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1.
BMC Pregnancy Childbirth ; 22(1): 651, 2022 Aug 18.
Artigo em Inglês | MEDLINE | ID: mdl-35982421

RESUMO

BACKGROUND: Fetal macrosomia is associated with an increased risk of several maternal and newborn complications. Antenatal predication of fetal macrosomia remains challenging. We aimed to develop a nomogram model for the prediction of macrosomia using real-world clinical data to improve the sensitivity and specificity of macrosomia prediction. METHODS: In the present study, we performed a retrospective, observational study based on 13,403 medical records of pregnant women who delivered singleton infants at a tertiary hospital in Shanghai from 1 January 2018 through 31 December 2019. We split the original dataset into a training set (n = 9382) and a validation set (n = 4021) at a 7:3 ratio to generate and validate our model. The candidate variables, including maternal characteristics, laboratory tests, and sonographic parameters were compared between the two groups. A univariate and multivariate logistic regression was carried out to explore the independent risk factors for macrosomia in pregnant women. Thus, the regression model was adopted to establish a nomogram to predict the risk of macrosomia. Nomogram performance was determined by discrimination and calibration metrics. All the statistical analysis was analyzed using R software. RESULTS: We compared the differences between the macrosomic and non-macrosomic groups within the training set and found 16 independent risk factors for macrosomia (P < 0.05), including biparietal diameter (BPD), head circumference (HC), femur length (FL), amniotic fluid index (AFI) at the last prenatal examination, pre-pregnancy body mass index (BMI), and triglycerides (TG). Values for the areas under the curve (AUC) for the nomogram model were 0.917 (95% CI, 0.908-0.927) and 0.910 (95% CI, 0.894-0.927) in the training set and validation set, respectively. The internal and external validation of the nomogram demonstrated favorable calibration as well as discriminatory capability of the model. CONCLUSIONS: Our model has precise discrimination and calibration capabilities, which can help clinical healthcare staff accurately predict macrosomia in pregnant women.


Assuntos
Macrossomia Fetal , Gestantes , China/epidemiologia , Feminino , Macrossomia Fetal/diagnóstico , Macrossomia Fetal/epidemiologia , Macrossomia Fetal/etiologia , Humanos , Recém-Nascido , Parto , Gravidez , Estudos Retrospectivos , Fatores de Risco , Aumento de Peso
2.
FASEB J ; 33(7): 7970-7984, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-30917009

RESUMO

Pharmaceutical interest in targeting mitochondria is increasing because of their contribution in incurable diseases. However, the inner mitochondrial layer represents a major hurdle to overcome for most drugs. Penetrating peptides are a promising strategy for drug delivery, but the absence of standard principles and reliable prediction tools limits the design and discovery of sequences with improved organelle specificity. In our hypothesis, peptide local flexibility represents a valuable source to predict peptide performance. Here, a pool of short nonnatural peptides was designed with the same amino acid content but different positioning. Molecular dynamics and membrane-transfer simulations were used to generate the low-energy conformers in extra, intracellular, and membrane-inserted environments. The contributions of the hydrophobic and hydrophilic side chain-exposed surfaces revealed that the amino acid's relative position significantly affected the simulated peptide's dynamics. Based on the structural versatility, we predicted the peptides' behavior and the sequence with the most efficient membrane penetration and mitochondrial localization. The prediction and the improved performance of our peptides were experimentally confirmed and compared with a reported mitochondrial-targeting sequence. We demonstrated that an accurate understanding of the structural versatility is a valid aid for future works in designing sequences with improved mitochondrial targeting.-Pirisinu, M., Blasco, P., Tian, X., Sen, Y., Bode, A. M., Liu, K., Dong, Z. Analysis of hydrophobic and hydrophilic moments of short penetrating peptides for enhancing mitochondrial localization: prediction and validation.


Assuntos
Peptídeos Penetradores de Células/metabolismo , Sistemas de Liberação de Medicamentos , Mitocôndrias/metabolismo , Sequência de Aminoácidos , Apoptose , Membrana Celular/metabolismo , Peptídeos Penetradores de Células/química , Desenho de Fármacos , Células HeLa , Humanos , Interações Hidrofóbicas e Hidrofílicas , Simulação de Dinâmica Molecular , Relação Estrutura-Atividade , Frações Subcelulares/química , Água
3.
Int J Syst Evol Microbiol ; 69(12): 3777-3785, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31464659

