bluuebunny/crossref_metadata_2025_split huggingface dataset:
Upregulated CDKN2A expression may be an independent protective factor in Luminal-like breast cancer
Authors: Qiu Yier , Lu Guowen , Wu Yingjie 
Published: August 2020

Abstract
Background: Previous studies revealed that CDKN2A (cyclin-dependent kinase inhibitor 2A) functioned as a tumour suppressor in various types of malignant tumours. The aim of the study was to clarify the value of CDKN2A expression in the prognosis of breast cancer.Method: Using the Cancer Genome Atlas (TCGA) database, we compared CDKN2A mRNA levels between breast cancer tissues and normal tissues and analyzed the relationship between clinical features and CDKN2A expression with the Wilcox test and the Kruskal-Wallis test. Kaplan-Meier and Cox analyses were performed to determine the correlation between CDKN2A expression and breast cancer prognosis. Gene set enrichment analysis (GSEA) was performed using the TCGA data set.Results: We first found that CDKN2A expression was markedly higher in breast cancer tissues than in normal tissues using the TCGA database (P=0.000). In addition, CDKN2A mRNA expression in breast cancer was positively correlated with age (P=0.018), histological types (P=0.028), ER status (P=0.000), PR status (P=0.000) and molecular subtypes (P=0.000). Kaplan-Meier analysis showed that increased CDKN2A expression was associated with increased survival time in breast cancer patients (P=0.000), especially in Luminal-like subtype. Univariate and multivariate Cox analyses indicated that CDKN2A expression was an independent prognostic biomarker for breast cancer (P=0.037). GSEA suggested that pathways involving cell adhesion molecules (CAMs), cytokine-receptor interactions, cytosolic DNA sensing, the cell cycle, and killer cell-mediated cytotoxicity were differentially enriched in the CDKN2A-high expression group.Conclusion: Our research demonstrated that high CDKN2A mRNA expression was an independent protective factor for improved prognosis in Luminal-like breast cancer. Additionally, the signaling pathways related to CAMs, cytokine-receptor interactions, cytosolic DNA sensing, the cell cycle, and killer cell-mediated cytotoxicity regulated by CDKN2A mRNA expression should be further studied.
Prostaglandin A1 inhibits the phosphorylation of tau via activating protein phosphotase 2A in a michael addition mechanism at the site of cysteine 377
Authors: Xu Guo-Biao , Guan Pei-Pei , Wang Pu 
Published: August 2020

Abstract
Background: Prostaglandin (PG) A1 is a metabolic product of cyclooxygenase 2 (COX-2), which potentially involved in regulating the development and progression of Alzheimer’s disease (AD). As a cyclopentenone (cy) PG, PGA1 is characterized by the presence of a chemically reactive α, β-unsaturated carbonyl. Although PGA1 is potentially involved in regulating multiple biological processes via michael addition, its specific roles in AD remained unclear.Methods: The tauP301S transgenic (Tg) mice were employed as in vivo AD models and neuroblastoma (N) 2a cells as in vitro neuronal models. By intracerebroventricular injected (i.c.v) with PGA1, the binding proteins to PGA1 are analyzed by HPLC-MS-MS. In addition, western blots are used to determine the phosphorylation of tau in PGA1 treated Tg mice in the absence or presence of okadaic acid (OA), an inhibitor of protein phosphotase (PP) 2A. Combining a synthesis of pull down assay, immunoprecipitation, western blots and HPLC-MS-MS, PP2A scaffold subunit A alpha (PPP2R1A) was identified to be activated by directly binding on PGA1 in cysteine 377-dependent manner. Via inhibiting the hyperphosphorylation of tau, morris maze test was employed to determine the inhibitory effects of PGA1 on cognitive decline of tauP301S Tg mice.Results: By incubation with neuroblastoma (n)2a cells and pull down assay, mass spectra (MS) analysis revealed that PGA1 binds with more than 1000 proteins, among which contains the proteins of AD, especially tau protein. Moreover, short-term administration of PGA1 to tauP301S Tg mice significantly decreased the phosphorylation of tau at the sites of Thr181, Ser202 and Ser404 in a dose-dependent manner. To the reason, it’s caused by activating PPP2R1A in tauP301S Tg mice. More importantly, PGA1 has the ability to form michael adduct with PPP2R1A via its cysteine 377 motif, which is critical for the enzymatic activity of PP2A. By activating PP2A, long-term application of PGA1 to tauP301S Tg mice significantly reduced the phosphorylation of tau, which results in improving the cognitive decline of tauP301S Tg mice.Conclusion: Our data provided the first insights needed to decipher the mechanisms underlying the ameliorating effects of PGA1 on cognitive decline of tauP301S Tg mice via activating PP2A in a PPP2R1AC377-dependent Michael adducting mechanisms.
India’s Tariff on CPO and CPO Price: Why Tariff Matters More than Price on Indonesia’s CPO
Authors: Negoro Habibulloh Adi , Herdiansyah Herdis , Sari Ravita , Munandar Muhammad Adis , Haryanto Joko Tri 
Published: August 2020

