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1.
Ergonomics ; : 1-19, 2024 Mar 19.
Artigo em Inglês | MEDLINE | ID: mdl-38501496

RESUMO

Driving in urban areas can be challenging and encounter acute stress. To detect driver stress, collecting data on real roads without interfering the driver is preferred. A smartphone-based data collection protocol was developed to support a naturalistic driving study. Sixty-one participants drove on predetermined real road routes, and driving information as well as physiological, psychological, and facial data were collected. The algorithm identified potentially stressful events based on the collected data. Participants classified these events as low, medium, or highly stressful events by watching recorded videos after the experiment. These events were then used to train prediction models. The best model achieved an accuracy of 92.5% in classifying low/medium/highly stressful events. The contribution of physiological, psychological, and facial expression indices and individual profile information was evaluated. The method can be applied to visualise the geographical distribution of stressors, monitor driver behaviour, and help drivers regulate their driving habits.


The data collection protocol for driving on real roads and the stressful event identification method could potentially be applied for in-vehicle driver status monitoring and stress intervention.

2.
Zhongguo Zhong Yao Za Zhi ; 49(9): 2512-2521, 2024 May.
Artigo em Zh | MEDLINE | ID: mdl-38812155

RESUMO

The Shexiang Zhuifeng Zhitong Ointment with the effects of dispelling wind, removing dampness, dissipating cold, and relieving pain is used for treating arthralgia, muscular pain, and sprain pain caused by cold-dampness obstruction. To evaluate the efficacy and safety of Shexiang Zhuifeng Zhitong Ointment in relieving the pain due to knee osteoarthritis(syndrome of cold-dampness obstruction), a randomized, double-blind, parallel controlled, multicenter clinical trial was conducted. The stratified randomization method was used to randomize the 240 subjects into a treatment group and a control group in a ratio of 1∶1. In each group, 60 patients received external application for 12 h and the other 60 patients received external application for 6 h. The treatment group received external application of Shexiang Zhuifeng Zhitong Ointment, while the control group received external application of Shexiang Zhuifeng Ointment. The treatment lasted for 21 days in both groups. Follow-up was conducted on days 7, 14, and 21 of treatment. The results based on the full analysis set were as follows.(1)In visual analog scale(VAS) score, the mean difference in the VAS score between baseline and 12 h post-treatment was 3.02 in the treatment group and 2.31 in the control group, with a significant difference(P<0.05). The mean difference in the VAS score between baseline and 6 h post-treatment was 3.19 in the treatment group and 2.48 in the control group, with a significant difference(P<0.05).(2)Response rate in terms of VAS score, after treatment for 12 h, the response rate was 93.22% in the treatment group and 73.33% in the control group, with a significant difference(P<0.05). After treatment for 6 h, theresponse rate in the treatment group was 88.33%, which was higher than that(63.33%) in the control group(P<0.05).The results showed that Shexiang Zhuifeng Zhitong Ointment applied for 12 and 6 h effectively relieved the knee joint pain of patients with knee osteoarthritis due to cold-dampness obstruction, as demonstrated by the reduced VAS score, Western Ontario and McMaster Universities Arthritis Index(WOMAC), stiffness, and joint function score. Moreover, Shexiang Zhuifeng Zhitong Ointment outperformed the positive control Shexiang Zhuifeng Ointment in terms of reducing the VAS score, demonstrating a definitetherapeutic effect on the pain due to knee osteoarthritis(syndrome of cold-dampness obstruction).In addition, Shexiang Zhuifeng Zhitong Ointment did not cause other adverse reactions except for mild allergic reactions, which were common in the external application of traditional Chinese medicine plasters on the skin, inseveral patients.Neither other adverse reactions nor abnormalities of liver and kidney functions and electrocardiogram were observed. This ointment had high safety and could be popularized in clinical application.


Assuntos
Medicamentos de Ervas Chinesas , Pomadas , Osteoartrite do Joelho , Humanos , Osteoartrite do Joelho/tratamento farmacológico , Medicamentos de Ervas Chinesas/administração & dosagem , Masculino , Pessoa de Meia-Idade , Feminino , Método Duplo-Cego , Idoso , Resultado do Tratamento , Adulto , Dor/tratamento farmacológico , Dor/etiologia
3.
Biotechnol Lett ; 45(10): 1381-1391, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37589824

RESUMO

OBJECTIVE: In this study, we established an efficient and rapid transient expression system in the protoplasts of Pinellia ternata (Thunb.) Breit. (P. ternata). RESULTS: The protoplasts of P. ternata were prepared from plant leaves as the source material by digesting them with the combination of 20 g·l-1 cellulase and 15 g·l-1 macerozyme for 6 h. Based on the screening of PEG concentration, the conditions for PEG-mediated protoplast transformation were improved, and the highest transformation efficiency was found for 40% PEG 4000. Furthermore, we used the subcellular protein localization technique in P. ternata protoplasts to allow further validation of transient expression system. CONCLUSIONS: We present the method that can be applicable for studying both gene verification and expression in P. ternata protoplasts, thus allowing for engineering the improved varieties of P. ternata through molecular plant breeding techniques. This method can also be widely applicable for analyzing protein interactions, detecting promoter activity, for somatic cell fusion in plant breeding, as well as for other related studies.


