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1.
Phytomedicine ; 134: 155995, 2024 Aug 31.
Artigo em Inglês | MEDLINE | ID: mdl-39270591

RESUMO

BACKGROUND: Instead of completely suppressing blood vessels inside tumors, vascular normalization therapy is proposed to normalize and prune the abnormal vasculature in tumor microenvironment (TME) to acquire a normal and stable blood flow and perfusion. The theoretical basis for the use of "blood-activating and stasis-resolving" formulas in Traditional Chinese Medicine to treat cancer is highly consistent with the principle of vascular normalization therapy, suggesting the potential application of these traditional formulas in vascular normalization therapy. PURPOSE: To study the underlying mechanisms of a classical "blood-activating and stasis-resolving" formula, Taohong Siwu decoction (TSD), in enhancing the efficacy of chemotherapy for breast cancer treatment. STUDY DESIGN: HUVECs and transgenic zebrafish embryos were used as the major model in vitro. A 4T1 mouse breast cancer model was applied to study tumor vasculature normalization of TSD and the combination effects with DOX. RESULTS: Our data showed that TSD exhibited anti-angiogenic potential in HUVECs and transgenic zebrafish embryos. After 20 days treatment, TSD significantly normalized the tumor vasculature by remodeling vessel structure, reducing intratumoral hypoxia and vessel leakage, and promoting vessel maturation and blood perfusion in 4T1 breast tumor-bearing mice. Moreover, the anti-tumor efficacy of doxorubicin liposome in 4T1 breast tumors was significantly improved by TSD, including the suppression of tumor cell proliferation, angiogenesis, hypoxia, and the increase of cell apoptosis, which is likely through the vascular normalization induced by TSD. TSD also shifted the macrophage polarization from M2 to M1 phenotype in TME during the combination therapy, as evidenced by the reduced number of CD206+ macrophages and increased number of CD86+ macrophages. Additionally, TSD treatment protected against doxorubicin-induced cardiotoxicity in animals, as evidenced by the reduced cardiomyocytes apoptosis and improved heart function. CONCLUSION: This study demonstrated for the first time that TSD as a classical Chinese formula can enhance the drug efficacy and reduce the side effects of doxorubicin. These findings can support that TSD could be used as an adjuvant therapy in combination with conventional chemotherapy for the future breast cancer treatment.

2.
Australas J Dermatol ; 2024 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-39253938

RESUMO

A survey of Mohs surgery specialists in Australia showed diazepam was the preferred agent and felt to be the safest oral benzodiazepine for perioperative anxiolysis.

3.
J Gen Intern Med ; 2024 Jul 25.
Artigo em Inglês | MEDLINE | ID: mdl-39060782

RESUMO

BACKGROUND: Guidelines for managing abnormal cervical cancer screening results are complex and adherence is challenging for clinicians. Previous studies have identified gaps in knowledge as a possible cause; few have explored the confidence clinicians have in their management decisions. Confidence in decision-making may influence management practices, particularly when guidelines are complex and evolving. OBJECTIVE: Assess whether confidence in decision-making is associated with making guideline-concordant recommendations for abnormal cervical cancer screening results. DESIGN: A clinician survey used vignettes to ask clinicians to make a management recommendation for different abnormal results and rate their level of confidence in their response. PARTICIPANTS: Physicians and advanced practice providers (APPs) at three diverse health systems in Washington, Texas, and Massachusetts. MAIN MEASURES: Correct response to each vignette based on either the 2012 or 2019 American Colposcopy and Cervical Pathology (ASCCP) management guidelines. KEY RESULTS: In total, 501 clinicians completed the survey between October and December 2020 (response rate 53.7%). Overall, most clinicians made guideline-recommended management decisions for two vignettes (73.2 and 73.7%), but fewer were confident in their selection (48.3% and 46.6%, respectively). Clinicians who reported high levels of confidence were more often correct than those who reported lower levels of confidence (85.8% vs. 62.2% and 87.5% vs. 60.7%, both p<0.001). After adjusting for clinician and practice characteristics, confidence remained significantly associated with selecting the correct answer. CONCLUSIONS: Clinician confidence in management decisions for abnormal cervical cancer screening results was significantly associated with knowing guideline-concordant recommendations. Given the complexity of cervical cancer management guidelines, solutions to improve clinician confidence in decision-making are needed.

