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1.
Phys Rev Lett ; 130(2): 021601, 2023 Jan 13.
Artigo em Inglês | MEDLINE | ID: mdl-36706419

RESUMO

We compute the conservative two-body Hamiltonian of a compact binary system with a spinning black hole through O(G^{3}) to all orders in velocity, including linear and quadratic spin terms. To obtain our results we calculate the classical limit of the two-loop amplitude for the scattering of a massive scalar particle with a massive spin-1 particle minimally coupled to gravity. We employ modern scattering amplitude and loop integration techniques, in particular numerical unitarity, integration-by-parts identities, and the method of regions. The conservative potential in terms of rest-frame spin vectors is extracted by matching to a nonrelativistic effective field theory. We also apply the Kosower-Maybee-O'Connell (KMOC) formalism to calculate the impulse in the covariant spin formalism directly from the amplitude. We work systematically in conventional dimensional regularization and explicitly evaluate all divergent integrals that appear in full- and effective-theory amplitudes, as well as in the phase-space integrals that arise in the KMOC formalism.

2.
Mediators Inflamm ; 2023: 9330439, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36643585

RESUMO

In this study, we examined the effect of the GP130-targeting molecule, LMT-28, on lipopolysaccharide- (LPS-) induced bone resorption around implants in diabetic models using in vitro and rat animal experiments. First, LMT-28 was added to osteoblasts stimulated by LPS and advanced glycation end products (AGEs), and nuclear factor-κB receptor-activating factor ligand (RANKL) and associated pathways were evaluated. Then, LMT-28 was administered by gavage at 0.23 mg/kg once every 5 days for 2 weeks to type 2 diabetic rats with peri-implantitis induced by LPS injection and silk ligature. The expression of IL-6 and RANKL was evaluated by immunohistochemistry, and the bone resorption around implants was evaluated by microcomputed tomography. The results showed that LMT-28 downregulated the expression of RANKL through the JAK2/STAT3 signaling pathway in osteoblasts stimulated by LPS and AGEs, reduced bone resorption around implants with peri-implantitis, decreased the expression of IL-6 and RANKL, and decreased osteoclast activity in type 2 diabetic rats. This study confirmed the ability of LMT-28 to reduce LPS-induced bone resorption around implants in diabetic rats.


Assuntos
Reabsorção Óssea , Diabetes Mellitus Experimental , Diabetes Mellitus Tipo 2 , Peri-Implantite , Animais , Ratos , Reabsorção Óssea/metabolismo , Receptor gp130 de Citocina , Diabetes Mellitus Experimental/tratamento farmacológico , Diabetes Mellitus Experimental/metabolismo , Diabetes Mellitus Tipo 2/metabolismo , Produtos Finais de Glicação Avançada/metabolismo , Interleucina-6/metabolismo , Janus Quinase 2/metabolismo , Lipopolissacarídeos , Osteoclastos/metabolismo , Peri-Implantite/metabolismo , Ligante RANK/metabolismo , Transdução de Sinais , Microtomografia por Raio-X
3.
Phys Rev Lett ; 128(16): 161103, 2022 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-35522489

RESUMO

We complete the calculation of conservative two-body scattering dynamics at fourth post-Minkowskian order, i.e., O(G^{4}) and all orders in velocity, including radiative contributions corresponding to the tail effect in general relativity. As in previous calculations, we harness powerful tools from the modern scattering amplitudes program including generalized unitarity, the double copy, and advanced multiloop integration methods, in combination with effective field theory. The classical amplitude involves complete elliptic integrals, and polylogarithms with up to transcendental weight 2. Using the amplitude-action relation, we obtain the radial action directly from the amplitude, and match the known overlapping terms in the post-Newtonian expansion.