Assuntos
Celulase , Pinellia , Pinellia/genética , Protoplastos , Melhoramento Vegetal , Embaralhamento de DNA
4.
Int Orthop ; 47(2): 319-327, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36102979

RESUMO

PURPOSE: To compare the effectiveness of TiRobot-assisted kyphoplasty with that of the traditional fluoroscopy-assisted approach in treating multilevel osteoporotic vertebral compression fractures. METHODS: In this retrospective study, we collected data from 71 patients (TiRobot-assisted group, n = 39; fluoroscopy-assisted group, n = 32) with multilevel osteoporotic vertebral compression fracture treated with unilateral traditional TiRobot-assisted or fluoroscopy-assisted percutaneous kyphoplasty. The operative time, infusion volume, length of stay (LOS), hospital expenses, visual analog scale (VAS), Oswestry Disability Index (ODI), radiation exposure, puncture deviation, anterior height of diseased vertebrae, local kyphotic angle, bone cement distribution, and bone cement leakage were compared between the TiRobot- and fluoroscopy-assisted groups. RESULTS: Of the 257 treated vertebrae, the average amount of bone cement injected in the TiRobot-assisted (142 vertebrae) and fluoroscopy-assisted (115 vertebrae) groups was 4.6 mL and 4.5 mL, respectively. The VAS score was significantly lower in the TiRobot-assisted group at 24 hours post-operatively (p = 0.006). The X-ray frequency was 34.7 times in the TiRobot-assisted group and 51.7 times in the fluoroscopy-assisted group (p < 0.001). In addition to the operative time, cumulative radiation dose for the surgeon and patient was significantly lower in the TiRobot-assisted group. The hospital expenses of the TiRobot-assisted group were significantly higher (p < 0.001). The puncture deviation and bone cement distribution were better in the TiRobot-assisted group (p < 0.001). Bone cement leakage was found in 18 and 29 cases in the TiRobot- and fluoroscopy-assisted groups, respectively (p = 0.010). One patient in the fluoroscopy-assisted group experienced radiculopathy due to a misplaced puncture but recovered in three months. No radiculopathy was observed in the TiRobot-assisted group. CONCLUSIONS: TiRobot-assisted percutaneous multilevel kyphoplasty is more accurate and has smaller radiometry, a more uniform bone cement distribution, and lower bone cement leakage. This method was therefore accurate and safe.


Assuntos
Fraturas por Compressão , Cifoplastia , Fraturas por Osteoporose , Fraturas da Coluna Vertebral , Vertebroplastia , Humanos , Cifoplastia/efeitos adversos , Cifoplastia/métodos , Fraturas por Compressão/diagnóstico por imagem , Fraturas por Compressão/cirurgia , Fraturas da Coluna Vertebral/diagnóstico por imagem , Fraturas da Coluna Vertebral/cirurgia , Cimentos Ósseos/uso terapêutico , Estudos Retrospectivos , Resultado do Tratamento , Fraturas por Osteoporose/diagnóstico por imagem , Fraturas por Osteoporose/cirurgia , Vertebroplastia/métodos
5.
J Sci Food Agric ; 103(10): 5004-5018, 2023 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-36987580

RESUMO

BACKGROUND: Atopic dermatitis (AD) is a chronic inflammatory skin disorder characterized by pruritus and eczema lesions and psychiatric comorbidities. The gut-brain-skin axis plays a pivotal role during AD development, which might suggest a novel therapeutic strategy for AD. The present study aims to uncover the protective effects and underlying mechanisms of fructo-oligofructose (FOS), a type of prebiotic, on AD-like skin manifestations and comorbid anxiety and depression in AD mice. RESULTS: Female Kunming mice were treated topically with 2,4-dinitrofluorobenzene (DNFB) to induce AD-like symptoms and FOS was administered daily for 14 days. The results showed that FOS could alleviate AD-like skin lesions markedly as evidenced by dramatic decreases in severity score, scratching bouts, the levels of immunoglobulin E (IgE) and T helper 1(Th1)/Th2-related cytokines, and the infiltration of inflammatory cells and mast cells to the dermal tissues. The comorbid anxiety and depressive-like behaviors, estimated by the forced swimming test (FST), the tail-suspension test (TST), the open-field test (OFT), and the zero maze test (ZMT) in AD mice, were significantly attenuated by FOS. Fructo-oligofructose significantly upregulated brain neurotransmitters levels of 5-hydroxytryptamine (5-HT) and dopamine (DA). Furthermore, FOS treatment increased the relative abundance of gut microbiota, such as Prevotella and Lactobacillus and the concentrations of short-chain fatty acids (SCFAs), especially acetate and iso-butyrate in the feces of AD mice. The correlation analysis indicated that the reshaped gut microbiome composition and enhanced SCFAs formation are associated with skin inflammation and behavioral alteration. CONCLUSION: Collectively, these data identify FOS as a promising microbiota-targeted treatment for AD-like skin inflammation and comorbid anxiety and depressive-like behaviors. © 2023 Society of Chemical Industry.