Abstract
Palm oil and its derivatives are one of Indonesia's prominent export commodities on the global market. India is one of the main biggest export destinations of Indonesia's CPO, thus every trade policy taken by India regarding CPO is important to Indonesia's trade balance. This study has found that tariff imposed by India on Indonesia's CPO has an elastic relationship compared to the CPO price. Moreover, this study found that changes in tariff are likely to significantly affect Indonesia's CPO export to India, compared to CPO price. Increase in price does not affect Indonesia's CPO export to India since it has inelastic relationship; as such the percentage of change in quantity does not exceed the change of price percentage.
Structure of the far-red light utilizing&nbsp;photosystem I of&nbsp;Acaryochloris
Authors: Hamaguchi Tasuku , Kawakami Keisuke , Shinzawa-Itoh Kyoko , Inoue-Kashino Natsuko , Itoh Shigeru , Ifuku Kentaro , Yamashita Eiki , Maeda Kou , Yonekura Koji , Kashino Yasuhiro 
Published: August 2020

Abstract
Acaryochloris marina is a cyanobacterium that can, uniquely, use far-red light for oxygenic photosynthesis. Here, we report the structure of the photosystem I reaction center of A. marina determined by cryo-electron microscopy at 2.5 Å resolution. The structure reveals a unique arrangement of electron carriers and light harvesting pigments. The primary electron donor P740 is a dimer of chlorophyll d/d′ and the primary electron acceptor pheophytin a, a metal-less chlorin different from the chlorophyll a common to all other oxygenic type I reaction centers. The architecture of the 11 subunits and identity of key components help explain how the low energy yield from far-red light is efficiently utilized for driving oxygenic photosynthesis.
A Case of Wernicke Encephalopathy in a Dementia Caregiver: the Need for Nutritional Evaluation in Family Caregivers
Authors: Ishida Mayumi , Uchida Nozomu , Itami Kumi , Sato Izumi , Yoshioka Akira , Onishi Hideki 
Published: August 2020

Abstract
Background: We report a case in which a family member caring for her mother with dementia developed Wernicke encephalopathy, which is a neuropsychiatric disorder caused by acute/subacute thiamine deficiency, during the course of care. Case presentation: A 63-year-old woman consulted our psychiatric outpatient clinic complaining of difficulty in providing care. She had started caring for her mother with dementia 6 months previously, during which time she began to feel tired. In addition, a loss of appetite had appeared 2 months prior to her visit, and this had decreased to about 30% of normal from 10 days previously. Neurologically, she experienced mild unsteadiness, but she was fully conscious and had no ocular symptoms. Based on the fact that the store of thiamine in the body is exhausted in about 18 days, the possibility of thiamine deficiency was considered, and her unsteadiness disappeared after an intravenous injection of thiamine. Test results showed her serum thiamine level to be abnormally low, and the patient was diagnosed with Wernicke encephalopathy. Conclusions: The burden of caring for a dementia patient may affect the nutritional status of the family caregiver. Thiamine deficiency should be one of the items considered as a nutritional issue in such caregivers.
A Proteomic Repertoire of Autoantigens Identified from the Classic Autoantibody Clinical Test Substrate HEp-2 Cells
Authors: Wang Julia Y , Zhang Wei , Rho Jung-hyun , Roehrl Michael W , Roehrl Michael H. 
Published: August 2020