4.
Ann Clin Microbiol Antimicrob ; 21(1): 38, 2022 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-36038932

RESUMO

BACKGROUND: Antibiotic-resistant Gram-negative bacteria are becoming a major public health threat such as the important opportunistic pathogen Pseudomonas aeruginosa (P. aeruginosa). The present study investigated enhancement of the linezolid spectrum, which is normally used to treat Gram-positive bacteria, at inhibiting P. aeruginosa growth. METHODS: The checkerboard test or time-kill assay were carried out to determine the antibacterial effects of linezolid in cooperation with polymyxin B octapeptide PBOP (LP) against P. aeruginosa based on in vitro model. The protective effect of LP against P. aeruginosa infection was assessed based on a Caenorhabditis elegans (C. elegans) model. RESULTS: The synergistic activity and antibacterial effects were significantly increased against P. aeruginosa by LP treatment, while linezolid and PBOP as monotherapies exhibited no remarkably bactericidal activity against the clinical strains. Additionally, LP treatment modified biofilm production, morphology, swimming motility of P. aeruginosa, and protected C. elegans from P. aeruginosa infection. CONCLUSIONS: This research demonstrates that LP combination has significant synergistic activity against P. aeruginosa, and PBOP is potential to be an activity enhancer. Notably, this strategy improved the antibacterial activity spectrum of linezolid and other anti-Gram-positive agents and represents an effective choice to surmount the antibiotic resistance of bacteria in the long term.


Assuntos
Caenorhabditis elegans , Pseudomonas aeruginosa , Animais , Antibacterianos/farmacologia , Sinergismo Farmacológico , Humanos , Linezolida/farmacologia , Testes de Sensibilidade Microbiana , Polimixina B/análogos & derivados , Polimixina B/farmacologia
5.
Sleep Breath ; 26(4): 1829-1836, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35059980

RESUMO

PURPOSE: Few studies have yet examined sleep quality among puerperal women during the coronavirus disease 2019 (COVID-19) pandemic. This cross-sectional study aimed to compare the sleep quality of puerperal women before and during the COVID-19 pandemic in Lanzhou, China. The study exploreed the factors that affect sleep quality among puerperal women. METHODS: The study population comprised puerperal women who went to the obstetric department of the Gansu Provincial Maternity and Childcare Hospital on the 42nd day after childbirth. Sleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI). Data were collected by doctors in the obstetric department before the COVID-19 pandemic (Oct.-Dec. 2019) and during the COVID-19 pandemic (Feb.-Apr. 2020) in China. Multiple linear regressions were used to examine the association between the sleep quality of puerperal women and COVID-19 and to identify factors that affect the total PSQI scores. RESULTS: In 2019, 546 puerperal women were assessed compared with 655 who were assessed in 2020. Compared with before COVID-19, the total PSQI scores of puerperal women improved during the COVID-19 pandemic. In addition, the influencing factors of sleep quality among puerperal women were the pandemic itself, age, conception method, and postpartum depression (PPD). CONCLUSIONS: In contrast with other studies, there was no evidence for worsening sleep quality of puerperal women during the COVID-19 pandemic in Lanzhou, China. Puerperal women who underwent assisted pregnancy or developed PPD were more likely to experience poor sleep quality.


Assuntos
COVID-19 , Pandemias , Humanos , Feminino , Gravidez , Estudos Transversais , Qualidade do Sono , China/epidemiologia , Sono
6.
Phys Rev Lett ; 126(20): 201602, 2021 May 21.
Artigo em Inglês | MEDLINE | ID: mdl-34110218

RESUMO

We compute the total radiated momentum carried by gravitational waves during the scattering of two spinless black holes at the lowest order in Newton's constant, O(G^{3}), and all orders in velocity. By analytic continuation into the bound state regime, we obtain the O(G^{3}) energy loss in elliptic orbits. This provides an essential step toward the complete understanding of the third-post-Minkowskian binary dynamics. We employ the formalism of Kosower, Maybee, and O'Connell (KMOC), which relates classical observables to quantum scattering amplitudes, and derive the relevant integrands using generalized unitarity. The subsequent phase-space integrations are performed via the reverse unitarity method familiar from collider physics, using differential equations to obtain the exact velocity dependence from near-static boundary conditions.

7.
Phys Rev Lett ; 126(17): 171601, 2021 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-33988437

RESUMO

Using scattering amplitudes, we obtain the potential contributions to conservative binary dynamics in general relativity at fourth post-Minkowskian order O(G^{4}). As in previous lower-order calculations, we harness powerful tools from the modern scattering amplitudes program including generalized unitarity, the double copy, and advanced multiloop integration methods, in combination with effective field theory. The classical amplitude involves polylogarithms with up to transcendental weight two and elliptic integrals. We derive the radial action directly from the amplitude, and determine the corresponding Hamiltonian in isotropic gauge. Our results are in agreement with known overlapping terms up to sixth post-Newtonian order, and with the probe limit. We also determine the post-Minkowskian energy loss from radiation emission at O(G^{3}) via its relation to the tail effect.