Assuntos
Dermatite Atópica , Camundongos , Feminino , Animais , Dermatite Atópica/induzido quimicamente , Dermatite Atópica/tratamento farmacológico , Dermatite Atópica/patologia , Dinitrofluorbenzeno/efeitos adversos , Pele , Citocinas , Inflamação/tratamento farmacológico
6.
Exp Dermatol ; 31(3): 398-405, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34608683

RESUMO

In chronic pruritic diseases such as atopic dermatitis (AD), pruritus and skin lesions are exacerbated by scratching in clinical and experimental settings. TRPV1 is known to mediate itch and neurogenic inflammation, but the role of TRPV1 in itch-associated scratching in AD is poorly understood. In this study, we examined the efficacy of cutting off nails and TRPV1 antagonist, ruthenium red (RR) in a murine model of AD induced by DNFB and further investigated the underlying mechanism. Nail clipping or RR could markedly ameliorate the general AD-like symptoms as manifested by the reduced clinical severity of dermatitis, IgE and Th2-related cytokine levels, and mast cell degranulation. Moreover, scratching behaviour, the levels of pruritogenic mediators, including HIS, TSLP, IL-31 and SP, and skin pH and TEWL were all significantly decreased in nail clipping or RR-treated mice, suggesting a reduction in itch-associated scratching and skin barrier defects. Immunofluorescence staining and Western blot results revealed that antipruritic effect of nail clipping or RR in AD may be explained, at least in part, by the suppression of TRPV1 activation. In summary, these data show that TRPV1 mediates itch-associated scratching and subsequent skin barrier defects, suggesting its potential as a therapeutic target in AD.


Assuntos
Dermatite Atópica , Animais , Citocinas/metabolismo , Dermatite Atópica/tratamento farmacológico , Dinitrofluorbenzeno/efeitos adversos , Mastócitos/metabolismo , Camundongos , Prurido/tratamento farmacológico , Pele/metabolismo , Canais de Cátion TRPV
7.
Int J Mol Sci ; 23(10)2022 May 13.
Artigo em Inglês | MEDLINE | ID: mdl-35628290

RESUMO

Inflammatory responses by the innate and adaptive immune systems protect against infections and are essential to health and survival. Many diseases including atherosclerosis, osteoarthritis, rheumatoid arthritis, psoriasis, and obesity involve persistent chronic inflammation. Currently available anti-inflammatory agents, including non-steroidal anti-inflammatory drugs, steroids, and biologics, are often unsafe for chronic use due to adverse effects. The development of effective non-toxic anti-inflammatory agents for chronic use remains an important research arena. We previously reported that oral administration of Oxy210, a semi-synthetic oxysterol, ameliorates non-alcoholic steatohepatitis (NASH) induced by a high-fat diet in APOE*3-Leiden.CETP humanized mouse model of NASH and inhibits expression of hepatic and circulating levels of inflammatory cytokines. Here, we show that Oxy210 also inhibits diet-induced white adipose tissue inflammation in APOE*3-Leiden.CETP mice, evidenced by the inhibition of adipose tissue expression of IL-6, MCP-1, and CD68 macrophage marker. Oxy210 and related analogs exhibit anti-inflammatory effects in macrophages treated with lipopolysaccharide in vitro, mediated through inhibition of toll-like receptor 4 (TLR4), TLR2, and AP-1 signaling, independent of cyclooxygenase enzymes or steroid receptors. The anti-inflammatory effects of Oxy210 are correlated with the inhibition of macrophage polarization. We propose that Oxy210 and its structural analogs may be attractive candidates for future therapeutic development for targeting inflammatory diseases.


Assuntos
Hepatopatia Gordurosa não Alcoólica , Oxisteróis , Animais , Apolipoproteínas E/metabolismo , Inflamação/metabolismo , Macrófagos/metabolismo , Camundongos , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , Hepatopatia Gordurosa não Alcoólica/metabolismo , Oxisteróis/metabolismo , Oxisteróis/farmacologia , Receptor 2 Toll-Like/metabolismo , Receptor 4 Toll-Like/metabolismo
8.
J Biol Chem ; 295(52): 18485-18493, 2020 12 25.
Artigo em Inglês | MEDLINE | ID: mdl-33097595