4.
Intern Med J ; 54(8): 1254-1263, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38874281

RESUMO

Cancer therapy-related cardiac dysfunction (CTRCD) is a complication of selected cancer therapy agents associated with decline in left ventricular ejection fraction (LVEF). Angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin receptor blockers (ARBs) have established benefits in heart failure with reduced ejection fraction, but their efficacy for preventing CTRCD remains controversial. This narrative systematic review assessed the efficacy and safety of ACEI/ARB in the prevention of cancer therapy LVEF decline. We systematically searched PubMed, Embase and Cochrane from January 1980 to June 2022. Studies of interest were randomised controlled trials of patients with normal LVEF and active malignancy receiving cancer therapy, randomised to receive either an ACEI or ARB compared with a control group. The outcome was the change in LVEF from baseline to the end of the follow-up period. Death, clinical heart failure and adverse drug reactions were recorded. A total of 3731 search records were screened and 12 studies were included, comprising a total of 1645 participants. Nine studies assessed the prevention of anthracycline-induced LVEF decline, of which five showed a beneficial effect (1%-14% higher LVEF in treated groups), whereas four studies showed no effect. Three studies assessed the prevention of trastuzumab-induced LVEF decline, of which one showed a beneficial effect (4% higher LVEF) in a subset of participants. There are mixed data regarding the efficacy of ACEI/ARB in preventing the LVEF decline in patients undergoing anthracycline or trastuzumab therapy, with evidence suggesting no clinically meaningful benefit observed in recent studies.


Assuntos
Antagonistas de Receptores de Angiotensina , Inibidores da Enzima Conversora de Angiotensina , Antraciclinas , Antineoplásicos , Volume Sistólico , Trastuzumab , Disfunção Ventricular Esquerda , Humanos , Antagonistas de Receptores de Angiotensina/administração & dosagem , Inibidores da Enzima Conversora de Angiotensina/administração & dosagem , Antraciclinas/efeitos adversos , Antineoplásicos/efeitos adversos , Cardiotoxicidade/etiologia , Cardiotoxicidade/prevenção & controle , Neoplasias/tratamento farmacológico , Ensaios Clínicos Controlados Aleatórios como Assunto , Volume Sistólico/efeitos dos fármacos , Trastuzumab/efeitos adversos , Disfunção Ventricular Esquerda/induzido quimicamente , Disfunção Ventricular Esquerda/prevenção & controle , Função Ventricular Esquerda/efeitos dos fármacos
5.
Biomed Pharmacother ; 176: 116901, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38878683

RESUMO

BACKGROUND: Amauroderma rugosum (AR) is a medicinal mushroom commonly used to treat inflammation, gastric disorders, epilepsy, and cancers due to its remarkable anti-inflammatory and anti-oxidative properties. This study was designed to evaluate the pharmacological effects of AR and its underlying mechanism of action against ulcerative colitis (UC) in vitro and in vivo. METHODS: A UC mouse model was established by administration of dextran sulfate sodium (DSS). AR extract was administered intragastrically to mice for 7 days. At the end of the experiment, histopathology, macrophage phenotype, oxidative stress, and inflammatory status were examined in vivo. Furthermore, RAW 264.7, THP-1, and Caco-2 cells were used to elucidate the mechanism of action of AR in vitro. RESULTS: AR extract (0.5-2 mg/mL) significantly suppressed lipopolysaccharide (LPS) and interferon-gamma (IFN-γ)-induced M1 macrophage (pro-inflammatory) polarization in both RAW 264.7 and THP-1 cells. LPS-induced pro-inflammatory mediators (nitric oxide, TNF-α, IL-1ß, MCP-1, and IL-6) were reduced by AR extract in a concentration-dependent manner. Similarly, AR extract downregulated MAPK signaling activity in LPS-stimulated RAW 264.7 cells. AR extract elicited a concentration-dependent increase in the mRNA expression of M2 (anti-inflammatory) phenotype markers (CD206, Arg-1, Fizz-1, and Ym-1) in RAW 264.7 cells. Moreover, AR extract suppressed DSS-induced ROS generation and mitochondrial dysfunction in Caco-2 cells. The in vivo experiment revealed that AR extract (200 mg/kg) increased colon length compared to the DSS-treated group. In addition, disease activity index, spleen ratio, body weight, oxidative stress, and colonic inflammation were markedly improved by AR treatment in DSS-induced UC mice. Finally, AR suppressed M1 and promoted M2 macrophage polarization in UC mice. CONCLUSION: The AR extract protected against DSS-induced UC by regulating macrophage polarization and suppressing oxidative stress. These valuable findings suggest that adequate intake of AR can prevent and/or treat UC.


Assuntos
Colite Ulcerativa , Sulfato de Dextrana , Macrófagos , Estresse Oxidativo , Animais , Colite Ulcerativa/induzido quimicamente , Colite Ulcerativa/tratamento farmacológico , Colite Ulcerativa/patologia , Colite Ulcerativa/metabolismo , Colite Ulcerativa/prevenção & controle , Estresse Oxidativo/efeitos dos fármacos , Camundongos , Humanos , Células CACO-2 , Células RAW 264.7 , Macrófagos/efeitos dos fármacos , Macrófagos/metabolismo , Masculino , Células THP-1 , Anti-Inflamatórios/farmacologia , Modelos Animais de Doenças , Camundongos Endogâmicos C57BL , Citocinas/metabolismo , Mediadores da Inflamação/metabolismo
6.
Int J Biol Macromol ; 271(Pt 2): 132533, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38777026

