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BACKGROUND: Unhealthy diets significantly contribute to stomach, colorectal and esophageal cancer burden globally. Western diets high in processed and red meats promote carcinogenesis in these gastrointestinal cancers. However, adolescent and young adult (AYA) patients' unique needs regarding these cancers have been neglected. METHODS: Data from the 2019 Global Burden of Disease study was used to quantify stomach, colorectal and esophageal cancer burden among AYAs from 1990 to 2040 across 204 countries. Correlations between the burden of these cancers and the Socio-demographic Index were examined. RESULTS: High SDI locations experienced the largest reduction in cancer DALY rate change from 1990 to 2019 (-22% [-12 to -33]), compared to a small increase in low-middle SDI regions. Middle SDI areas saw the largest reduction in DALY rate change from 1990 to 2019 (-62% [-32 to -75]), compared to a small decrease in low-middle SDI locations (-9% [-27 to 10]) in esophageal cancer. From 1990-2019, stomach cancer deaths and DALYs declined across all SDI regions, with the largest reductions in high SDI locations (-61% [-57 to -69]) and smallest in low-middle SDI areas (-25% [-13 to -34]). Colorectal cancer deaths and DALYs rose across all SDI regions except high SDI locations, which showed a slight decrease. CONCLUSION: This study demonstrates the evolving global burden of stomach, colorectal and esophageal cancers among AYAs. The highest burden was in high-middle and high SDI regions, underscoring the need to prioritize initiatives targeting these gastrointestinal malignancies in youth.
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BACKGROUND AND AIMS: There is an association between cancer and increased ribosome biogenesis. At present, the RPL7L1 (60S Ribosomal Protein L7-Like 1) were less reported by literature search. Study reports that RPL7L1 is associated with mouse embryonic and skeletal muscle. The study of RPL7L1 on tumors has not been reported. METHODS: Our team downloaded the pan-cancer dataset that is uniformly normalized from the UCSC database (N=19131). Our study examined the relationship between RPL7L1 expression level and clinical prognosis with methylation, anti-tumour immunity, functional states, MSI, TMB, DNSss, LOH and chemotherapeutic responses in 43 cancer types and subtypes. RESULTS AND CONCLUSIONS: RPL7L1 was overexpressed in nine tumor types. Gene mutation, tumor microenvironment and methylation modification of RPL7L1 plays a key role in patient prognosis. And the high expression of RPL7L1 was associated with TMB, MSI, LOH especially LIHC and HNSC. We experimentally verified that genes can promote the proliferation and migration of tumor cells. Our study suggested that RPL7L1 biomarker can be used for treating cancer, detecting it, and predicting its prognosis.
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Background: Liver cancer is a leading cause of cancer-related deaths worldwide. Lysosomal dysfunction is implicated in cancer progression; however, prognostic prediction models based on lysosome-related genes (LRGs) are lacking in liver cancer. This study aimed to establish an LRG-based model to improve prognosis prediction and explore potential therapeutic targets in liver cancer. Methods: Expression profiles of 61 LRGs were analyzed in The Cancer Genome Atlas liver cancer cohorts. There were 14 LRGs identified, and their association with clinical outcomes was evaluated. Unsupervised clustering, Cox regression, and functional assays were performed. Results: Patients were classified into high-risk and low-risk subgroups based on the 14 LRGs. The high-risk group had significantly worse overall survival. Aberrant immune infiltration and checkpoint expression were observed in the high-risk group. Furthermore, HPS4 was identified as an independent prognostic indicator. Knockdown of HPS4 suppressed liver cancer cell proliferation and induced apoptosis. Conclusion: This study developed an LRG-based prognostic model to improve risk stratification in liver cancer. The potential value of HPS4 as a therapeutic target and biomarker was demonstrated. Regulation of HPS4 may offer novel strategies for precision treatment in liver cancer patients.