RESUMO

Two Gram-stain-negative, aerobic, motile, white-pigmented and rod-shaped bacterial strains, 7MH5T and 4 M-K11T, were isolated from forest soil of Dinghushan Biosphere Reserve, Guangdong Province, PR China. Strain 7MH5T grew at 4-37 °C (optimum, 28-33 °C), pH 3.5-9.0 (pH 4.0-5.5) and in the presence of 0-3 % (w/v) NaCl (0-1.5 w/v); while strain 4 M-K11T grew at 4-42 °C (20-33 °C), pH 3.5-8.5 (pH 4.5-6.0) and in the presence of 0-2.5 % (w/v) NaCl (0-1.5 w/v). Strains 7MH5T and 4 M-K11T have the highest 16S rRNA gene sequence similarities of 98.6 and 98.7 % to Paraburkholderia peleae PP52-1T, and 98.4 % between themselves. In the 16S rRNA gene sequence phylogram, strains 4 M-K11T and Paraburkholderia ferrariae NBRC 106233T formed a clade while 7MH5T were relatively distinct from other Paraburkholderia species. Based on the UBCG phylogenomic analysis, strains 7MH5T and 4 M-K11T formed a clade with Paraburkholderia oxyphila NBRC 105797T and Paraburkholderia sacchari LMG 19450T in the genus of Paraburkholderia. The DNA G+C contents of strains 7MH5T and 4 M-K11T were 64.2 and 64.3 %, respectively. Digital DNA-DNA hybridization and the average nucleotide identity values of strains 7MH5T, 4 M-K11T and closely related strains were in the ranges of 25.2-63.6 % and 81.0-95.5 %, respectively. The two strains had the same major respiratory quinone: ubiquinone-8. Strain 7MH5T had C16 : 0, C17 : 0cyclo, C19 : 0cyclo ω8c and summed feature 8 (C18 : 1 ω7c/C18 : 1 ω6c) as its major fatty acids, while strain 4 M-K11T had major fatty acids of C16 : 0, C17 : 0cyclo and summed feature 2 (iso-C16 : 1 I/C14 : 0-3OH). The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. On the basis of phenotypic and phylogenetic analyses based on both 16S rRNA gene and whole genome sequences, as well as chemotaxonomic data, strains 7MH5T and 4 M-K11T represent two novel species of the genus Paraburkholderia, for which the names Paraburkholderia pallida sp. nov. (type strain 7MH5T=GDMCC 1.1450T=KACC 19962T) and Paraburkholderia silviterrae sp. nov. (type strain 4 M-K11T=GDMCC 1.1284T=CGMCC 1.15450T=KACC 19961T=LMG 29217T) are proposed.


Assuntos
Burkholderiaceae/classificação , Florestas , Filogenia , Microbiologia do Solo , Técnicas de Tipagem Bacteriana , Composição de Bases , Burkholderiaceae/isolamento & purificação , China , DNA Bacteriano/genética , Ácidos Graxos/química , Hibridização de Ácido Nucleico , Fosfolipídeos/química , RNA Ribossômico 16S/genética , Análise de Sequência de DNA , Ubiquinona/química
4.
Int J Syst Evol Microbiol ; 69(5): 1274-1280, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30789327

RESUMO

Strain DHOC27T is a Gram-stain-negative, aerobic, non-motile, light yellow-pigmented and rod-shaped bacterium isolated from the forest soil of Dinghushan Biosphere Reserve, Guangdong Province, PR China. It grew at 4-37 °C (optimal 28-33 °C), pH 4.0-8.5 (optimal 4.5-6.0) and 0-1.5 (optimal 0-0.5) % (w/v) NaCl. The results of phylogenetic analysis based on 16S rRNA gene sequences indicated that the strain formed a clade with Paraburkholderia phenazinium LMG 2247T, Paraburkholderia. sartisoli LMG 24000T and Paraburkholderia. pallidirosea DHOK13T, with a sequence similarity of 98.5, 97.5 and 98.1 % to the above strains, respectively. The DNA G+C content of DHOC27T was 62.3 mol%. The digital DNA-DNA relatedness values and the average nucleotide identities between strain DHOC27T and P. phenazinium LMG 2247T and P. sartisoli LMG 24000T were 26.9 and 24.3 % and 82.3 and 79.9 %, respectively. C16 : 0, C17 : 0 cyclo and C19 : 0 cyclo ω8c were the major fatty acids, and ubiquinone-8 was the major respiratory quinone detected, all of which supported the affiliation of DHOC27T to the genus Paraburkholderia. On the basis of the data presented above, strain DHOC27T represents a novel species of the genus Paraburkholderia and the name Paraburkholderia telluris sp. nov. is proposed. The type strain is DHOC27T (=LMG 30263T=GDMCC 1.1281T).