RESUMO

Amauroderma rugosum (AR), also known as "Blood Lingzhi" in Chinese, is a basidiomycete belonging to the Ganodermataceae family. Four polysaccharide fractions were systematically isolated and purified from AR. Subsequently, their compositions were examined and analyzed via high-performance gel permeation chromatography (HPGPC), analysis of the monosaccharide composition, Fourier-transform infrared spectroscopy (FT-IR), and 1H nuclear magnetic resonance (NMR). The zebrafish model was then used to screen for proangiogenic activities of polysaccharides by inducing vascular insufficiency with VEGF receptor tyrosine kinase inhibitor II (VRI). The third fraction of AR polysaccharides (PAR-3) demonstrated the most pronounced proangiogenic effects, effectively ameliorating VRI-induced intersegmental vessel deficiency in zebrafish. Concurrently, the mRNA expression levels of vascular endothelial growth factor (VEGF)-A and VEGF receptors were upregulated by PAR-3. Moreover, the proliferation, migration, invasion, and tube formation of human umbilical vein endothelial cells (HUVECs) were also stimulated by PAR-3, consistently demonstrating that PAR-3 possesses favorable proangiogenic properties. The activation of the Akt, ERK1/2, p38 MAPK, and FAK was most likely the underlying mechanism. In conclusion, this study establishes that PAR-3 isolated from Amauroderma rugosum exhibits potential as a bioresource for promoting angiogenesis.


Assuntos
Células Endoteliais da Veia Umbilical Humana , Peixe-Zebra , Animais , Humanos , Células Endoteliais da Veia Umbilical Humana/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Movimento Celular/efeitos dos fármacos , Polissacarídeos/farmacologia , Polissacarídeos/química , Fator A de Crescimento do Endotélio Vascular/metabolismo , Fator A de Crescimento do Endotélio Vascular/genética , Neovascularização Fisiológica/efeitos dos fármacos , Indutores da Angiogênese/farmacologia , Indutores da Angiogênese/química , Receptores de Fatores de Crescimento do Endotélio Vascular/metabolismo , Receptores de Fatores de Crescimento do Endotélio Vascular/genética , Basidiomycota/química , Polissacarídeos Fúngicos/farmacologia , Polissacarídeos Fúngicos/química
7.
Pharmacol Res ; 203: 107173, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38580186

RESUMO

Our recent multi-omics studies have revealed rich sources of novel bioactive proteins and polypeptides from marine organisms including cnidarians. In the present study, we initially conducted a transcriptomic analysis to review the composition profile of polypeptides from Zoanthus sociatus. Then, a newly discovered NPY-like polypeptide-ZoaNPY was selected for further in silico structural, binding and virtually pharmacological studies. To evaluate the pro-angiogenic effects of ZoaNPY, we employed an in vitro HUVECs model and an in vivo zebrafish model. Our results indicate that ZoaNPY, at 1-100 pmol, enhances cell survival, migration and tube formation in the endothelial cells. Besides, treatment with ZoaNPY could restore a chemically-induced vascular insufficiency in zebrafish embryos. Western blot results demonstrated the application of ZoaNPY could increase the phosphorylation of proteins related to angiogenesis signaling including PKC, PLC, FAK, Src, Akt, mTOR, MEK, and ERK1/2. Furthermore, through molecular docking and surface plasmon resonance (SPR) verification, ZoaNPY was shown to directly and physically interact with NPY Y2 receptor. In view of this, all evidence showed that the pro-angiogenic effects of ZoaNPY involve the activation of NPY Y2 receptor, thereby activating the Akt/mTOR, PLC/PKC, ERK/MEK and Src- FAK-dependent signaling pathways. Furthermore, in an excision wound model, the treatment with ZoaNPY was shown to accelerate the wound healing process in mice. Our findings provide new insights into the discovery and development of novel pro-angiogenic drugs derived from NPY-like polypeptides in the future.


Assuntos
Cnidários , Peptídeos , Receptores de Neuropeptídeo Y , Animais , Humanos , Camundongos , Movimento Celular/efeitos dos fármacos , Quinase 1 de Adesão Focal/efeitos dos fármacos , Quinase 1 de Adesão Focal/metabolismo , Células Endoteliais da Veia Umbilical Humana/efeitos dos fármacos , Ligantes , Simulação de Acoplamento Molecular , Neovascularização Fisiológica/efeitos dos fármacos , Neuropeptídeo Y/metabolismo , Neuropeptídeo Y/farmacologia , Peptídeos/farmacologia , Proteína Quinase C/efeitos dos fármacos , Proteína Quinase C/metabolismo , Receptores de Neuropeptídeo Y/efeitos dos fármacos , Receptores de Neuropeptídeo Y/metabolismo , Transdução de Sinais/efeitos dos fármacos , Quinases da Família src/efeitos dos fármacos , Quinases da Família src/metabolismo , Peixe-Zebra , Cnidários/química , Fosfoinositídeo Fosfolipase C/efeitos dos fármacos , Fosfoinositídeo Fosfolipase C/metabolismo
8.
J Natl Compr Canc Netw ; 22(5): 308-314, 2024 04 26.
Artigo em Inglês | MEDLINE | ID: mdl-38670152

