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1.
Toxicol Appl Pharmacol ; 486: 116946, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38679241

RESUMEN

The pathogenesis of attention-deficit/hyperactivity disorder (ADHD) has not been fully elucidated. Gestational hypertension could double the probability of ADHD in the offspring, while the initial bacterial communication between the mother and offspring has been associated with psychiatric disorders. Thus, we hypothesize that antihypertensive treatment during pregnancy may abate the impairments in neurodevelopment of the offspring. To test this hypothesis, we chose Captopril and Labetalol, to apply to pregnant spontaneously hypertensive rat (SHR) dams and examined the outcomes in the male offspring. Our data demonstrated that maternal treatment with Captopril and Labetalol had long-lasting changes in gut microbiota and behavioral alterations, including decreased hyperactivity and increased curiosity, spatial learning and memory in the male offspring. Increased diversity and composition were identified, and some ADHD related bacteria were found to have the same change in the gut microbiota of both the dam and offspring after the treatments. LC-MS/MS and immunohistochemistry assays suggested elevated expression of brain derived neurotrophic factor (BDNF) and dopamine in the prefrontal cortex and striatum of offspring exposed to Captopril/ Labetalol, which may account for the improvement of the offspring's psychiatric functions. Therefore, our results support the beneficial long-term effects of the intervention of gestational hypertension in the prevention of ADHD.


Asunto(s)
Antihipertensivos , Trastorno por Déficit de Atención con Hiperactividad , Conducta Animal , Captopril , Microbioma Gastrointestinal , Efectos Tardíos de la Exposición Prenatal , Ratas Endogámicas SHR , Animales , Microbioma Gastrointestinal/efectos de los fármacos , Embarazo , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Trastorno por Déficit de Atención con Hiperactividad/inducido químicamente , Femenino , Antihipertensivos/farmacología , Captopril/farmacología , Masculino , Ratas , Conducta Animal/efectos de los fármacos , Labetalol/farmacología , Factor Neurotrófico Derivado del Encéfalo/metabolismo , Hipertensión Inducida en el Embarazo/inducido químicamente , Dopamina/metabolismo
2.
Food Funct ; 15(9): 5088-5102, 2024 May 07.
Artículo en Inglés | MEDLINE | ID: mdl-38666497

RESUMEN

Diets rich in taurine can increase the production of taurine-conjugated bile acids, which are known to exert antihypertensive effects. Despite their benefits to the heart, kidney and arteries, their role in the central nervous system during the antihypertensive process remains unclear. Since hypothalamic paraventricular nucleus (PVN) plays a key role in blood pressure regulation, we aimed to investigate the function of bile acids in the PVN. The concentration of bile acids in the PVN of spontaneously hypertensive rats (SHRs) and normotensive Wistar-Kyoto rats (WKY) fed with normal chow was measured using LC-MS/MS, which identified taurocholic acid (TCA) as the most down-regulated bile acid. To fully understand the mechanism of TCA's functions in the PVN, bi-lateral PVN micro-infusion of TCA was carried out. TCA treatment in the PVN led to a significant reduction in the blood pressure of SHRs, with decreased plasma levels of norepinephrine and improved morphology of cardiomyocytes. It also decreased the number of c-fos+ neurons, reduced the inflammatory response, and suppressed oxidative stress in the PVN of the SHRs. Most importantly, the TGR5 receptors in neurons and microglia were activated. PVN infusion of SBI-115, a TGR5 specific antagonist, was able to counteract with TCA in the blood pressure regulation of SHRs. In conclusion, TCA supplementation in the PVN of SHRs can activate TGR5 in neurons and microglia, reduce the inflammatory response and oxidative stress, suppress activated neurons, and attenuate hypertension.


Asunto(s)
Hipertensión , Núcleo Hipotalámico Paraventricular , Receptores Acoplados a Proteínas G , Ácido Taurocólico , Animales , Masculino , Ratas , Antihipertensivos/farmacología , Presión Sanguínea/efectos de los fármacos , Hipertensión/tratamiento farmacológico , Hipertensión/metabolismo , Neuronas/efectos de los fármacos , Neuronas/metabolismo , Núcleo Hipotalámico Paraventricular/metabolismo , Núcleo Hipotalámico Paraventricular/efectos de los fármacos , Ratas Endogámicas SHR , Ratas Endogámicas WKY , Receptores Acoplados a Proteínas G/metabolismo , Receptores Acoplados a Proteínas G/genética
3.
Int J Mol Sci ; 24(15)2023 Aug 05.
Artículo en Inglés | MEDLINE | ID: mdl-37569858

