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1.
Front Neurosci ; 18: 1397991, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39290715

RESUMO

Background: The aldehyde dehydrogenase 2 (ALDH2) rs671 (A) allele has been implicated in neurodegeneration, potentially through oxidative and inflammatory pathways. The study aims to investigate the effects of the ALDH2 rs671 (A) allele and high sensitivity C-reactive protein (hs-CRP) on the clinical phenotypes of amyotrophic lateral sclerosis (ALS) in male and female patients. Methods: Clinical data and ALDH2 rs671 genotype of 143 ALS patients, including 85 males and 58 females, were collected from January 2018 to December 2022. All patients underwent assessment using the Chinese version of the Edinburgh Cognitive and Behavioral ALS Screen (ECAS). Complete blood count and metabolic profiles were measured. Clinical and laboratory parameters were compared between carriers and non-carriers of the rs671 (A) allele in males and females, respectively. The significant parameters and rs671 (A) Allele were included in multivariate linear regression models to identify potential contributors to motor and cognitive impairment. Mediation analysis was employed to evaluate any mediation effects. Results: Male patients carrying rs671 (A) allele exhibited higher levels of hs-CRP than non-carriers (1.70 mg/L vs. 0.50 mg/L, p = 0.006). The rs671 (A) allele was identified as an independent risk factor for faster disease progression only in male patients (ß = 0.274, 95% CI = 0.048-0.499, p = 0.018). The effect of the rs671 (A) allele on the executive function in male patients was fully mediated by hs-CRP (Indirect effect = -1.790, 95% CI = -4.555--0.225). No effects of the rs671 (A) allele or hs-CRP were observed in female ALS patients. The effects of the ALDH2 rs671 (A) allele and the mediating role of hs-CRP in male patients remained significant in the sensitivity analyses. Conclusion: The ALDH2 rs671 (A) allele contributed to faster disease progression and hs-CRP mediated cognitive impairment in male ALS patients.

2.
J Am Chem Soc ; 146(37): 25832-25840, 2024 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-39231362

RESUMO

The connectivity (valency) of building blocks for constructing 3D covalent organic frameworks (COFs) has long been limited to 4, 6, 8, and 12. Developing a higher connectivity remains a great challenge in the field of COF structural design. Herein, this work reports a hierarchical expansion strategy for making 16-connected building blocks to construct 3D COFs with sqc topology. The [16 + 2] construction achieved by condensation between a 16-connected carbazolyl dicyanobenzene-based building block (CzTPN) and linear diamino linkers (BD or Bpy) affords two 3D COFs (named CzBD COF and CzBpy COF). Furthermore, attributed to the well-organized donor-acceptor (D-A) heterojunction, the Ni chelated CzBpy COF (Ni@CzBpy COF) exhibits excellent performance for photoredox/Ni dual catalytic C(sp3)-C(sp2) cross-coupling of alkyltrifluoroborates with aryl halides, achieving a maximum 98% conversion and 94% yield for various substrates. This work developed the first case of high-connectivity COFs bearing 16-connected units, which is the highest connectivity reported until now, and achieved efficient photocatalysis applications, thus greatly enriching the possibilities of COFs.

3.
BMJ Open ; 14(9): e080803, 2024 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-39231554

RESUMO

OBJECTIVES: To investigate the relationship among patients' apathy, cognitive impairment, depression, anxiety, and caregiver burden in amyotrophic lateral sclerosis (ALS). DESIGN: A cross-sectional study design was used. SETTING: The study was conducted at a tertiary hospital in Wuhan, Hubei, China. PARTICIPANTS: A total of 109 patients with ALS and their caregivers were included. OUTCOME MEASURES: Patients with ALS were screened using the Edinburgh Cognitive and Behavioural Screen, Beck Depression Inventory-II, Generalised Anxiety Disorder-7 and Apathy Scale to assess their cognition, depression, anxiety and apathy, respectively. The primary caregivers completed the Zarit Burden Interview. The association between apathy, cognitive impairment, depression, anxiety and caregiver burden was analysed using logistic regression. Mediation models were employed to investigate the mediating effect of patients' apathy on the relationship between depression/anxiety and caregiver burden. RESULTS: Patients in the high caregiver burden group exhibited significantly higher levels of depression, anxiety and apathy compared with those in the low caregiver burden group (p<0.05). There was a positive association observed between caregiver burden and disease course (rs=0.198, p<0.05), depression (rs=0.189, p<0.05), anxiety (rs=0.257, p<0.05) and apathy (rs=0.388, p<0.05). There was a negative association between caregiver burden and the Revised ALS Functional Rating Scale (rs=-0.275, p<0.05). Apathy was an independent risk factor for higher caregiver burden (OR 1.121, 95% CI 1.041 to 1.206, p<0.05). Apathy fully mediated the relationship between depression and caregiver burden (ß=0.35, 95% CI 0.16 to 0.54, p<0.05) while partially mediating the relationship between anxiety and caregiver burden (ß=0.34, 95% CI 0.16 to 0.52, p<0.05). CONCLUSIONS: Apathy, depression and anxiety exerted a detrimental impact on caregiver burden in individuals with ALS. Apathy played a mediating role in the relationship between depression and caregiver burden and between anxiety and caregiver burden. These findings underscore the importance of identifying apathy and developing interventions for its management within the context of ALS.