RESUMO

BACKGROUND: Recent modifications to low-dose CT (LDCT)-based lung cancer screening guidelines increase the number of eligible individuals, particularly among racial and ethnic minorities. Because these populations disproportionately live in metropolitan areas, we analyzed the association between travel time and initial LDCT completion within an integrated, urban safety-net health care system. METHODS: Using Esri's StreetMap Premium, OpenStreetMap, and the r5r package in R, we determined projected private vehicle and public transportation travel times between patient residence and the screening facility for LDCT ordered in March 2017 through December 2022 at Parkland Memorial Hospital in Dallas, Texas. We characterized associations between travel time and LDCT completion in univariable and multivariable analyses. We tested these associations in a simulation of 10,000 permutations of private vehicle and public transportation distribution. RESULTS: A total of 2,287 patients were included in the analysis, of whom 1,553 (68%) completed the initial ordered LDCT. Mean age was 63 years, and 73% were underrepresented minorities. Median travel time from patient residence to the LDCT screening facility was 17 minutes by private vehicle and 67 minutes by public transportation. There was a small difference in travel time to the LDCT screening facility by public transportation for patients who completed LDCT versus those who did not (67 vs 66 min, respectively; P=.04) but no difference in travel time by private vehicle for these patients (17 min for both; P=.67). In multivariable analysis, LDCT completion was not associated with projected travel time to the LDCT facility by private vehicle (odds ratio, 1.01; 95% CI, 0.82-1.25) or public transportation (odds ratio, 1.14; 95% CI, 0.89-1.44). Similar results were noted across travel-type permutations. Black individuals were 29% less likely to complete LDCT screening compared with White individuals. CONCLUSIONS: In an urban population comprising predominantly underrepresented minorities, projected travel time is not associated with initial LDCT completion in an integrated health care system. Other reasons for differences in LDCT completion warrant investigation.


Assuntos
Detecção Precoce de Câncer , Acessibilidade aos Serviços de Saúde , Neoplasias Pulmonares , Provedores de Redes de Segurança , Tomografia Computadorizada por Raios X , Humanos , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/epidemiologia , Neoplasias Pulmonares/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Feminino , Detecção Precoce de Câncer/métodos , Detecção Precoce de Câncer/estatística & dados numéricos , Tomografia Computadorizada por Raios X/métodos , Idoso , Provedores de Redes de Segurança/estatística & dados numéricos , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Acessibilidade aos Serviços de Saúde/normas , Texas/epidemiologia , População Urbana/estatística & dados numéricos , Viagem/estatística & dados numéricos , Programas de Rastreamento/métodos , Programas de Rastreamento/estatística & dados numéricos , Programas de Rastreamento/normas , Meios de Transporte/estatística & dados numéricos , Meios de Transporte/métodos
9.
Pediatr Infect Dis J ; 43(5): e160-e163, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38635912

RESUMO

We prospectively analyzed clinical and laboratory characteristics associated with cardiac involvement and severe presentation in multisystem inflammatory syndrome in children. Of 146 patients, 66 (45.2%) had cardiac dysfunction and 26 (17.8%) had coronary artery abnormalities. Lower serum albumin levels, absolute lymphocyte and platelet counts, and elevated ferritin, fibrinogen, d-dimer and interleukin-6 levels were associated with cardiac dysfunction. Possible treatment complications were identified.


Assuntos
COVID-19/complicações , Cardiopatias , Criança , Humanos , Interleucina-6 , Laboratórios , Síndrome de Resposta Inflamatória Sistêmica/diagnóstico
10.
J Natl Compr Canc Netw ; 22(3): 151-157, 2024 03 15.
Artigo em Inglês | MEDLINE | ID: mdl-38489927

RESUMO

BACKGROUND: Although low-dose, CT-based lung cancer screening (LCS) can decrease lung cancer mortality in high-risk individuals, the process may be complex and pose challenges to patients, particularly those from minority underinsured and uninsured populations. We conducted a randomized controlled trial of telephone-based navigation for LCS within an integrated, urban, safety-net health care system. PATIENTS AND METHODS: Patients eligible for LCS were randomized (1:1) to usual care with or without navigation at Parkland Health in Dallas, Texas. The primary endpoint was completion of the first 3 consecutive steps in a patient's LCS process. We explored differences in completion of LCS steps between navigation and usual care groups, controlling for patient characteristics using the chi-square test. RESULTS: Patients (N=447) were randomized to either navigation (n=225) or usual care (n=222). Mean patient age was 62 years, 46% were female, and 69% were racial/ethnic minorities. There was no difference in completion of the first 3 steps of the LCS algorithm between arms (12% vs 9%, respectively; P=.30). For ordered LCS steps, completion rates were higher among patients who received navigation (86% vs 79%; P=.03). The primary reason for step noncompletion was lack of order placement. CONCLUSIONS: In this study, lack of order placement was a key reason for incomplete LCS steps. When orders were placed, patients who received navigation had higher rates of completion. Clinical team education and enhanced electronic health record processes to simplify order placement, coupled with patient navigation, may improve LCS in safety-net health care systems.