Abstract
Background: Autoantibodies are a hallmark of autoimmune diseases. Autoantibody screening by indirect immunofluorescence staining of HEp-2 cells with patient sera is a current standard in clinical practice. Differential diagnosis of autoimmune disorders is based on commonly recognizable nuclear and cytoplasmic staining patterns. In this study, we attempted identifying as many autoantigens as possible from HEp-2 cells using a unique DS-affinity enrichment strategy.Methods: HEp-2 cells were cultured and lysed. Total proteins were extracted from cell lysate and fractionated with DS-Sepharose resins. Proteins were eluted with salt gradients, and fractions with low to high affinity were collected and sequenced by mass spectrometry. Literature text mining was conducted to verify the autoantigenicity of each protein. Protein interaction network and pathway analyses were performed on all identified proteins. Results: This study identified 107 proteins from fractions with low to high DS-affinity. Of these, 78 are verified autoantigens with previous reports as targets of autoantibodies, whereas 29 might be potential autoantigens yet to be verified. Among the 107 proteins, 82 can be located to nucleus and 15 to the mitotic cell cycle, which may correspond to the dominance of nuclear and mitotic staining patterns in HEp-2 test. There are 55 vesicle-associated proteins and 12 ribonucleoprotein granule proteins, which may contribute to the diverse speckled patterns in HEp-2 stains. There are also 32 proteins related to the cytoskeleton. Protein network analysis indicates that these proteins have significantly more interactions among themselves than would be expected of a random set, with the top 3 networks being mRNA metabolic process regulation, apoptosis, and DNA conformation change.Conclusions: This study provides a proteomic repertoire of confirmed and potential autoantigens for future studies, and it provides strong support for a unifying mechanism of autoantigenicity on how self-molecules may form molecular complexes with DS to elicit autoimmunity, which may help unravel the molecular etiology of autoimmunity and deepen our understanding of autoimmune diseases.
Factors associated with the poor outcomes in diabetic patients with COVID-19
Authors: Rastad Hadith , Ejtahed Hanieh-Sadat , Mahdavi-Ghorabi Armita , Safari Anis , Shahrestanaki Ehsan , Rezaei Mohammad , Niksima Mohammad Mahdi , Zakani Akram , Manshadi Seyede Hanieh Dehghan , Ochi Fatemeh , saedi Shabnam , Khodaparast Zeinab , Hassani Neda Shafiabadi , Azimzadeh Mehdi , Qorbani Mostafa 
Published: August 2020