RESUMO

Timely repair of DNA double-strand breaks (DSBs) is essential to maintaining genomic integrity and preventing illnesses induced by genetic abnormalities. We previously demonstrated that the E3 ubiquitin ligase SMURF2 plays a critical tumor suppressing role via its interaction with RNF20 (ring finger protein 20) in shaping chromatin landscape and preserving genomic stability. However, the mechanism that mobilizes SMURF2 in response to DNA damage remains unclear. Using biochemical approaches and MS analysis, we show that upon the onset of the DNA-damage response, SMURF2 becomes phosphorylated at Ser384 by ataxia telangiectasia mutated (ATM) serine/threonine kinase, and this phosphorylation is required for its interaction with RNF20. We demonstrate that a SMURF2 mutant with an S384A substitution has reduced capacity to ubiquitinate RNF20 while promoting Smad3 ubiquitination unabatedly. More importantly, mouse embryonic fibroblasts expressing the SMURF2 S384A mutant show a weakened ability to sustain the DSB response compared with those expressing WT SMURF2 following etoposide treatment. These data indicate that SMURF2-mediated RNF20 ubiquitination and degradation controlled by ataxia telangiectasia mutated-induced phosphorylation at Ser384 constitutes a negative feedback loop that regulates DSB repair.


Assuntos
Proteínas Mutadas de Ataxia Telangiectasia/metabolismo , Cromatina/metabolismo , Dano ao DNA , Reparo do DNA , Retroalimentação Fisiológica , Ubiquitina-Proteína Ligases/metabolismo , Animais , Proteínas Mutadas de Ataxia Telangiectasia/genética , Cromatina/genética , Instabilidade Genômica , Humanos , Camundongos , Fosforilação , Ubiquitina-Proteína Ligases/genética , Ubiquitinação
9.
Exp Dermatol ; 30(2): 237-248, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33206422

RESUMO

Atopic dermatitis (AD) is a multifactorial chronic inflammatory skin disease characterized by skin barrier dysfunction, eczematous lesions, pruritus, and abnormal immune responses. In this study, we assessed the therapeutic effect of topical applied conjugated linoleic acid (CLA) on a murine AD model that was developed by repetitive applications of 2, 4-dinitrofluorobenzene (DNFB). 2% or 5% CLA could markedly ameliorate AD-like skin lesions, scratching behaviour and skin inflammation as evidenced by the reduced inflammatory blood cells, IgE and Th2-related cytokine levels, and the infiltration of mast cells and inflammatory cells to the dermal tissues. Moreover, topical application with CLA modulated skin barrier repair including maintaining a balanced skin pH and increasing skin hydration, partially mediated by upregulating skin barrier-related protein, filaggrin (FLG). In addition, topical CLA significantly dose-dependently inhibited pro-inflammatory cytokines including interleukin (IL)-6, IL-1ß, tumour necrosis factor (TNF)-α and pro-inflammatory enzyme expressions of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in inflamed mice skin. Its anti-inflammatory effect was associated with the inhibition of DNFB-stimulated IκBα and NF-κB p65 phosphorylation in mouse skin. Taken together, our results suggest that locally applied CLA exerts potentially protective effects against AD lesional skin at least in part, due to regulation of skin barrier function and inflammatory response.


Assuntos
Citocinas/sangue , Dermatite Atópica/tratamento farmacológico , Dermatite Atópica/fisiopatologia , Ácidos Linoleicos Conjugados/uso terapêutico , Administração Cutânea , Animais , Comportamento Animal/efeitos dos fármacos , Ciclo-Oxigenase 2/metabolismo , Dermatite Atópica/induzido quimicamente , Dermatite Atópica/patologia , Dinitrofluorbenzeno , Modelos Animais de Doenças , Proteínas Filagrinas/metabolismo , Concentração de Íons de Hidrogênio , Imunoglobulina E/sangue , Interleucina-1beta/sangue , Interleucina-6/sangue , Ácidos Linoleicos Conjugados/administração & dosagem , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Inibidor de NF-kappaB alfa/metabolismo , Óxido Nítrico Sintase Tipo II/metabolismo , Fosforilação/efeitos dos fármacos , Fenômenos Fisiológicos da Pele/efeitos dos fármacos , Fator de Transcrição RelA/metabolismo , Fator de Necrose Tumoral alfa/sangue
10.
FASEB J ; 34(6): 8416-8427, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32350948

RESUMO

During human erythroid maturation, Hsp70 translocates into the nucleus and protects GATA-1 from caspase-3 cleavage. Failure of Hsp70 to localize to the nucleus was found in Myelodysplastic syndrome (MDS) erythroblasts and can induce dyserythropoiesis, with arrest of maturation and death of erythroblasts. However, the mechanism of the nuclear trafficking of Hsp70 in erythroblasts remains unknown. Here, we found the hematopoietic transcriptional regulator, EDAG, to be a novel binding partner of Hsp70 that forms a protein complex with Hsp70 and GATA-1 during human normal erythroid differentiation. EDAG overexpression blocked the cytoplasmic translocation of Hsp70 induced by EPO deprivation, inhibited GATA-1 degradation, thereby promoting erythroid maturation in an Hsp70-dependent manner. Furthermore, in myelodysplastic syndrome (MDS) patients with dyserythropoiesis, EDAG is dramatically down-regulated, and forced expression of EDAG has been found to restore the localization of Hsp70 in the nucleus and elevate the protein level of GATA-1 to a significant extent. In addition, EDAG rescued the dyserythropoiesis of MDS patients by increasing erythroid differentiation and decreasing cell apoptosis. This study demonstrates the molecular mechanism of Hsp70 nuclear sustaining during erythroid maturation and establishes that EDAG might be a suitable therapeutic target for dyserythropoiesis in MDS patients.