Assuntos
Burkholderiaceae/classificação , Florestas , Filogenia , Microbiologia do Solo , Técnicas de Tipagem Bacteriana , Composição de Bases , Burkholderiaceae/isolamento & purificação , China , DNA Bacteriano/genética , Ácidos Graxos/química , Hibridização de Ácido Nucleico , Pigmentação , RNA Ribossômico 16S/genética , Análise de Sequência de DNA , Ubiquinona/química
5.
Int J Syst Evol Microbiol ; 68(6): 1963-1968, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29676723

RESUMO

A novel Gram-stain-negative, aerobic, non-spore-forming, motile and rod-shaped bacterial strain, designated HM451T, was isolated from forest soil sampled at the Dinghushan Biosphere Reserve, Guangdong Province, PR China (112° 31' E 23° 10' N). It grew optimally at 28 °C, pH 5.0-6.0 and in the presence of 0-2.5 % (w/v) NaCl on R2A medium. Strain HM451T was closely related to Paraburkholderia mimosarum NBRC 106338T (98.6 % 16S rRNA gene sequence similarity), Paraburkholderia heleia NBRC 101817T (98.4 %) and Paraburkholderia silvatlantica SRMrh-20T (98.0 %). The 16S rRNA gene sequence analysis showed that strain HM451T and the three closely related strains formed a clade within the genus Paraburkholderia, but was clearly separated from the established species. The DNA-DNA relatedness value between strain HM451T and its phylogenetically closest relative, P. mimosarum NBRC 106338T, was much lower than 70 %. Strain HM451T contained ubiquinone 8 as the major respiratory quinone. Major fatty acids were C16 : 0, C17 : 0cyclo and summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c). The DNA G+C content of strain HM451T was 65.4 mol%. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, two unidentified aminophospholipids, one unidentified aminolipid and a polar lipid. The phenotypic, chemotaxonomic and phylogenetic data showed that strain HM451T represents a novel species of the genus Paraburkholderia, for which the name Paraburkholderia caseinilytica sp. nov. is proposed. The type strain is HM451T (=GDMCC 1.1190T=LMG 30092T).


Assuntos
Burkholderiaceae/classificação , Florestas , Filogenia , Microbiologia do Solo , Técnicas de Tipagem Bacteriana , Composição de Bases , Burkholderiaceae/genética , Burkholderiaceae/isolamento & purificação , China , DNA Bacteriano/genética , Ácidos Graxos/química , Hibridização de Ácido Nucleico , RNA Ribossômico 16S/genética , Análise de Sequência de DNA , Ubiquinona/química
6.
Chin J Physiol ; 59(4): 191-201, 2016 Aug 31.
Artigo em Inglês | MEDLINE | ID: mdl-27426258

RESUMO

The incidence of osteoporosis has increased among the elderly population. Establishing a model of bone remodeling for screening new drugs is critical to identify safe and effective treatments for osteoporosis. In this study, we established a platform to investigate the therapeutic effects of collagenous peptides extracted from scales of two kinds of fish, namely, sparidae and chanos. These peptides were prepared using seven concentrations of collagenous peptide: 100, 80, 60, 40, 20, 10 and 1 mg/ml. Experimental results indicated that collagenous peptides promoted the proliferation of osteoblasts and inhibited the proliferation of mature osteoclasts; the effective concentration of collagenous peptide-sparidae was 10 mg/ml and that of collagenous peptide-chanos was 40 mg/ml. These findings demonstrate that, to a certain extent, collagenous peptides extracted from fish scales can be used to prevent osteoporosis to assist bone remodeling.


Assuntos
Colágeno/uso terapêutico , Proteínas de Peixes/uso terapêutico , Osteoblastos/efeitos dos fármacos , Osteoclastos/efeitos dos fármacos , Osteoporose/prevenção & controle , Animais , Reabsorção Óssea/prevenção & controle , Diferenciação Celular/efeitos dos fármacos , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Colágeno/farmacologia , Avaliação Pré-Clínica de Medicamentos , Proteínas de Peixes/farmacologia , Humanos , Perciformes
7.
J Headache Pain ; 15: 70, 2014 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-25366245

RESUMO

BACKGROUND: To examine the association between headaches and epilepsy. METHODS: Consecutive adult epileptic patients who went to the outpatient clinic of the Epilepsy Center of PLA General Hospital between February 01, 2012, and May 10, 2013, were recruited into this study. A total of 1109 patients with epilepsy completed a questionnaire regarding headaches. RESULTS: Overall, 60.1% of the patients (male: 57.2%; female: 63.8%) reported headaches within the last year. The age-weighted prevalence of interictal migraine was 11.7% (male 8.9%, female 15.3%), which is higher than that reported in a large population-based study (8.5%, male 5.4%, female 11.6%) using the same screening questions. The prevalence of postictal headaches was 34.1% (males 32.7%, females 35.2%), and the presence of preictal headaches was 4.5% (males 4.3%, females 5.2%). The prevalence of headache yesterday in the general population was 4.8% (male 3.0%, female 6.6%). Thus, the prevalence of headaches, including migraine, is higher in epileptic patients in China. CONCLUSIONS: The high prevalence of postictal headaches confirms the frequent triggering of a headache by a seizure. A much lower frequency of preictal headaches, a condition in which the real triggering effect of the headache on the seizure might be difficult to prove.


