetylcholinesterase (AChE) activity, glial fibrillary acidic protein (GFAP)-positive reactivity, and prevented the loss of CA1 pyramidal neurons. This study showed that metformin mitigated TMT-induced neurodegeneration and this may pave the way to develop new therapeutics to combat against cognitive deficits under neurotoxic conditions.
UNLABELLED: Gastric cancer is the fifth most diagnosed cancer in the world. Infection by the bacteria Helicobacter pylori (HP) is associated with approximately 75% of gastric cancer cases. HP infection induces chronic gastric inflammation, damaging the stomach and fostering carcinogenesis. Most mechanistic studies on gastric cancer initiation are performed in mice and utilize either mouse-adapted strains of HP or the natural mouse pathogen Helicobacter felis (HF). Here, we identified the differences in gastric inflammation, atrophy, and metaplasia associated with HP and HF infection in mice. PMSS1 HP strain or the CS1 HF strain were co-cultured with mouse peritoneal macrophages to assess their immunostimulatory effects. HP and HF induced similar cytokine production from cultured mouse peritoneal macrophages revealing that both bacteria exhibit similar immunostimulatory effects in vitro. Next, C57BL/6J mice were infected with HP or HF and were assessed 2 months post-infection. HP-infected mice caused modest inflammation within both the gastric corpus and antrum, and did not induce significant atrophy within the gastric corpus. In contrast, HF induced significant inflammation throughout the gastric corpus and antrum. Moreover, HF infection was associated with significant atrophy of the chief and parietal cell compartments and induced the expression of pyloric metaplasia (PM) markers. HP is poorly immunogenic compared to HF. HF induces dramatic CD4+ T cell activation, which is associated with increased gastric cancer risk in humans. Thus, HP studies in mice are better suited for studies on colonization, while HF is more strongly suited for studies on the effects of gastric inflammation on tumorigenesis.  .
IMPORTANCE: Mouse infection models with Helicobacter species are widely used to study Helicobacter pathogenesis and gastric cancer initiation. However, Helicobacter pylori is not a natural mouse pathogen, and mouse-adapted H. pylori strains are poorly immunogenic. In contrast, Helicobacter felis is a natural mouse pathogen that induces robust gastric inflammation and is often used in mice to investigate gastric cancer initiation. Although both bacterial strains are widely used, their disease pathogenesis in mice differs dramatically. However, few studies have directly compared the pathogenesis of these bacterial species in mice, and the contrasting features of these two models are not clearly defined. This study directly compares the gastric inflammation, atrophy, and metaplasia development triggered by the widely used PMSS1 H. pylori and CS1 H. felis strains in mice. It serves as a useful resource for researchers to select the experimental model best suited for their studies.
Advanced in vivo imaging techniques have facilitated the comprehensive visual exploration of animal biological processes, leading to groundbreaking discoveries such as the glymphatic system. However, current limitations of macroscopic imaging techniques impede the precise investigation of physiological parameters regulating this specialized lymphatic transport system. While NIR-II fluorescence imaging has demonstrated advantages in peripheral lymphatic imaging, there are few reports regarding its utilization in the glymphatic system. To address this, a noninvasive transcranial macroscopic NIR-II fluorescence imaging model is developed using a cyanine dye-protein coupled nanoprobe. NIR-II imaging with high temporal and spatial resolution reveals that hypothermia can increase the glymphatic influx by reducing the flow rate of cerebrospinal fluid. In addition, respiratory rate, respiratory amplitude, and heart rate all play a role in regulating the glymphatic influx. Thus, targeting the glymphatic influx may alter the trajectory of immune inflammation following brain injury, providing therapeutic prospects for treating brain injury with mild hypothermia.