Assuntos
Núcleo Celular/metabolismo , Eritroblastos/metabolismo , Eritropoese/fisiologia , Proteínas de Choque Térmico HSP70/metabolismo , Síndromes Mielodisplásicas/metabolismo , Proteínas Nucleares/metabolismo , Apoptose/fisiologia , Caspase 3/metabolismo , Diferenciação Celular/fisiologia , Células Cultivadas , Citoplasma/metabolismo , Regulação da Expressão Gênica/fisiologia , Doenças Hematológicas/metabolismo , Humanos
11.
PLoS Biol ; 16(12): e3000091, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30566427

RESUMO

Nonalcoholic fatty liver disease (NAFLD) is characterized by abnormal accumulation of triglycerides (TG) in the liver and other metabolic syndrome symptoms, but its molecular genetic causes are not completely understood. Here, we show that mice deficient for ubiquitin ligase (E3) Smad ubiquitin regulatory factor 1 (Smurf1) spontaneously develop hepatic steatosis as they age and exhibit the exacerbated phenotype under a high-fat diet (HFD). Our data indicate that loss of Smurf1 up-regulates the expression of peroxisome proliferator-activated receptor γ (PPARγ) and its target genes involved in lipid synthesis and fatty acid uptake. We further show that PPARγ is a direct substrate of Smurf1-mediated non-proteolytic lysine 63 (K63)-linked ubiquitin modification that suppresses its transcriptional activity, and treatment of Smurf1-deficient mice with a PPARγ antagonist, GW9662, completely reversed the lipid accumulation in the liver. Finally, we demonstrate an inverse correlation of low SMURF1 expression to high body mass index (BMI) values in human patients, thus revealing a new role of SMURF1 in NAFLD pathogenesis.


Assuntos
Fígado Gorduroso/prevenção & controle , PPAR gama/metabolismo , Ubiquitina-Proteína Ligases/fisiologia , Animais , Linhagem Celular , Dieta Hiperlipídica , Ácidos Graxos/metabolismo , Fígado Gorduroso/metabolismo , Fígado Gorduroso/fisiopatologia , Humanos , Fígado/metabolismo , Fígado/fisiologia , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Hepatopatia Gordurosa não Alcoólica/metabolismo , Triglicerídeos/metabolismo , Ubiquitina-Proteína Ligases/metabolismo , Ubiquitinação
12.
Arch Microbiol ; 203(5): 2211-2217, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33625539

RESUMO

A Gram-staining-positive, endospore-forming, aerobic strain, designed WN066T, was isolated from saline-alkali wetland soil of Tianjin, China. Phylogenetic analysis based on 16S rRNA gene sequence indicated WN066T was a member of the genus of Bacillus, and most closely related to Bacillus drentensis DSM 15600T (98.9%), Bacillus cucumis CCM 8651T (98.8%), Bacillus bataviensis DSM 15601T (98.7%) and Bacillus niacini DSM 2923T (98.7%). However, the average nucleotide identity (ANI) and digital DNA-DNA hybridization (DDH) values between strain WN066T and the most closely related species were less than the previously proposed cutoff values for differentiating species within the genus, suggesting that this strain represented a novel Bacillus species. The strain grew at 19-42 °C (optimally 33-37 °C) in the presence of 3-20% (w/v) NaCl (optimally 8-12%(w/v)), and at pH 6.5-11.0 (optimally 7.5-8.5). The major cellular fatty acids were iso-C15:0 (24.8%) and anteiso-C15:0 (38.9%). The predominant polar lipids consisted of diphosphatidylglycerol (DPG), phosphatidylglycerol (PG) and phosphatidylethanolamine (PE). The size of the draft genome was 6,213,503 bp in size and had a G + C content of 38.6 mol %. The peptidoglycan contained meso-diaminopimelic acid as the diagnostic diamino acid. On basis of phenotypic, phylogenetic, chemotaxonomic and genomic features, strain WN066T represented a novel species within the genus Bacillus, for which the name B. salipaludis sp. nov. is proposed. The type strain is WN066T (= KCTC 33953T = ACCC 60085T).