Assuntos
Neoplasias Pulmonares , Navegação de Pacientes , Humanos , Feminino , Pessoa de Meia-Idade , Masculino , Neoplasias Pulmonares/diagnóstico , Detecção Precoce de Câncer , Populações Vulneráveis , Grupos Minoritários , Programas de Rastreamento
11.
Biomed Pharmacother ; 172: 116269, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38367549

RESUMO

AGS-30, a new andrographolide derivative, showed significant anticancer and anti-angiogenic characteristics. However, its role in controlling macrophage polarization and tumor immune response is unknown. Thus, the main goals of this study are to investigate how AGS-30 regulates macrophage polarization and how it suppresses breast cancer metastasis. AGS-30 inhibited IL-4 and IL-13-induced RAW 264.7 and THP-1 macrophages into M2-like phenotype. However, AGS-30 did not affect the LPS and IFN-γ-induced polarization of M1-like macrophages. AGS-30 reduced the mRNA expressions of CD206, Arg-1, Fizz-1, Ym-1, VEGF, IL-10, MMP2, and MMP9 in M2-like macrophages in a concentration-dependent manner. In contrast, andrographolide treatment at 5 µM did not affect M1-like and M2-like macrophage polarization. The conditioned medium from M2-like macrophages increased 4T1 breast cancer cell migration and invasion, whereas AGS-30 inhibited these effects. In the 4T1 breast tumor xenograft mice, the tumor volume and weight were reduced without affecting body weight after receiving AGS-30. AGS-30 treatment also reduced lung and liver metastasis, with reduced STAT6, CD31, VEGF, and Ki67 protein expressions. Moreover, the tumors had considerably fewer M2-like macrophages and Arg-1 expression, but the proportion of M1-like macrophages and iNOS expression increased after AGS-30 treatment. Same results were found in the tail vein metastasis model. In conclusion, this study shows that AGS-30 inhibits breast cancer growth and metastasis, probably through inhibiting M2-like macrophage polarization. Our findings suggest that AGS-30 may be a potential immunotherapeutic alternative for metastatic breast cancer.


Assuntos
Neoplasias da Mama , Diterpenos , Animais , Feminino , Humanos , Camundongos , Neoplasias da Mama/tratamento farmacológico , Meios de Cultivo Condicionados , Diterpenos/farmacologia , Neoplasias Mamárias Animais/tratamento farmacológico , Fator A de Crescimento do Endotélio Vascular
12.
BMC Cancer ; 24(1): 158, 2024 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-38297229

RESUMO

BACKGROUND: Guidelines recommend cardiovascular risk assessment and counseling for cancer survivors. For effective implementation, it is critical to understand survivor cardiovascular health (CVH) profiles and perspectives in community settings. We aimed to (1) Assess survivor CVH profiles, (2) compare self-reported and EHR-based categorization of CVH factors, and (3) describe perceptions regarding addressing CVH during oncology encounters. METHODS: This cross-sectional analysis utilized data from an ongoing NCI Community Oncology Research Program trial of an EHR heart health tool for cancer survivors (WF-1804CD). Survivors presenting for routine care after potentially curative treatment recruited from 8 oncology practices completed a pre-visit survey, including American Heart Association Simple 7 CVH factors (classified as ideal, intermediate, or poor). Medical record abstraction ascertained CVD risk factors and cancer characteristics. Likert-type questions assessed desired discussion during oncology care. RESULTS: Of 502 enrolled survivors (95.6% female; mean time since diagnosis = 4.2 years), most had breast cancer (79.7%). Many survivors had common cardiovascular comorbidities, including high cholesterol (48.3%), hypertension or high BP (47.8%) obesity (33.1%), and diabetes (20.5%); 30.5% of survivors received high cardiotoxicity potential cancer treatment. Less than half had ideal/non-missing levels for physical activity (48.0%), BMI (18.9%), cholesterol (17.9%), blood pressure (14.1%), healthy diet (11.0%), and glucose/ HbA1c (6.0%). While > 50% of survivors had concordant EHR-self-report categorization for smoking, BMI, and blood pressure; cholesterol, glucose, and A1C were unknown by survivors and/or missing in the EHR for most. Most survivors agreed oncology providers should talk about heart health (78.9%). CONCLUSIONS: Tools to promote CVH discussion can fill gaps in CVH knowledge and are likely to be well-received by survivors in community settings. TRIAL REGISTRATION: NCT03935282, Registered 10/01/2020.