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OBJECTIVE: Chronic nonspecific low back pain (CNLBP) is a serious medical and social problem resulting in functional decline and decreased work ability. Tuina, a form of manual therapy, has been sparsely used to treat patients with CNLBP. To systematically assess the efficacy and safety of Tuina for patients with CNLBP. METHODS: Multiple English and Chinese literature databases were searched until September 2022 for randomized controlled trials (RCTs) of Tuina in the treatment of CNLBP. The methodological quality was assessed using the Cochrane Collaboration's tool, and certainty of the evidence was determined with the online Grading of Recommendations, Assessment, Development and Evaluation tool. RESULTS: Fifteen RCTs with 1390 patients were included. Tuina demonstrated a significant effect on pain (SMD: -0.82; 95% CI -1.12 to -0.53; P < .001; I2 = 81%) and physical function (SMD: -0.91; 95% CI -1.55 to -0.27; P = .005; I2 = 90%) when compared to control. However, Tuina resulted in no significant improvement for quality of life (QoL) (SMD: 0.58; 95% CI -0.04 to 1.21; P = .07; I2 = 73%;) compared to control. The Grading of Recommendations, Assessment, Development and Evaluation evidence quality was determined to be low level for pain relief, physical function, and QoL measurements. Only six studies reported adverse events; none were serious. CONCLUSION: Tuina might be an effective and safe strategy for treating CNLBP in terms of pain and physical function, but not for QoL. The study results should be interpreted with caution for their low-level evidence. More multicenter, large-scale RCTs with a rigorous design are required to further confirm our findings.
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Dolor de la Región Lumbar , Masaje , Humanos , Bases de Datos Factuales , Dolor de la Región Lumbar/terapia , Estudios Multicéntricos como Asunto , Manejo del Dolor , Cooperación del PacienteRESUMEN
Purpose: To evaluate the efficacy of different non-pharmacologic therapies (NPTs) on relieving depressive symptoms and pain intensity in individuals living with chronic low back pain (LBP) and associated depression. Methods: A comprehensive search of seven English databases and two Chinese databases from inception to the search date will be undertaken. The reference lists of previously published relevant reviews and included trials will also be searched. Only peer-reviewed and published moderate-to-high quality randomized controlled trials (RCTs) for chronic LBP and associated depression treated with NPTs will be considered. Two independent reviewers will identify studies, extract data, assess risk of bias, and evaluate the strength of evidence using the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach. Meta-analysis will be conducted to estimate the treatment effect of various NPTs. Heterogeneity will be assessed using Cochrane's Q and the I-squared statistics. Subgroup and sensitivity analyses will be performed to assess the robustness of findings. A funnel plot will be developed to evaluate reporting bias, and Begg's and Egger's tests will be used to assess funnel plot symmetries. Results: This protocol outlines the planned scope and methodology for an upcoming systematic review and meta-analysis, which will provide up-to-date evidence on 1) which NPTs are associated with improvements in depressive symptoms and pain intensity and 2) whether the effects of NPTs on chronic LBP and associated depression vary according to clinical condition, participant, and treatment characteristics. Conclusion: Our meta-analyses of moderate-to-high quality RCTs will help to develop specific recommendations on prescribing NPTs in patients with chronic LBP and associated depression. Study Registration: This protocol is registered on the International Platform of Registered Systematic Review and Meta-analysis (INPLASY) protocols platform as record No. INPLASY202260055.
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TICRR is a regulatory factor of DNA replication with ToPBP1 interaction. At present, the underlying function and mechanisms of TICRR remain unclear in LIHC. Our objective was to assess the function and prognosis of TICRR in LIHC. We conducted a differential expression analysis, GO/KEGG, and GSEA enrichment analysis of TICRR in LIHC. We also carried out the gene frequency and SCNA of TICRR. We found that TICRR could serve as an independent prognostic marker in LIHC by univariate and multivariate analysis. In addition, we observed that TICRR was related to immune infiltration, and TICRR had positive correlation with PD1/PD-L1 and CTLA-4 in LIHC. The hsa-miR-126-3p/IPO9-AS1 may be the candidate ncRNAs to regulate the expression of TICRR. The high rate of SCNV of TICRR might have critical effect on the function of CTL cells in LIHC. We further demonstrate through a series of experiments that TICRR facilitated the proliferation and metastasis of liver cancer cells in vitro. Altogether, TICRR might be a potential biomarker and therapeutic target in LIHC.