Abstract
Background
Diabetic’s patients are supposed to experience higher rates of COVID-19 related poor outcomes. We aimed to determined factors predicting poor outcomes in hospitalized diabetic patients with COVID-19.
Methods
This retrospective cohort study included all adult diabetic patients with radiological or laboratory confirmed COVID-19 who hospitalized between 20 February 2020 and 27 April 2020 in Alborz province, Iran. Data on demographic, medical history, and laboratory test at presentation were obtained from electronic medical records. Diagnosis of diabetes mellitus was self-reported. Comorbidities including cancer, rheumatism, immunodeficiency, or chronic diseases of respiratory, liver, and blood were classified as “other comorbidities” due to low frequency. The assessed poor outcomes were in-hospital mortality, need to ICU care, and receiving invasive mechanical ventilation. Self-reported. Multivariate logistic regression models were fitted to quantify the predictors of in-hospital mortality from COVID-19 in patients with DM.
Results
Of 455 included patients, 98(21.5%) received ICU care, 65(14.3%) required invasive mechanical ventilation, and 79 (17.4%) dead. In the multivariate model, significant predictors of “death of COVID-19” were age 65 years or older (OR (95% CI): 2.0 (1.16–3.44), chronic kidney disease (CKD) (2.05 (1.16–3.62), presence of “other comorbidities” (2.20 (1.04–4.63)), neutrophil count ≥ 8.0 × 10⁹/L )6.62 (3.73–11.7 ((, Hb level < 12.5 g/dl (2.05 (1.13–3.72) (, and creatinine level ≥ 1.36 mg/dl (3.10 (1.38–6.98)). (All p –values < 0.05). Some of these factors were also associated with other assessed poor outcomes, e.g., need to ICU care or invasive mechanical ventilation.
Conclusions
Diabetic patients with age 65 years or older, comorbidity CKD, “other comorbidities”, as well as neutrophil count ≥ 8.0 × 10⁹/L, Hb level < 12.5 g/dl, and creatinine level ≥ 1.36 mg/dl, were more likely to dead after COVID-19. Presence of hypertension and cardiovascular disease were associated with none of the poor outcomes.
Identification of an immune-related gene signature to improve prognosis prediction of colorectal cancer patients
Authors: Dai Siqi , Xu Shuang , Ye Yao , Ding Kefeng 
Published: August 2020

Abstract
Background: Despite recent advance in immune therapy, great heterogeneity exists in colorectal cancer (CRC) patients’ outcome. In this study, we aimed to analyze the Immune-related gene (IRG) expression profiles from two independent public databases and develop an effective signature to forecast patients’ prognosis.Method: IRGs were collected from The Cancer Genome Atlas (TCGA) database to identify a prognostic genes signature, which was verified in Gene Expression Omnibus (GEO) database. Gene function enrichment and immune cell infiltration analyses were conducted. A prognostic nomogram was built incorporating the IRG signature with clinical risk factors.Results: The training and test datasets had 487 and 579 patients, respectively. A prognostic six-gene-signature (CCL22, LIMK1, MAPKAPK3, FLOT1, GPRC5B and IL20RB) was developed through feature selection, and yielded incredible differentiation between low and high-risk group in the training set (P < 0.001), which was confirmed in the test group (P < 0.001). The signature outperformed tumor staging regarding survival prediction. Go and KEGG functional annotation analysis suggested the signature were significantly enriched in metabolic process and regulation of immunity (P<0.05). When combined with clinical risk factors, the model showed robust prediction capability.Conclusion: The immune-related six-gene signature is a reliable prognostic indicator for CRC patients and could bring insight for personalized cancer management.
CD137 agonist induces gastric cancer cell apoptosis by enhancing the functions of CD8+ T cells via NF-κB signaling
Authors: Hu Ben-Shun , Tang Tian , Wu Tie-Long , Sheng Ying-Yue , yuzheng xue 
Published: August 2020

