Publications by authors named "Zhang Ran-Ran"

Article Synopsis
  • The photovoltaic effect in ferroelectric semiconductors, known as the FPV effect, is under exploration, particularly in the BFC-BTM system, as its microscopic mechanisms remain poorly understood.
  • Research revealed a transition from rhombohedral and tetragonal to pseudocubic phases for specific compositions, leading to reduced lattice distortion and fewer macro-sized ferroelectric domains.
  • Findings indicate that the FPV effect is influenced more by the complex microstructures and phase transitions than by the overall ferroelectric polarization, suggesting a shift current mechanism related to non-centrosymmetry.
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The fetal liver is a hematopoietic organ, hosting a diverse and evolving progenitor population. While human liver organoids derived from pluripotent stem cells (PSCs) mimic aspects of embryonic and fetal development, they typically lack the complex hematopoietic niche and the interaction between hepatic and hematopoietic development. We describe the generation of human Fetal Liver-like Organoids (FLOs), that model human hepato-hematopoietic interactions previously characterized in mouse models.

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An impairment of plasma membrane repair has been implicated in various diseases such as muscular dystrophy and ischemia/reperfusion injury. MOTS-c, a short peptide encoded by mitochondria, has been shown to pass through the plasma membrane into the bloodstream. This study determined whether this biological behavior was involved in membrane repair and its underlying mechanism.

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Inter-cellular transmission of mRNA is being explored in mammalian species using immortal cell lines (1-3). Here, we uncover an inter-cellular mRNA transfer phenomenon that allows for the adaptation and reprogramming of human primed pluripotent stem cells (hPSCs). This process is induced by the direct cell contact-mediated coculture with mouse embryonic stem cells (mESCs) under the condition impermissible for human primed PSC culture.

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Objective: To investigate the expression and clinical significance of T helper cell 9 (Th9) and its cytokine interleukin 9(IL-9) in peripheral blood of patients with chronic lymphocytic leukemia(CLL).

Methods: A total of 43 newly diagnosed patients with chronic lymphocytic leukemia in the First Affiliated Hospital of Xinjiang Medical University from June 2021 to June 2022 were selected as the case group. The patients were divided into Binet A group (13 cases), Binet B group (20 cases) and Binet C group (10 cases) by Binet staging system, and 20 healthy volunteers who underwent physical examinationin in our hospital in the same period served as control group.

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To improve the hydration properties of high-temperature pressed peanut protein isolate (HPPI), we investigated the effect of cold plasma (CP) oxidation on functional and structural properties. Compared to HPPI, the hydrated molecules number and the surface contact angle were significantly decreased at 70 W, from 77.2 × 10 to 17.

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Purpose: Most studies have supported the view that individuals prefer to reward the in-group and discriminate against the out-group in response to unfair offers in the Ultimatum Game. However, the current study advanced a different view, that is, the "black sheep effect", in which in-group members were punished more severely compared with out-group members. This study aimed to incorporate proposer identity and allocation motive as possible explanations for offer rejection.

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Mitochondrial damage is an important cause of heart dysfunction after severe burn injury. However, the pathophysiological process remains unclear. This study aims to examine the mitochondrial dynamics in the heart and the role of μ-calpain, a cysteine protease, in this scenario.

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Trimethylamine N-oxide (TMAO), a gut microbiota-dependent metabolite, has been shown to aggravate cardiovascular disease. However, the mechanisms of TMAO in the setting of cardiovascular disease progress remain unclear. Here, we aim to investigate the effects of TMAO on atherosclerosis (AS) development and the underlying mechanisms.

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Article Synopsis
  • Recognizing facial expressions is vital for social interactions, but previous research often looked at faces in isolation rather than in context.
  • This study explored how facial expressions of drivers are processed within the context of online car-hailing scenes, focusing on differences between happy and neutral expressions.
  • Findings showed that happy faces triggered stronger brain responses (larger amplitudes and shorter response times) compared to neutral faces, emphasizing the significance of scene context in understanding facial expressions.
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Recently, the incidence of diseases caused by nontuberculous mycobacteria (NTM) has been increasing worldwide, especially in immunocompromised patients and those with potential chronic lung disease. Vitek MS v3.0 matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) has emerged as a rapid and reliable method for identifying mycobacteria in clinical laboratories.

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  • The study examines the clinical features and significance of having multiple anti-neuronal antibodies in patients with autoimmune encephalitis (AE), finding it to be a rare occurrence with uncertain implications.
  • Out of 276 AE-positive patients, 22 (about 8%) had two or more antibodies, with symptoms including fever, seizures, and cognitive decline; 5 of these patients also had tumors, primarily small-cell lung cancer.
  • Most patients were treated with steroids and immunotherapy, showing improvement, but three patients died due to related complications, highlighting the potential severity of coexisting antibodies in AE cases.
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Polyaspartic acid (PASP), a well-known green scale inhibitor for industrial water treatment, might be decomposed with prolonged duration, and its anti-scaling performance against CaCO and CaSO is diminished at a low concentration (<10 mg L) and a high temperature. With semi-ethylenediaminetetraacetic acid (EDTA) tetrasodium salt as the mimicking model, novel phosphorus-free PASP-capped 2-aminoethylamino acid (PASP-EDA) containing side chains bearing multi-functional groups is rationally designed and successfully prepared the ring-opening reaction of cheap poly(succinimide) under mild reaction conditions with the assistance of readily available 2-aminoethyl amino acid. The static scale inhibition method is used to evaluate the scale inhibition performance of the as-synthesized PASP derivative.