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Background and aims: Inflammatory bowel disease (IBD) places a heavy medical burden on countries and families due to repeated and prolonged attacks, and the incidence and prevalence of IBD are increasing worldwide. Therefore, finding an effective treatment is a matter of great urgency. Glycerol monolaurate (GML), which has a twelve-carbon chain, is a compound naturally found in human breast milk. Some studies have shown that GML has antibacterial and anti-inflammatory effects. However, the specific mechanism of action remains unclear. Methods: Acute colitis was established in mice using 3% DSS, and glycerol monolaurate (500 mg·kg-1) was administered for two weeks. QPCR and western blotting were performed to examine the inflammatory status. Mice described were subjected to flow cytometry analysis for immune cell activation. Results: GML treated alleviated macroscopic symptoms such as shortened colons, increased spleen weight, and caused weight loss in mice with DSS-induced colitis. In addition, GML decreased the expression of pro-inflammatory factors (NF-α, IL-1ß and IL-1α) and increased the expression of anti-inflammatory factors (IL-10 and TGF-ß). GML inhibited the activation of the MAPK and NF-κB signalling pathways, improved tissue damage, and increased the expression of intestinal tight junction proteins. In addition, LPMCs extracted from intestinal tissue via flow cytometry showed that GML treatment led to a decrease of Th17 cells, Neutrophils and Macrophages. 16S rDNA sequencing showed that GML increased the abundance of commensal bacterium such as Akkermansia and Lactobacillus murinus. Conclusions: We showed that oral administration of GML ameliorated DSS-induced colitis by inhibiting infiltration of Th17 cells, Neutrophils, and Macrophages, protecting the intestinal mucosal barrier and altered the abundance of commensal bacterium. This study provides new insights into the biological function and therapeutic potential of GML in the treatment of IBD.
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BACKGROUND: Chronic non-specific low back pain (CNLBP) is a common complaint about medical care and carries a heavy social burden. The efficacy of Tuina (TN) or physiotherapy (PT) for CNLBP has been evaluated in previous systematic reviews. However, there is no high-quality evidence to support the efficacy of Tuina. Therefore, this study aims to conduct a large-scale, multicenter, high-quality clinical trial to provide evidence for Tuina to treat CNLBP. METHODS: This is a multicenter, assessor-, and analyst-blinded, randomized controlled trial with 3 parallel arms: TN, PT, and TN combined with PT (Tuina combined with physiotherapy) group. Six hundred twelve eligible CNLBP patients will be randomly assigned to the groups in a 1:1:1 ratio in 3 centers. The TN intervention includes 9-step routine techniques, while the PT intervention includes a physiotherapy treatment plan based on a patient's symptoms. The interventions for both groups will last for 30âminutes and will be carried out for 6 sessions in 8âweeks. The primary outcome will be the visual analog scale pain score. And the secondary outcomes will include the Oswestry Disability Index, spinal range of motion, 36-item short-form health survey. Safety evaluation will be recorded during the whole study. All data in this randomized controlled trial will be analyzed by SAS 9.4. DISCUSSION: The results of this trial will provide evidence to evaluate the efficacy of Tuina's value as a treatment for CNLBP. TRIAL REGISTRATION: Chinese Clinical Trial Registry (ChiCTR2000040288, November 27, 2020).
