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Background The structure of chloroplast genomes (cpDNAs) in Fabaceae ( Fab. ) has undergone significant evolutionary modifications. Within the Papilionoideae (Pap.) , the emergence of the Inverted Repeat-Lacking Clade (IRLC) represents a major genomic alteration. However, the molecular evolution and phylogenetic relationships within Pap. remain poorly resolved due to limited molecular data and incomplete research, highlighting the need for systematic investigation. Purpose This study presents an in-depth analysis of the cpDNAs within the Pap. , with the aim of unraveling the molecular evolution and phylogenetic interconnections among its species. Methods Complete cpDNAs of 18 Pap. species were sequenced using the Illumina Novaseq 6000 platform, followed by assembly and annotation. Comparative genomic analyses were conducted to elucidate structural variations and phylogenetic relationships. Results The research has uncovered significant differences in the structure and characteristics of the cpDNAs within the Pap. . The lengths of the cpDNAs of 18 species range from 121,190 bp to 158,539 bp, and they contain between 107 and 112 unique genes. Five species, namely Desmodium elegans and Indigofera bracteata, exhibit a typical quadripartite structure, while thirteen species from genera such as Astragalus ( Ast. ) , Hedysarum ( Hed. ) , and Caragana ( Car. ) are grouped within the Inverted Repeat-Lacking Clade (IRLC). Genetic characteristic analysis revealed a plentiful presence of SSR loci, with single-nucleotide repeats and dinucleotide (A/T) repeats being the most predominant. Notably, the cpDNAs of five species including D. elegans have experienced significant rearrangements. For example, an inversion of approximately 23 kilobase (kb) pairs was observed in Pueraria peduncularis and Sophora moorcroftiana. These species exhibit pronounced differences in their non-coding regions. Comparative genomic variations at cpDNA sites were identified. Moreover, by using D. elegans a s a reference, six genes ( ycf4, clpP, ycf1, trnI-GAU, accD, rpl32 ) displayed high nucleotide polymorphism (Pi > 0.1), and the Ka/Ks ratio for all protein-coding genes was determined to be less than 1. The topological structure of the constructed phylogenetic tree of 85 species was basically consistent with that of Pap. . Seven main clades were formed and relatively high bootstrap values were exhibited, further clarifying the evolutionary relationships among them. Conclusion This study provides novel insights into the molecular evolution and phylogeny of Pap. , offering a foundational resource for future taxonomic and evolutionary research.

As one of the main active ingredients from Radix Astragali (RA), orally dosed astragaloside IV (AST) is easily transformed to sapogenin-cycloastragenol (CAG) by deglycosylation in the gastrointestinal tract. Because the potential adverse effects of AST and CAG remain unclear, the present study in this article was carried out to investigate the inhibition effects of AST and CAG on UDP-glucuronosyltransferases (UGTs) to explore potential clinical toxicity. An in vitro UGTs incubation mixture was employed to study the inhibition of AST and CAG towards UGT isoforms. Concentrations of 100 μM for each compound were used to initially screen the inhibitory efficiency. Deglycosylation of AST to CAG could strongly increase the inhibitory effects towards almost all of the tested UGT isoforms, with an IC50 of 0.84 μM and 11.28 μM for UGT1A8 and UGT2B7, respectively. Ulteriorly, the inhibition type and kinetics of CAG towards UGT1A8 and UGT2B7 were evaluated depending on the initial screening results. Data fitting using Dixon and Lineweaver–Burk plots demonstrated that CAG competitively inhibited UGT1A8 and noncompetitively inhibited UGT2B7. From the second plot drawn with the slopes from the Lineweaver–Burk plot versus the concentrations of CAG, the inhibition constant (Ki) was calculated to be 0.034 μM and 20.98 μM for the inhibition of UGT1A8 and UGT2B7, respectively. Based on the [I]/Ki standard ([I]/Ki < 0.1, low possibility; 1 > [I]/Ki > 0.1, medium possibility; [I]/Ki > 1, high possibility), it was successfully predicted here that an in vivo herb–drug interaction between AST/CAG and drugs mainly undergoing UGT1A8- or UGT2B7-catalyzed metabolism might occur when the plasma concentration of CAG is above 0.034 μM and 20.98 μM, respectively.