8.
Arch Virol ; 166(9): 2387-2397, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34114139

RESUMO

Influenza is an acute viral respiratory disease that can also cause gastroenteritis-like symptoms, such as abdominal pain, nausea, vomiting, and diarrhea. Immune dysfunction of adipose tissue is involved in the occurrence and prognosis of influenza viral pneumonia. In this study, we analyzed intestinal and adipose immune responses in mice infected with influenza virus and found that the impairment of intestinal and adipose immunity to influenza virus infection could be reversed by treatment with puerarin, a medicinal compound isolated from Pueraria lobata (called "gegen" in Chinese). We found that the lungs, small intestines (duodenum, ileum, jejunum) and large intestines (colon and rectum) of infected mice showed obvious inflammatory lesions, with significantly increased levels of virus, inflammatory cytokines (interleukin [IL]-6, IL-17, and tumor necrosis factor-α), Toll-like receptors 3, 4, and 9, and integrin αvß3 and α4, and a decreased level of secreted IgA compared to the normal control group (NC) (P < 0.05-0.001). Influenza virus infected mesenteric lymph nodes and adipose tissue, and adipokines (leptin, visfatin, "chemerin", and adiponectin) of lung and mesenteric adipose tissue were dysregulated. Puerarin treatment reversed the impairment of the intestinal and adipose immune responses in mice infected with influenza virus. Our findings suggest that influenza virus can infect adipose tissue and lead to intestinal adipose immune dysfunction in normal-weight mice and that the impairment of the intestinal and adipose immune response to influenza virus infection can be reversed by puerarin treatment.


Assuntos
Tecido Adiposo/imunologia , Imunidade/efeitos dos fármacos , Intestinos/imunologia , Infecções por Orthomyxoviridae/tratamento farmacológico , Infecções por Orthomyxoviridae/imunologia , Vasodilatadores/farmacologia , Animais , Citocinas/metabolismo , Feminino , Humanos , Imunoglobulina A Secretora , Vírus da Influenza A Subtipo H1N1 , Influenza Humana/imunologia , Intestinos/patologia , Intestinos/virologia , Isoflavonas , Pulmão/patologia , Pulmão/virologia , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Nicotinamida Fosforribosiltransferase , Pneumonia , Pueraria/química , RNA Viral , Carga Viral
9.
BMC Public Health ; 21(1): 1130, 2021 06 12.
Artigo em Inglês | MEDLINE | ID: mdl-34118901

RESUMO

BACKGROUND: This study aims to examine the effects of the request and purchase of Television (TV) advertised foods on children's dietary intake, overweight and obesity in China. METHODS: Data from 1417 children (aged 6-17 years) in the 2011 China Health and Nutrition Survey were analysed. The request and purchase of TV advertised foods were assessed through the frequency of children's requests to purchase TV advertised foods and the frequency of parents' purchases of these advertised foods, as well as the frequency of children's purchases of TV advertised foods. The height and weight of children were measured. Logistic regression models were used to identify the associations between the request and purchase of TV advertised foods and overweight/obesity of children. RESULTS: The request and purchase of TV advertised foods were positively associated with children's dietary intake of energy, protein, fat and carbohydrates. After adjusting for potential confounding factors, children's request and purchase of TV advertised foods and parent's purchase of TV advertised foods were positively associated with children's overweight/obesity: odds ratio (OR) and 95% confidence interval (CI) for overweight/obesity were: 1.46 (1.01-2.11) for children purchasing advertised foods ≥1 time/week, 1.59 (1.15-2.18) for parents purchasing advertised foods for their children ≥1 time/week and 1.39 (1.00-1.95) for children requesting advertised foods ≥1 time/week. CONCLUSIONS: The request and purchase of TV advertised foods are associated with children's dietary intake. Moreover, the request and purchase of TV advertised foods can increase the risk of overweight and obesity of children. Health education involving children's request and purchase of TV advertised foods and parents' purchase of TV advertised foods should be considered in China.