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Dolor de la Región Lumbar , Humanos , Dolor de la Región Lumbar/diagnóstico , Dolor de la Región Lumbar/terapia , Estudios Multicéntricos como Asunto , Dimensión del Dolor , Ensayos Clínicos Controlados Aleatorios como Asunto , Rango del Movimiento Articular , Resultado del TratamientoRESUMEN
Cell entry is one of the common prerequisites for nanomaterial applications. Despite extensive studies on a homogeneous group of nanoparticles (NPs), fewer studies have been performed when two or more types of NPs were coadministrated. We previously described a synergistic cell entry process for two heterogeneous groups of NPs, where NPs functionalized with TAT (transactivator of transcription) peptide (T-NPs) stimulate the cellular uptake of coadministered unfunctionalized NPs (bystander NPs, B-NPs). Here, we show that the synergistic cell entry of NPs is driven by free energy decline and depends on B-NP sizes. Simulations showed that when separately placed initially, two NPs first move toward each other instead of initiating cell entry individually. Only T-NP invokes an inward bending of membrane mimicking endocytosis, which attracts the nearby NPs into the same "vesicle". A two-phase free energy decline of the entire system occurred as two NPs get closer until contact, which is likely the thermodynamic driver for synergistic NP coentry. Experimentally, we found that T-NPs increase the apparent affinity of B-NPs to plasma membrane, suggesting that T-NPs help B-NPs "trapped" in the endocytic vesicles. Next, we varied the sizes of B-NPs and found that bystander activity peaks around 50 nm. Simulations also showed that the size of B-NPs influences the free energy decline, and thus the tendency and dynamics of NP coentry. These efforts provide a system to further understand the synergistic cell entry among individual NPs or multiple NP types on a biophysical basis and shed light on the future design of nanostructures for intracellular delivery.
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Nanopartículas , Animales , Nanopartículas/química , Endocitosis , Membrana Celular/química , Termodinámica , Transporte Biológico , MamíferosRESUMEN
Efficient cellular uptake of nanoparticles (NPs) is necessary for the development of nanomedicine in biomedical applications. Recently, the coadministration of functionalized NPs (FNPs) was shown to stimulate the cellular uptake of nonfunctionalized NPs (termed bystander NPs, BNPs), which presents a new strategy to achieve synergistic delivery. However, a mechanistic understanding of the underlying mechanism is still lacking. In this work, the bystander uptake effect was investigated at the cell membrane level by combining the coarse-grained molecular dynamics, potential of mean force calculation and theoretical energy analysis methods. The membrane internalization efficiency of BNPs was enhanced by co-administered FNPs, and such activity depends on the affinity of both NPs to the membrane and the resultant membrane deformation. The membrane-curvature-mediated attraction and aggregation of NPs facilitated the membrane uptake of BNPs. Furthermore, quantitative suggestions were given to modulate the BNP internalization through controlling the FNP properties such as size, concentration and surface-ligand density. Our results provide insight into the molecular mechanism of the bystander uptake effect, and offer a practical guide to regulate the cellular internalization of NPs for targeted and efficient delivery to cells.
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Endocitosis , Nanopartículas , Membrana Celular , Ligandos , Simulación de Dinámica MolecularRESUMEN
Nanoparticles (NPs) promise a huge potential for clinical diagnostic and therapeutic applications. However, nano-bio (e.g., the NP-cell membrane) interactions and underlying mechanisms are still largely elusive. In this study, two types of congeneric peptides, namely PGLa and magainin 2 (MAG2), with similar membrane activities were employed as model ligands for NP decoration, and the diffusion behaviours (including both translation and rotation) of the ligand-decorated NPs on a lipid bilayer membrane were studied via molecular dynamics simulations. It was found that, although both PGLa- and MAG2-coated NPs showed alternatively "hopping" and "jiggling" diffusions, the PGLa-coated ones had an enhanced circling at the hopping stage, while a much confined circling at the jiggling stage. In contrast, the MAG2-coated NPs demonstrated constant circling tendencies throughout the diffusion process. Such differences in the coupling between translational and rotational dynamics of these two types of NPs are ascribed to the different ligand-lipid interactions of PGLa and MAG2, in which the PGLa ligands prefer to vertically insert into the membrane, while MAG2 tends to lie flat on the membrane surface. Our results are helpful for the understanding the underlying associations between the NP motions and their interfacial membrane interactions, and shed light on the possibility of regulating NP behaviours on a cellular surface for better biomedical uses.