Assuntos
Neoplasias da Mama , Doenças Cardiovasculares , Feminino , Humanos , Masculino , Pressão Sanguínea , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/etiologia , Colesterol , Estudos Transversais , Seguimentos , Glucose , Nível de Saúde , Medição de Risco , Fatores de Risco , Sobreviventes , Estados Unidos , Ensaios Clínicos como Assunto
13.
Eur J Pharm Sci ; 194: 106696, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38199443

RESUMO

Parkinson's disease is the second most prevalent age-related neurodegenerative disease and disrupts the lives of people aged >60 years. Meanwhile, single-target drugs becoming inapplicable as PD pathogenesis diversifies. Mitochondrial dysfunction and neurotoxicity have been shown to be relevant to the pathogenesis of PD. The novel synthetic compound J24335 (11-Hydroxy-1-(8-methoxy-5-(trifluoromethyl)quinolin-2-yl)undecan-1-one oxime), which has been researched similarly to J2326, has the potential to be a multi-targeted drug and alleviate these lesions. Therefore, we investigated the mechanism of action and potential neuroprotective function of J24335 against 6-OHDA-induced neurotoxicity in mice, and in PC12 cell models. The key target of action of J24335 was also screened. MTT assay, LDH assay, flow cytometry, RT-PCR, LC-MS, OCR and ECAR detection, and Western Blot analysis were performed to characterize the neuroprotective effects of J24335 on PC12 cells and its potential mechanism. Behavioral tests and immunohistochemistry were used to evaluate behavioral changes and brain lesions in mice. Moreover, bioinformatics was employed to assess the drug-likeness of J24335 and screen its potential targets. J24335 attenuated the degradation of mitochondrial membrane potential and enhanced glucose metabolism and mitochondrial biosynthesis to ameliorate 6-OHDA-induced mitochondrial dysfunction. Animal behavioral tests demonstrated that J24335 markedly improved motor function and loss of TH-positive neurons and dopaminergic nerve fibers, and contributed to an increase in the levels of dopamine and its metabolites in brain tissue. The activation of both the CREB/PGC-1α/NRF-1/TFAM and PKA/Akt/GSK-3ß pathways was a major contributor to the neuroprotective effects of J24335. Furthermore, bioinformatics predictions revealed that J24335 is a low toxicity and highly BBB permeable compound targeting 8 key genes (SRC, EGFR, ERBB2, SYK, MAPK14, LYN, NTRK1 and PTPN1). Molecular docking suggested a strong and stable binding between J24335 and the 8 core targets. Taken together, our results indicated that J24335, as a multi-targeted neuroprotective agent with promising therapeutic potential for PD, could protect against 6-OHDA-induced neurotoxicity via two potential pathways in mice and PC12 cells.


Assuntos
Doenças Mitocondriais , Doenças Neurodegenerativas , Fármacos Neuroprotetores , Humanos , Ratos , Camundongos , Animais , Oxidopamina/farmacologia , Fármacos Neuroprotetores/farmacologia , Fármacos Neuroprotetores/uso terapêutico , Células PC12 , Glicogênio Sintase Quinase 3 beta , Simulação de Acoplamento Molecular , Dopamina , Neurônios Dopaminérgicos
14.
Nat Commun ; 15(1): 328, 2024 Jan 06.
Artigo em Inglês | MEDLINE | ID: mdl-38184609

RESUMO

Membrane-camouflaged nanomedicines often suffer from reduced efficacy caused by membrane protein disintegration and spatial disorder caused by separation and reassembly of membrane fragments during the coating process. Here we show that intracellularly gelated macrophages (GMs) preserve cell membrane structures, including protein content, integration and fluidity, as well as the membrane lipid order. Consequently, in our testing GMs act as cellular sponges to efficiently neutralize various inflammatory cytokines via receptor-ligand interactions, and serve as immune cell-like carriers to selectively bind inflammatory cells in culture medium, even under a flow condition. In a rat model of collagen-induced arthritis, GMs alleviate the joint injury, and suppress the overall arthritis severity. Upon intravenous injection, GMs efficiently accumulate in the inflammatory lungs of acute pneumonia mice for anti-inflammatory therapy. Conveniently, GMs are amenable to lyophilization and can be stored at ambient temperatures for at least 1 month without loss of integrity and bio-activity. This intracellular gelation technology provides a universal platform for targeted inflammation neutralization treatment.


Assuntos
Artrite Experimental , Ratos , Camundongos , Animais , Artrite Experimental/tratamento farmacológico , Meios de Cultura , Citocinas , Liofilização , Macrófagos
15.
J Cardiovasc Magn Reson ; 26(1): 100007, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38211509

RESUMO

"Cases of SCMR" is a case series on the SCMR website (https://www.scmr.org) for the purpose of education. The cases reflect the clinical presentation, and the use of cardiovascular magnetic resonance (CMR) in the diagnosis and management of cardiovascular disease. The 2022 digital collection of cases are presented in this manuscript.