RESUMEN

Soybean is one of the most widely grown oilseed crops worldwide. Several unfavorable factors, including salt and salt-alkali stress caused by soil salinization, affect soybean yield and quality. Therefore, exploring the molecular basis of salt tolerance in plants and developing genetic resources for genetic breeding is important. Sucrose non-fermentable protein kinase 1 (SnRK1) belongs to a class of Ser/Thr protein kinases that are evolutionarily highly conserved direct homologs of yeast SNF1 and animal AMPKs and are involved in various abiotic stresses in plants. The GmPKS4 gene was experimentally shown to be involved with salinity tolerance. First, using the yeast two-hybrid technique and bimolecular fluorescence complementation (BiFC) technique, the GmSNF1 protein was shown to interact with the GmPKS4 protein. Second, the GmSNF1 gene responded positively to salt and salt-alkali stress according to qRT-PCR analysis, and the GmSNF1 protein was localized in the nucleus and cytoplasm using subcellular localization assay. The GmSNF1 gene was then heterologously expressed in yeast, and the GmSNF1 gene was tentatively identified as having salt and salt-alkali tolerance function. Finally, the salt-alkali tolerance function of the GmSNF1 gene was demonstrated by transgenic Arabidopsis thaliana, soybean hairy root complex plants overexpressing GmSNF1 and GmSNF1 gene-silenced soybean using VIGS. These results indicated that GmSNF1 might be useful in genetic engineering to improve plant salt and salt-alkali tolerance.


Asunto(s)
Proteínas de Arabidopsis , Arabidopsis , Plantas Modificadas Genéticamente/genética , Plantas Modificadas Genéticamente/metabolismo , Proteínas de Soja/genética , Glycine max/metabolismo , Álcalis/metabolismo , Saccharomyces cerevisiae/metabolismo , Fitomejoramiento , Estrés Fisiológico/genética , Arabidopsis/metabolismo , Proteínas Quinasas/metabolismo , Regulación de la Expresión Génica de las Plantas , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Proteínas Serina-Treonina Quinasas/genética , Proteínas Serina-Treonina Quinasas/metabolismo , Proteínas de Arabidopsis/genética
4.
World J Clin Cases ; 10(31): 11652-11657, 2022 Nov 06.
Artículo en Inglés | MEDLINE | ID: mdl-36387829

RESUMEN

BACKGROUND: Colonoscopy has become a routine physical examination as people's health awareness has increased. Polyethylene glycol (PEG) is greatly used in bowel preparation before colonoscopy due to its price and safety advantages. Septic shock after colonoscopy with PEG preparation is extremely rare, with only very few cases in critically ill patients. Herein, we describe a case of septic shock in a healthy young adult immediately following colonoscopy with PEG preparation. CASE SUMMARY: A 33-year-old young adult presented to our hospital for colonoscopy with PEG bowel preparation due to recurrent diarrhea for 7 years. The male's previous physical examination showed no abnormal indicators, and colonoscopy results were normal; however, he exhibited septic shock and markedly elevated white blood cell, C-reactive protein, and procalcitonin levels on the second day after colonoscopy. Immediate resuscitation and intensive care with appropriate antibiotics improved his condition. However, the blood and stool cultures did not detect the pathogen. CONCLUSION: Septic shock after colonoscopy is rare, especially in young adults. The authors considered the possibility of opportunistic infections after PEG bowel preparation, and clinicians should monitor patients for the possibility of such complications.

5.
Circ Res ; 131(9): e120-e134, 2022 10 14.
Artículo en Inglés | MEDLINE | ID: mdl-36164984

RESUMEN

BACKGROUND: Despite available clinical management strategies, chronic kidney disease (CKD) is associated with severe morbidity and mortality worldwide, which beckons new solutions. Host-microbial interactions with a depletion of Faecalibacterium prausnitzii in CKD are reported. However, the mechanisms about if and how F prausnitzii can be used as a probiotic to treat CKD remains unknown. METHODS: We evaluated the microbial compositions in 2 independent CKD populations for any potential probiotic. Next, we investigated if supplementation of such probiotic in a mouse CKD model can restore gut-renal homeostasis as monitored by its effects on suppression on renal inflammation, improvement in gut permeability and renal function. Last, we investigated the molecular mechanisms underlying the probiotic-induced beneficial outcomes. RESULTS: We observed significant depletion of Faecalibacterium in the patients with CKD in both Western (n=283) and Eastern populations (n=75). Supplementation of F prausnitzii to CKD mice reduced renal dysfunction, renal inflammation, and lowered the serum levels of various uremic toxins. These are coupled with improved gut microbial ecology and intestinal integrity. Moreover, we demonstrated that the beneficial effects in kidney induced by F prausnitzii-derived butyrate were through the GPR (G protein-coupled receptor)-43. CONCLUSIONS: Using a mouse CKD model, we uncovered a novel beneficial role of F prausnitzii in the restoration of renal function in CKD, which is, at least in part, attributed to the butyrate-mediated GPR-43 signaling in the kidney. Our study provides the necessary foundation to harness the therapeutic potential of F prausnitzii for ameliorating CKD.