Assuntos
Esclerose Lateral Amiotrófica , Ansiedade , Apatia , Sobrecarga do Cuidador , Depressão , Humanos , Esclerose Lateral Amiotrófica/psicologia , Masculino , Feminino , Estudos Transversais , Pessoa de Meia-Idade , Ansiedade/psicologia , Ansiedade/etiologia , Depressão/psicologia , Depressão/etiologia , China/epidemiologia , Sobrecarga do Cuidador/psicologia , Idoso , Cuidadores/psicologia , Adulto , Disfunção Cognitiva/etiologia , Disfunção Cognitiva/psicologia , Escalas de Graduação Psiquiátrica , Modelos Logísticos , Efeitos Psicossociais da Doença
4.
PLoS One ; 19(9): e0309225, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39269938

RESUMO

The performance of three widely used thermal radiation models, the P-1 model, the surface-to-surface (S2S) model and the Discrete-Ordinates (DO) model, were evaluated for simulation temperature in Chinses solar greenhouse. The thermal radiation models were evaluated by comparing the numerical results with experimental data at representative points in the CSG. For indoor rear wall, the indoor soil and indoor air, the models showed good agreement between the experimental data and the simulated results correspond to P1, S2S and DO respectively. This work provides information for simulate greenhouse temperature and use specific radiation models for the most suitable thermal environment for crop growth.


Assuntos
Modelos Teóricos , Temperatura , China , Luz Solar , Energia Solar , População do Leste Asiático
5.
J Agric Food Chem ; 72(36): 19786-19799, 2024 Sep 11.
Artigo em Inglês | MEDLINE | ID: mdl-39187786

RESUMO

Bioactive peptides, derived from short protein fragments, are recognized for their neuroprotective properties and potential therapeutic applications in treating central nervous system (CNS) diseases. However, a significant challenge for these peptides is their ability to penetrate the blood-brain barrier (BBB). EVSGPGYSPN (EV-10) peptide, a walnut-derived peptide, has demonstrated promising neuroprotective effects in vivo. This study aimed to investigate the transportability of EV-10 across the BBB, explore its capacity to penetrate this barrier, and elucidate the regulatory mechanisms underlying peptide-induced cellular internalization and transport pathways within the BBB. The results indicated that at a concentration of 100 µM and osmotic time of 4 h, the apparent permeability coefficient of EV-10 was Papp = 8.52166 ± 0.58 × 10-6 cm/s. The penetration efficiency of EV-10 was influenced by time, concentration, and temperature. Utilizing Western blot analysis, immunofluorescence, and flow cytometry, in conjunction with the caveolin (Cav)-specific inhibitor M-ß-CD, we confirmed that EV-10 undergoes transcellular transport through a Cav-dependent endocytosis pathway. Notably, the tight junction proteins ZO-1, occludin, and claudin-5 were not disrupted by EV-10. Throughout its transport, EV-10 was localized within the mitochondria, Golgi apparatus, endoplasmic reticulum, lysosomes, endosomes, and cell membranes. Moreover, Cav-1 overexpression facilitated the release of EV-10 from lysosomes. Evidence of EV-10 accumulation was observed in mouse brains using brain slice scans. This study is the first to demonstrate that Cav-1 can facilitate the targeted delivery of walnut-derived peptide to the brain, laying a foundation for the development of functional foods aimed at CNS disease intervention.


Assuntos
Barreira Hematoencefálica , Juglans , Peptídeos , Juglans/química , Juglans/metabolismo , Barreira Hematoencefálica/metabolismo , Animais , Camundongos , Peptídeos/química , Peptídeos/metabolismo , Peptídeos/farmacologia , Transporte Biológico , Caveolinas/metabolismo , Caveolinas/química , Humanos , Endocitose , Proteínas de Plantas/metabolismo , Proteínas de Plantas/química , Nozes/química , Nozes/metabolismo
6.
Sensors (Basel) ; 24(15)2024 Jul 25.
Artigo em Inglês | MEDLINE | ID: mdl-39123897

RESUMO

In this work, a two-parameter inversion problem is analyzed, related to surface crack widths for measuring depths of normal surface notches, based on a laser-based ultrasonic measurement method in the time domain. In determining the depth measurement formulas, the main technique is the time delay between reflected and scattered waves. Scattered waves are generated by two reflections along the bottom and three mode transformations at the surface of the crack tips. Moreover, the scattering angle of the mode-conversion waves is 30°. These two key factors lead to corrected item "2wß" in the depth measurement formula. A laser-based ultrasonic experimental platform is built to generate and receive surface waves in a non-contact manner on aluminum and steel specimens with surface cracks. The depth measurement method proposed in this paper has been validated through theoretical, simulation, and experimental methods. Finally, in this paper, an effective approach for quantitatively measuring crack depths, based on laser ultrasound, using the time-domain properties of surface wave propagation is provided.