Assuntos
Bacillus/classificação , Bacillus/metabolismo , Bacillus/genética , Bacillus/isolamento & purificação , Técnicas de Tipagem Bacteriana , Composição de Bases/genética , DNA Bacteriano/genética , Ácido Diaminopimélico/química , Peptidoglicano/química , Filogenia , RNA Ribossômico 16S/genética , Análise de Sequência de DNA , Solo/química , Microbiologia do Solo , Áreas Alagadas
13.
Arch Microbiol ; 203(10): 6033-6039, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34731274

RESUMO

Strain WRN001T, a Gram-staining-negative, strictly aerobic, non-motile bacterium was isolated from the natural saline-alkali wetland soil of Binhai new district, Tianjin, China (38°46' N, 117°13' E). Cells of strain WRN001T were 0.3-0.5 µm in width and 1.5-2.5 µm in length, and the growth occurred optimally at 33-37 °C, pH 7.5-8.0, and in the presence of 8-10% (w/v) NaCl. Based on 16S rRNA gene sequence analysis, the isolate could be affiliated to the genus Halomonas, and the highest 16S rRNA gene sequence similarity of strain WRN001T to its closest relative Halomonas qiaohouensis DSM 26770 T was 97.5%. The size of the genome as presented here was 5,475,884 bp with a G + C content of 63.8 mol %. The major respiratory quinone of strainWRN001T was Q-9, and the dominant fatty acids were summed feature 8, summed feature 3, C10:0, C12:0, C12:0 3-OH, C16:0, and C17:0 cyclo. The major polar lipids were diphosphatidylglycerol (DPG), phosphatidylethanolamine (PE), phosphatidylglycerol (PG), phophatidylcholine (PC), two phospholipids (PL), aminolipid (AL), and three unidentified lipids (L). These data combined with the low digital DDH values between strain WRN001T and the close relative, Halomonas alkalitolerans CGMCC 1.9129 T (42.2%) and based on comparisons with currently available genomes, the highest average nucleotide identity (ANIm) value was 91.4% to Halomonas alkalitolerans CGMCC 1.9129 T (GenBank accession No. GCA_001971685.1). Therefore, we propose a novel species in the genus Halomonas to accommodate this novel isolate: Halomonas salipaludis sp. nov. (type strain WRN001T = KCTC 52853 T = ACCC 19974 T).


Assuntos
Halomonas , Álcalis , Técnicas de Tipagem Bacteriana , DNA Bacteriano/genética , Ácidos Graxos/análise , Halomonas/genética , Hibridização de Ácido Nucleico , Fosfolipídeos , Filogenia , RNA Ribossômico 16S/genética , Análise de Sequência de DNA , Solo , Áreas Alagadas
14.
Curr Microbiol ; 78(1): 429-434, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33219431

RESUMO

A Gram-staining-negative, halophilic, aerobic, oval-shaped or vibrio-shaped, motile by a polar flagellum strain, designated YL5-2T, was isolated from natural saline-alkaline wetland soil of Binhai new district, Tianjin, China. Strain YL5-2T grew optimally at 35 °C, pH 7.5-8.0, and in the presence of 10-25% (w/v) NaCl on MA medium. Phylogenetic analyses based on 16S rRNA gene sequences showed that the isolate belonged to the genus Halovibrio and exhibited high sequence similarity of 97.7% to Halovibrio variabilis DSM 3050T. The sole respiratory ubiquinone of strain YL5-2T is Q-9, and the dominant fatty acids were C18:1ω9c, C16:0, C19:0 cycloω8c, and Summed Feature 8. The major polar lipids were diphosphatidylglycerol (DPG), phosphatidylethanolamine (PE), phosphatidylglycerol (PG), phosphatidylcholine (PC), and lipid (L). The DNA G+C content of the strain was 62.1 mol%. The average nucleotide identity (ANI) based on whole genome sequences of strain YL5-2T and Halovibrio variabilis DSM 3050T was 93.85%, and the dDDH value between these two strains was determined to be 52.0%. Phenotypic, chemotaxonomic, phylogenetic, and genomic analyses suggested that strain YL5-2T represent a novel species of the genus Halovibrio, for which the name Halovibrio salipaludis sp. nov. is proposed. The type strain is YL5-2T (=KCTC 52852T=ACCC 19971T).


Assuntos
Microbiologia do Solo , Solo , Técnicas de Tipagem Bacteriana , China , DNA Bacteriano/genética , Ácidos Graxos , Halomonadaceae , Hibridização de Ácido Nucleico , Fosfolipídeos , Filogenia , RNA Ribossômico 16S/genética , Análise de Sequência de DNA
15.
Curr Microbiol ; 78(2): 803-809, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33389058