Asunto(s)
Faecalibacterium prausnitzii , Insuficiencia Renal Crónica , Animales , Butiratos/farmacología , Butiratos/uso terapéutico , Modelos Animales de Enfermedad , Inflamación , Riñón/fisiología , Receptores Acoplados a Proteínas G/genética
6.
Food Funct ; 13(18): 9532-9543, 2022 Sep 22.
Artículo en Inglés | MEDLINE | ID: mdl-35997017

RESUMEN

Gut microbiota is well-established to regulate host blood pressure. Diosgenin is a natural steroid sapogenin with documented anti-inflammatory, antioxidant and antihypertensive properties. We aimed to investigate whether the antihypertensive effects of diosgenin are mediated by the microbiota-gut-brain axis in spontaneously hypertensive rats (SHR). 15-Week-old male Wistar Kyoto rats (WKY) and age-matched SHR were randomly distributed into three groups: WKY, SHR treated with a vehicle, and SHR treated with diosgenin (100 mg kg-1). Our results showed that diosgenin prevented elevated systolic blood pressure (SBP) and ameliorated cardiac hypertrophy in SHR. Moreover, the gut microbiota composition and intestinal integrity were improved. Furthermore, increased butyrate-producing bacteria and plasma butyrate and decreased plasma lipopolysaccharides were observed in SHR treated with diosgenin. These findings were associated with reduced microglial activation and neuroinflammation in the paraventricular nucleus. Our findings suggest that diosgenin attenuates hypertension by reshaping the gut microbiota and improving the gut-brain axis.


Asunto(s)
Diosgenina , Hipertensión , Sapogeninas , Animales , Antiinflamatorios/farmacología , Antiinflamatorios/uso terapéutico , Antihipertensivos/farmacología , Antihipertensivos/uso terapéutico , Antioxidantes/farmacología , Presión Sanguínea , Encéfalo , Butiratos , Diosgenina/farmacología , Masculino , Ratas , Ratas Endogámicas SHR , Ratas Endogámicas WKY , Sapogeninas/farmacología
7.
MedComm (2020) ; 3(3): e136, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-35711853

RESUMEN

The CDK4/6-Rb axis is a crucial target of cancer therapy and several selective inhibitors of it have been approved for clinical application. However, current therapeutic efficacy evaluation mostly relies on anatomical imaging, which cannot directly reflect changes in drug targets, leading to a delay in the selection of optimal treatment. In this study, we constructed a novel fluorescent probe, CPP30-Lipo/CDKACT4, for real-time monitoring of CDK4 activity and the therapeutic efficacy of its inhibitor in HR+/HER2- breast cancer. CPP30-Lipo/CDKACT4 exhibited good optical stability and targetability. The signal of the probe in living cells decreased after CDK4 knockdown or palbociclib treatment. Moreover, the fluorescence intensity of the tumors after 7 days of palbociclib treatment was significantly lower than that before treatment, while no significant change in tumor diameter was observed under magnetic resonance imaging. Overall, we developed an innovative fluorescent probe that can monitor CDK4 activity and the early therapeutic response to CDK4 inhibitors in living cells and in vivo. It may provide a new strategy for evaluating antitumor therapeutic efficacy in a clinical context and for drug development.

8.
Iran J Immunol ; 19(1): 8, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-35293349

RESUMEN

This paper has aimed to review the available evidence on the association between Interleukin (IL) -10 -1082G/A, -592C/A gene polymorphisms and the risk of human immunodeficiency virus-1(HIV-1) infection. The data of PubMed updated in May 2021 were retrieved. The HIV infection risks were estimated in allelic, recessive, dominant, homozygous, heterozygous, over-dominant models of IL-10-1082G/A and-592C/A gene locus as odds ratio (OR) with the corresponding 95% confidence interval (95% CI). The correlation was not significant between -1082G/A polymorphism and HIV-1 susceptibility (allelic model (G vs. A: OR (95% CI)=0.968 (0.878-1.067)); recessive model (GG vs. AA+AG: OR (95% CI)=0.940, (0.771-1.146)); dominant model (GG+AG vs. AA: OR (95% CI)=0.967(0.846-1.106)); homozygous model (GG vs. AA: OR (95% CI)=0.971(0.780-1.209)); heterozygous model (AG vs. AA: OR (95% CI)=0.988(0.797-1.224)) and over-dominant model (GG+AA vs. AG: OR (95% CI)=0.969(0.781-1.201)). IL-10-592C/A polymorphism might be related to HIV-1 in allelic model, dominant model, homozygous model and heterozygous model (OR (95% CI)(0.796-0.965); OR (95% CI)=0.793(0.664-0.948); OR (95% CI)=0.755,(0.612-0.930); OR (95% CI)=0.820(0.679-0.991), respectively), but not to recessive model and over-dominant model (OR (95% CI)=0.882(0.770-1.010) and OR (95% CI)=1.009(0.897-1.148)).