Anodal-transcranial pulsed current stimulation (a-tPCS) has been used in human studies to modulate cortical excitability or improve behavioral performance in recent years. Multiple studies show crucial roles of astrocytes in cortical plasticity. The calcium activity in astrocytes could regulate synaptic transmission and synaptic plasticity. Whether the astrocytic activity is involved in a-tPCS-induced cortical plasticity is presently unknown. The purpose of this study is to investigate the calcium responses in neurons and astrocytes evoked by a-tPCS with different current intensities, and thereby provides some indication of the mechanisms underlying a-tPCS-induced cortical plasticity. Two-photon calcium imaging was used to record the calcium responses of neurons and astrocytes in mouse somatosensory cortex. Local field potential (LFP) evoked by sensory stimulation was used to assess the effects of a-tPCS on plasticity. We found that long-duration a-tPCS with high-intensity current could evoke large-amplitude calcium responses in both neurons and astrocytes, whereas long-duration a-tPCS with low-intensity current evoked large-amplitude calcium responses only in astrocytes. The astrocytic Ca2+ elevations are driven by noradrenergic-dependent activation of the alpha-1 adrenergic receptors (A1ARs), while the intense Ca2+ responses of neurons are driven by action potentials. LFP recordings demonstrated that low-intensity a-tPCS led to enhancement of cortical excitability while high-intensity a-tPCS resulted in diminution of cortical excitability. The results provide some evidence that the enhancement of a-tPCS-induced cortical excitability might be partly associated with calcium elevation in astrocytes, whereas the diminution of a-tPCS-induced cortical excitability might be caused by excessive calcium activity in neurons. These findings indicate that the appropriate current intensity should be used in the application of a-tPCS.

The complete chloroplast genome of Mitrasacme pygmaea was sequenced and assembled for the first time. The chloroplast genome is 152,611 bp in length, containing a large single-copy (LSC) region of 83,881 bp and a small single-copy region (SSC) of 18,110 bp, separated by a pair of inverted repeats (IRs) of 25,310 bp. The genome contains 113 unique genes, including 79 protein-coding genes, 30 tRNA genes, and 4 rRNA genes. Among them, 15 genes have one intron each and 3 genes contain two introns. The overall GC content is 37.9%, while the corresponding values of LSC, SSC, and IR regions are 36.0%, 31.7%, and 43.4%, respectively. Phylogenetic analysis showed that M. pygmaea is sister to Gentiana tibetica and provided new insight into the evolution of Loganiaceae.

The complete chloroplast (cp) genome of Mitreola yangchunensis was sequenced and assembled for the first time. The genome is 154,665 bp in length, containing a large single-copy (LSC) region of 85,351 bp, a small single-copy region (SSC) of 18,218 bp and a pair of inverted repeats (IRs) of 25,548 bp. It contains 113 unique genes, including 79 protein-coding genes, 30 tRNA genes, and 4 rRNA genes. The overall GC content is 37.9%, while the corresponding values of LSC, SSC, and IR regions are 35.9, 32.0, and 43.4%, respectively. Phylogenetic analyses using complete cp genomes showed that M. yangchunensis is most closely related to Mitrasacme pygmaea in Loganiaceae, and Gelsemiaceae and Loganiaceae form a single cluster with high support value.

The complete chloroplast genome of Stephania tetrandra was sequenced and assembled for the first time. The chloroplast genome is 159,974 bp in length, containing a large single-copy (LSC) region of 90,539 bp and a small single-copy region (SSC) of 20,735 bp, separated by a pair of inverted repeats (IRs) of 24,350 bp. The genome contains 113 unique genes, including 79 protein-coding genes (PCGs), 30 tRNA genes, and four rRNA genes. Among them, 15 genes have one intron each and three genes contain two introns. The overall GC content is 37.8%, while the corresponding values of LSC, SSC, and IR regions are 35.8, 32.4, and 43.7%, respectively. Phylogenetic analysis showed that S. tetrandra is more closely related to the clade of two species within Stephania, providing new insight into the evolution of Menispermaceae.

The complete chloroplast genome of Turpinia arguta was sequenced and assembled for the first time. The chloroplast genome was 160,139 bp in length, containing a large single-copy region (LSC) of 89,625 bp and a small single-copy region (SSC) of 18,262 bp, separated by a pair of inverted repeats (IRs) of 26,126 bp. The genome contained 113 unique genes, including 79 protein-coding genes, 30 tRNA genes, and four rRNA genes. Among them, 15 genes had one intron each and 3 genes containing two introns. The overall GC content was 37.4%, while the corresponding values of LSC, SSC, and IR regions were 35.4%, 31.8%, and 42.8%, respectively. Phylogenetic analysis showed that T. arguta is more closely related to Staphylea trifolia and provided new insight into the evolution of Staphyleaceae.

