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  • Open Access

    ARTICLE

    Drought-Mediated Modulation in Metabolomic Profiling of Leaf, Growth, Ecophysiology and Antioxidants

    Khalid Rehman Hakeem1,2,3,*, Hesham F. Alharby1, M. Irfan Qureshi4

    Phyton-International Journal of Experimental Botany, Vol.92, No.12, pp. 3323-3344, 2023, DOI:10.32604/phyton.2023.030212

    Abstract

    Abiotic stresses, including drought, have been found to affect the growth and medicinal quality of numerous herbs. The proposed study aims to study the effects of different drought regimes on the metabolic profile, growth, ecophysiology, cellular antioxidants, and antioxidant potential of Nigella sativa (Black cumin) leaf. Forty-day-old seedlings of N. sativa were exposed to three regimes of drought (control, moderate and high) for a week. UPLC-MS/MS metabolic profile of the leaf reveals the presence of more than a hundred metabolites belonging to anthocyanins, chalcones, dihydro flavonoids, flavonoids, flavanols, flavones, flavonoid carbonoside, isoflavones, etc. Drought was found to alter the contents… More >

  • Open Access

    ARTICLE

    UCHL5 inhibits U251 glioma cell proliferation and tumor growth via stabilizing and deubiquitinating PTEN

    YUE XIAO1,2,#, WENJING MA2,#, XINYI CHEN2, WEIWEI HU3, QIANQIAN DI2, XIBAO ZHAO2, GUODONG HUANG1, WEILIN CHEN1,2,*

    BIOCELL, Vol.47, No.12, pp. 2617-2625, 2023, DOI:10.32604/biocell.2023.042476

    Abstract Background: Glioma is the most common primary brain tumor. Exploration of new tumorigenesis mechanism of glioma is critical to determine more effective treatment targets as well as to develop effective prognosis methods that can enhance the treatment efficacy. We previously demonstrated that the deubiquitinase biquitin carboxyl-terminal hydrolase L5 (UCHL5) was downregulated in human glioma. However, the effect and mechanism of UCHL5 on the proliferation of glioma cells remains unknown. Methods: Transfection of siRNA was used to knockdown the expression of UCHL5 in U251 cells. The 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide (MTT) assay, Edu assay, and colony formation assay were employed to… More > Graphic Abstract

    UCHL5 inhibits U251 glioma cell proliferation and tumor growth via stabilizing and deubiquitinating PTEN

  • Open Access

    ARTICLE

    Serial Multiple Mediation of the Relationship between Positive Coping Style and Post-Traumatic Growth among Chinese College Students in the Aftermath of COVID-19

    Qi Li, Jinsheng Hu*, Peng Wan

    International Journal of Mental Health Promotion, Vol.25, No.11, pp. 1173-1186, 2023, DOI:10.32604/ijmhp.2023.030343

    Abstract

    Given the ongoing character of COVID-19, higher-education students encountered multifaceted pressures brought about by the pandemic and had to overcome many difficulties during this period. Accordingly, it is imperative to identify the factors that may have protective effects on the social functioning and mental status of college students in the aftermath of COVID-19. This cross-sectional study sought to ascertain the internal mechanism of positive coping (PC) styles affecting post-traumatic growth (PTG) and considered the mediating roles of cognitive reappraisal (CR), psychological resilience (PR), and deliberate rumination (DR), which are essential for understanding how and to what extent these factors shaped… More >

  • Open Access

    ARTICLE

    Inhibition of VEGF-A expression in hypoxia-exposed fetal retinal microvascular endothelial cells by exosomes derived from human umbilical cord mesenchymal stem cells