Asunto(s)
Infecciones por VIH , Interleucina-10 , Predisposición Genética a la Enfermedad , VIH , Infecciones por VIH/genética , Humanos , Interleucina-10/genética , Polimorfismo de Nucleótido Simple , Factores de Riesgo
9.
Toxicol Appl Pharmacol ; 429: 115701, 2021 10 15.
Artículo en Inglés | MEDLINE | ID: mdl-34453990

RESUMEN

Gut dysbiosis and dysregulation of gut-brain communication have been identified in hypertensive patients and animal models. Previous studies have shown that probiotic or prebiotic treatments exert positive effects on the pathophysiology of hypertension. This study aimed to examine the hypothesis that the microbiota-gut-brain axis is involved in the antihypertensive effects of curcumin, a potential prebiotic obtained from Curcuma longa. Male 8- to 10-week-old spontaneously hypertensive rats (SHRs) and Wistar Kyoto (WKY) rats were divided into four groups: WKY rats and SHRs treated with vehicle and SHRs treated with curcumin in dosage of 100 or 300 mg/kg/day for 12 weeks. Our results show that the elevated blood pressure of SHRs was markedly decreased in both curcumin-treated groups. Curcumin treatment also altered the gut microbial composition and improved intestinal pathology and integrity. These factors were associated with reduced neuroinflammation and oxidative stress in the hypothalamus paraventricular nucleus (PVN). Moreover, curcumin treatment increased butyrate levels in the plasma, which may be the result of increased butyrate-producing gut microorganisms. In addition, curcumin treatment also activated G protein-coupled receptor 43 (GPR 43) in the PVN. These results indicate that curcumin reshapes the composition of the gut microbiota and ameliorates the dysregulation of the gut-brain communication to induce antihypertensive effects.


Asunto(s)
Antihipertensivos/farmacología , Bacterias/efectos de los fármacos , Presión Sanguínea/efectos de los fármacos , Eje Cerebro-Intestino/efectos de los fármacos , Curcumina/farmacología , Microbioma Gastrointestinal/efectos de los fármacos , Hipertensión/tratamiento farmacológico , Núcleo Hipotalámico Paraventricular/efectos de los fármacos , Animales , Antiinflamatorios/farmacología , Antioxidantes/farmacología , Bacterias/crecimiento & desarrollo , Bacterias/metabolismo , Butiratos/sangre , Cardiomegalia/metabolismo , Cardiomegalia/microbiología , Cardiomegalia/fisiopatología , Cardiomegalia/prevención & control , Modelos Animales de Enfermedad , Disbiosis , Hipertensión/metabolismo , Hipertensión/microbiología , Hipertensión/fisiopatología , Mediadores de Inflamación/metabolismo , Masculino , Estrés Oxidativo/efectos de los fármacos , Núcleo Hipotalámico Paraventricular/metabolismo , Núcleo Hipotalámico Paraventricular/fisiopatología , Ratas Endogámicas SHR , Ratas Endogámicas WKY , Receptores Acoplados a Proteínas G/metabolismo
10.
Micromachines (Basel) ; 12(3)2021 Feb 28.
Artículo en Inglés | MEDLINE | ID: mdl-33670962

RESUMEN

With the development of micromachining technologies, a wider use of microchannel heat sink (MCHS) is achieved in many fields, especially for cooling electronic chips. A microchannel with a width of 500 µm and a height of 500 µm is investigated through the numerical simulation method. Pin fins are arranged at an inclined angle of 0°, 30°, 45°, and 60°, when arrangement method includes in-lined pattern and staggered pattern. The effects of inclined angle and arrangement method on flow field and temperature field of MCHSs are studied when Reynolds number ranges from 10 to 300. In addition to this, quantitative analyses of hydraulic and thermal performance are also discussed in this work. With the increase of inclined angle, the variation of friction factor and Nusselt number do not follow certain rules. The best thermal performance is achieved in MCHS with in-lined fines at an inclined angle of 30° accompanied with the largest friction factor. Arrangement method of pin fins plays a less significant role compared with inclined angle from a general view, particularly in the Reynolds number range of 100~300.