Assuntos
Epilepsia/epidemiologia , Cefaleia/epidemiologia , Adolescente , Adulto , Idoso , China/epidemiologia , Comorbidade , Feminino , Cefaleia/diagnóstico , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Índice de Gravidade de Doença , Adulto Jovem
8.
Lung Cancer ; 192: 107831, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38805902

RESUMO

OBJECTIVES: This study aims to investigate the association between DNA double-strand breaks (DSBs) repair capacity, variations in DSBs-related genes, and the occurrence and prognosis of lung cancer in the Chinese population. METHODS: Peripheral blood mononuclear cells (PBMC) were collected from 98 lung cancer patients and 60 healthy individuals. The individual DSBs repair capacity was assessed by measuring changes in γ-H2AX levels after treatment with etoposide. Exonic sequencing of 45 DSBs-related genes was performed on PBMC DNA. Logistic regression analysis was conducted to examine the relationship between lung cancer risk and DSBs repair capacity as well as germlines gene variations. Survival analysis employed the Cox proportional hazards regression model, Kaplan-Meier method, and Log-rank test. RESULTS: Lower DSBs repair capacity predicted an increased risk of developing lung cancer (OR = 0.94, 95 %CI = 0.917-0.964, P<0.001). Among lung cancer patients, higher DSBs repair capacity was associated with shorter progression-free survival (PFS) during first-line treatment (HR = 1.80, 95 %CI = 1.10-3.00, P = 0.031). Patients with BRCA1 mutations had shorter overall survival (OS) (HR = 1.92, 95 %CI = 1.12-3.28, P = 0.018). Patients with FOXO3 mutations had shorter PFS (HR = 4.23, 95 %CI = 1.44-12.36, P = 0.009). Analysis of patients treated with immune checkpoint inhibitors (ICIs) indicated that LIG4 mutations were associated with shorter PFS (HR = 2.90, 95 %CI = 1.00-8.10, P = 0.041). CONCLUSIONS: This study concludes that assessing DSBs repair capacity holds promise for predicting both lung cancer risk and prognosis in the Chinese population. Further large-scale studies and functional validation of specific gene mutations related to double-strand breaks are necessary for confirmation.


Assuntos
Quebras de DNA de Cadeia Dupla , Reparo do DNA , Neoplasias Pulmonares , Humanos , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/tratamento farmacológico , Feminino , Masculino , Prognóstico , Pessoa de Meia-Idade , Reparo do DNA/genética , Idoso , Biomarcadores Tumorais/genética , Predisposição Genética para Doença , Leucócitos Mononucleares/metabolismo , Fatores de Risco
9.
Sci Total Environ ; 947: 174539, 2024 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-38977103

RESUMO

Mycotoxins, unavoidable contaminants in feed and feed ingredients, have the potential to influence the incidence and severity of various diseases upon ingestion. Sheep coccidiosis is an enteric disease caused by protozoa of Eimeria spp. However, the extent to which the presence of aflatoxin b1 (AFB1) synergistically exacerbates damage to intestinal health in lambs with Eimeria remains unclear. 50-day-old female lambs were randomly assigned to a 2 × 2 factorial arrangement of treatments for 15 days to assess the impact of AFB1 exposure on lambs with or without Eimeria (E.) ovinoidalis infection. Our findings reveal that AFB1 synergistically intensifies damage to intestinal health in lambs challenged by E. ovinoidalis. This is evidenced by disruptions to the intestinal microbiota and reductions in the production of short-chain fatty acids. AFB1 further aggravates damage to the cecal mechanical barrier. Additionally, AFB1 contributes to the entry of lipopolysaccharide into the bloodstream, activating the inflammatory response. Interestingly, AFB1 exposure history results in an early peak of oocyst excretion and a decreased number of oocyst excretion in E. ovinoidalis infected lambs. This may be closely linked to the destruction of the intestinal epithelial cell structure and its apoptosis, as indicated by a decreased ratio of Bcl-2 to Bax and increased caspase-3 levels. Mechanistically, proteomics analysis identified mitochondrial dysfunction (inhibition of the oxidative phosphorylation pathway) as the primary factor intensifying intestinal epithelial cell destruction caused by coccidia, exacerbated by AFB1 through the inhibiting the conversion of NADH to NAD+ in the cecum of lambs via down-regulation of the PGC-1α/NRF1/TFAM pathway. Overall, these results offer novel insights into the AFB1 complicity in accelerating intestinal damage caused by E. ovinoidalis in lambs. Targeting the mitochondrial oxidative phosphorylation pathway of the intestine may represent a new therapeutic strategy against the detrimental effects of mycotoxin and coccidia.