    JING LI1,2, WANWAN FAN4, LILI HAO1, YONGSHENG LI5, GUOCHENG YU1, WEI SUN6, XIANQIONG LUO2,*, JINGXIANG ZHONG1,3,*

    BIOCELL, Vol.47, No.11, pp. 2485-2494, 2023, DOI:10.32604/biocell.2023.044177

    Abstract Objective: This study aimed to investigate the potential of human umbilical cord mesenchymal stem cell (hucMSC)-derived exosomes (hucMSC-Exos) in inhibiting hypoxia-induced cell hyper proliferation and overexpression of vascular endothelial growth factor A (VEGF-A) in immature human fetal retinal microvascular endothelial cells (hfRMECs). Methods: Exosomes were isolated from hucMSCs using cryogenic ultracentrifugation and characterized through various techniques, including transmission electron microscopy, nanoparticle tracking analysis, bicinchoninic acid assays, and western blotting. The hfRMECs were identified using von Willebrand factor (vWF) co-staining and divided into four groups: a control group cultured under normoxic condition, a hypoxic model group, a hypoxic group treated with… More > Graphic Abstract

    Inhibition of VEGF-A expression in hypoxia-exposed fetal retinal microvascular endothelial cells by exosomes derived from human umbilical cord mesenchymal stem cells

  • Open Access

    ARTICLE

    SIRT2 interacts with DDX24 to promote nasopharyngeal carcinoma growth

    HAIYING YUE, CHUNHUI WANG, HUIJUN ZHU, QINGHUA DU, JIAN LI, XUE OU, XIANGDE LI, QIULU ZHONG, YITING XIE, DANJING LUO, YIHE LI, CHUNXIAO LIANG, XUEMEI XU, SONGNAN DU, WENQI LIU*

    BIOCELL, Vol.47, No.11, pp. 2445-2452, 2023, DOI:10.32604/biocell.2023.042512

    Abstract Background: Nasopharyngeal carcinoma (NPC) is one of the most prevalent cancers in Southeast Asia. Sirtuin 2 (SIRT2) is a member of the NAD+-dependent deacetylase family and has been shown to play important roles in numerous biological processes. However, Its function in NPC remains uncertain. The primary aim of this study is to clarify the role of SIRT2 in NPC. Methods: In this research, we examined the effect of SIRT2 silencing on NPC cell proliferation and colony formation using vitro NPC cell lines. Co-immunoprecipitation and mass spectrometry was applied to identify SIRT2-interacting proteins in NPC cells. Results: In comparison to nasopharyngeal… More > Graphic Abstract

    SIRT2 interacts with DDX24 to promote nasopharyngeal carcinoma growth

  • Open Access

    ARTICLE

    EFFECT OF SPACESHIP ORBITAL TRANSFER ON SOLUTION CONVECTION DURING PROTEIN CRYSTAL GROWTH UNDER MICROGRAVITY

    Kun Zhang*, Liang Bi Wang

    Frontiers in Heat and Mass Transfer, Vol.7, pp. 1-7, 2016, DOI:10.5098/hmt.7.18

    Abstract Detailed numerical analysis is presented for the effect of spaceship orbital transfer on solution convection during protein crystal growth under microgravity. The results show that the flow and mass transfer during protein crystal growth are unsteady in the process of orbital transfer. For the case of quasi-steady acceleration, the flow is so weak that the effect of flow on concentration field can be negligible. For the case of position adjustment, the convection is enhanced with protein crystal diameter dc > 0.2 mm and slightly alters the purely diffusive concentration distribution under zero gravity condition. For the case of motor working,… More >

  • Open Access

    ARTICLE

    Aldo-keto reductase family member C3 (AKR1C3) promotes hepatocellular carcinoma cell growth by producing prostaglandin F2α

    KUO-SHYANG JENG1, PO-YU CHENG2, YUEH-HSIEN LIN2, PO-CHUN LIU2, PING-HUI TSENG3, YU-CHAO WANG4, CHIUNG-FANG CHANG5, CHUEN-MIIN LEU2,*

    Oncology Research, Vol.32, No.1, pp. 163-174, 2024, DOI:10.32604/or.2023.030975

    Abstract Hepatocellular carcinoma (HCC) is a leading cause of death worldwide. Current therapies are effective for HCC patients with early disease, but many patients suffer recurrence after surgery and have a poor response to chemotherapy. Therefore, new therapeutic targets are needed. We analyzed gene expression profiles between HCC tissues and normal adjacent tissues from public databases and found that the expression of genes involved in lipid metabolism was significantly different. The analysis showed that AKR1C3 was upregulated in tumors, and high AKR1C3 expression was associated with a poorer prognosis in HCC patients. In vitro, assays demonstrated that the knockdown of AKR1C3… More >