11.
J Clin Rheumatol ; 27(7): 272-277, 2021 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-32028305

RESUMEN

OBJECTIVE: Urinary tumor necrosis factor-like weak inducer of apoptosis (uTWEAK) has been identified as a candidate biomarker for lupus nephritis (LN). However, its diagnostic value remains unclear. This meta-analysis was conducted to comprehensively evaluate the value of uTWEAK for diagnosis and evaluating activity in LN. METHODS: Medline, Web of Science, Chinese Biomedical Medical, and Chinese National Knowledge Infrastructure databases were searched to acquire eligible studies published before September 30, 2019. The quality of the studies was evaluated by Quality Assessment of Diagnostic Accuracy Studies-2. Summary receiver operating characteristic curve and area under the curve were applied to summarize the overall diagnostic performances. The pooled sensitivity, specificity, and diagnostic odds ratio (DOR) were calculated with the fixed-effects model. RevMan 5.3, Stata 12.0, and Meta-disc 1.4 software were used. RESULTS: A total of 7 studies were included. Of these, 4 studies were available for comparison between SLE with and without LN, and 3 studies were for active and inactive LN. The total area under the curve was 0.8640, and DOR was 14.89 (95% confidence interval [CI], 7.95-27.86). For LN diagnosis, the pooled sensitivity, specificity, and DOR were 0.55 (95% CI, 0.47-0.63), 0.92 (95% CI, 0.86-0.96), and 16.54 (95% CI, 7.57-36.15), respectively. For assessing LN activity, the pooled sensitivity, specificity, and DOR were 0.91 (95% CI, 0.82-0.96), 0.70 (95% CI, 0.58-0.81), and 18.45 (95% CI, 7.45-45.87), respectively. CONCLUSIONS: This meta-analysis indicated that uTWEAK has relatively moderate sensitivity and specificity for diagnosis and evaluating activity in LN, suggesting that uTWEAK can serve as a helpful biomarker for LN.


Asunto(s)
Nefritis Lúpica , Apoptosis , Biomarcadores , Humanos , Nefritis Lúpica/diagnóstico , Curva ROC , Factor de Necrosis Tumoral alfa
12.
Front Cell Dev Biol ; 8: 800, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33134289

RESUMEN

Temporal lobe epilepsy (TLE) is a severe chronic neurological disease caused by abnormal discharge of neurons in the brain and seriously affect the long-term life quality of patients. Currently, new insights into the pathogenesis of TLE are urgently needed to provide more personalized and effective therapeutic strategies. Accumulating evidence suggests that sphingosine kinase 1 (SphK1)/sphingosine 1-phosphate receptor 2 (S1PR2) signaling pathway plays a pivotal role in central nervous system (CNS) diseases. However, the precise altered expression of SphK1 and S1PR2 in TLE is remaining obscure. Here, we have confirmed the expression of SphK1 and S1PR2 in the pilocarpine-induced epileptic rat hippocampus and report for the first time the expression of SphK1 and S1PR2 in the temporal cortex of TLE patients. We found an increased expression of SphK1 in the brain from both epileptic rats and TLE patients. Conversely, S1PR2 expression level was markedly decreased. We further investigated the localization of SphK1 and S1PR2 in epileptic brains. Our study showed that both SphK1 and S1PR2 co-localized with activated astrocytes and neurons. Surprisingly, we observed different subcellular localization of SphK1 and S1PR2 in epileptic brain specimens. Taken together, our study suggests that the alteration of the SphK1/S1PR2 signaling axis is closely associated with the course of TLE and provides a new target for the treatment of TLE.

13.
Zhongguo Zhong Yao Za Zhi ; 45(14): 3432-3440, 2020 Jul.
Artículo en Chino | MEDLINE | ID: mdl-32726059

RESUMEN

The WD40 transcription factor family is a gene superfamily widely found in eukaryotes, which is closely related to plant growth and development regulation. It has been reported that the WD40 transcription factor was involved in the synthesis of anthocyanins, which is one of the vital components of safflower flavonoid compounds. In this study, 40 CtWD40 members in the safflower genome were identified though bioinformatics tools and gene expression analysis methods. According to the WD40 protein sequence and phylogenetic characteristics of Arabidopsis and other plants, the safflower CtWD40 family was classified into 7 subfamilies. Conservative motif analysis was used to reveal the specific conserved motifs and gene structures of each subfamily member, and there exist a certain degree of similarities in the conserved motifs and gene structure between the closely related family members. Subsequently, the search for cis-acting elements of gene promoters found CtWD40-specific promoter elements, revealing the metabolic pathways which may involve. Next, enrichment of function analysis was employed to analyze the functional categories and cellular localization of the CtWD40 protein. Furthermore, the interactions between CtWD40 proteins predicted its potential regulatory function. Finally, 19 members of the safflower CtWD40 subfamily were analyzed by qRT-PCR, the result showed the expression patterns of these members were different in diverse tissue and flowering period. This study provides a basis for the functional and expression research of the CtWD40 genes.