7.
Biol Res ; 57(1): 53, 2024 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-39135103

RESUMO

BACKGROUND: As a common disabling disease, irreversible neuronal death due to spinal cord injury (SCI) is the root cause of functional impairment; however, the capacity for neuronal regeneration in the developing spinal cord tissue is limited. Therefore, there is an urgent need to investigate how defective neurons can be replenished and functionally integrated by neural regeneration; the reprogramming of intrinsic cells into functional neurons may represent an ideal solution. METHODS: A mouse model of transection SCI was prepared by forceps clamping, and an adeno-associated virus (AAV) carrying the transcription factors NeuroD1 and Neurogenin-2(Ngn2) was injected in situ into the spinal cord to specifically overexpress these transcription factors in astrocytes close to the injury site. 5-bromo-2´-deoxyuridine (BrdU) was subsequently injected intraperitoneally to continuously track cell regeneration, neuroblasts and immature neurons marker expression, neuronal regeneration, and glial scar regeneration. In addition, immunoprotein blotting was used to measure the levels of transforming growth factor-ß (TGF-ß) pathway-related protein expression. We also evaluated motor function, sensory function, and the integrity of the blood-spinal cord barrier(BSCB). RESULTS: The in situ overexpression of NeuroD1 and Ngn2 in the spinal cord was achieved by specific AAV vectors. This intervention led to a significant increase in cell regeneration and the proportion of cells with neuroblasts and immature neurons cell properties at the injury site(p < 0.0001). Immunofluorescence staining identified astrocytes with neuroblasts and immature neurons cell properties at the site of injury while neuronal marker-specific staining revealed an increased number of mature astrocytes at the injury site. Behavioral assessments showed that the intervention did not improve The BMS (Basso mouse scale) score (p = 0.0726) and gait (p > 0.05), although the treated mice had more sensory sensitivity and greater voluntary motor ability in open field than the non-intervention mice. We observed significant repair of the BSCB at the center of the injury site (p < 0.0001) and a significant improvement in glial scar proliferation. Electrophysiological assessments revealed a significant improvement in spinal nerve conduction (p < 0.0001) while immunostaining revealed that the levels of TGF-ß protein at the site of injury in the intervention group were lower than control group (p = 0.0034); in addition, P70 s6 and PP2A related to the TGF-ß pathway showed ascending trend (p = 0.0036, p = 0.0152 respectively). CONCLUSIONS: The in situ overexpression of NeuroD1 and Ngn2 in the spinal cord after spinal cord injury can reprogram astrocytes into neurons and significantly enhance cell regeneration at the injury site. The reprogramming of astrocytes can lead to tissue repair, thus improving the reduced threshold and increasing voluntary movements. This strategy can also improve the integrity of the blood-spinal cord barrier and enhance nerve conduction function. However, the simple reprogramming of astrocytes cannot lead to significant improvements in the striding function of the lower limbs.


Assuntos
Astrócitos , Fatores de Transcrição Hélice-Alça-Hélice Básicos , Modelos Animais de Doenças , Proteínas do Tecido Nervoso , Traumatismos da Medula Espinal , Animais , Traumatismos da Medula Espinal/terapia , Traumatismos da Medula Espinal/fisiopatologia , Fatores de Transcrição Hélice-Alça-Hélice Básicos/metabolismo , Astrócitos/fisiologia , Proteínas do Tecido Nervoso/metabolismo , Camundongos , Regeneração Nervosa/fisiologia , Neurônios , Feminino , Camundongos Endogâmicos C57BL , Medula Espinal/metabolismo
8.
Front Pharmacol ; 15: 1423629, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38989149

RESUMO

Esophageal squamous cell carcinoma (ESCC) is a malignancy with high incidence in China. Due to the lack of effective molecular targets, the prognosis of ESCC patients is poor. It is urgent to explore the pathogenesis of ESCC to identify promising therapeutic targets. Metabolic reprogramming is an emerging hallmark of ESCC, providing a novel perspective for revealing the biological features of ESCC. In the hypoxic and nutrient-limited tumor microenvironment, ESCC cells have to reprogram their metabolic phenotypes to fulfill the demands of bioenergetics, biosynthesis and redox homostasis of ESCC cells. In this review, we summarized the metabolic reprogramming of ESCC cells that involves glucose metabolism, lipid metabolism, and amino acid metabolism and explore how reprogrammed metabolism provokes novel opportunities for biomarkers and potential therapeutic targets of ESCC.