Assuntos
Publicidade , Televisão , Criança , China/epidemiologia , Ingestão de Alimentos , Humanos , Obesidade/epidemiologia
10.
Reprod Health ; 18(1): 193, 2021 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-34593017

RESUMO

BACKGROUND: With the prevalence of infertility increasing every year around the world, it has seriously impacted the individual quality of family and social life. Anxiety is one of the most prevalent anxiety disorders among infertile patients. After the two-child policy, whether it affected the prevalence of anxiety is controversial. This study aimed to determine the prevalence of anxiety and its potential risk factors among Chinese infertile women after the enforcement of 'two-child policy'. METHODS: This cross-sectional study included 693 infertile patients in a reproductive medical center in Chongqing, China, between February 2016 and December 2018. Data was collected by Self-filling questionnaires including basic demographic information and the Generalized Anxiety Disorder-7 (GAD-7). SPSS statistical software (IBM SPSS version 25) was used to analyse the obtained data. Descriptive analysis was used to describe basic information and anxiety scores, the chi-square test and binary logistic regression were used to analyse the relationship between anxiety and other variables. RESULTS: The prevalence of anxiety among total infertile patients was 21.8%, and its 23.5% among first-child infertile patients (FI), and 18.4% among second-child infertile patients (SI) respectively (P > 0.05). Binary logistic regression showed that patients with lower education levels were more likely to have anxiety (P < 0.01). Patients with middle salary incomes were more likely to have anxiety (OR = 1.860, 95% CI: 1.068-3.238). Oral contraception taking history (OR = 1.778, 95% CI: 1.186-2.667), and history of allergy (OR = 2.098, 95% CI: 1.219-3.612) were associated with anxiety. CONCLUSIONS: Under the full liberalization of the "two-child policy", the total prevalence of anxiety among Chinese infertile female is comparatively high. Low education levels, middle incomes, oral contraception taking and allergy history can be the related risk factors of anxiety. We promote that all infertile patients should be evaluated for the prevalence of anxiety, especially those with potential risks, and receive consultant or targeted treatment when needed.


Assuntos
Infertilidade Feminina , Ansiedade/epidemiologia , Transtornos de Ansiedade/epidemiologia , China/epidemiologia , Estudos Transversais , Feminino , Humanos , Infertilidade Feminina/epidemiologia , Políticas , Prevalência
11.
Phytother Res ; 35(1): 324-336, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32757226

RESUMO

Puerarin is a major isofiavone compound isolated from the root of Pueraria lobata. It was reported that puerarin had antioxidant, antiinflammatory, antitumor, cholesterol lowering, liver protective, and neuroprotective properties. However, few studies have explored the antiviral effect of puerarin and its target mechanism related to influenza virus. Here, the antiinfluenza activity of puerarin in vitro and in vivo and its mode of action on the potential inhibition of neuraminidase (NA) were investigated. Puerarin displayed an inhibitory effect on A/FM/1/1947(H1N1) (EC50 = 52.06 µM). An indirect immunofluorescence assay indicated that puerarin blocked the nuclear export of viral NP. The inhibition of NA activity confirmed that puerarin can block the release of newly formed virus particles from infected cells. Puerarin (100 and 200 mg/kg/d) exhibited effective antiviral activity in mice, conferring 50% and 70% protection from death against H1N1, reducing virus titers, and effectively alleviating inflammation in the lungs. The molecular docking results showed that puerarin had a strong binding affinity with NA from H1N1. The results of the molecular dynamics simulation revealed that puerarin had higher stable binding at the 150-loop region of the NA protein. These results demonstrated that puerarin acts as a NA blocker to inhibit influenza A virus both in cellular and animal models. Thus, puerarin has potential utility for the treatment of the influenza virus infection.


Assuntos
Antivirais/farmacologia , Isoflavonas/farmacologia , Neuraminidase/antagonistas & inibidores , Infecções por Orthomyxoviridae/tratamento farmacológico , Proteínas Virais/antagonistas & inibidores , Animais , Cães , Feminino , Vírus da Influenza A Subtipo H1N1/efeitos dos fármacos , Células Madin Darby de Rim Canino , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Simulação de Acoplamento Molecular , Carga Viral/efeitos dos fármacos
12.
Eur J Anaesthesiol ; 38(3): 265-274, 2021 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-33399384