Assuntos
Aflatoxina B1 , Coccidiose , Eimeria , Doenças dos Ovinos , Animais , Aflatoxina B1/toxicidade , Eimeria/fisiologia , Ovinos , Coccidiose/veterinária , Doenças dos Ovinos/induzido quimicamente , Microbioma Gastrointestinal/efeitos dos fármacos , Feminino , Intestinos , Ração Animal
10.
Epilepsy Behav ; 20(3): 471-7, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21296621

RESUMO

We used diffusion tensor imaging to characterize microstructural changes and their associations with cognition in Chinese patients with frontal lobe epilepsy (FLE). We examined 18 adult patients with FLE and 20 healthy controls. Compared with normal controls, patients with FLE had increased mean diffusivity (MD) in the right frontal lobe and decreased fractional anisotropy (FA) in both thalami. Patients with FLE also had decreased FA in the right frontal lobe that correlated with patient age at seizure onset and increased MD in the left thalamus that correlated with duration of epilepsy. Patients with FLE performed significantly worse on nearly all cognitive tasks, and there was a positive correlation between Mini-Mental Status Examination scores and FA in the left frontal lobe and the left thalamus. Our results suggest that the thalamus might be an important extrafrontal structure involved in FLE and that a longer duration of epilepsy might result in more abnormalities in the thalamus. Our results also support the hypothesis that the left frontal lobe white matter and the thalamus contribute to cognitive impairment in patients with FLE.


Assuntos
Mapeamento Encefálico , Encéfalo/patologia , Transtornos Cognitivos/etiologia , Epilepsia do Lobo Frontal/complicações , Epilepsia do Lobo Frontal/patologia , Adolescente , Adulto , Imagem de Difusão por Ressonância Magnética , Feminino , Humanos , Masculino , Entrevista Psiquiátrica Padronizada , Pessoa de Meia-Idade , Testes Neuropsicológicos , Estatística como Assunto , Adulto Jovem
11.
Neurol India ; 58(6): 891-9, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21150056

RESUMO

BACKGROUND: Diffusion tensor imaging (DTI) is a sensitive technique for studying cerebral white matter. Only a few studies have examined the association between changes in extratemporal integrity and cognition in temporal lobe epilepsy (TLE), especially in Chinese patients. AIM: We used DTI to characterize microstructural changes and investigate their associations with cognition in patients with temporal lobe epilepsy. PATIENTS AND METHODS: We studied 27 adult patients with TLE and 21 healthy controls. A standardized neuropsychological evaluation and diffusion tensor imaging examination were conducted on each subject. Eight patients were excluded because T2-weighted magnetic resonance imaging (MRI) results showed visible lesions. Furthermore, we determined mean diffusivity (MD) and fractional anisotropy (FA) values in the different regions of interest - normal-appearing white matter (NAWM) in the frontal lobe white matter, the occipital lobe white matter, the corpus callosum, the internal capsules, the external capsules; and normal-appearing gray matter (NAGM) in the caudate nucleus head, the putamens and the thalami. These diffusion measurements were compared between the two groups, and we examined the correlations between DTI values and clinical characteristics. In addition, multiple linear regression analysis was used to study the association of DTI values with cognitive function. RESULTS: Compared with normal controls, TLE patients demonstrated decreased FA in NAGM of both thalami and NAWM of the posterior limb of the left internal capsule (P<.01). In patients with temporal lobe epilepsy, right thalamus FA showed a tendency to correlate with age at seizure onset (ß=0.47, P=.045), and left thalamus MD showed a tendency to correlate with the duration of epilepsy (ß=0.54 P=.038). Patients with temporal lobe epilepsy showed significantly poorer performance on nearly all tasks concerning category fluency and other executive functions (P<.01). In patients with TLE, there was a positive correlation between category fluency scores and FA in the white matter of the left frontal lobe (ß=0.429, P=.041) and the right occipital lobe (ß=0.613, P=.001). CONCLUSIONS: Our results suggested that the thalamus might be a potentially important extratemporal structure involved in temporal lobe epilepsy. Moreover, a longer duration of epilepsy or an earlier age at onset may result in more abnormalities in the thalamus. Patients with temporal lobe epilepsy showed significantly poorer performance on nearly all tasks concerning category fluency and other executive functions. Our results showed that frontal lobe white matter contributed to category fluency impairment in patients with TLE, but other areas might also contribute to these impairments.


Assuntos
Mapeamento Encefálico , Transtornos Cognitivos/diagnóstico , Imagem de Difusão por Ressonância Magnética/métodos , Epilepsia do Lobo Temporal/complicações , Epilepsia do Lobo Temporal/patologia , Adolescente , Adulto , Anisotropia , Corpo Caloso/patologia , Feminino , Lateralidade Funcional , Humanos , Processamento de Imagem Assistida por Computador , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Estudos Prospectivos , Estatística como Assunto , Tálamo/patologia , Adulto Jovem
12.
Biomed Pharmacother ; 130: 110520, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32707439