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Péptidos Catiónicos Antimicrobianos/metabolismo , Proteínas Inmovilizadas/metabolismo , Membrana Dobles de Lípidos/metabolismo , Magaininas/metabolismo , Nanopartículas/metabolismo , Péptidos Catiónicos Antimicrobianos/química , Proteínas Inmovilizadas/química , Ligandos , Membrana Dobles de Lípidos/química , Magaininas/química , Simulación de Dinámica Molecular , Nanopartículas/químicaRESUMEN
BACKGROUND: Chronic nonspecific low back pain (CNLBP) is one of the most common complex pain conditions, and it is strongly associated with high rates of disability. Even though several studies on Tui na for CNLBP have been reported, to our knowledge there has been no systematic review of the currently available publications. OBJECTIVE: This study aims to develop a protocol for a systematic review and meta-analysis that will evaluate the effectiveness and safety of Tui na therapy for patients with CNLBP. METHODS: An electronic literature search of PubMed, Embase, MEDLINE, Cochrane Library, Springer, Scopus, World Health Organization International Clinical Trials Registry Platform, Physiotherapy Evidence Database (PEDro), Clarivate Analytics, and Chinese biomedical databases (the China National Knowledge Infrastructure, Wan-fang database, Chinese Scientific Journals Database, and Chinese Biomedical Literature Databases) will be conducted. Studies will be screened by two reviewers independently based on titles and abstracts, followed by a full-text reading with eligibility criteria. Randomized controlled trials involving Tui na for patients with CNLBP will be reviewed. The primary outcomes of the study are improvement of pain, analgesic medication reduction, improvement of functional disability, and degree of satisfaction with the intervention. A secondary outcome is any adverse event of Tui na intervention. Methodological quality and risk of bias will be assessed with the Cochrane Collaboration Risk of Bias Tool. If studies are sufficient, a meta-analysis of the effectiveness will be performed. If possible, we will evaluate publication bias using funnel plots. If substantial heterogeneity between studies is present, and there are sufficient studies, subgroup analyses will be conducted to explain the study findings. RESULTS: The review database searches will be initiated in December 2020, with findings expected by January 2021. CONCLUSIONS: This protocol will establish a framework of a high-quality literature synthesis on the impact of Tui na treatment in patients with CNLBP. The proposed review will determine whether Tui na is effective and safe for CNLBP patients. TRIAL REGISTRATION: PROSPERO CRD42020166731; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=166731. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): PRR1-10.2196/20615.
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Many fundamental biological processes occur on cell membranes, and a typical example is the membrane permeabilization by peptides for an antimicrobial purpose. Previous studies of the underlying mechanism mostly focus on structural changes of membranes and peptides during their interactions. Herein, from a new perspective of single-molecule dynamics, the real-time three-dimensional motions of individual phospholipid and peptide molecules were monitored, and specifically, their correlation with the membrane poration function of melittin, a most representative natural antimicrobial peptide, was studied. We found that the adsorption and accumulation of melittin on the membrane surface significantly sped up the lateral diffusion of lipids surrounding the peptides, which in turn facilitated the peptide insertion at such heterogeneous regions. A unique "U"-bending pathway of melittin during membrane insertion and the ultimate formation of toroidal pores with dynamical translocations of peptides and lipids with several metastable states between the two leaflets of bilayer were observed.