Asunto(s)
Carthamus tinctorius , Biología Computacional , Perfilación de la Expresión Génica , Regulación de la Expresión Génica de las Plantas , Genoma de Planta , Familia de Multigenes , Filogenia , Proteínas de Plantas/genética , Factores de Transcripción/genética
14.
Zhongguo Ying Yong Sheng Li Xue Za Zhi ; 35(4): 308-311, 2019 Jul 28.
Artículo en Chino | MEDLINE | ID: mdl-31701712

RESUMEN

OBJECTIVE: To observe the expressions of sphingosine kinase 1 (SphK1) and sphingosine-1-phosphate receptor 2 (S1PR2) in hippocampus of epileptic rats and to investigate the pathogenesis of SphK1 and S1PR2 in epilepsy. METHODS: One hundred and eight male Sprague-Dawley (SD) rats were randomly divided into control group (n=48) and pilocarpine (PILO) group (n=60). A robust convulsive status epilepticus (SE) was induced in PILO group rats by the application of pilocarpine. Control group rats were injected with respective of physiological saline. Pilocarpine group was randomly divided into 6 subgroups (n=8): acute group (E6 h, E1 d, E3 d), latent group (E7 d) and chronic group (E30 d, E56 d). Each subgroup has 8 control rats and 8 epileptic rats. Hippocampal tissue and brain slices were obtained from control rats and rats subjected to the Li-PILO model of epilepsy at 6 h, 1 d, 3 d,7 d,30 d and 56 d after status epilepticus (SE). Western blot technique was used to determine the expressions of SphK1 and S1PR2 in hippocampus at different point of time after pilocarpine treatment. Immunofluorescence was applied to detect the activation and proliferation of hippocampal astrocytes and the localization of SphK1 and S1PR2 in rat hippocampal astrocytes. RESULTS: Compared with control group, the levels of SphK1 in acute phase (E3 d), latent phase (E7 d) and chronic phase (E30 d, E56 d) were significantly increased while the expressions of S1PR2 were decreased in acute phase (E3 d), latent phase (E7 d) and chronic phase (E30 d, E56 d)(P<0.05 or P<0.01). Immunofluorescence results showed astrocyte activation and proliferation in hippocampus of epileptic (E7 d) rats (P<0.05). Confocal microscopy confirmed the preferential expressions of SphK1 and S1PR2 in epileptic rat(E7 d)hippocampal astrocytes. CONCLUSION: The results indicate that SphK1 and S1PR2 may play an important role in the pathogenesis of epilepsy by regulating the activation and proliferation of hippocampal astrocytes and altering neuronal excitability.


Asunto(s)
Epilepsia/enzimología , Fosfotransferasas (Aceptor de Grupo Alcohol)/metabolismo , Receptores de Lisoesfingolípidos/metabolismo , Animales , Astrocitos/enzimología , Epilepsia/fisiopatología , Hipocampo/citología , Hipocampo/enzimología , Masculino , Pilocarpina , Distribución Aleatoria , Ratas , Ratas Sprague-Dawley , Receptores de Esfingosina-1-Fosfato
15.
Zhongguo Zhong Yao Za Zhi ; 44(2): 278-282, 2019 Jan.
Artículo en Chino | MEDLINE | ID: mdl-30989946

RESUMEN

To clone bHLH( basic helix-loop-helix) gene from Carthamus tinctorius,analyze the expression level in different plant tissues and construct the plant expression vector. The bHLH1 gene was cloned by RT-PCR techniques,and the protein characteristics were analyzed by bioinformatics,and phylogenetic tree was constructed. The expression of bHLH1 gene in different tissues and the roots after inoculated by Fusarium oxysporum were analyzed using real time-PCR,and the plant expression vector p BASTA-bHLH1 was constructed. The obtained ORF sequence of bHLH1 gene was 897 bp,encoded a protein of 298 amino acids. Sequence alignment and phylogenetic tree analyses showed that C. tinctorius bHLH1 had a certain homology with other species of amino acids,and was the most similar to the amino acid sequence of tobacco. Real-time PCR results showed significant differences,CtbHLH1 gene in red flower petals in different tissues and different flowering period had remarkable difference in expression level,its high amount expressed in petals,flowers third day after blossom expressed the highest quantity,at the end of the flowering the expression quantity is low. In addition,it is expressed in the root,and the expression in the stem and leaves is extremely low. The bHLH1 gene of C. tinctorius is successfully cloned,and the expression is analyzed. The plant expression vector p BASTA-bHLH is constructed.