RESUMO

The mechanism of hair loss caused by aging is related to mitochondrial dysfunction. Pep-1-mediated mitochondrial transplantation is a potential therapeutic application for mitochondrial disorders, but its efficacy against hair aging remains unknown. This study compared platelet-rich plasma (PRP) therapy with mitochondrial transplantation for hair restoration and examined the related regulation in naturally aging mice. After dorsal hair removal, 100-week-old mice received weekly unilateral injections of 200 µg of allogeneic mitochondria-labeled 5-bromo-2'-deoxyuridine with (P-Mito) or without Pep-1 conjugation (Mito) or human PRP with a stamp-type electric injector for 1 month. The contralateral sides were used as corresponding sham controls. Compared with the control and corresponding sham groups, all treatments stimulated hair regrowth, and the effectiveness of P-Mito was equal to that of PRP. However, histology revealed that only P-Mito maintained hair length until day 28 and yielded more anagen follicles with abundant dermal collagen equivalent to that of the PRP group. Mitochondrial transplantation increased the thickness of subcutaneous fat compared with the control and PRP groups, and only P-Mito consistently increased mitochondria in the subcutaneous muscle and mitochondrial DNA copies in the skin layer. Therefore, P-Mito had a higher penetrating capacity than Mito did. Moreover, P-Mito treatment was as effective as PRP treatment in comprehensively reducing the expression of aging-associated gene markers, such as IGF1R and MRPS5, and increasing antiaging Klotho gene expression. This study validated the efficacy of mitochondrial therapy in the restoration of aging-related hair loss and demonstrated the distinct effects of PRP treatment.


Assuntos
Envelhecimento/fisiologia , Cabelo/crescimento & desenvolvimento , Mitocôndrias/transplante , Plasma Rico em Plaquetas , Transplante Autólogo/instrumentação , Transplante Autólogo/métodos , Envelhecimento/genética , Alopecia/fisiopatologia , Animais , Bromodesoxiuridina/farmacologia , Cisteamina/análogos & derivados , Cisteamina/química , Cisteamina/farmacologia , DNA Mitocondrial/biossíntese , DNA Mitocondrial/genética , Expressão Gênica , Glucuronidase/biossíntese , Glucuronidase/genética , Humanos , Proteínas Klotho , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Proteínas Mitocondriais/biossíntese , Proteínas Mitocondriais/genética , Agulhas , Peptídeos/química , Peptídeos/farmacologia , Receptor IGF Tipo 1/biossíntese , Receptor IGF Tipo 1/genética , Proteínas Ribossômicas/biossíntese , Proteínas Ribossômicas/genética
13.
Huan Jing Ke Xue ; 41(8): 3572-3580, 2020 Aug 08.
Artigo em Zh | MEDLINE | ID: mdl-33124330

RESUMO

Based on the automatic identification system (AIS) data and large field survey datasets for Xiamen port, the activity-based approach was used to calculate the emissions from each sailing ship in the Xiamen Emission Control Area (XECA), and to obtain the 2018 air emissions inventory for the XECA. This study subsequently analyzed the emission characteristics and spatiotemporal distribution characteristics of pollutants. The results showed that in 2018, the total amount of pollutants discharged from ships in the XECA was 16413 t, of which 82.2% were from ships entering and leaving the port and 17.8% were from ships outside of the port. NOx emissions were the highest among all of the pollutants and accounted for 64.2% of the total. Comparing the results of the five modes, emissions at berth were the highest, which was followed by the cruise mode, reduced speed-zone mode and maneuvering mode, and finally, the hoteling mode. In addition, the analysis indicated that the main source of pollutant emissions in Xiamen Port was cargo ships, of which, container ships contributed the most. The peak period of pollutant emissions from ships was between 09:00 and 16:00. The emission value during February was the lowest over the year, whereas the highest emission values occurred mostly during March and May. In terms of the spatial distribution, this study revealed that the main channel and port coastline had the highest emission values.


Assuntos
Poluentes Atmosféricos , Poluição do Ar , Poluentes Ambientais , Poluentes Atmosféricos/análise , Poluição do Ar/análise , Monitoramento Ambiental , Navios , Emissões de Veículos/análise
15.
Medicine (Baltimore) ; 98(47): e18088, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31764844

RESUMO

The objective of this study is to compare the effects of paravertebral nerve block-propofol intravenous general anesthesia (PPA) and sevoflurane inhalation general anesthesia (SGA) on the expression of serum vascular endothelial growth factor (VEGF) and transforming growth factor beta (TGF-ß) in patients undergoing radical resection of lung cancer.Patients undergoing radical resection of lung cancer were divided into PPA group and SGA group. In PPA group, thoracic paraspinal nerve block was performed with 0.5% ropivacaine (2 mg/kg) before general anesthesia. Anesthesia was maintained with 2.5-3.5 µg/mL TCI of propofol. In SGA group, anesthesia was maintained with 1.0-1.5 MAC sevoflurane. The dosage of opioids during and 24 h after operation, the pain score at 2, 8, 24, 48, and 72 h after operation, and the concentrations of serum VEGF and TGF-ß before and 24 h after operation were observed in the two groups.The intraoperative dosage of remifentanil in PPA group was significantly less than that in SGA group (P < 0.05). The dosage of sufentanil in SGA group was significantly less than that in SGA group at 24 h after operation (P < 0.05). The VAS score at 2, 8, and 24 h after operation was significantly lower than that in SGA group (P < 0.05). The serum VEGF and TGF-ß concentration in PPA group was significantly lower than that in SGA group (P < 0.05).Thoracic paravertebral nerve block-propofol intravenous general anesthesia can reduce the dosage of opioids, improve the effect of postoperative analgesia, and reduce the serum concentration of tumor angiogenesis-related factors in patients undergoing radical resection of lung cancer.


