Rosai-dorfman disease (RDD) is a rare benign lymphoproliferative disorder, with central nervous system involvement being even rarer. Its clinical manifestations and imaging features easily mimic other intracranial tumors, leading to diagnostic pitfalls. This paper reports a case of a 65-year-old female initially misdiagnosed with meningioma, who was ultimately confirmed to have intracranial RDD through pathologic examination.
View Article and Find Full Text PDFGenome skimming has dramatically extended DNA barcoding from short DNA fragments to next generation barcodes in plants. However, conserved DNA barcoding markers, including complete plastid genome and nuclear ribosomal DNA (nrDNA) sequences, are inadequate for accurate species identification. Skmer, a recently proposed approach that estimates genetic distances among species based on unassembled genome skims, has been proposed to effectively improve species discrimination rate.
View Article and Find Full Text PDFObjectives: Roscoea is a Sino-Himalayan alpine genus in pantropical family Zingiberaeae. As traditional Tibetan medicinal plants, many species of this genus are threatened by digging, logging, land clearance, grazing and climate change. Roscoea debilis is an endemic species in the Hengduan Mountains with a narrow distribution range.
View Article and Find Full Text PDFThe objective is to characterize differentially expressed proteins (DEPs) in Guillain-Barré Syndrome (GBS) and Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) through high-throughput analysis. Sera from 11 healthy controls (HCs), 21 GBS and 19 CIDP patients were subjected to Olink Proteomics Analysis. In the comparison between CIDP and GBS groups, up-regulation of ITM2A and down-regulation of NTF4 were observed.
View Article and Find Full Text PDFSpinocerebellar ataxia is a phenotypically and genetically heterogeneous group of autosomal dominant-inherited degenerative disorders. The gene mutation spectrum includes dynamic expansions, point mutations, duplications, insertions, and deletions of varying lengths. Dynamic expansion is the most common form of mutation.
View Article and Find Full Text PDFNormally, only noncentrosymmetric structure of the materials can potentially be piezoelectric. Thus, it is limited in the field of piezoelectricity for the centrosymmetric structure of the material. In this work, the performance of piezoelectricity is successfully achieved from centrosymmetric SrFeO by modulating oxygen vacancies, which have a surface piezoelectric potential up to 93 mV by using Kelvin-probe force microscopy (KPFM).
View Article and Find Full Text PDFMol Phylogenet Evol
November 2023
Plastid genome and nuclear ribosomal DNA (nrDNA) arrays, proposed recently as "super-barcodes," might provide additional discriminatory power and overcome the limitations of traditional barcoding loci, yet super-barcodes need to be tested for their effectiveness in more plant groups. Morphological homoplasy among Schima species makes the genus a model for testing the efficacy of super-barcodes. In this study, we generated multiple data sets comprising standard DNA barcodes (matK, rbcL, trnH-psbA, nrITS) and super-barcodes (plastid genome, nrDNA arrays) across 58 individuals from 12 out of 13 species of Schima from China.
View Article and Find Full Text PDFFront Plant Sci
January 2022
Chloroplasts are critical to plant survival and adaptive evolution. The comparison of chloroplast genomes could provide insight into the adaptive evolution of closely related species. To identify potential adaptive evolution in the chloroplast genomes of four montane Zingiberaceae taxa (, , , and ) that inhabit distinct habitats in the mountains of Yunnan, China, the nucleotide sequences of 13 complete chloroplast genomes, including five newly sequenced species, were characterized and compared.
View Article and Find Full Text PDFBackground And Aims: Theaceae, with three tribes, nine genera and more than 200 species, are of great economic and ecological importance. Recent phylogenetic analyses based on plastomic data resolved the relationships among the three tribes and the intergeneric relationships within two of those tribes. However, generic-level relationships within the largest tribe, Theeae, were not fully resolved.
View Article and Find Full Text PDFPurpose: There is no research evidence demonstrate which is the better partner strategy, endocrine therapy or chemotherapy, to combine with anti-HER2 therapy as the first-line management of hormone receptor (HR)-positive (HR+) and HER2-positive (HER2+) metastatic breast cancer (MBC). We wished to ascertain if trastuzumab plus endocrine therapy is noninferior to trastuzumab plus chemotherapy.