RESUMO

BACKGROUND: Moderate-to-severe pain exists in the early postoperative period after laparoscopic renal surgery. OBJECTIVE: We investigated the analgesic effect of quadratus lumborum block (QLB) via two approaches in patients undergoing laparoscopic renal nephrectomy. DESIGN: A randomised controlled trial. SETTING: An academic tertiary care hospital in Beijing, China. PARTICIPANTS: Ninety-six patients aged 18 to 70 years who were scheduled for elective laparoscopic radical or partial nephrectomy. INTERVENTIONS: Eligible patients were allocated randomly to a control group (no block), lateral QLB group or posterior QLB group. Ultrasound-guided QLB was performed via either the lateral or posterior approach with 30 ml of 0.4% ropivacaine before surgery. MAIN OUTCOME MEASURES: The primary outcome was sufentanil equivalent consumption within 24 h. Among secondary outcomes, somatic and visceral pain intensity at rest and on coughing were assessed with a numerical rating scale (where 0 = no pain and 10 = the worst pain) until 24 h postoperatively. RESULTS: Sufentanil equivalent consumption did not differ among the three groups (118 ±â€Š36 µg in the control group, 115 ±â€Š47 µg in the lateral QLB group and 119 ±â€Š40 µg in the posterior QLB group; P = 0.955). However, both somatic (lateral QLB vs. control, median difference -1, P < 0.001 at rest and -2 to -1, P < 0.001 on coughing; posterior QLB vs. control, -1, P < 0.001 at rest and -2 to -1, P < 0.001 on coughing) and visceral pain scores (lateral QLB vs. control, -1 to 0, P < 0.001 at rest and -1, P < 0.001 on coughing; posterior QLB vs. control, -1 to 0, P < 0.001 at rest and -2 to -1, P < 0.001 on coughing) were significantly lower in the two QLB groups than in the control group. CONCLUSION: For patients undergoing laparoscopic renal surgery, a pre-operative single-shot QLB via the lateral or posterior approach did not decrease opioid consumption, but improved analgesia for up to 24 h after surgery. TRIAL REGISTRATION: www.chictr.org.cn identifier: ChiCTR1800019883.


Assuntos
Laparoscopia , Dor Pós-Operatória , Adolescente , Adulto , Idoso , Anestésicos Locais , China/epidemiologia , Humanos , Pessoa de Meia-Idade , Dor Pós-Operatória/diagnóstico , Dor Pós-Operatória/etiologia , Dor Pós-Operatória/prevenção & controle , Ultrassonografia de Intervenção , Adulto Jovem
13.
Pain Med ; 21(12): 3539-3547, 2020 12 25.
Artigo em Inglês | MEDLINE | ID: mdl-33111950

RESUMO

OBJECTIVE: To evaluate the effect of multilevel single-shot thoracic paravertebral blockade (PVB) on the occurrence of chronic postsurgical pain (CPSP) in patients undergoing breast cancer surgery. DESIGN: A randomized controlled trial with two parallel groups. SETTING: A tertiary hospital. METHODS: Patients scheduled for breast cancer surgery were randomized to receive either ultrasound-guided multilevel single-shot PVB from T2 to T5 (the PVB group) or nothing (the control group). Surgery was then performed under general anesthesia. Patients were followed up for 12 months after surgery. The primary end point was incidence of CPSP at six months after surgery. RESULTS: A total of 218 patients were enrolled and randomized; of these, 208 and 204 completed six- and 12-month follow-up, respectively. The incidence of CPSP at six months was significantly lower in the PVB group (12.5% [13/104]) than in the control group (24.0% [25/104], relative risk = 0.52, 95% CI = 0.28-0.96, P = 0.031). Pain scores within 48 hours both at rest and with movement were lower in the PVB group than the control group (P = 0.006 and P < 0.001, respectively). The percentages of patients with neuropathic pain were also lower in the PVB group than the control group at both six and 12 months after surgery (P = 0.016 and 0.028, respectively). Adverse events did not differ between groups. CONCLUSIONS: For patients undergoing breast cancer surgery, multilevel single-shot PVB reduces the incidence of CPSP at six months; it also improves early postoperative analgesia and reduces neuropathic pain at six and 12 months after surgery.


Assuntos
Neoplasias da Mama , Bloqueio Nervoso , Neoplasias da Mama/cirurgia , Humanos , Mastectomia , Dor Pós-Operatória/tratamento farmacológico
14.
Phys Rev Lett ; 122(12): 121603, 2019 Mar 29.
Artigo em Inglês | MEDLINE | ID: mdl-30978096

RESUMO

We compute the symbol of the two-loop five-point scattering amplitude in N=4 supersymmetric Yang-Mills theory, including its full color dependence. This requires constructing the symbol of all two-loop five-point nonplanar massless master integrals, for which we give explicit results.

