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1.
PLoS One ; 15(9): e0238564, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32911499

RESUMO

BACKGROUND: The prevalence of human immunodeficiency virus (HIV) varies markedly among different risk groups in China, spreading fromhigh-risk populations to the general population. Indeed, China is in a critical period of HIV/acquired immunodeficiency syndrome (AIDS) prevention and control; however, data regarding HIV testing, infection and coinfection among infertile couples are lacking. This study aimed to estimate the HIV/AIDS prevalence to identify risk factors among infertile couples in Hunan, China. METHODS: A cross-sectional hospital-based study was conducted to evaluate the prevalence of HIV/other infections (hepatitis B virus (HBV), hepatitis C virus (HCV), syphilis, and Chlamydia trachomatis, Neisseria gonorrhoeae, and Mycoplasma genitalium (MG) infections) among 338,432 infertile individuals in Hunan, China, from 2012 to 2018. We calculated linear trends in prevalence using bivariate linear regression. RESULTS: The overall prevalence rates of HIV, chlamydia, gonorrhea, MG, syphilis, and HBV and HCV antibody positivity in this study were 0.04%, 1.73%, 0.05%, 2.60%, 2.15%, 12.01% and 0.56%, respectively. The predominant infection was HBV, followed by MG, syphilis, and chlamydia. Only 1.13% of the participants (382/338432) reported sexually transmitted disease (STD) signs and symptoms suggesting genital tract infection. However, from 2012-2018, the variation in HIV prevalence was not significant (ß = 0.000, PTREND = 0.907). The characteristics of the HIV-infected infertile population have not shifted dramatically, with women accounting for 32.56% of HIV cases in China. Overall, 87.60% of HIV-infected individuals have a relatively low education. In total, 37.98% of HIV-positive patients engage in high-risk behaviors. CONCLUSIONS: This study expands upon existing knowledge of HIV prevalence in the infertile Chinese population. However, much work is needed to achieve popularization of prevention knowledge and change concept. Routine HIV screening is urgently needed for all adults with high-risk behaviors.


Assuntos
Infecções por HIV/complicações , Infertilidade/complicações , Adulto , China/epidemiologia , Doenças Transmissíveis/complicações , Doenças Transmissíveis/epidemiologia , Estudos Transversais , Feminino , Infecções por HIV/epidemiologia , Humanos , Infertilidade/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Adulto Jovem
2.
Int Immunopharmacol ; 74: 105701, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31228817

RESUMO

Synovitis is an aseptic inflammation that leads to joint effusion, pain and swelling. As one of the main drivers of pathogenesis in osteoarthritis (OA), the presence of synovitis contributes to pain, incidence and progression of OA. In our previous study, DC32 [(9α,12α-dihydroartemisinyl) bis(2'-chlorocinnmate)], a dihydroartemisinin derivative, was found to have an antirheumatic ability via immunosuppression, but the effect of DC32 on synovitis has not been fully illuminated. In this study, we chose to evaluate the effect and mechanism of DC32 on attenuating synovial inflammation. Fibroblast-like synoviocytes (FLSs) of papain-induced OA rats were isolated and cultured. And DC32 significantly inhibited the invasion and migration of cultured OA-FLSs, as well as the transcription of IL-6, IL-1ß, CXCL12 and CX3CL1 in cultured OA-FLSs measured by qPCR. DC32 remarkably inhibited the activation of ERK and NF-κB pathway, increased the expression of Nrf2 and HO-1 in cultured OA-FLSs detected by western blot. DC32 inhibited the degradation and phosphorylation of IκBα which further prevented the phosphorylation of NF-κB p65 and the effect of DC32 could be relieved by siRNA for Nrf2. In papain-induced OA mice, DC32 significantly alleviated papain-induced mechanical allodynia, knee joint swelling and infiltration of inflammatory cell in synovium. DC32 upregulated the mRNA expression of Type II collagen and aggrecan, and downregulated the mRNA expression of MMP2, MMP3, MMP13 and ADAMTS-5 in the knee joints of papain-induced OA mice measured by qPCR. The level of TNF-α in the serum and secretion of TNF-α in the knee joints were also reduced by DC32 in papain-induced OA mice. In conclusion, DC32 inhibited the inflammatory response in osteoarthritic synovium through regulating Nrf2/NF-κB pathway and attenuated OA. In this way, DC32 may be a potential agent in the treatment of OA.