RESUMO

A Gram staining-negative, halophilic, aerobic, non-motile bacteria, designated strain WN018T, were isolated from the natural saline-alkali wetland soil of Binhai new district, Tianjin, China (38°46'N, 117°13'E). Cells of strain WN018T were short rod-shaped, 0.3-0.4 µm wide and 0.5-1.9 µm long, and growth occurred optimally at 30-33 °C, pH 7.5-8.0, and in the presence of 4-8% (w/v) NaCl. Based on 16S rRNA gene sequence analysis, the isolates could be affiliated to the genus Halomonas, exhibiting highest sequence similarity of 97.50% to Halomonas venusta DSM 4743T. The DNA G+C content of the strain was 63.8%. The distinct phylogenetic position and phenotypic traits distinguished the novel isolate from its nearest neighbors. The major respiratory quinone of strain WN018T was Q-9 (91.0%) and Q-8 (9.0%), and the dominant fatty acids were C16:0, C14:0, C10:0, C12:0 3-OH. The major polar lipids were diphosphatidylglycerol (DPG), phosphatidylethanolamine (PE), phosphatidylglycerol (PG), three phospholipids (PL), aminolipid (AL), and two unidentified lipids (L). The average nucleotide identity (ANI) based on whole-genome sequences of strain WN018T and Halomonas hydrothermalis DSM 15725T was 93.02%, and the dDDH value between these two strains was determined to be 49.7%. Therefore, we propose a novel species in the genus Halomonas to accommodate the novel isolate: Halomonas humidisoli sp. nov. (type strain WN018T = ACCC 19975T = KCTC 52854T).


Assuntos
Halomonas , Técnicas de Tipagem Bacteriana , China , DNA Bacteriano/genética , Ácidos Graxos/análise , Halomonas/genética , Hibridização de Ácido Nucleico , Fosfolipídeos , Filogenia , RNA Ribossômico 16S/genética , Análise de Sequência de DNA , Solo
16.
Urol Int ; 105(5-6): 370-379, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33302278

RESUMO

BACKGROUND: It has been reported that compared with no local therapy (NLT), patients treated with local therapy (LT) using radiotherapy (RT) possess higher survival rate in metastatic prostate cancer (mPCa). The aim of this meta-analysis was to evaluate the impact of RT on prognosis in patients with mPCa. METHODS: We retrieved the literature in PubMed, Embase, and Cochrane Library databases until June 2019 using structured search terms. Several studies were included, which evaluated patients with mPCa who received RT versus NLT. RESULTS: A total of 14,542 patients were analyzed in 7 included papers (2 randomized controlled trials [RCTs] and 5 cohort retrospective studies [CRS]), and 2,232 mPCa patients were treated with RT and 12,310 with NLT. The data of RCTs and CRS were analyzed separately. In RCTs, RT was associated with no significant difference in overall survival (OS) (pooled hazard ratio [HR] = 0.96; 95% confidence interval [CI]: 0.85-1.09; p = 0.55; I2 = 42%) relative to NLT, while survival benefit was observed in the low-metastatic burden group (pooled HR = 0.68; 95% CI: 0.54-0.86; p = 0.001; I2 = 0%), and no survival benefit was observed in the high-metastatic burden group (pooled HR = 1.07; 95% CI: 0.92-1.24; p = 0.39; I2 = 0%). In CRS, RT results in lower cancer-specific mortality (CSM) (pooled HR = 0.49; 95% CI: 0.34-0.75; p < 0.00001; I2 = 0%) and higher OS (pooled HR = 0.61; 95% CI: 0.55-0.68; p < 0.00001; I2 = 0%) relative to NLT. Subsequent analysis demonstrated that high level of M-stage or N-stage was associated with increased CSM (pooled HR = 2.08; 95% CI: 1.69-2.55; p < 0.00001; I2 = 0% and pooled HR = 1.16; 95% CI: 1.03-1.30; p < 0.00001; I2 = 0%; respectively). CONCLUSIONS: Our observations in aggregate indicated that RT at least does not appear to be harmful and may be beneficial for low-metastatic burden patients and better condition patients. More prospective and randomized studies evaluating RT for mPCa are warranted.


Assuntos
Neoplasias da Próstata/mortalidade , Neoplasias da Próstata/radioterapia , Humanos , Masculino , Metástase Neoplásica , Prognóstico , Neoplasias da Próstata/patologia , Taxa de Sobrevida
17.
Zhongguo Zhong Yao Za Zhi ; 46(17): 4314-4322, 2021 Sep.
Artigo em Zh | MEDLINE | ID: mdl-34581034

RESUMO

Bolbostemma paniculatum is a commonly used Chinese medicinal material effective in clearing heat, removing toxin, eliminating phlegm, and alleviating swelling. The anti-tumor activity it possesses makes it a research hotspot. At present, 76 compounds have been isolated from B. paniculatum, including triterpenoids, sterols, alkaloids, anthraquinones, organic acids, etc., with anti-tumor, antiviral, and immunosuppressive pharmacological activities. This study reviewed the research on the chemical constituents and pharmacological effects of B. paniculatum over the past 20 years, aiming to provide a scientific basis for the research on the pharmacodynamic material basis and promote the development and utilization of B. paniculatum.