9.
ACS Appl Mater Interfaces ; 16(28): 36017-36029, 2024 Jul 17.
Artigo em Inglês | MEDLINE | ID: mdl-38975983

RESUMO

Oral infectious diseases have a significant impact on the health of oral and maxillofacial regions, as well as the overall well-being of individuals. Carvacrol and thymol, two isomers known for their effective antibacterial and anti-inflammatory properties, have gained considerable attention in the treatment of oral infectious diseases. However, their application as topical drugs for oral use is limited due to their poor physical and chemical stability. UiO-66, a metal-organic framework based on zirconium ion (Zr4+), exhibits high drug loading capability. Carvacrol and thymol were efficiently loaded onto UiO-66 with loading rates of 79.60 ± 0.71% and 79.65 ± 0.76%, respectively. The release rates of carvacrol and thymol were 77.82 ± 0.87% and 76.51 ± 0.58%, respectively, after a period of 72 h. Moreover, Car@UiO-66 and Thy@UiO-66 demonstrated excellent antibacterial properties against Candida albicans, Escherichia coli, and Staphylococcus aureus with minimum bactericidal concentrations (MBC) of 0.313 mg/mL, 0.313 mg/mL, and 1.25 mg/mL, respectively. Furthermore, based on the results of the CCK8 cytotoxicity assay, even at concentrations as high as 1.25 mg/mL, Car@UiO-66 and Thy@UiO-66 exhibited excellent biocompatibility with a relative cell survival rate above 50%. These findings suggest that Car@UiO-66 and Thy@UiO-66 possess favorable biocompatibility properties without significant toxicity towards periodontal membrane cells. Additionally, in vivo studies confirmed the efficacy of Car@UiO-66and Thy@UiO-66 in reducing inflammation, promoting bone formation through inhibition of TNF-a and IL6 expression, enhancement of IL10 expression, and acceleration of bone defect healing. Therefore, the unique combination of antibacterial, anti-inflammatory, and osteogenic properties make Car@UiO-66 and Thy@Ui O-66 promising candidates for the treatment of oral infectious diseases and repairing bone defects.


Assuntos
Antibacterianos , Anti-Inflamatórios , Candida albicans , Cimenos , Escherichia coli , Estruturas Metalorgânicas , Staphylococcus aureus , Timol , Timol/química , Timol/farmacologia , Cimenos/química , Cimenos/farmacologia , Antibacterianos/farmacologia , Antibacterianos/química , Animais , Anti-Inflamatórios/química , Anti-Inflamatórios/farmacologia , Staphylococcus aureus/efeitos dos fármacos , Escherichia coli/efeitos dos fármacos , Candida albicans/efeitos dos fármacos , Estruturas Metalorgânicas/química , Estruturas Metalorgânicas/farmacologia , Camundongos , Testes de Sensibilidade Microbiana , Ratos , Osteogênese/efeitos dos fármacos , Humanos
10.
World J Gastrointest Surg ; 16(4): 1195-1202, 2024 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-38690044

RESUMO

BACKGROUND: Percutaneous transhepatic stent placement has become a common strategy for the postoperative treatment of portal vein (PV)/superior mesenteric veins (SMV) stenosis/occlusion. It has been widely used after liver transplantation surgery; however, reports on stent placement for acute PV/SMV stenosis after pancreatic surgery within postoperative 3 d are rare. CASE SUMMARY: Herein, we reported a case of intestinal edema and SMV stenosis 2 d after pancreatic surgery. The patient was successfully treated using stent grafts. Although the stenosis resolved after stent placement, complications, including bleeding, pancreatic fistula, bile leakage, and infection, made the treatment highly challenging. The use of anticoagulants was adjusted multiple times to prevent venous thromboembolism and the risk of bleeding. After careful treatment, the patient stabilized, and stent placement effectively managed postoperative PV/SMV stenosis. CONCLUSION: Stent placement is effective and feasible for treating acute PV/SMV stenosis after pancreatic surgery even within postoperative 3 d.