Assuntos
Doenças Cardiovasculares , Valor Preditivo dos Testes , Humanos , Doenças Cardiovasculares/diagnóstico por imagem , Doenças Cardiovasculares/terapia , Pessoa de Meia-Idade , Feminino , Masculino , Idoso , Imageamento por Ressonância Magnética , Adulto , Prognóstico , Adulto Jovem
16.
J Natl Cancer Inst ; 116(4): 497-505, 2024 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-38175791

RESUMO

Health-related social needs are prevalent among cancer patients; associated with substantial negative health consequences; and drive pervasive inequities in cancer incidence, severity, treatment choices and decisions, and outcomes. To address the lack of clinical trial evidence to guide health-related social needs interventions among cancer patients, the National Cancer Institute Cancer Care Delivery Research Steering Committee convened experts to participate in a clinical trials planning meeting with the goal of designing studies to screen for and address health-related social needs among cancer patients. In this commentary, we discuss the rationale for, and challenges of, designing and testing health-related social needs interventions in alignment with the National Academy of Sciences, Engineering, and Medicine 5As framework. Evidence for food, housing, utilities, interpersonal safety, and transportation health-related social needs interventions is analyzed. Evidence regarding health-related social needs and delivery of health-related social needs interventions differs in maturity and applicability to cancer context, with transportation problems having the most maturity and interpersonal safety the least. We offer practical recommendations for health-related social needs interventions among cancer patients and the caregivers, families, and friends who support their health-related social needs. Cross-cutting (ie, health-related social needs agnostic) recommendations include leveraging navigation (eg, people, technology) to identify, refer, and deliver health-related social needs interventions; addressing health-related social needs through multilevel interventions; and recognizing that health-related social needs are states, not traits, that fluctuate over time. Health-related social needs-specific interventions are recommended, and pros and cons of addressing more than one health-related social needs concurrently are characterized. Considerations for collaborating with community partners are highlighted. The need for careful planning, strong partners, and funding is stressed. Finally, we outline a future research agenda to address evidence gaps.


Assuntos
Pesquisa sobre Serviços de Saúde , Neoplasias , Humanos , Confidencialidade , Neoplasias/terapia , Ensaios Clínicos como Assunto
17.
Clin Gastroenterol Hepatol ; 22(4): 760-767.e1, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37544418

RESUMO

BACKGROUND: The overall value of hepatocellular carcinoma screening is defined by the balance of benefits and harms. Studies have only reported physical harms with none describing financial harms. METHODS: We conducted a multicenter pragmatic randomized clinical trial of hepatocellular carcinoma screening outreach among 2872 patients with cirrhosis from March 2018 to April 2021. Patients with positive or indeterminate results and matched patients with negative results completed surveys at baseline and at follow-up measuring financial harms via Cancer Self-Administered Questionnaire and financial burden via Comprehensive Score for Financial Toxicity Functional Assessment of Chronic Illness Therapy. Univariable and multivariable longitudinal regression analyses were performed to compare changes in financial harms across groups: true positive, true negative, false positive, and indeterminate. Semistructured interviews were conducted in a subset of patients, sampled by center and test result. RESULTS: Of 311 patients who completed at least 1 follow-up survey (75% response rate), 37 had true positive, 133 true negative, 64 false positive, and 77 indeterminate results. Financial harms increased in true positive and false positive patients with no significant changes noted among those with true negative or indeterminate results. At follow-up, 21.8% of patients reported moderate-severe financial burden, which was not significantly associated with test results. Semistructured interviews revealed variation in the frequency and severity of financial harms based on test results, with increased harm in those with false positive results. CONCLUSIONS: Financial harms of hepatocellular carcinoma screening vary by test result and can pose a barrier that must be considered when determining the optimal screening program.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Carcinoma Hepatocelular/diagnóstico , Neoplasias Hepáticas/diagnóstico , Estresse Financeiro , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico
18.
Hepatology ; 79(1): 107-117, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-37401857