<P>PROBLEM TO BE SOLVED: To provide an antibacterial composition comprising a galloyl glucose as an active ingredient, to provide an antibacterial agent comprising the composition and to provide a method for extracting the galloyl glucose.  <P>SOLUTION: The antibacterial composition comprises the galloyl glucose (e.g. 1,2,3,4,6-pentagalloyl glucose, 1,2,3,6-tetragalloyl glucose, 1,2,4,6-tetragalloyl glucose and 2,3,4,6-tetragalloyl glucose) as the active ingredient. The method for extracting the galloyl glucose comprises a step of obtaining a solvent extract from Paoneia albiflora Pall. by solid-liquid extraction, a step of fractionating a component containing the antibacterial substance from the solvent extract by a chromtography and a step of separating at least the galloyl glucose from the component containing the antibacterial substance by the chromatography.  <P>COPYRIGHT: (C)2007,JPO&INPIT
The invention discloses a traditional Chinese medicinal psoralen-containing composition for treating stomach cancer and a preparation method and an application thereof. The traditional Chinese medicinal composition comprises the following components: by weight, 50%-96.77% of roud cardamon seed volatile oil, and 3.23%-50% of psoralen. The invention also discloses a preparation method of the traditional Chinese medicinal psoralen-containing composition. The invention also discloses an application of the traditional Chinese medicinal psoralen-containing composition in the preparation of a medicine against stomach cancer as well as a medicine for inhibiting tumor cells. Combination of psoralen and roud cardamon seed volatile oil has a tumor-inhibitory synergism. When the weight ratio of psoralen to roud cardamon seed volatile oil is 1:30, the prepared traditional Chinese medicinal psoralen-containing composition can remarkably inhibit growth of tumors in mice. Analyzing from theory of traditional Chinese medicine, as roud cardamon seed is a medicine for resolving damp with aromatics, roud cardamon seed can assist efficacy of the mild drug Psoralea corylifolia when fragrance of roud cardamon seed overflows all around. With the compatibility of the two drugs, the good effect of treating tumor is achieved.
Patients in the control group will take their baseline anti-heart failure medications at the original doses according to 2023 ESC Guidelines for heart failure, without any changes except when medically required. The anti-heart failure drugs treatment is consistent in both arms.
Complex viruses are assembled from simple protein subunits by sequential and irreversible assembly. During genome packaging in bacteriophages, a powerful molecular motor assembles at the special portal vertex of an empty prohead to initiate packaging. An aspect of the invention relates to the phage T4 packaging machine being highly promiscuous, translocating DNA into finished phage heads as well as into proheads. Single motors can force exogenous DNA into phage heads at the same rate as into proheads and phage heads undergo repeated initiations, packaging multiple DNA molecules into the same head. This shows that the phage DNA packaging machine has unusual conformational plasticity, powering DNA into an apparently passive capsid receptacle, including the highly stable virus shell, until it is full. These features allow for the design of a novel class of nanocapsid delivery vehicles.
Type 2 diabetes (T2DM) patients are at high-risk for advanced fibrosis (AF) due to non-alcoholic fatty liver disease (NAFLD), recently renamed Metabolic dysfunction-Associated Liver Disease (MASLD). Thus, patients with T2DM are recognized as a priority target for the screening of MASLD-related advanced fibrosis and a systematic screening for AF is currently recommended in T2DM patients using FIB-4 and liver stiffness measurement (LSM). Hence, these Non-Invasive Tests (NITs) are expected to be integrated in the management of T2DM in a near future. Indeed diabetologists are becoming more aware of the need for liver assessment in patients with T2DM recently reinforced by recent clear recommendations supporting the use of non-invasive test (NITs) such as LSM for the detection of liver fibrosis. Several studies indicate that MASLD increases the risk of T2DM complications. However, there are very limited data and no prospective longitudinal data assessing the progression of MASLD and relevant clinical outcomes in T2DM patients included in liver screening using these NITs. This provides a unique opportunity to better stratify T2DM and to understand the heterogeneity among patients with T2DM by defining patient's profiles linked the progression of MASLD and relevant clinical outcomes.

Therefore, the main objective of the project is to investigate the ability of baseline non-invasive biomarkers to discriminate patients with a progression of MASLD from patients without progression of MASLD among patients with T2DM and to investigate the association between clinical outcomes related to the natural evolution of MASLD and T2DM and baseline biomarkers.