Assuntos
Anestesia Geral/métodos , Anestésicos Inalatórios/administração & dosagem , Anestésicos Intravenosos/administração & dosagem , Neoplasias Pulmonares/cirurgia , Pneumonectomia , Propofol/administração & dosagem , Sevoflurano/administração & dosagem , Sevoflurano/farmacologia , Fator de Crescimento Transformador beta/efeitos dos fármacos , Fator A de Crescimento do Endotélio Vascular/efeitos dos fármacos , Anestesia por Inalação , Anestesia Intravenosa , Anestésicos Inalatórios/farmacologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Músculos Paraespinais/inervação , Pneumonectomia/métodos , Propofol/farmacologia , Estudos Prospectivos , Tórax
16.
Psychoneuroendocrinology ; 33(5): 670-5, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18378096

RESUMO

The effects of long-term low-dose hormone replacement therapy (HRT) on the level of hormone in plasma and on the binding capacity of peripheral-type benzodiazepine receptor (PBR) on the platelet membranes were investigated among women. This study was a retrospective and case-controlled study where 64 women using long-term low-dose HRT for over 4 years entered the study and 99 women, age and education matched, were enrolled as control. Plasma hormone level and platelet PBR binding capacity of two groups were analyzed. A significant increase in plasma estradiol level in women using HRT was observed, compared to those in the control group. Meanwhile, women in the HRT group displayed higher platelet PBR binding capacity. Further analysis demonstrated that the binding capacity of platelet PBR was closely related to estradiol plasma level in all subjects. These results suggest that long-term low-dose HRT could relieve the decrease of estradiol level in plasma and PBR binding capacity on platelets in postmenopausal women, alleviate the endocrine imbalance process, and might be beneficial for reducing the risks of some diseases.


Assuntos
Plaquetas/metabolismo , Estradiol/sangue , Terapia de Reposição de Estrogênios/métodos , Pós-Menopausa/metabolismo , Receptores de GABA/sangue , Idoso , Estudos de Casos e Controles , Feminino , Humanos , Isoquinolinas/metabolismo , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Tempo , Trítio
17.
PLoS One ; 13(1): e0191564, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29377917

RESUMO

The green eggshell color produced by ducks is a threshold trait that can be influenced by various factors, such as hereditary, environment and nutrition. The aim of this study was to investigate the genetic regulation of the formation of eggs with green shells in Youxian ducks. We performed integrative analysis of mRNAs and miRNAs expression profiling in the shell gland samples from ducks by RNA-Seq. We found 124 differentially expressed genes that were associated with various pathways, such as the ATP-binding cassette (ABC) transporter and solute carrier supper family pathways. A total of 31 differentially expressed miRNAs were found between ducks laying green eggs and white eggs. KEGG pathway analysis of the predicted miRNA target genes also indicated the functional characteristics of these miRNAs; they were involved in the ABC transporter pathway and the solute carrier (SLC) supper family. Analysis with qRT-PCR was applied to validate the results of global gene expression, which showed a correlation between results obtained by RNA-seq and RT-qPCR. Moreover, a miRNA-mRNA interaction network was established using correlation analysis of differentially expressed mRNA and miRNA. Compared to ducks that lay white eggs, ducks that lay green eggs include six up-regulated miRNAs that had regulatory effects on 35 down-regulated genes, and seven down-regulated miRNAs which influenced 46 up-regulated genes. For example, the ABC transporter pathway could be regulated by expressing gga-miR-144-3p (up-regulated) with ABCG2 (up-regulated) and other miRNAs and genes. This study provides valuable information about mRNA and miRNA regulation in duck shell gland tissues, and provides foundational information for further study on the eggshell color formation and marker-assisted selection for Youxian duck breeding.


Assuntos
Cor , Casca de Ovo/metabolismo , Expressão Gênica , Animais , Patos , Reação em Cadeia da Polimerase em Tempo Real , Análise de Sequência de RNA
18.
Braz J Psychiatry ; 40(3): 325-334, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29412338

RESUMO

Post-stroke depression (PSD) is a very common complication that leads to increased physical disability, poor functional outcome, and higher mortality. Therefore, early detection and treatment are very important. Since there are currently no specific guidelines for this disorder in China, the purpose of this study was to develop PSD guidelines and provide suggestions for clinicians and related workers.