Assuntos
Cucurbitaceae , Medicamentos de Ervas Chinesas , Triterpenos , Medicamentos de Ervas Chinesas/farmacologia , Edema
18.
Sensors (Basel) ; 20(23)2020 Dec 04.
Artigo em Inglês | MEDLINE | ID: mdl-33291519

RESUMO

In recent years, with the rise of global diabetes, a growing number of subjects are suffering from pain and infections caused by the invasive nature of mainstream commercial glucose meters. Non-invasive blood glucose monitoring technology has become an international research topic and a new method which could bring relief to a vast number of patients. This paper reviews the research progress and major challenges of non-invasive blood glucose detection technology in recent years, and divides it into three categories: optics, microwave and electrochemistry, based on the detection principle. The technology covers medical, materials, optics, electromagnetic wave, chemistry, biology, computational science and other related fields. The advantages and limitations of non-invasive and invasive technologies as well as electrochemistry and optics in non-invasives are compared horizontally in this paper. In addition, the current research achievements and limitations of non-invasive electrochemical glucose sensing systems in continuous monitoring, point-of-care and clinical settings are highlighted, so as to discuss the development tendency in future research. With the rapid development of wearable technology and transdermal biosensors, non-invasive blood glucose monitoring will become more efficient, affordable, robust, and more competitive on the market.


Assuntos
Técnicas Biossensoriais , Automonitorização da Glicemia , Dispositivos Eletrônicos Vestíveis , Glicemia , Humanos , Monitorização Fisiológica
19.
BMC Pediatr ; 19(1): 374, 2019 10 23.
Artigo em Inglês | MEDLINE | ID: mdl-31647006

RESUMO

BACKGROUND: To evaluate the early growth (weight and length) of HIV-exposed uninfected (HEU) children from the prevention of mother-to-child transmission (PMTCT) of human immunodeficiency virus (HIV) program in Guangdong Province, China. METHODS: A total of 731 HEU children were longitudinally followed up at 7 time points, with anthropometric measurement conducted of weight and length (supine) in the first 18 months. Z scores were calculated, with and without adjustment for gestational age. RESULTS: A total of 708 HEU children were included in the final follow-up cohort, and 105 (14.83%) children completed all 7 follow-up visits. The mean of adjusted weight-for-age Z scores in these children was above zero and showed a decreasing trend in 18 months. The mean of adjusted length-for-age Z scores showed a decreasing trend and was above zero in the first 12 months; this declined to under zero at age 18 months. The proportion of underweight was 0.28-2.19% and that of stunting was 0.71-4.63% at each follow-up month-age. Slower growth in HEU children was associated with no sustained food subside after 6 month, mothers' hemoglobin content less than 100 g/L during pregnancy, preterm birth, and low birth weight (p < 0.05). CONCLUSIONS: HEU children could catch up to WHO growth standards in first 18 months in Guangdong; however, growth declined after 12 months, and these children need sustained nutritional support.


Assuntos
Crescimento , Infecções por HIV/prevenção & controle , Infecções por HIV/transmissão , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Complicações Infecciosas na Gravidez , Estatura , Peso Corporal , Feminino , Seguimentos , Humanos , Lactente , Recém-Nascido , Estudos Longitudinais , Masculino , Gravidez , Fatores de Tempo
20.
J Biol Chem ; 292(10): 4302-4312, 2017 03 10.
Artigo em Inglês | MEDLINE | ID: mdl-28154170

RESUMO

Transforming growth factor-ß (TGF-ß) signals through both SMAD and non-SMAD pathways to elicit a wide array of biological effects. Existing data have shown the association and coordination between STATs and SMADs in mediating TGF-ß functions in hepatic cells, but it is not clear how STATs are activated under these circumstances. Here, we report that JAK1 is a constitutive TGFßRI binding protein and is absolutely required for phosphorylation of STATs in a SMAD-independent manner within minutes of TGF-ß stimulation. Following the activation of SMADs, TGF-ß also induces a second phase of STAT phosphorylation that requires SMADs, de novo protein synthesis, and contribution from JAK1. Our global gene expression profiling indicates that the non-SMAD JAK1/STAT pathway is essential for the expression of a subset of TGF-ß target genes in hepatic stellate cells, and the cooperation between the JAK1-STAT3 and SMAD pathways is critical to the roles of TGF-ß in liver fibrosis.


Assuntos
Embrião de Mamíferos/patologia , Células Estreladas do Fígado/patologia , Janus Quinase 1/metabolismo , Cirrose Hepática/patologia , Fator de Transcrição STAT3/metabolismo , Proteínas Smad/fisiologia , Fator de Crescimento Transformador beta/farmacologia , Animais , Células Cultivadas , Embrião de Mamíferos/efeitos dos fármacos , Embrião de Mamíferos/metabolismo , Perfilação da Expressão Gênica , Regulação da Expressão Gênica/efeitos dos fármacos , Células Estreladas do Fígado/efeitos dos fármacos , Células Estreladas do Fígado/metabolismo , Janus Quinase 1/genética , Cirrose Hepática/tratamento farmacológico , Cirrose Hepática/metabolismo , Camundongos , Camundongos Knockout , Fosforilação/efeitos dos fármacos , Fator de Transcrição STAT3/genética , Transdução de Sinais/efeitos dos fármacos
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