Abstract
Background: CD137 is a target for tumor immunotherapy. However, the role of CD137 in gastric cancer (GC), especially in inducing GC cell apoptosis, has not been studied. Methods: Foxp3+ and CD8+ T cells in GCs were investigated using immunohistochemistry (IHC). CD137 expression in GCs was detected using flow cytometry, IHC and immunofluorescence (IF). Peripheral blood mononuclear cells (PBMCs) and CD8+ T cells isolated from peripheral blood were stimulated with a CD137 agonist in vitro. CD8+ T cell proliferation and p65 expression was examined using flow cytometry. P65 nuclear translocation was analyzed using IF. IL-10, TGF-β, IFN-γ, perforin and granzyme B were detected using real-time quantitative PCR (real-time PCR). PBMCs and primary GC cells were cocultured and stimulated with a CD137 agonist in vitro. Apoptosis of primary GC cells was detected using flow cytometry. Results: Our data demonstrated that GC tumors showed characteristics of an immunosuppressive microenvironment. CD137 was predominantly expressed in CD8+ T cells in GCs and had a positive correlation with tumor cell differentiation. The CD137 agonist promoted CD8+ T cell proliferation and increased the secretion of IFN-γ, perforin and granzyme B, which induced primary GC cell apoptosis. Mechanistically, this study found that the CD137 agonist induced NF-κB nuclear translocation in CD8+ T cells. Conclusion: Our results demonstrated that a CD137 agonist induced primary GC cell apoptosis by enhancing CD8+ T cells via activation of NF-κB signaling.
Effect of the COVID-19 pandemic on acute stroke reperfusion therapy: data from the Lyon Stroke Center Network
Authors: PLUMEREAU Cécile , CHO Tae-Hee , BUISSON Marielle , AMAZ Camille , CAPPUCCI Matteo , DEREX Laurent , ONG Elodie , FONTAINE Julia , RASCLE Lucie , RIVA Roberto , SCHIAVO David , BENHAMED Axel , DOUPLAT Marion , BONY Thomas , TAZAROURTE Karim , TUTTLE Célia , EKER Omer Frank , BERTHEZENE Yves , OVIZE Michel , NIGHOGHOSSIAN Norbert , MECHTOUFF Laura 
Published: August 2020

Abstract
BackgroundThe coronavirus disease 2019 (COVID-19) pandemic would have particularly affected acute stroke care. However, its impact is clearly inherent to the local stroke network conditions. We aimed to assess the impact of COVID-19 pandemic on acute stroke care in the Lyon comprehensive stroke center during this period.MethodsWe conducted a prospective data collection of patients with acute ischemic stroke (AIS) treated with intravenous thrombolysis (IVT) and/or mechanical thrombectomy (MT) during the COVID-19 period (from 29/02/2020 to 10/05/2020) and a control period (from 29/02/2019 to 10/05/2019). The volume of reperfusion therapies and pre and intra-hospital delays were compared during both periods.ResultsA total of 208 patients were included. The volume of IVT significantly decreased during the COVID-period (55 (54.5%) vs 74 (69.2%); p=0.03) and was mainly due to time delay among patients treated with MT. The volume of MT remains stable over the two periods (72 (71.3%) vs 65 (60.8%); p=0.14) but the door-to-groin puncture time increased in patients transferred for MT (237 [187-339] vs 210 [163-260]; p<0.01). The daily number of Emergency Medical Dispatch calls considerably increased (1502 [1133-2238] vs 1023 [960-1410]; p<0.01).ConclusionsOur study showed a decrease of the volume of IVT, whereas the volume of MT remained stable although intra-hospital delays increased for transferred patients during the COVID-19 pandemic. These results contrast in part with the national surveys and suggest that the impact of the pandemic may depend on local stroke care networks.
Perceived Risk and Protective Behaviors regarding COVID-19 among Iranian Pregnant Women
Authors: Aghababaei Soodabeh , Bashirian Saeed , Soltanian Alireza , Refaei Mansooreh , Omidi Tahereh , Ghelichkhani Samereh , Soltani Farzaneh 
Published: August 2020

Abstract
Background: Despite the vulnerability of pregnant women, few studies have been conducted on their perceived risk and protective behaviors during COVID-19 pandemic. The present study aims to investigate the perceived risk and protective behaviors regarding COVID-19 among Iranian pregnant women. Results: 93.8% of pregnant women had a high level of knowledge, 97.3% had high performance in protective behaviors, and 72.9% had a moderate level of risk perception related to COVID-19. The highest mean score of knowledge was observed in women who had a history of influenza in their previous pregnancies (90.97±5.94). The mean score of protective behaviors was significantly higher in women with a high economic level (97.78±5.11), and the highest level of risk perception was observed in nulliparous women (59.97±9.80). Risk perception was an independent predictor of protective behaviors related to COVID-19 (P < 0.05). Conclusion: Pregnant women had a high level of knowledge, high performance in protective behaviors, and a moderate level of risk perception related to COVID-19. History of influenza in the previous pregnancies, high economic level, and nulliparity were associated with higher levels of knowledge, protective behaviors, and risk perception, respectively. Risk perception of pregnant women regarding COVID-19 can predict their protective behaviors.
Dyslipidemia and Its Associated Factors in Women of the Bandare-Kong Cohort Study
Authors: Nikparvar Marzieh , Khaladeh Mohadeseh , Yousefi Hadi , Kheirandish Masoumeh 
Published: August 2020