11.
Phytomedicine ; 129: 155681, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38718638

RESUMO

BACKGROUND: Infertility patients account for an astonishing proportion of individuals worldwide. Due to its complex etiology and challenging treatment, infertility has imposed significant psychological and economic burdens on many patients. C. Herba (Cistanche tubulosa (Schenk) Wight and Cistanche deserticola Ma), renowned as one of the most prominent Chinese herbal medicines (CHMs), is abundant in diverse bioactive compounds that exhibit therapeutic effects on many diseases related to oxidative stress (OS) and disorders of sex hormone levels. OBJECTIVE: Due to the limited drugs currently used in clinical practice to improve reproductive outcomes and their inevitable side effects, developing safe and effective new medications for infertility is of significance. This article comprehensively reviewed the phytochemicals of C. Herba, focusing on their efficacy and mechanisms on infertility and their safety for the first time, aiming to offer valuable insights for the development and application of C. Herba, and for developing novel strategies for treating infertility. METHODS: We used "Cistanche" and its known bioactive components in combination with "sperm", "testicles", "epididymis", "ovaries", "uterus", and "infertility" as keywords to search in PubMed, Web of Science, Scopus and CNKI up to November 2023. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guideline was followed. RESULTS: The therapeutic effects of C. Herba on infertility are mainly attributed to echinacoside (ECH), verbascoside (VB), salidroside (SAL), polysaccharides, and betaine. They can effectively improve spermatogenic dysfunction, gonadal dysfunction and erectile dysfunction (ED) by exerting anti-oxidation, sex hormones regulation and anti-hypoxia. Moreover, they can also improve premature ovarian failure (POF), ovarian and uterine cancer, oocyte maturation by exerting anti-oxidation, anti-apoptosis, and anti-cancer. C. Herba and its active ingredients also exhibit pleasing safety. CONCLUSION: C. Herba is a promising source of natural medicine for infertility. Additionally, compared to current therapeutic drugs, its favorable safety also supports its development as a nutritional supplement. However, high-quality clinical studies are required to validate its effectiveness for the development of novel therapeutic strategies.


Assuntos
Cistanche , Medicamentos de Ervas Chinesas , Animais , Feminino , Humanos , Masculino , Cistanche/química , Medicamentos de Ervas Chinesas/farmacologia , Medicamentos de Ervas Chinesas/uso terapêutico , Medicamentos de Ervas Chinesas/química , Glucosídeos/farmacologia , Glucosídeos/uso terapêutico , Glicosídeos , Infertilidade/tratamento farmacológico , Estresse Oxidativo/efeitos dos fármacos , Fenóis/farmacologia , Fenóis/uso terapêutico , Compostos Fitoquímicos/farmacologia , Compostos Fitoquímicos/uso terapêutico , Polifenóis , Reprodução/efeitos dos fármacos
12.
Int J Surg ; 110(9): 5771-5780, 2024 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-38818685

RESUMO

BACKGROUND: Portal vein stent placement is used for portal vein stenosis. However, reports on postpancreatic surgery cases are rare. Whether antithrombotic therapy should be administered remains controversial. In this paper, the authors reviewed current data to evaluate the influence of antithrombosis on stent patency after pancreatic surgery. MATERIALS AND METHODS: This systematic review and meta-analysis compared studies in which patients did or did not receive antithrombotic therapy after portal vein stent placement. The authors compared patency after stent placement and complication rate. RESULTS: There were 22 ( n =207) studies in which patients received antithrombotic therapy and 8 ( n =61) in which patients did not receive therapy. Antithrombotic agents, such as aspirin, clopidogrel, heparin, and warfarin, were used. The overall patency rates were similar between the groups (79.2% in the antithrombosis group vs. 88.0% in the nonantithrombosis group). Subgroup analyses included those for the etiology of stenosis, types of antithrombotic agents, acute or chronic stenosis, and causes of stent stenosis. None revealed a significant difference between the patency rates in the antithrombosis and nonantithrombosis groups. However, bleeding complications only occurred in patients who received antithrombotic therapy. CONCLUSION: There is no significant benefit of antithrombotic therapy after portal vein stent placement following pancreatic surgery. Antithrombotic therapy should be performed with caution because it may cause complications, such as bleeding.


Assuntos
Fibrinolíticos , Veia Porta , Stents , Humanos , Stents/efeitos adversos , Fibrinolíticos/administração & dosagem , Fibrinolíticos/efeitos adversos , Complicações Pós-Operatórias/etiologia , Grau de Desobstrução Vascular/efeitos dos fármacos , Pâncreas/cirurgia
13.
J Pharm Biomed Anal ; 245: 116166, 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-38669816

RESUMO

The study aimed to investigate the relieving effect of QingYan Formula (QYF) in treating perimenopausal syndrome. A combination of metabonomic analysis and in vitro pharmacodynamic experiments was employed to achieve this objective.Over a period of 12 weeks, ovariectomized (OVX) rats were orally administered QYF's 70 % ethanol extract or estradiol valerate (EV). The results demonstrate that QYF restored the estrous cycle of ovariectomized rats and exhibited significant estrogenic activity, as indicated by reversal of uterine and vagina atrophy, improvement of serum estradiol level and decrease of serum luteinizing hormone(LH) level. Additionally, QYF administration effectively reduced high bone turnover and repaired trabecular microstructure damage. Metabonomic analysis of the OVX rats treated with QYF revealed the identification of 55 different metabolites in the serum, out of which 35 may be potential biomarkers. QYF could regulate the disturbed metabolic pathways including the Biosynthesis of unsaturated fatty acids, arachidonic acid metabolism, bile secretion, and steroid hormone biosynthesis. PI3KCA, SRC, and MAPK3 are potential therapeutic targets for QYF therapeutic effects. These findings support the efficacy of QYF in alleviating perimenopausal syndrome and regulating lipid metabolic disorders in OVX rats.