Assuntos
Antirreumáticos/uso terapêutico , Artemisininas/uso terapêutico , Inflamação/tratamento farmacológico , Osteoartrite/tratamento farmacológico , Membrana Sinovial/imunologia , Sinoviócitos/fisiologia , Animais , Movimento Celular , Células Cultivadas , Citocinas/metabolismo , Modelos Animais de Doenças , Humanos , Masculino , Camundongos , Camundongos Endogâmicos C57BL , NF-kappa B/metabolismo , Fosforilação , Ratos , Ratos Sprague-Dawley , Transdução de Sinais
3.
Hua Xi Kou Qiang Yi Xue Za Zhi ; 36(6): 675-680, 2018 12 01.
Artigo em Chinês | MEDLINE | ID: mdl-30593117

RESUMO

The long-term effect of direct pulp capping and pulpotomy is closely related to the type of pulp capping materials. Various kinds of direct pulp capping materials are available, such as calcium hydroxide and mineral trioxide aggregates. Diverse new pulp capping materials have been reported recently. The excellent performance of calcium silicates has attracted much attention in previous studies. Moreover, enamel matrix derivative (Emdogain), which is capable of regeneration and remineralization, and other materials with similar capabilities have shown potential for use in pulp capping.


Assuntos
Tratamento do Canal Radicular , Compostos de Alumínio , Compostos de Cálcio , Hidróxido de Cálcio , Polpa Dentária , Capeamento da Polpa Dentária , Combinação de Medicamentos , Óxidos , Agentes de Capeamento da Polpa Dentária e Pulpectomia , Pulpotomia , Silicatos
4.
Food Funct ; 8(6): 2193-2201, 2017 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-28504280

RESUMO

Fructus aurantii immaturus (FAI) is the dried young fruit of Citrus aurantium L. or Citrus sinensis L. Osbeck. The purpose of this paper was to investigate the metabolic fate of FAI upon incubation with human intestinal bacteria, meanwhile to evaluate the antioxidant and anti-inflammatory activities of FAI and the transformed Fructus aurantii immaturus (TFAI). The water extract of FAI was anaerobically incubated with human intestinal bacterial suspensions for 48 h at 37 °C. Liquid chromatography-hybridised with quadrupole-time-of-flight mass spectrometry (LC-Q-TOF/MS) was applied to identify FAI metabolites. A total of 45 compounds were identified in FAI, eleven of which were metabolized by human intestinal bacteria. Nine major metabolites were identified as eriodictyol, naringenin, hesperetin, luteolin, apigenin, chryseriol, isosakuranetin, phloretin and diosmetin. The metabolic profile of FAI was elucidated on the basis of metabolite information. We found that the concentrations of acetic, propionic and butyric acids in FAI culture were all increased during fermentation relative to those of the control. Further bioactive evaluations showed that TFAI exhibited more potent antioxidant and anti-inflammatory abilities than FAI in vitro. Additionally, in vivo experiment confirmed that FAI significantly attenuated the blood endotoxin and TNF-α levels in the conventional rats compared to those of pseudo-germ-free (PGF) rats. This study revealed that metabolites may play a key role in the antioxidant and anti-inflammatory capacities of FAI.


Assuntos
Bactérias/metabolismo , Citrus/microbiologia , Medicamentos de Ervas Chinesas/metabolismo , Intestinos/microbiologia , Animais , Bactérias/genética , Bactérias/isolamento & purificação , Biotransformação , Cromatografia Líquida de Alta Pressão , Citrus/química , Citrus/metabolismo , Medicamentos de Ervas Chinesas/química , Medicamentos de Ervas Chinesas/farmacologia , Fermentação , Microbioma Gastrointestinal , Humanos , Macrófagos/efeitos dos fármacos , Macrófagos/imunologia , Masculino , Espectrometria de Massas , Camundongos , Células RAW 264.7 , Ratos , Ratos Wistar , Fator de Necrose Tumoral alfa/imunologia
5.
J Ethnopharmacol ; 198: 139-147, 2017 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-28065777