Abstract
Background: Dyslipidemia, a major risk factor for cardiovascular diseases, has become a global issue. Due to geographic and demographic variations in the prevalence of dyslipidemia, this study aimed to evaluate dyslipidemia and its associated factors in women of the Bandare-Kong Cohort Study (BKNCD).Methods: This study was conducted on women from the population-based BKNCD, as part of the Prospective Epidemiological Research Studies in IrAN (PERSIAN). Sociodemographic data, medical history, and anthropometric indices were collected. Diastolic blood pressure, systolic blood pressure, fasting plasma glucose, serum triglyceride (TG), total cholesterol (TC), high-density lipoprotein (HDL), and low-density lipoprotein (LDL) were measured. Daily calorie intake and weekly metabolic equivalent of tasks were also recorded. Dyslipidemia was defined as any lipid abnormality based on the Adult Treatment Panel III criteria. Results: From the 2223 women in this study (mean age: 48.28±9.26 years), dyslipidemia was observed in 1884 (84.8%). High TC was the most common lipid abnormality (53.9%) followed by low HDL (50.8%). Dyslipidemia was most prevalent among women aged 65-70 years, the widowed, illiterate, unemployed, and overweight, with very low socioeconomic status, diabetes, and high waist circumference, hypertension, those using hookah and living in urban areas. Logistic regression revealed that only women with high WHR were at increased risk of dyslipidemia (OR=2.48, 95% CI:1.75-3.53, P<0.001). Having a high school diploma (OR=0.57, 95% CI:0.37-0.89, P=0.015) and living in rural areas (OR=0.68 95% CI:0.49-0.96, P=0.028) were protective.Conclusions: Dyslipidemia was highly prevalent in women of BKNCD. High WHR appears to be the only significant risk factor for dyslipidemia.
Morton Neuroma Surgery: Relation Clinical Results to Excised Sample Length
Authors: uzun metin , Tokat Fatma 
Published: August 2020

Abstract
Background:Morton’s neuroma (MN) is mechanical neuropathy of plantar interdigital nerve. It is one of the most common causes of forefoot pain. One of the most undesirable complications of MN surgery is recurrent neuroma. Excision level of MN is important to prevent recurrence. In this study, we aimed to find the relation resection lenght of MN to clinical results of MN surgery cases. Methods:76 samples sent with the diagnosis of Morton neuroma to the pathology department of our hospital between years 2010-2019. 66 patients whose clinical results were available were included in the study. Mean age was 41,5 (between 21 to 70). All of 66 patients were primary diagnosed 22 of them was left foot and the other 170 were right foot. 50 of them were female, and 16 were male. Recurrent neuromas, pathological sample more than one piece from one surgical site were excluded from the study. 72 of them were evaluated as a clinically and compare the sample lenght.Results:76 pathological specimens were prepared and examined by the same pathologist. Gross pathological appearance and histopathology findings were recorded. Mean sample length was 2,05 cm (between 0,7cm and 3,5 cm). 68 samples was smaller (89.5%) than 3 cm and only 8 sample (10.5%) was bigger than 3 cm. Average interdigital neuroma score improved from 20 to 62 points following the surgery (p<0.05).Conclusion:We recommend that, the common digital nerve should be cut from the proximal as much as possible to bury the proximal stump into the lumbrical muscles regardless of the sample size and using loupe magnification, careful and sharp dissection can be prevent injury to the PDNB.Level of Evidence: 2