Assuntos
Medicamentos de Ervas Chinesas , Metabolômica , Ovariectomia , Perimenopausa , Ratos Sprague-Dawley , Animais , Feminino , Metabolômica/métodos , Medicamentos de Ervas Chinesas/farmacologia , Ratos , Perimenopausa/efeitos dos fármacos , Estradiol/sangue , Estradiol/farmacologia , Cromatografia Líquida de Alta Pressão/métodos , Biomarcadores/sangue , Hormônio Luteinizante/sangue , Ciclo Estral/efeitos dos fármacos , Útero/efeitos dos fármacos , Útero/metabolismo , Modelos Animais de Doenças
14.
Zhongguo Zhong Yao Za Zhi ; 49(6): 1594-1601, 2024 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-38621944

RESUMO

The ovarian germline stem cells(OGSCs) cultured in the optimized culture system were used as the research object to observe the effect of Tripterygium glycosides(TG) on OGSCs and explore the mechanism of reproductive toxicity by the Notch signaling pathway. Cell counting kit-8(CCK-8) was used to observe the viability level of OGSCs in mice cultured in vitro by TG of 3.75, 7.5, and 15 µg·mL~(-1). Immunofluorescence technology and reverse transcription-polymerase chain reaction(RT-PCR) were used to detect the protein and gene expression level of OGSCs marker mouse vasa homologue(MVH) and octamer-binding transcription factor 4(Oct4) by TG of 3.75 µg·mL~(-1). RT-PCR detected the gene expression of neurogenic locus Notch homolog protein 1(Notch1), Hes family BHLH transcription factor 1(Hes1), and jagged canonical Notch ligand 1(Jagged1). The RNA was extracted for transcriptome analysis to analyze the mechanism of action of TG intervention on OGSCs. 3.75 µg·mL~(-1) of TG was combined with 40 ng·mL~(-1) Notch signaling pathway γ-secretagocin agonist jagged canonical notch ligand(Jagged) for administration. CCK-8 was used to detect the viability level of OGSCs. Double immunofluorescence technology was used to detect the protein co-expression of MVH with Hes1, Notch1, and Jagged1. The results showed that compared with the blank group, the TG administration group significantly inhibited the activity of OGSCs(P<0.01 or P<0.001). It could reduce the protein and gene expression of OGSC markers, namely MVH and Oct4(P<0.05, P<0.01, or P<0.001). It could significantly inhibit the gene expression of Notch1, Hes1, and Jagged1(P<0.001). Transcriptomic analysis showed that TG affected the growth and proliferation of OGSCs by intervening Jagged1, a ligand associated with the Notch signaling pathway. The experimental results showed that the combination of Notch signaling pathway γ-secretagorein agonist Jagged could significantly alleviate the decrease in OGSC viability induced by TG(P<0.001) and significantly increased the OGSC viability compared with the TG group(P<0.001). It also could significantly increase the co-expression of MVH/Jagged1, MVH/Hes1, and MVH/Notch1 proteins(P<0.01 or P<0.001). It suggested that TG play the role of γ-secretagorease inhibitors by downregulating the OGSC markers including MVH and Oct4 and Notch signaling pathway molecules such as Notch1, Hes1, and Jagged1, participate in the OGSC pathway, and mediate reproductive toxicity caused by the Notch signaling pathway.


Assuntos
Células-Tronco de Oogônios , Camundongos , Animais , Células-Tronco de Oogônios/metabolismo , Tripterygium , Ligantes , Transdução de Sinais
15.
Front Immunol ; 15: 1368203, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38545108

RESUMO

Spinal cord injury (SCI) results in a large amount of tissue cell debris in the lesion site, which interacts with various cytokines, including inflammatory factors, and the intrinsic glial environment of the central nervous system (CNS) to form an inhibitory microenvironment that impedes nerve regeneration. The efficient clearance of tissue debris is crucial for the resolution of the inhibitory microenvironment after SCI. Macrophages are the main cells responsible for tissue debris removal after SCI. However, the high lipid content in tissue debris and the dysregulation of lipid metabolism within macrophages lead to their transformation into foamy macrophages during the phagocytic process. This phenotypic shift is associated with a further pro-inflammatory polarization that may aggravate neurological deterioration and hamper nerve repair. In this review, we summarize the phenotype and metabolism of macrophages under inflammatory conditions, as well as the mechanisms and consequences of foam cell formation after SCI. Moreover, we discuss two strategies for foam cell modulation and several potential therapeutic targets that may enhance the treatment of SCI.