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: The ripe seeds of Herpetospermum caudigerum have been used in Tibetan folk medicine for treatment of bile or liver diseases including jaundice, hepatitis, intumescences or inflammation. Previously reports suggested that the seed oil and some lignans from H. caudigerum exhibited protective effects against carbon tetrachloride (CCl4)-induced hepatic damage in rats, which may be related to their free radical scavenging effect. However, the protective effect of H. caudigerum against cholestasis is still not revealed. The aim of the present study was to investigate the pharmacological effect and the chemical constituents of the petroleum ether extract (PEE) derived from H. caudigerum against α-naphthylisothiocyanate (ANIT)-induced acute cholestasis in rats. MATERIALS AND METHODS: Male cholestatic Sprague-Dawley (SD) rats induced by ANIT (60mg/kg) were orally administered with PEE (350, 700 and 1400mg/kg). Levels of serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), γ-Glutamyl transpeptidase (γ-GTP), total bilirubin (TBIL), direct bilirubin (DBIL) and total bile acid (TBA), as well as bile flow, and histopathological assay were evaluated. Hepatic malondialdehyde (MDA), myeloperoxidase (MPO), superoxide dismutase (SOD), glutathione S-transferase (GST), and nitric monoxide (NO) in liver were measured to explore the possible protective mechanisms. Phytochemical analysis of PEE was performed by gas chromatography-mass spectrometer (GC-MS). RESULTS: PEE have exhibited significant and dose-dependent protective effect on ANIT-induced liver injury by reduce the increases in serum levels of ALT, AST, ALP, γ-GTP, TBIL, DBIL and TBA, restore the bile flow in cholestatic rats, and reduce the severity of the pathological tissue damage induced by ANIT. Hepatic MDA, MPO and NO contents in liver tissue were reduced, while SOD and GST activities were elevated in liver tissue. 49 compounds were detected and 39 of them were identified by GC-MS analysis, in which long-chain fatty acids were the main constituents. CONCLUSIONS: PEE exhibited a dose-dependently protective effect on ANIT-induced liver injury in cholestatic rats with the potential mechanism of attenuated oxidative stress in the liver tissue, and the possible active compounds were long-chain fatty acids.


Assuntos
1-Naftilisotiocianato/toxicidade , Colestase/tratamento farmacológico , Cucurbitaceae , Medicina Tradicional Tibetana , Extratos Vegetais/uso terapêutico , Doença Aguda , Animais , Colestase/induzido quimicamente , Colestase/metabolismo , Cucurbitaceae/química , Relação Dose-Resposta a Droga , Fígado/efeitos dos fármacos , Fígado/patologia , Masculino , Estresse Oxidativo/efeitos dos fármacos , Extratos Vegetais/análise , Ratos , Ratos Sprague-Dawley
6.
Eur J Med Chem ; 107: 192-203, 2016 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-26595184

RESUMO

To explore novel high efficiency and low toxicity antitumor agents, a series of dihydroartemisinin-cinnamic acid ester derivatives modified on C-12 and/or C-9 position (s) were synthesized and the in vitro antitumor activities against PC-3, SGC-7901, A549 and MDA-MB-435s cancer cell lines were assessed. The hybrids (3-36) were prepared by esterification of 9α-hydroxyl-dihydroartemisinin (9α-OH DHA), the biotransformation product of dihydroartemisinin (DHA), and cinnamic acid derivatives. Compound 17 (IC50 = 0.20 µM) was the most potent anti-proliferative agent against the human lung carcinoma A549 cells, although it displayed low cytotoxicity on normal hepatic L-02 cells. The mechanism of action of compound 17 was further investigated by analysis of cell apoptosis and intracellular ROS generation. The results indicated that both ROS and ferrous ion contributed to the compound 17-induced cell death. Meanwhile, high intracellular ferrous ion and endogenous oxidative stress in A549 cells made them easier to suffer to compound 17-induced apoptosis. Our promising findings indicated the compound 17 could stand as drug candidate against lung cancer for further investigation.


Assuntos
Antineoplásicos Fitogênicos/química , Antineoplásicos Fitogênicos/farmacologia , Artemisininas/química , Cinamatos/química , Antineoplásicos Fitogênicos/síntese química , Apoptose/efeitos dos fármacos , Linhagem Celular Tumoral/efeitos dos fármacos , Técnicas de Química Sintética , Ensaios de Seleção de Medicamentos Antitumorais/métodos , Humanos , Ferro/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Espécies Reativas de Oxigênio/metabolismo
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