The skin, as the largest organ in the human body, serves as the primary physical barrier and plays a crucial role in the immune defense process. Immune-related skin diseases encompass a spectrum of complex dermatological conditions characterized by aberrant immune responses, including the production of autoantibodies and dysregulation of inflammatory mediators. Growing evidence suggest a heightened prevalence of comorbid neuropsychiatric disorders among patients with immune-related skin diseases, indicative of potential shared pathogenesis.
View Article and Find Full Text PDFEcotoxicol Environ Saf
November 2024
Background And Purpose: Psoriasis results from the interplay of innate and adaptive immunity in the skin. Oroxylin A (OA) has shown anti-inflammatory effects in various disorders. This study explores oroxylin A potential in treating psoriasis, particularly its impact on type I macrophage (Mφ1) polarization.
View Article and Find Full Text PDFMacroautophagy/autophagy plays a pivotal role in immune regulation. Its significance is evident in modulation of immune cell differentiation and maturation, physiologically and pathologically. Here, we investigate the role of macrophage autophagy on the development of atopic dermatitis (AD).
View Article and Find Full Text PDFDespite many recent emerging therapeutic modalities that have prolonged the survival of melanoma patients, the prognosis of melanoma remains discouraging, and further understanding of the mechanisms underlying melanoma progression is needed. Melanoma patients often have multiple genetic mutations, with BRAF mutations being the most common. In this study, public databases were exploited to explore a potential therapeutic target for BRAF-mutated melanoma.
View Article and Find Full Text PDFA one-pot cascade reaction for 2,3-dihydropyridinone synthesis was accomplished with 3-fluoro-2-iodo-1-methylpyridinium triflate as the halogen bond catalyst. The desired [4+2] cycloaddition products, bearing aryl, heteroaryl, alkyl, and alicyclic substituents, were successfully furnished in 28-99% yields. Mechanistic investigations proved that a strong halogen-bonding interaction forged between the iodopyridinium catalyst and imine intermediate was essential to dynamically masking the vulnerable C-I bond on the catalyst and accelerating the following aza-Diels-Alder reaction.
View Article and Find Full Text PDFCutaneous squamous cell carcinoma (cSCC) is a common cutaneous cancer with increasing incidence. Itraconazole has been identified as a potential anticancer drug candidate. However, the role of itraconazole in cSCC was still unclear.
View Article and Find Full Text PDFTwo unusual phenanthrene derivatives related to aporphine alkaloids, artapilosines A () and B (), as well as two biogenetically related known aporphine alkaloids, (-)-anonaine () and (-)--acetylanonaine (), were separated and purified from . Artapilosine A () is the first compound representative of a new class of phenanthrene derivatives having an unprecedented carbon skeleton, in which the six-membered nitrogen-containing heterocyclic structure in a typical aporphine alkaloid was substituted with a unique five-membered carbocyclic ring. This is the first report of the formation of a carbon-carbon bond between C-5 and C-6a in with the loss of the nitrogen atom N-6 in the classic aporphine alkaloid.
View Article and Find Full Text PDFA phytochemical investigation on the fruits of led to the isolation and characterisation of a new prenylated coumarin, artoheteronin (), together with six known analogues (-). The chemical structure of was elucidated using extensive spectral methods and the known compounds (-) were identified by comparing their spectral data with those reported in the literature. All known compounds (-) were isolated from the genus for the first time.
View Article and Find Full Text PDFMultitarget drugs have emerged as a promising treatment modality in modern anticancer therapy. Taking advantage of the synergy of NAMPT and EGFR inhibition, we have developed the first compounds that serve as dual inhibitors of NAMPT and EGFR. On the basis of CHS828 and erlotinib, a series of hybrid molecules were successfully designed and synthesized by merging of the pharmacophores.
View Article and Find Full Text PDFA phytochemical investigation on the stems and leaves of Wikstroemia chuii resulted in the isolation of three new daphnane diterpenes, wikstroechuins A-C (1-3), together with eight known analogues (4-11). The structures of new daphnane diterpenes (1-3) were determined on the basis of extensive spectroscopic methods and the known daphnane diterpenes (4-11) were identified by comparing their observable spectroscopic data with those reported spectral data in the literature. The anti-inflammatory effects as well as anti-HIV activities in vitro of all isolated daphnane diterpenes 1-11 were assessed.
View Article and Find Full Text PDFHypoxia is a key concern during the treatment of non-small cell lung cancer (NSCLC), and hypoxia-inducible factor 1 alpha (HIF-1α) has been associated with increased tumor resistance to therapeutic modalities such as cisplatin. Compensatory activation of nucleotide excision repair (NER) pathway is the major mechanism that accounts for cisplatin resistance. In the present study, we suggest a novel strategy to improve the treatment of NSCLC and overcome the hypoxia-induced cisplatin resistance by cotreatment with Oroxylin A, one of the main bioactive flavonoids of Scutellariae radix.
View Article and Find Full Text PDFA phytochemical study on the fruits of caused the isolation of a previously undescribed steroid, artoheterophoid (), together with seven known analogues (). The chemical structure of was elucidated on the basis of comprehensive spectroscopic methods and the known compounds () were identified by comparing their spectroscopic data with those reported in the literatures. All known compounds (-) were separated from for the first time.
View Article and Find Full Text PDF, usually known as Sapodilla, is a fairly slow-growing evergreen tropical tree which belongs to the genus (Sapotaceae), indigenous to Central America, southern Mexico, and the Caribbean. The ripe fruits of have been widely consumed as an uniquely flavored tropical fruit and verified to hold a variety of health benefits. In order to investigate the potential health-promoting chemical compositions from the fruits of cultivated in Hainan Island of China, a systematic and in-depth phytochemical study on this fruit was accordingly implemented.
View Article and Find Full Text PDFClausena lansium (Lour.) Skeels is an evergreen small tree or shrub with great economic value, which belongs to the genus Clausena of the Rutaceae family. C.
View Article and Find Full Text PDFTwelve prenylated carbazole alkaloids, containing a novel prenylated carbazole alkaloid, named as clausevestine (1), and 11 known prenylated carbazole alkaloids (2-12), were isolated and identified from the stems and leaves of Clausena vestita, which is a Chinese endemic plant. The chemical structure of 1 was established by means of comprehensive spectroscopic data analyses and the known compounds were determined via comparing their NMR and MS data as well as optical rotation values with those reported in literature. Especially, clausevestine (1) is an unusual prenylated carbazole alkaloid possessing an unprecedented carbon skeleton holding 20 carbon atoms.
View Article and Find Full Text PDFClausena lansium, also known as wampee, is a species of strongly scented evergreen trees belonging to the genus Clausena (Rutaceae), which is native to southern China. Its ripe fruits have been consumed as a very popular fruit and reported to possess a range of biological activities. To study the potential health-promoting constituents from the fruits of C.
View Article and Find Full Text PDFNormal pulmonary artery pressure and pulmonary hypertension assessment of newborns is rarely reported. The aim of the study is to explore dynamic changes of pulmonary arterial pressure and ductus arteriosus in human newborns from birth to 72 h of age with echocardiography.A total of 76 cases of normal newborns were prospectively detected by echocardiography after birth of 2 h, 6 h, 12 h, 24 h, 48 h, and 72 h, respectively.
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