Assuntos
Células Espumosas , Traumatismos da Medula Espinal , Humanos , Células Espumosas/patologia , Traumatismos da Medula Espinal/metabolismo , Macrófagos/metabolismo , Sistema Nervoso Central/metabolismo
16.
Adv Mater ; 36(31): e2401035, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38552161

RESUMO

Wearable epidermic electronics assembled from conductive hydrogels are attracting various research attention for their seamless integration with human body for conformally real-time health monitoring, clinical diagnostics and medical treatment, and human-interactive sensing. Nevertheless, it remains a tremendous challenge to simultaneously achieve conformally bioadhesive epidermic electronics with remarkable self-adhesiveness, reliable ultraviolet (UV) protection ability, and admirable sensing performance for high-fidelity epidermal electrophysiological signals monitoring, along with timely photothermal therapeutic performances after medical diagnostic sensing, as well as efficient antibacterial activity and reliable hemostatic effect for potential medical therapy. Herein, a conformally bioadhesive hydrogel-based epidermic sensor, featuring superior self-adhesiveness and excellent UV-protection performance, is developed by dexterously assembling conducting MXene nanosheets network with biological hydrogel polymer network for conformally stably attaching onto human skin for high-quality recording of various epidermal electrophysiological signals with high signal-to-noise ratios (SNR) and low interfacial impedance for intelligent medical diagnosis and smart human-machine interface. Moreover, a smart sign language gesture recognition platform based on collected electromyogram (EMG) signals is designed for hassle-free communication with hearing-impaired people with the help of advanced machine learning algorithms. Meanwhile, the bioadhesive MXene hydrogel possesses reliable antibacterial capability, excellent biocompatibility, and effective hemostasis properties for promising bacterial-infected wound bleeding.


Assuntos
Hidrogéis , Aprendizado de Máquina , Dispositivos Eletrônicos Vestíveis , Hidrogéis/química , Humanos , Antibacterianos/farmacologia , Antibacterianos/química , Condutividade Elétrica , Animais , Pele , Camundongos , Adesividade , Raios Ultravioleta , Eletrônica
17.
Aesthetic Plast Surg ; 48(9): 1672-1678, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38448603

RESUMO

BACKGROUND: Thread-lifting (TL) is a minimally-invasive technique for facial rejuvenation, whereas liposuction is commonly used for facial contouring. This retrospective cohort study aims to introduce and evaluate a novel technique that combines liposuction and thread-lifting for mid-lower facial rejuvenation. METHODS: Consecutive patients who underwent TL for mid-lower facial rejuvenation from May 2016 to May 2021 were divided into thread-lifting group (TL group) or thread-lifting plus liposuction group (TLL group) according to whether liposuction was performed adjunctively. The co-primary outcomes were the changes between the preoperative and 6-month postoperative Wrinkle Severity Rating Scale (WSRS) and Facial Aging Evaluation Scale (FAES). RESULTS: A total of 185 patients (184 females) with an average age of 34.5±5.5 years were included. There were no significant differences in patients' age, number of threads, and preoperative WSRS and FAES between the two groups. The TLL group (n = 128) had significantly lower postoperative WSRS (1.5±0.6 vs. 1.8±0.8, p<0.001) and FAES (2.5±1.4 vs. 3.8±2.1, p<0.001) than the TL group (n = 57). The decrease in WSRS (0.8±0.6 vs. 0.2±0.7, p<0.001) and FAES (2.7±1.3 vs. 1.6±1.6, p<0.001) were greater in the TLL group. Only 3.8% patients experienced slight side effects and totally recovered. CONCLUSIONS: The combination of TL and liposuction is an effective and safe technique for simultaneous contour improvement and facial rejuvenation in middle-aged East Asian females. LEVEL OF EVIDENCE II: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors https://www.springer.com/00266 .


Assuntos
Lipectomia , Rejuvenescimento , Ritidoplastia , Envelhecimento da Pele , Humanos , Lipectomia/métodos , Feminino , Estudos Retrospectivos , Adulto , Ritidoplastia/métodos , Masculino , Estudos de Coortes , Resultado do Tratamento , Estética , Pessoa de Meia-Idade , Técnicas de Sutura , Procedimentos Cirúrgicos Minimamente Invasivos/métodos
18.
Compr Psychiatry ; 132: 152472, 2024 07.
Artigo em Inglês | MEDLINE | ID: mdl-38513451