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Purpose: Syncytin-1 may play a role in several neuropsychiatric disorders, but its function in anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis is unknown. The purpose of this study was to examine the possible mechanism of action of syncytin-1 in patients with anti-NMDAR encephalitis.

Patients And Methods: Twenty patients with anti-NMDAR encephalitis and eight controls were recruited.

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Background And Objectives: Low free triiodothyronine (FT3) is usually associated with worse functional outcome in critical illness; however, the information on thyroid dysfunction and autoimmune encephalitis (AE) is limited. This study aims to evaluate the clinical prognostic value of thyroid function and low-T3 syndrome in patients with multiple subtypes of AE.

Methods: In this retrospective study, we identified the hospital records of 319 candidate patients with AE admitted between January 2016 and December 2020.

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We conducted a survey to assess vaccination coverage, vaccination willingness, and variables associated with vaccination hesitancy to provide evidence on coronavirus disease (COVID-19) vaccination strategies. This anonymous questionnaire study conducted a multicenter, cross-sectional survey of outpatients and inpatients with epilepsy (PWE) registered in epilepsy clinics, in 2021, in 10 hospitals in seven cities of Shandong Province. A total of 600 questionnaires were distributed, and 557 valid questionnaires were returned.

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Objectives: Genetic factors play an important role in the onset of epilepsy, and the involvement of the RELN gene was recently discovered. This paper reports a family with a history of epilepsy caused by a heterozygous missense mutation in the RELN gene.

Methods: After a clear diagnosis was made in the proband with a family history of epilepsy, gene sequencing was performed on the proband and his family members.

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This study aimed to investigate epidemiological characteristics, clinical manifestations, and long-term outcomes of patients with autoimmune encephalitis (AE) in the east of China. From January 2015 to December 2019, 226 potential AE patients were recruited from five clinical centers, and a total of 185 patients who met the diagnostic criteria were included in the study. We retrospectively reviewed clinical features, auxiliary examinations, details of treatments, and outcomes of AE, and identified risk factors of poor prognosis.

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Autoimmune encephalitis (AE) is a heterogeneous neurological autoimmune disorder associated with cognitive and psychiatric symptoms. It can be divided into several subtypes based on autoantibodies. Anti-α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor encephalitis (AMPAR-E) is one of the recently discovered AE subtypes, usually manifesting limbic encephalitis and with a good prognosis.

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Nine new pyrrole alkaloids, including two undescribed dimeric pyrrole 2‑carbaldehyde alkaloids, lepipyrrolins A-B (1-2), seven pyrrole-alkaloid derivatives, macapyrrolins D-J (3-9), along with three known ones (10-12) were isolated from the rhizomes of Lepidium meyenii. Their structures and absolute configurations were demonstrated by extensive spectroscopic data (1D, 2D NMR, HRESIMS), and calculated electronic circular dichroism (ECD) experiment. Compounds 1, 3-12 were tested for their nitric oxide inhibitory effects.

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Objective: To study the clinical features and prognosis of childhood acute myeloid leukemia with myelodysplasia-related changes (AML-MRC).

Methods: A retrospective analysis was performed on the medical data of 14 children who were diagnosed with AML-MRC from June 2014 to March 2020, including clinical features, laboratory examination results, and prognosis.

Results: Among the 14 children with AML-MRC, there were 9 boys and 5 girls, with a median age of 11 years (range: 1-17 years), a median leukocyte count of 8.

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With the discovery of circulating cell-free fetal DNA (cffDNA) in maternal plasma, noninvasive prenatal testing became possible. However, analysis of low-level cffDNA against high background maternal DNA remains complicated and challenging. To circumvent this limitation, selective amplification of cffDNA was used in this study.

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Purpose: To describe the clinical manifestation, immunotherapy, and long-term outcomes of anti-leucine-rich glioma-inactivated 1 (LGI1) encephalitis.

Patients And Methods: This study was a retrospective analysis of 117 patients with a diagnosis of anti-LGI1 encephalitis identified from the databases of multiple clinical centers between September 2014 and December 2019. The clinical features, ancillary test results, and details of long-term outcomes were evaluated.

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Article Synopsis
  • FLT3 mutations are linked to poor outcomes in acute myeloid leukemia (AML), and while FLT3 inhibitors can induce remission, resistance often develops in patients over time.
  • 4-Hydroxyphenyl retinamide (4-HPR) has shown promise as a cancer treatment and is particularly toxic to AML cells with FLT3-ITD mutations, suggesting it could be an effective option for these patients.
  • The study found that 4-HPR works by increasing reactive oxygen species (ROS) production and inhibiting NF-κB, which helps target FLT3-mutated AML cells specifically.
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  • The study developed a human liver organoid (HLO) model to better understand and predict drug-induced liver injury (DILI), addressing challenges in drug development related to liver toxicity.
  • Researchers generated HLO from pluripotent stem cells, ensuring they mimicked the function and structure of human liver cells, and created a high-speed imaging platform for testing how various drugs affect liver health.
  • The HLO model showed high predictive accuracy for assessing liver toxicity of marketed drugs, enabling better identification of drugs at risk for causing serious liver damage and potentially informing safer drug design.
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