15.
Phys Rev Lett ; 122(20): 201603, 2019 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-31172785

RESUMO

We present the amplitude for classical scattering of gravitationally interacting massive scalars at third post-Minkowskian order. Our approach harnesses powerful tools from the modern amplitudes program such as generalized unitarity and the double-copy construction, which relates gravity integrands to simpler gauge-theory expressions. Adapting methods for integration and matching from effective field theory, we extract the conservative Hamiltonian for compact spinless binaries at third post-Minkowskian order. The resulting Hamiltonian is in complete agreement with corresponding terms in state-of-the-art expressions at fourth post-Newtonian order as well as the probe limit at all orders in velocity. We also derive the scattering angle at third post-Minkowskian order and find agreement with known results.

16.
BMC Anesthesiol ; 19(1): 186, 2019 10 18.
Artigo em Inglês | MEDLINE | ID: mdl-31627728

RESUMO

BACKGROUND: Ultrasound-guided lateral transversus abdominis plane (TAP) block can provide definite analgesia to the anterior abdominal wall. However, whether this method is useful in renal surgery through the lateral abdominal wall pathway remains unknown. The study aimed to evaluate the analgesic efficacy of lateral TAP block for retroperitoneoscopic partial or radical nephrectomy. METHOD: In this prospective, randomized, double-blind, placebo-controlled trial, eligible patients were randomized into two groups. After anaesthesia induction, ultrasound-guided lateral TAP block was performed with either 30 ml of 0.4% ropivacaine (Group T) or an equivalent volume of normal saline (Group C). The primary outcomes were opioid consumption during surgery and in the first 24 h after surgery. Secondary outcomes included postsurgical pain intensity immediately awakening from anaesthesia and at 0.5, 1, 2, 6, 12, and 24 h after surgery, as well as recovery variables including the incidence of postoperative nausea and vomiting (PONV), sleep quality, time to first ambulation, drainage and length of hospital stay. RESULTS: A total of 104 patients were enrolled and randomized (53 in Group T and 51 in Group C). Laparoscopic surgery was converted to open surgery in one patient of Group T; this patient was excluded from the outcome analysis. The opioid consumption during surgery (intravenous morphine equivalent dose: median 35.0 mg [interquartile range 18.0, 49.6] in Group C vs. 40.3 mg [20.9, 59.0] in Group T, P = 0.281) and in the first 24 h after surgery (10.8 mg [7.8, 21.7] in Group C vs. 13.2 mg [8.0, 26.6] in Group T, P = 0.311) did not differ significantly between groups. There were no significant differences between groups regarding the pain intensity at all time points after surgery and the recovery variables (all P > 0.05). CONCLUSIONS: Our results showed that, in patients undergoing retroperitoneoscopic renal surgery, preoperative lateral TAP did not decrease intra- and postoperative opioid consumption, nor did it relieve pain intensity or promote postoperative recovery in the first 24 h after surgery. However, the trial might be underpowered. TRIAL REGISTRATION: This study was registered on November 4, 2017, in the Chinese Clinical Trail Registry with the identification number ChiCTR-INR-17013244 .


Assuntos
Laparoscopia/métodos , Nefrectomia/métodos , Bloqueio Nervoso/métodos , Dor Pós-Operatória/prevenção & controle , Músculos Abdominais , Adulto , Analgésicos Opioides/administração & dosagem , Anestésicos Locais/administração & dosagem , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Náusea e Vômito Pós-Operatórios/epidemiologia , Estudos Prospectivos , Ropivacaina/administração & dosagem , Ultrassonografia de Intervenção/métodos
17.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 41(4): 548-555, 2019 Aug 30.
Artigo em Zh | MEDLINE | ID: mdl-31484620

RESUMO

Leukemia is a disease featured by the malignant proliferation of hematopoietic stem cells or progenitor cells in the blood system.While chemotherapy remains its mainstream treatment,disease relapse and drug resistance are still challenging problems.As one of the epigenetic mechanisms,histone methylation is involved in cell proliferation,differentiation,and apoptosis by regulating gene transcription.Recent studies have found that the histone demethylase lysine-specific demethylase 6A(KDM6A),also known as ubiquitously transcribed tetratricopeptide repeat on chromosome X(UTX),is closely related to the occurrence of a variety of tumors,especially leukemia.KDM6A activates gene expression by demethylating H3K27me3 to H3K27me2 or H3K27me1.Besides,KDM6A can regulate the activation of the target gene transcription through its non-demethylase functions.It can serve as the subunit of complex of proteins associated with Set1,thus getting involved in the regulation of H3K4me1.It can be combined with yeast mating type conversion/sucrose unfermented complex family to promote the formation of an open chromatin conformation.Finally,it can promote the production of H3K27ac.This article reviews the recent studies on the structure and biological activity of histone demethylase KDM6A(UTX)and its role in treating leukemia,thus providing a new research direction for targeted treatment of leukemia.