Patients And Methods: We conducted an open-label, noninferiority, phase III, randomized, controlled trial (NCT01950182) at nine hospitals in China.
The Himalayas with dramatic elevation gradient is one of the global biodiversity hotspots. Although origin of biodiversity of the Himalayas is of great concern, the speciation process within the Himalayas is poorly known. Roscoea within the Himalayas serve as a good model system to test the speciation process along an elevation gradient.
View Article and Find Full Text PDFMitochondrial DNA B Resour
November 2020
is a member of the genus , which distributes in Central and South America. Genetic information of would provide guidance for the phylogenetic position of this species. Here, we reported and characterized its complete chloroplast (cp) genome using Illumina pair-end sequencing data.
View Article and Find Full Text PDFWater-mediated fertilization is ubiquitous in early land plants. This ancestral mode of fertilization has, however, generally been considered to have been lost during the evolutionary history of terrestrial flowering plants. We investigated reproductive mechanisms in the subtropical ginger Cautleya gracilis (Zingiberaceae), which has two pollen conditions - granular and filiform masses - depending on external conditions.
View Article and Find Full Text PDFLocal adaptation is a critical evolutionary process that allows plants to grow better in their local compared to non-native habitat and results in species-wide geographic patterns of adaptive genetic variation. For forest tree species with a long generation time, this spatial genetic heterogeneity can shape the ability of trees to respond to rapid climate change. Here, we identify genomic variation that may confer local environmental adaptations and then predict the extent of adaptive mismatch under future climate as a tool for forest restoration or management of the widely distributed high-elevation oak species in Mexico.
View Article and Find Full Text PDFThe aim of the present study was to analyze the possible association between microRNA‑494 (miR‑494) and cell proliferation in glioma cancer. Firstly, the expression of miR‑494 was revealed to be upregulated in patients with glioma, compared with the normal group. Next, anti‑miR‑494 mimics were used to decrease the expression of miR‑494 in glioma cancer cells, which subsequently induced apoptosis, and inhibited cell growth and migration.
View Article and Find Full Text PDFPurpose: In this work, we propose an in situ precise electrospinning of medical glue fibers onto dural wound for improving sealing capability, avoiding tissue adhesion, and saving time in dural repair.
Methods: N-octyl-2-cyanoacrylate, a commercial tissue adhesive (medical glue), can be electrospun into ultrathin fibrous film with precise and homogeneous deposition by a gas-assisted electrospinning device.
Results: The self-assembled N-octyl-2-cyanoacrylate film shows high compactness and flexibility owing to its fibrous structure.
Zhongguo Shi Yan Xue Ye Xue Za Zhi
December 2015
Immune thrombocytopenia (ITP) is a common acquired autoimmune hematological disorders. Platelet autoantibodies lead to the decrease of platelet production and (or) increase of its destruction. The latest researches showed that the abnormal tryptophan metabolism mediated by indoleamine-2, 3-dioxygenase(IDO) is related with the pathogenesis of ITP.
View Article and Find Full Text PDFMicroRNAs (miRNAs), a class of small noncoding RNAs that regulate target gene expression, play an important role in cancer initiation, progression, and metastasis. However, the role of many miRNAs in cervical cancer is not fully understood. In this study, we found that miR-212 and miR-132 from the same gene cluster are downregulated in human cervical cancer tissues when compared with adjacent noncancerous tissues.
View Article and Find Full Text PDFMicroRNAs (miRNAs) are small, non-coding RNAs that participate in the regulation of gene expression. Although many studies have demonstrated the involvement of miR-17-5p in different cancers, little is known to its function in ovarian cancer. In this study, we demonstrated that overexpression of miR-17-5p was able to enhance cell proliferation by promoting G1/S transition of the cell cycle and suppressing apoptosis in ES-2 and OVCAR3 cell lines, whereas inhibition of miR-17-5p yielded the reverse phenotype.
View Article and Find Full Text PDFBackground: The objective of this article was to investigate the operation outcome, complications, and the patient's quality of life after surgical therapy for central gyrus region meningioma with epilepsy as the primary symptom.
Methods: All patients get at least 6 months of follow-up (range, 6-34 mo) after surgery. They underwent preoperative magnetic resonance imaging and video electroencephalography, and their clinical manifestations, imaging characteristics, microsurgical methods, and prognosis were retrospectively analyzed.