Assuntos
Transtorno Depressivo/diagnóstico , Transtorno Depressivo/terapia , Acidente Vascular Cerebral/psicologia , Antidepressivos/uso terapêutico , China/epidemiologia , Depressão/etiologia , Transtorno Depressivo/tratamento farmacológico , Transtorno Depressivo/epidemiologia , Humanos , Guias de Prática Clínica como Assunto , Psicoterapia , Fatores de Risco , Autorrelato , Índice de Gravidade de Doença , Reabilitação do Acidente Vascular Cerebral/normas , Sobreviventes/psicologia , Fatores de Tempo
19.
Gene ; 394(1-2): 25-34, 2007 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-17368759

RESUMO

In this study, the complete nucleotide sequence (17,962 bp) of the mitochondrial DNA of Amolops tormotus was determined using polymerase chain reaction (PCR). The gene content, base composition and codon usage of A. tormotus conformed to those of typical vertebrate patterns. Among 22 tRNAs, the novel position of the tRNA-His gene was in the D-loop region, which was a novel mtDNA gene rearrangement in amphibians. Phylogenetic analyses were based on a 885-bp sequence of 12S and 16S rRNA for species of Amolops and other related species, concatenated sequences of the 11 protein-encoding genes of 13 species.


Assuntos
DNA Mitocondrial/genética , Ranidae/genética , Animais , Composição de Bases/genética , Sequência de Bases , Códon/genética , Primers do DNA/genética , DNA Mitocondrial/química , Duplicação Gênica , Rearranjo Gênico , Modelos Genéticos , Conformação de Ácido Nucleico , Filogenia , Reação em Cadeia da Polimerase , RNA Ribossômico/genética , RNA Ribossômico 16S/genética , RNA de Transferência/genética , RNA não Traduzido/genética , Ranidae/classificação
20.
Zhonghua Yi Xue Za Zhi ; 87(45): 3183-7, 2007 Dec 04.
Artigo em Zh | MEDLINE | ID: mdl-18399110

RESUMO

OBJECTIVE: To explore the cognitive changes and the relation with the parameters of DTI in the brain areas in patients with temporal lobe epilepsy by neuropsychological test and DTI study. METHODS: Thirty-two patients with temporal lobe epilepsy, 11 males and 8 females, aged 32 +/- 12, with the education year of 8.6 +/- 1.2, and 42 sex, age, and education level-matched healthy controls underwent and a comprehensive test battery test including verbal fluency (VI), digit span (DSp), digit symbol (DSy), Stroop color-word test, trail making test, and so as to evaluate the intelligence level. Nineteen patients and twenty-one control subjects underwent diffusion tensor imaging (DTI) of the head. The correlation between the results of DTI and cognitive function tests of the patients was analyzed. RESULTS: VI test showed that the number of word spoken in 1 min by the healthy control group was (16 +/- 4), significantly more than that of the patient group [(11 +/- 4), P = 0.00]. The DSp score of the control group was (14.6 +/- 3.1) points, significantly more than that of the patient group [(11.1 +/- 2.8), P = 0.00]. The number of DSy filled by the patient group was (47 +/- 17), significantly less than that of the control group [(60 +/- 16), P = 0.00]. The time needed to make trail of the patients was (56 +/- 20) s, significantly longer than that of the control group [(37 +/- 11) s, P = 0.01]. The Stroop reaction time of the patient group was (6.1 +/- 4.5) s, significantly longer than that of the control group [(30 +/- 5) s, P = 0.00]. The Stroop error number of the patient group was (6.1 +/- 4.5), significantly more than that of the control group [(1.4 +/- 1.2), P = 0.00]. The fractional anisotropy (FA) values of the posterior limb of left internal capsule and of the bilateral thalami of the patient group were significantly lower than those of the control group (P = 0.01 or P = 0.00). VI was negatively correlated with the mean diffusivity (MD) in left caudamen (r = -0.56, P = 0.04), right putamen (r = -0.58, P = 0.04), left putamen (r = -0.58, P = 0.04), and right thalamus (r = -0.64, P = 0.02), and was positively correlated with the FA in white matter of left frontal lobe (r = 0.43, P = 0.04)and left occipital lobe (r = 0.47, P = 0.02). DSp was negatively correlated with the MD in splenium of corpus callosum (r = 0.58, P = 0.04) and left putamen (r = -0.59, P = 0.04). TMT was positively correlated with the MD in the posterior limb of right internal capsule (r = 0.65, P = 0.02) and posterior limb of left internal capsule (r = 0.59, P = 0.03). CONCLUSION: The prefrontal cortex is a vital component of the circuitry subserving executive function. But the corresponding damaged area in patients with impaired executive function was not limited to frontal lobe,more areas beyond frontal lobe may be involved in executive function.


Assuntos
Epilepsia do Lobo Temporal/diagnóstico , Epilepsia do Lobo Temporal/psicologia , Adolescente , Adulto , Cognição , Imagem de Difusão por Ressonância Magnética , Epilepsia do Lobo Temporal/fisiopatologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos
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