Assuntos
Epigênese Genética , Histona Desmetilases/metabolismo , Leucemia/enzimologia , Lisina , Proteínas Nucleares/metabolismo , Histonas , Humanos , Leucemia/terapia
18.
Phys Rev Lett ; 121(12): 121603, 2018 Sep 21.
Artigo em Inglês | MEDLINE | ID: mdl-30296163

RESUMO

The planar scattering amplitudes of N=4 super-Yang-Mills theory display symmetries and structures which underlie their relatively simple analytic properties such as having only logarithmic singularities and no poles at infinity. Recent work shows in various nontrivial examples that the simple analytic properties of the planar sector survive into the nonplanar sector, but this has yet to be understood from underlying symmetries. Here, we explicitly show that for an infinite class of nonplanar integrals that covers all subleading-color contributions to the two-loop four- and five-point amplitudes of N=4 super-Yang-Mills theory, symmetries analogous to dual conformal invariance exist. A natural conjecture is that this continues to all amplitudes of the theory at any loop order.

19.
Nutrients ; 16(9)2024 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-38732561

RESUMO

Background: Unhealthy lifestyles among adolescents are reaching alarming levels and have become a major public health problem. This study aimed to assess the relationship between sleep time, physical activity (PA) time, screen time (ST), and nutritional literacy (NL). Methods: This cross-sectional online study involving adolescents aged 10-18 years was conducted in September 2020 in 239 schools in Chongqing, China. NL was measured using the "Nutrition Literacy Scale for middle school students in Chongqing (CM-NLS)". According to the recommended by the Chinese dietary guidelines (2022), we divided the sleep time of junior high school students into <9 h and ≥9 h, high school students into <8 h and ≥8 h, divided the workdays into weekend PA time < 1 h and ≥1 h, and divided the workdays into weekend ST < 2 h and ≥2 h. The multinomial logistic regression model was used to examine the association. Results: A total of 18,660 adolescents (50.2% males) were included. The proportion of participants that were junior high school students and attended boarding schools was 57.2% and 65.3%, respectively. Compared with senior high school students, junior high school students had a higher level of NL. Whether on workdays or weekends, participants with sleep time ≥ 8/9 h, PA time ≥ 1 h, and ST < 2 h per day had higher levels of NL. On weekdays, participants who met the sleep time ≥ 8 h/9 h (OR = 1.48, 95% CI: 1.36, 1.62) and PA time ≥ 1 h (OR = 1.69, 95% CI: 1.59, 1.81) had higher reporting of NL levels. Conclusions: Sleep time, PA time, and ST were positively correlated with NL among adolescents, especially junior high school students.


Assuntos
Exercício Físico , Letramento em Saúde , Tempo de Tela , Sono , Humanos , Adolescente , Estudos Transversais , Masculino , Feminino , China , Sono/fisiologia , Criança , Letramento em Saúde/estatística & dados numéricos , Fatores de Tempo , Estudantes/estatística & dados numéricos
20.
Food Chem ; 456: 140003, 2024 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-38876064

RESUMO

Heterocyclic aromatic amines (HAAs) and advanced glycation end products (AGEs) are hazardous substances produced when food is heated. In this study, the ability of plasma-activated water (PAW) to simultaneously mitigate production of HAAs and AGEs in roasted beef patties was investigated. Assays of free radicals, lipid peroxidation, and active carbonyls were used to analyze the mechanisms. PAW treatment decreased the contents of free HAAs, free AGEs, bound HAAs, and bound AGEs to 12.65 ng/g, 0.10 µg/g, 297.74 ng/g, and 4.32 µg/g, with the inhibition rates of 23.88%, 23.08%, 11.02%, and 8.47%, respectively. PAW treatment decreased HAAs and AGEs and mitigated their increase during storage. The decrease of HAAs and AGEs in PAW-treated samples was correlated with the enhancement of antioxidant capacity. The increase of free radical scavenging ability by PAW treatment led to the decrease of lipid peroxidation and the decrease of active carbonyls, HAAs, and AGEs in meat products.

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