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Membrana Dobles de Lípidos/metabolismo , Meliteno/metabolismo , Fosfatidilcolinas/metabolismo , Liposomas Unilamelares/metabolismo , Adsorción , Difusión , Membrana Dobles de Lípidos/química , Meliteno/química , Simulación de Dinámica Molecular , Fosfatidilcolinas/química , Imagen Individual de Molécula , Liposomas Unilamelares/químicaRESUMEN
OBJECTIVE: To observe the therapeutic effect of acupuncture on cancer-related fatigue (CRF) and to explore its possible mechanism. METHODS: A total of 80 patients with CRF were randomized into an observation group and a control group, and finally 67 patients completed the trial (36 patients in the observation group, 31 patients in the control group). Patients in the control group were treated with conventional chemoradiotherapy and symptomatic treatment, while no particular anti-fatigue intervention was adopted. On the basis of treatment in the control group, acupuncture was applied at Baihui (GV 20), Guanyuan (CV 4), Qihai (CV 6), Fengchi (GB 20), Zusanli (ST 36), Sanyinjiao (SP 6) in the observation group, once a day, 5 times as one course, with 2 days interval between each course, totally 4 courses were required. Before and after treatment, scores of functional assessment of cancer therapy-fatigue (FACT-F) in Chinese and McGill quality of life questionnaire (MQOL), serum levels of C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor-α(TNF-α) and soluble TNF receptor-1 (sTNF-R1) were observed in the two groups. RESULTS: â Compared before treatment, the FACT-F score was decreased after treatment in the observation group (P<0.05), while there was no significant difference in the control group (P<0.05). The change of the FACT-F score in the observation group was larger than that in the control group (P<0.05). â¡In the observation group, scores of physiological and psychological dimension were decreased (P<0.05), score of social support dimension was increased after the treatment (P<0.05). The score changes of physiological, psychological and social support dimension in the observation group were larger than those in the control group (all P<0.05). â¢After treatment, the serum levels of IL-6, TNF-α and sTNF-R1 were decreased in the observation group (P<0.05), while the serum levels of CPR and IL-6 were increased in the control group (P<0.05). The serum levels of CPR, IL-6 and TNF-α in the observation were lower than those in the control group (P<0.05). CONCLUSION: â Acupuncture can improve the related symptoms of depression, weakness and headache in patients with CRF, strengthen their cognition of the support from society and family, and boost the confidence in curing the disease. â¡Acupuncture can effectively down-regulate serum levels of the relative inflammatory factors, which may be its possible mechanism on treating CRF.
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Terapia por Acupuntura , Fatiga/terapia , Neoplasias/terapia , Puntos de Acupuntura , Biomarcadores/sangre , Proteína C-Reactiva/análisis , Fatiga/etiología , Humanos , Interleucina-6/sangre , Neoplasias/complicaciones , Calidad de Vida , Receptores Tipo I de Factores de Necrosis Tumoral/sangre , Factor de Necrosis Tumoral alfa/sangreRESUMEN
OBJECTIVE: The aim of this study was to explore the effect of acupuncture stimulation at KI3 on brain glucose metabolism in spontaneously hypertensive rats (SHRs). METHODS: Brain glucose metabolism in SHRs after acupuncture stimulation at KI3 was detected using 18F-2-fluorodeoxy-D-glucose positron emission tomography (18F-FDG-PET). SHRs were randomly divided into three groups: no treatment (SHR group); acupuncture at KI3 (KI3 group); and sham acupuncture (Sham group). Wistar Kyoto (WKY) rats were used as a normal blood pressure (BP) control group. Rats were subjected to 10 min of acupuncture once a day for 7 days. BP and positron emission tomography-computed tomography (PET-CT) were measured after the first acupuncture session and after 7 days of treatment. RESULTS: The results showed that BP was lower in the KI3 group than in the SHR group, both 30-60 min after the first acupuncture session and 24-48 h after the 7-day treatment. Compared with the WKY group, the SHR group had lower glucose metabolism in the motor cortex, sensory cortex, basal ganglia, corpus callosum, caudate putamen, and visual cortex. Compared with the untreated/sham-treated SHR control groups, cerebral glucose metabolism was lower in the medulla oblongata, thalamus, dorsal thalamus, orbital cortex, and hypothalamus after acupuncture at KI3, while it was higher in the olfactory cortex and inferior phrenic muscle. CONCLUSION: Our results show that, in SHRs, needling at KI3 reduces high BP, most likely by altering the activation of cerebral regions.