  • Open Access

    ARTICLE

    Inhibition of Ehrlich ascites carcinoma growth by melatonin: Studies with micro-CT

    SEHER YILMAZ1,2,*, ZÜLEYHA DOĞANYIĞIT3, MERT OCAK4, EVRIM SUNA ARIKAN SÖYLEMEZ5, ASLI OKAN OFLAMAZ3, SÜMEYYE UÇAR6, ŞÜKRÜ ATEŞ1, AMMAD AHMAD FAROOQI7

    Oncology Research, Vol.32, No.1, pp. 175-185, 2024, DOI:10.32604/or.2023.042350

    Abstract Melatonin is a versatile indolamine synthesized and secreted by the pineal gland in response to the photoperiodic information received by the retinohypothalamic signaling pathway. Melatonin has many benefits, such as organizing circadian rhythms and acting as a powerful hormone. We aimed to show the antitumor effects of melatonin in both in vivo and in vitro models through the mammalian target of rapamycin (mTOR) signaling pathway and the Argyrophilic Nucleolar Regulatory Region (AgNOR), using the Microcomputed Tomography (Micro CT). Ehrlich ascites carcinoma (EAC) cells were administered into the mice by subcutaneous injection. Animals with solid tumors were injected intraperitoneally with 50… More > Graphic Abstract

    Inhibition of Ehrlich ascites carcinoma growth by melatonin: Studies with micro-CT

  • Open Access

    ARTICLE

    Analysis of Pulmonary Arteries Growth after Initial Shunt Palliation in Neonates and Infants

    François-Xavier Van Vyve1,#, Karlien Carbonez2,#, Geoffroy de Beco1, Stéphane Moniotte2, Jean E. Rubay1, Mona Momeni3, Laurent Houtekie4, Alain J. Poncelet1,*

    Congenital Heart Disease, Vol.18, No.5, pp. 525-537, 2023, DOI:10.32604/chd.2023.042341

    Abstract Objective: Despite increasing enthusiasm for neonatal repair, patients with ductal-dependent circulation (pulmonary/systemic) or restrictive pulmonary blood flow still require initial palliation. Ductal stenting has emerged as an endovascular approach whereas modified-Blalock-Taussig and central shunt remain surgical references. In this study, we analyzed the relationship between pulmonary artery growth, sites of shunt connection, or antegrade pulmonary blood flow in surgically placed shunts. The need for secondary catheter-based interventions or pulmonary arterioplasty was also investigated. Methods: A retrospective single-center study analyzing 175 patients undergoing surgery for a central or modified-Blalock-Taussig shunt. Outcome growth variables were right pulmonary artery/left pulmonary artery diameters/Z scores,… More > Graphic Abstract

    Analysis of Pulmonary Arteries Growth after Initial Shunt Palliation in Neonates and Infants

  • Open Access

    ARTICLE

    Maternal Vascular Dysfunction in Congenital Heart Defects

    Yanli Liu1,2, Fengzhen Han2, Jian Zhuang4, Yanqiu Ou4, Yanji Qu5, Yanyan Lin2, Weina Zhang2, Haiping Wang3,*, Liping Huang1,*

    Congenital Heart Disease, Vol.18, No.5, pp. 561-570, 2023, DOI:10.32604/chd.2023.030511

    Abstract Background: Research on fetal congenital heart defect (CHD) mostly focuses on etiology and mechanisms. However, studies on maternal complications or pathophysiology are limited. Our objective was to determine whether vascular dysfunction exists in pregnant women carrying a fetus with congenital heart defects. Methods: We conducted a case-control study. 27 cases of pregnant women carrying a fetus with major CHD admitted to our hospital for delivery between April 2021 and August 2022 were selected. Every case was matched with about 2 pregnant complication-free controls without fetal abnormalities. The proangiogenic and anti-angiogenic factors and pregnancy outcomes were compared. Results: The proangiogenic factors… More > Graphic Abstract

    Maternal Vascular Dysfunction in Congenital Heart Defects

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