Asunto(s)
Factores de Transcripción con Motivo Hélice-Asa-Hélice Básico/genética , Carthamus tinctorius/genética , Proteínas de Plantas/genética , Secuencia de Aminoácidos , Clonación Molecular , Flores/genética , Regulación de la Expresión Génica de las Plantas , Vectores Genéticos , Filogenia
16.
Int J Mol Sci ; 20(6)2019 Mar 18.
Artículo en Inglés | MEDLINE | ID: mdl-30889878

RESUMEN

Diacylglycerol kinase (DGK) is an enzyme that plays a pivotal role in abiotic and biotic stress responses in plants by transforming the diacylglycerol into phosphatidic acid. However, there is no report on the characterization of soybean DGK genes in spite of the availability of the soybean genome sequence. In this study, we performed genome-wide analysis and expression profiling of the DGK gene family in the soybean genome. We identified 12 DGK genes (namely GmDGK1-12) which all contained conserved catalytic domains with protein lengths and molecular weights ranging from 436 to 727 amino acids (aa) and 48.62 to 80.93 kDa, respectively. Phylogenetic analyses grouped GmDGK genes into three clusters-cluster I, cluster II, and cluster III-which had three, four, and five genes, respectively. The qRT-PCR analysis revealed significant GmDGK gene expression levels in both leaves and roots coping with polyethylene glycol (PEG), salt, alkali, and salt/alkali treatments. This work provides the first characterization of the DGK gene family in soybean and suggests their importance in soybean response to abiotic stress. These results can serve as a guide for future studies on the understanding and functional characterization of this gene family.


Asunto(s)
Diacilglicerol Quinasa/genética , Perfilación de la Expresión Génica , Genómica , Glycine max/enzimología , Glycine max/genética , Familia de Multigenes , Estrés Fisiológico/genética , Secuencias de Aminoácidos , Secuencia de Aminoácidos , Cromosomas de las Plantas/genética , Diacilglicerol Quinasa/química , Diacilglicerol Quinasa/metabolismo , Regulación de la Expresión Génica de las Plantas , Genes de Plantas , Especificidad de Órganos/genética , Filogenia , Regiones Promotoras Genéticas/genética , Dominios Proteicos , ARN Mensajero/genética , ARN Mensajero/metabolismo , Fracciones Subcelulares/metabolismo
17.
Int J Rheum Dis ; 22(4): 599-607, 2019 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-30729755

RESUMEN

AIM: To evaluate the overall diagnostic value of anti-citrullinated fibrinogen (ACF) antibody in patients with rheumatoid arthritis (RA). METHODS: Published studies were systematically retrieved from PubMed, Web of Science, China National Knowledge Infrastructure (CNKI), Wan Fang, China Biology Medicine (CBM) disc, and Chinese VIP databases. QUADAS-2 tool was applied to evaluate the quality of eligible studies. Subgroup analysis and meta-regression were used to explore the sources of heterogeneity. Egger's test was used to evaluate for the presence of publication bias. RESULTS: Seven studies were included in this meta-analysis. The pooled sensitivity, specificity, pooled positive likelihood ratio, negative likelihood ratio and diagnostic odds ratio of ACF were 0.61 (95% CI: 0.57-0.64), 0.93 (95% CI: 0.92-0.94), 9.33 (95% CI: 5.15-16.92), 0.39 (95% CI: 0.30-0.53) and 24.58 (95% CI: 11.47-52.64), respectively. The area under the curve was 0.8018. The results of subgroup analysis and meta-regression indicated that the factors we analyzed might not be the leading causes of heterogeneity. No significant publication bias was found. CONCLUSION: The ACF antibody had a moderate diagnostic accuracy on RA.


Asunto(s)
Anticuerpos Antiproteína Citrulinada/sangre , Artritis Reumatoide/diagnóstico , Fibrinógeno/inmunología , Péptidos Cíclicos/inmunología , Artritis Reumatoide/sangre , Artritis Reumatoide/inmunología , Biomarcadores/sangre , Humanos , Valor Predictivo de las Pruebas , Pronóstico , Reproducibilidad de los Resultados
18.
Med Sci Monit ; 23: 5330-5336, 2017 Nov 09.
Artículo en Inglés | MEDLINE | ID: mdl-29118314

RESUMEN

BACKGROUND Presently, studies of factors associated with drug-resistant tuberculosis (TB) focus on patients' socio-demographic characteristics and living habits, to the exclusion of biochemical indicators, especially immune factors. This study was carried out to determine whether immune factors are associated with drug-resistant TB. MATERIAL AND METHODS A total of 227 drug-resistant pulmonary TB patients and 225 drug-susceptible pulmonary TB patients were enrolled in this study. Information on socio-demographic characteristics and biochemical indicators were obtained through their clinical records. Non-conditional logistic regression was used to analyze the association of these indicators with drug-resistant TB. RESULTS There were significant differences in re-treatment, marital status, alanine aminotransferase (ALT), blood uric acid (BUA), carcino-embryonic antigen (CEA), T-spot, and CD3 and CD4 counts between the 2 groups. In multivariable analysis, re-treatment [Odds Ratio (OR)=5.290, 95% Confidence Interval [CI]=2.652-10.551); CD3 (OR=1.034, 95% CI=1.001-1.068); CD4 (OR=1.035, 95% CI =1.001-1.070) and IgM (OR=1.845, 95% CI=1.153-2.952) were associated with drug-resistant TB. CONCLUSIONS These results suggest the need for greater attention to re-treatment cases and immune function when treating drug-resistant TB.