RESUMO

BACKGROUND AND AIMS: The value of HCC surveillance is determined by the balance between benefits and harms; however, no studies have enumerated psychological harms. APPROACH AND RESULTS: We fielded surveys measuring psychological harms to patients with cirrhosis in a multicenter randomized trial of HCC surveillance outreach. All patients with positive or indeterminate surveillance results and matched patients with negative results were invited to complete surveys measuring (1) depression through the Patient Health Questionnaire-ninth version, (2) anxiety through State-Trait Anxiety Inventory, (3) HCC-specific worry through Psychological Consequences Questionnaire, and (4) decisional regret. Patients were classified into 4 groups: true positive (TP), false positive (FP), indeterminate, and true negative (TN). Multivariable longitudinal regression analysis using the generalized estimating equation method was performed to compare the means of measures across groups. We conducted 89 semistructured interviews in a subset of patients stratified by health system and test results. Of 2872 patients in the trial, 311 completed 1+ follow-up survey (63 FP, 77 indeterminate, 38 TP, and 133 TN). Moderate depression decreased in TN patients, increased in TP, and had intermittent but mild increases in those with FP and indeterminate results. High anxiety temporarily increased in patients with TP results but resolved over time and was stable in those with FP and indeterminate results. Decisional regret was low and did not differ across groups. In semistructured interviews, patients reported apprehension, anxiety, emotional distress, and coping related to HCC surveillance. CONCLUSIONS: Psychological harms of HCC surveillance appear mild but differ by test result. Future research should determine the impact of psychological harms on the value of HCC surveillance programs.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Carcinoma Hepatocelular/epidemiologia , Neoplasias Hepáticas/epidemiologia , Cirrose Hepática/complicações , Ansiedade , Inquéritos e Questionários
19.
Inflammopharmacology ; 32(1): 393-404, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37429999

RESUMO

Medulla Tetrapanacis (MT) is a commonly used herb to promote lactation and manage mastitis in lactating mothers. However, its anti-inflammatory and anti-bacterial effects are currently unknown. We hypothesized that MT water extract possesses anti-inflammatory and anti-bacterial effects by modulating macrophage polarization to reduce the release of inflammatory mediators and phagocytosis via inactivation of MAPKs pathways. The chemical composition of the MT water extract was analyzed by UPLC-Orbitrap-mass spectrometry. The anti-inflammatory and anti-bacterial properties of the MT water extract were examined using LPS-stimulated inflammation and Staphylococcus aureus infection model in RAW 264.7 cells, respectively. The underlying mechanism of action of the MT water extract was also investigated. We identified eight compounds by UPLC-Orbitrap-mass spectrometry that are abundant within the MT water extract. MT water extract significantly suppressed LPS-induced nitric oxide, TNF-α and IL-6 secretion in RAW 264.7 cells which was accompanied by the promotion of macrophage polarization from pro-inflammatory towards anti-inflammatory phenotypes. MT water extract significantly suppressed the LPS-induced MAPK activation. Finally, MT water extract decreased the phagocytic capacity of the RAW 264.7 cells against S. aureus infection. MT water extract could suppress LPS-induced inflammation by promoting macrophages towards an anti-inflammatory phenotype. In addition, MT also inhibited the growth of S. aureus.


Assuntos
Lactação , Lipopolissacarídeos , Feminino , Humanos , Lipopolissacarídeos/farmacologia , Staphylococcus aureus , Transdução de Sinais , Inflamação/tratamento farmacológico , Macrófagos , Anti-Inflamatórios/farmacologia
20.
J Heart Lung Transplant ; 43(5): 745-754, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38141894

RESUMO

BACKGROUND: In pediatric heart transplant (PHT), cardiac catheterization with endomyocardial biopsy (EMB) is standard for diagnosing acute rejection (AR) and cardiac allograft vasculopathy (CAV) but is costly and invasive. OBJECTIVES: To evaluate the ability of cardiac magnetic resonance (CMR) to noninvasively identify differences in PHT patients with AR and CAV. METHODS: Patients were enrolled at three children's hospitals. Data were collected from surveillance EMB or EMB for-cause AR. Patients were excluded if they had concurrent diagnoses of AR and CAV, CMR obtained >7days from AR diagnosis, they had EMB negative AR, or could not undergo contrasted, unsedated CMR. Kruskal-Wallis test was used to compare groups: (1) No AR or CAV (Healthy), (2) AR, (3) CAV. Wilcoxon rank-sum test was used for pairwise comparisons. RESULTS: Fifty-nine patients met inclusion criteria (median age 17years [IQR 15-19]) 10 (17%) with AR, and 11 (19%) with CAV. AR subjects had worse left ventricular ejection fraction compared to Healthy patients (p = 0.001). Global circumferential strain (GCS) was worse in AR (p = 0.054) and CAV (p = 0.019), compared to Healthy patients. ECV, native T1, and T2 z-scores were elevated in patients with AR. CONCLUSIONS: CMR was able to identify differences between CAV and AR. CAV subjects had normal global function but abnormal GCS which may suggest subclinical dysfunction. AR patients have abnormal function and tissue characteristics consistent with edema (elevated ECV, native T1 and T2 z-scores). Characterization of CMR patterns is critical for the development of noninvasive biomarkers for PHT and may decrease dependence on EMB.


Assuntos
Rejeição de Enxerto , Transplante de Coração , Imagem Cinética por Ressonância Magnética , Humanos , Transplante de Coração/efeitos adversos , Masculino , Feminino , Adolescente , Imagem Cinética por Ressonância Magnética/métodos , Adulto Jovem , Aloenxertos , Doença Aguda , Estudos Retrospectivos , Criança , Miocárdio/patologia , Doença da Artéria Coronariana/etiologia , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/diagnóstico
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