Rosaceae represents a vast and complex group of species, with its classification being intricate and contentious. The taxonomic placement of many species within this family has been a subject of ongoing debate. The study utilized the Illumina platform to sequence 19 plant species from 10 genera in the Rosaceae. The cp genomes, varying in size from 153,366 to 159,895 bp, followed the typical quadripartite organization consisting of a large single-copy (LSC) region (84,545 to 87,883 bp), a small single-copy (SSC) region (18,174 to 19,259 bp), and a pair of inverted repeat (IR) regions (25,310 to 26,396 bp). These genomes contained 132–138 annotated genes, including 87 to 93 protein-coding genes (PCGs), 37 tRNA genes, and 8 rRNA genes using MISA software, 52 to 121 simple sequence repeat (SSR) loci were identified. D. arbuscular contained the least of SSRs and did not have hexanotides, A. lineata contained the richest SSRs. Long terminal repeats (LTRs) were primarily composed of palindromic and forward repeat sequences, meanwhile, The richest LTRs were found in Argentina lineata. Except for Argentina lineata, Fragariastrum eriocarpum, and Prunus trichostoma, which varied in gene type and position on both sides of the boundary, the remaining species were found to be mostly conserved according to IR boundary analysis. The examination of the Ka/Ks ratio revealed that only the infA gene had a value greater than 1, indicating that this gene was primarily subjected to positive selection during evolution. Additionally, 9 hotspots of variation were identified in the LSC and SSC regions. Phylogenetic analysis confirmed the scientific validity of the genus Prunus L. sensu lato (s.l.) within the Rosaceae family. The separation of the three genera Argentina Hill, Fragariastrum Heist. ex Fabr. and Dasiphora Raf. from Potentilla L. may be a more scientific classification. These results offer fresh perspectives on the taxonomy of the Rosaceae.

To construct a management and prevention program for targeted therapy-induced hand-foot skin reactions (HFSR). A systematic review with meta-analysis. Based on a literature review and expert consensus meetings, a two-round expert panel discussion involving 10 experts was conducted to finalize the HFSR management and prevention program. Articles were systematically searched on the CNKI, Wanfang Database, VIP, PubMed, UpToDate, Embase, and Cochrane Library, and guideline publication websites, NGC, NCCN, NICE, SIGN and ESMO databases from inception up to June 2023. The final program comprised 8 primary indicators, 16 secondary indicators, 36 tertiary indicators, and 54 quaternary entries. These include baseline level and hand-foot skin assessment, skin erythema care, skin keratosis care, skin blister management, skin ulcer care, skin pain management, management of other accompanying symptoms, and hand-foot protection and prevention education. This management and prevention program, constructed based on evidence and expert discussion, is scientifically sound and clinically applicable, providing reliable guidance for the management and prevention of HFSR in clinical practice. Based on the best available evidence for managing and preventing hand-foot skin reactions induced by targeted therapies, we recommend that nursing leaders implement personalized symptom management plans tailored to the common symptoms of these reactions. Such an approach may help in the early detection of hand-foot skin reactions and alleviate patients' skin pain effectively.

Sparse general matrix multiplication (SpGEMM) is a fundamental building block in numerous scientific applications. One critical task of SpGEMM is to compute or predict the structure of the output matrix (i.e., the number of nonzero elements per output row) for efficient memory allocation and load balance, which impact the overall performance of SpGEMM. Existing work either precisely calculates the output structure or adopts upper-bound or sampling-based methods to predict the output structure. However, these methods either take much execution time or are not accurate enough. In this paper, we propose a novel sampling-based method with better accuracy and low costs compared to the existing sampling-based method. The proposed method first predicts the compression ratio of SpGEMM by leveraging the number of intermediate products (denoted as FLOP) and the number of nonzero elements (denoted as NNZ) of the same sampled result matrix. And then, the predicted output structure is obtained by dividing the FLOP per output row by the predicted compression ratio. We also propose a reference design of the existing sampling-based method with optimized computing overheads to demonstrate the better accuracy of the proposed method. We construct 625 test cases with various matrix dimensions and sparse structures to evaluate the prediction accuracy. Experimental results show that the absolute relative errors of the proposed method and the reference design are 1.56\\% and 8.12\\%, respectively, on average, and 25\\% and 156\\%, respectively, in the worst case.