Asunto(s)
Factores Inmunológicos/metabolismo , Tuberculosis Resistente a Múltiples Medicamentos/inmunología , Adulto , Anciano , Antituberculosos/uso terapéutico , Biomarcadores Farmacológicos/sangre , Complejo CD3/sangre , Complejo CD3/inmunología , Antígenos CD4/sangre , Antígenos CD4/inmunología , Estudios de Casos y Controles , China , Femenino , Humanos , Inmunidad Celular/inmunología , Inmunoglobulina M/sangre , Inmunoglobulina M/inmunología , Factores Inmunológicos/sangre , Factores Inmunológicos/fisiología , Modelos Logísticos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Factores de Riesgo , Tuberculosis Resistente a Múltiples Medicamentos/metabolismo
19.
Int J Mol Sci ; 17(4)2016 Apr 22.
Artículo en Inglés | MEDLINE | ID: mdl-27110776

RESUMEN

Dehydration-responsive element binding (DREB) transcription factors (TFs) play important roles in the regulation of plant resistance to environmental stresses and can specifically bind to dehydration-responsive element/C-repeat element (DRE/CRT) proteins (G/ACCGAC) and activate expression of many stress-inducible genes. Here, we cloned and characterized a novel gene (AaDREB1) encoding the DREB1 transcription factor from the cold-tolerant plant Adonis amurensis. Quantitative real-time (qRT)-PCR results indicated that AaDREB1 expression was induced by salt, drought, cold stress, and abscisic acid application. A yeast one-hybrid assay demonstrated that AaDREB1 encodes a transcription activator and specifically binds to DRE/CRT. Furthermore, transgenic Arabidopsis and rice harboring AaDREB1 showed enhanced tolerance to salt, drought, and low temperature. These results indicated that AaDREB1 might be useful in genetic engineering to improve plant stress tolerance.


Asunto(s)
Adonis/metabolismo , Proteínas de Plantas/metabolismo , Plantas Modificadas Genéticamente/fisiología , Estrés Fisiológico/genética , Factores de Transcripción/metabolismo , Ácido Abscísico/farmacología , Adonis/genética , Secuencia de Aminoácidos , Arabidopsis/genética , Arabidopsis/crecimiento & desarrollo , Arabidopsis/metabolismo , Frío , ADN de Plantas/química , ADN de Plantas/aislamiento & purificación , ADN de Plantas/metabolismo , Sequías , Datos de Secuencia Molecular , Oryza/genética , Oryza/crecimiento & desarrollo , Oryza/metabolismo , Filogenia , Proteínas de Plantas/química , Proteínas de Plantas/genética , Plantas Modificadas Genéticamente/clasificación , Plantas Modificadas Genéticamente/genética , Plantas Modificadas Genéticamente/crecimiento & desarrollo , Plásmidos/genética , Plásmidos/metabolismo , Sales (Química)/farmacología , Alineación de Secuencia , Análisis de Secuencia de ADN , Estrés Fisiológico/efectos de los fármacos , Factores de Transcripción/química , Factores de Transcripción/genética , Técnicas del Sistema de Dos Híbridos
20.
Artículo en Inglés | MEDLINE | ID: mdl-24972145

RESUMEN

In the present study, the complete mitochondrial genome sequence of the diqing wild boar (Sus verrucosus breed diqing wild boar) was reported for the first time. The total length of the mitogenome was 16,506 bp. It contained the typical structure, including two ribosomal RNA genes, 13 protein-coding genes, 22 transfer RNA genes and one non-coding control region (D-loop region) as that of most other wild boars. The overall composition of the mitogenome was estimated to be 34.9% for A, 26.1% for T, 26.0% for C and 13.0% for G showing an A-T (61.0%)-rich feature. The mitochondrial genome analyzed here will provide new genetic resource to uncover wild boars' genetic diversity.


Asunto(s)
Composición de Base/fisiología , Genoma Mitocondrial/fisiología , Porcinos/genética , Animales , Secuencia de Bases , Cruzamiento , Proteínas Mitocondriales/genética , Datos de Secuencia Molecular , ARN/genética , ARN Mitocondrial , ARN Ribosómico/genética , ARN de Transferencia/genética
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