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Terapia por Acupuntura , Encéfalo/metabolismo , Glucosa/metabolismo , Hipertensión/terapia , Puntos de Acupuntura , Animales , Presión Sanguínea , Encéfalo/diagnóstico por imagen , Humanos , Hipertensión/diagnóstico por imagen , Hipertensión/metabolismo , Hipertensión/fisiopatología , Masculino , Tomografía Computarizada por Tomografía de Emisión de Positrones , Ratas , Ratas Endogámicas SHR , Ratas Endogámicas WKYRESUMEN
Cell membrane-based sorting and trafficking of nanoscale particles (NPs) are fundamental processes in many cellular activities such as endocytosis, signaling and virus infection; however, the regulation mechanism of these behaviors is still poorly understood. In this work, partitioning of NPs into different lipid phases (i.e., liquid-ordered and liquid-disordered phases) on a ternary lipid bilayer, as well as the influence of NP perturbations on the phase separation of the bilayer, is investigated by using coarse-grained molecular dynamics simulations. Interestingly, it is revealed by our simulations that even with the same chemical affinity between the NPs and lipids in different phases, NPs are still able to preferentially locate at the liquid-disordered (Ld) phase domains. The preferential partitioning behavior of NPs is associated with the physical properties of both the membrane and NPs (e.g., the membrane stiffness and the NP size/quantity). Additionally, the preferential partitioning of NPs facilitates growth of the Ld domain and promotes coupling of this domain between the two leaflets. This work provides new insights into the complicated nano-bio interaction mechanism. Moreover, it suggests methods to regulate the mobility of NPs on cellular membranes to modulate important biological processes accordingly.
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Membrana Dobles de Lípidos/química , Simulación de Dinámica Molecular , Nanopartículas/química , Transporte Biológico , Fenómenos Biomecánicos , Membrana Celular/química , Cinética , Lípidos/química , Tamaño de la Partícula , Propiedades de Superficie , TermodinámicaRESUMEN
Our objective was to investigate the effect of acupuncture at LR3 on cerebral glucose metabolism in spontaneously hypertensive rats (SHRs). We used 18F-2-fluoro-deoxy-D-glucose positron emission tomography (18F-FDG-PET) to examine the effects of acupuncture at LR3 on cerebral glucose metabolism in SHRs. SHRs were randomly allocated to receive no treatment (SHR group), needling at LR3 (SHR + LR3 group), or sham needling (SHR + sham group). Rats received 10 min acupuncture once per day for 7 days and were compared to normotensive Wistar Kyoto (WKY) rats. Blood pressure (BP) measurement and PET were performed after the first needling and the 7-day treatment period. BP was lower in the SHR + LR3 group compared to the other SHR groups between 30 and 60 min after the first needling and at 24 and 48 h after the 7-day treatment period. Glucose metabolism in the motor, sensory, and visual cortices was decreased in SHR group compared to WKY group. Needling at LR3 was associated with decreased glucose metabolism in the dorsal thalamus, thalamus, and hypothalamus and with increased metabolism in the cerebellar anterior and posterior lobes, medulla oblongata, and sensory cortex compared to the SHR group. These findings suggest that LR3 acupuncture improves hypertension through a mechanism involving altered brain activation in SHRs.
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Professor LAI Xinsheng's experience of acupuncture combined with medication for epilepsy is summarized, which is explained from epilepsy's etiology and pathogenesis, diagnosis and treatment of acupuncture and medication, respectively. Besides, the theoretical foundation and use instruction of acupuncture technique "tong-yuan" for epilepsy are introduced. Professor LAI highly values the adherence to etiology and pathogenesis, pays attention to syndrome differentiation and searches for the primary disease cause. He proposes the wind, phlegm, stasis and deficiency are the pathogenesis of epilepsy, and points out acupuncture could be applied during attack stage and remittent stage, but electroacupuncture should be used with caution. Regulating spirit is the key for treating epilepsy. The combination of acupuncture and medication could regulate the governor vessel and guide qi to the origin, which have significant curative effect.