RESUMO

BACKGROUND: This study aimed to explore the longitudinal associations of rumination with suicidal ideation and suicide attempts in individuals with major depressive disorder (MDD). METHODS: Participants were derived from the Depression Cohort in China study (DCC). Those who completed at least one follow-up visit during the 12 months were included in the analysis. Dimensions of rumination including brooding and reflection were each measured using five items of the Ruminative Responses Scale. Suicidal ideation was assessed using the Beck Scale for Suicide Ideation. Suicide attempts were also assessed and all were analyzed with generalized estimating equations. RESULTS: Our final sample included 532 participants aged 18 to 59 years (mean [SD], 26.91 [6.94] years) consisting of 148 (27.8%) males and 384 (72.2%) females. After adjusting for temporal trend and potential confounders, individuals with higher levels of reflection were more likely to report suicidal ideation (AOR =1.11, 95% CI:1.01-1.22). However, no statistically significant association was found between brooding and suicidal ideation (AOR =1.06, 95% CI:0.96-1.17). Conversely, individuals with higher levels of brooding were more likely to report suicide attempts (AOR =1.13, 95% CI:1.02-1.24), while no statistically significant association was observed between reflection and suicide attempts (AOR =0.91, 95% CI:0.82-1.01). CONCLUSION: Rumination reflects a disturbance in cognitive emotional processing and manifests in different dimensions. Our findings suggest that high levels of reflection and brooding may be associated with a higher likelihood of having suicidal ideation and suicide attempts, respectively. However, it should be interpreted with caution, given that effect sizes are small.


Assuntos
Transtorno Depressivo Maior , Ruminação Cognitiva , Ideação Suicida , Tentativa de Suicídio , Humanos , Transtorno Depressivo Maior/psicologia , Transtorno Depressivo Maior/epidemiologia , Feminino , Masculino , Tentativa de Suicídio/psicologia , Tentativa de Suicídio/estatística & dados numéricos , Adulto , China/epidemiologia , Estudos Longitudinais , Adolescente , Adulto Jovem , Pessoa de Meia-Idade
19.
Front Immunol ; 15: 1334828, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38348031

RESUMO

Spinal cord injury is a severe neurological trauma that can frequently lead to neuropathic pain. During the initial stages following spinal cord injury, inflammation plays a critical role; however, excessive inflammation can exacerbate pain. Regulatory T cells (Treg cells) have a crucial function in regulating inflammation and alleviating neuropathic pain. Treg cells release suppressor cytokines and modulate the function of other immune cells to suppress the inflammatory response. Simultaneously, inflammation impedes Treg cell activity, further intensifying neuropathic pain. Therefore, suppressing the inflammatory response while enhancing Treg cell regulatory function may provide novel therapeutic avenues for treating neuropathic pain resulting from spinal cord injury. This review comprehensively describes the mechanisms underlying the inflammatory response and Treg cell regulation subsequent to spinal cord injury, with a specific focus on exploring the potential mechanisms through which Treg cells regulate neuropathic pain following spinal cord injury. The insights gained from this review aim to provide new concepts and a rationale for the therapeutic prospects and direction of cell therapy in spinal cord injury-related conditions.


Assuntos
Neuralgia , Traumatismos da Medula Espinal , Humanos , Linfócitos T Reguladores , Neuralgia/etiologia , Neuralgia/terapia , Traumatismos da Medula Espinal/complicações , Traumatismos da Medula Espinal/terapia , Inflamação/terapia , Citocinas
20.
Microbiome ; 12(1): 35, 2024 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-38378577

RESUMO

BACKGROUND: Haemaphysalis longicornis is drawing attentions for its geographic invasion, extending population, and emerging disease threat. However, there are still substantial gaps in our knowledge of viral composition in relation to genetic diversity of H. longicornis and ecological factors, which are important for us to understand interactions between virus and vector, as well as between vector and ecological elements. RESULTS: We conducted the meta-transcriptomic sequencing of 136 pools of H. longicornis and identified 508 RNA viruses of 48 viral species, 22 of which have never been reported. Phylogenetic analysis of mitochondrion sequences divided the ticks into two genetic clades, each of which was geographically clustered and significantly associated with ecological factors, including altitude, precipitation, and normalized difference vegetation index. The two clades showed significant difference in virome diversity and shared about one fifth number of viral species that might have evolved to "generalists." Notably, Bandavirus dabieense, the pathogen of severe fever with thrombocytopenia syndrome was only detected in ticks of clade 1, and half number of clade 2-specific viruses were aquatic-animal-associated. CONCLUSIONS: These findings highlight that the virome diversity is shaped by internal genetic evolution and external ecological landscape of H. longicornis and provide the new foundation for promoting the studies on virus-vector-ecology interaction and eventually for evaluating the risk of H. longicornis for transmitting the viruses to humans and animals. Video Abstract.


Assuntos
Ixodidae , Phlebovirus , Carrapatos , Animais , Humanos , Ixodidae/genética , Haemaphysalis longicornis , Viroma/genética , Filogenia , Phlebovirus/genética
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