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1.
J Immunol ; 208(5): 1189-1203, 2022 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-35101889

RESUMEN

The small HERC family currently comprises four members (HERC3-6) involved in the regulation of various physiological activities. Little is known about the role of HERCs in IFN response. In this study, we identify a novel fish HERC member, named crucian carp HERC7, as a negative regulator of fish IFN response. Genome-wide search of homologs and comprehensive phylogenetic analyses reveal that the small HERC family, apart from HERC3-6 that have been well-characterized in mammals, contains a novel HERC7 subfamily exclusively in nonmammalian vertebrates. Lineage-specific and even species-specific expansion of HERC7 subfamily in fish indicates that crucian carp HERC7 might be species-specific. In virally infected fish cells, HERC7 is induced by IFN and selectively targets three retinoic acid-inducible gene-I-like receptor signaling factors for degradation to attenuate IFN response by two distinct strategies. Mechanistically, HERC7 delivers mediator of IFN regulatory factor 3 activator and mitochondrial antiviral signaling protein for proteasome-dependent degradation at the protein level and facilitates IFN regulatory factor 7 transcript decay at the mRNA level, thus abrogating cellular IFN induction to promote virus replication. Whereas HERC7 is a putative E3 ligase, the E3 ligase activity is not required for its negative regulatory function. These results demonstrate that the ongoing expansion of the small HERC family generates a novel HERC7 to fine-tune fish IFN antiviral response.


Asunto(s)
Factor 7 Regulador del Interferón/metabolismo , Interferones/inmunología , Reoviridae/inmunología , Rhabdoviridae/inmunología , Ubiquitina-Proteína Ligasas/metabolismo , Animales , Carpas , Línea Celular , Proteínas de Peces/genética , Células HEK293 , Humanos , Factor 7 Regulador del Interferón/genética , Proteínas de la Membrana/metabolismo , Estabilidad del ARN/genética , ARN Mensajero/genética , Transducción de Señal/inmunología , Transactivadores/genética
2.
J Immunol ; 209(7): 1335-1347, 2022 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-36165180

RESUMEN

Tripartite motif (TRIM) family proteins have come forth as important modulators of innate signaling dependent on of E3 ligase activity. Recently, several human TRIM proteins have been identified as unorthodox RNA-binding proteins by RNA interactome analyses; however, their targets and functions remain largely unknown. FTRCA1 is a crucian carp (Carassius auratus)-specific finTRIM (fish novel TRIM) member and negatively regulates the IFN antiviral response by targeting two retinoic acid-inducible gene-I (RIG-I)-like receptor (RLR) pathway molecules, that is, TANK-binding kinase 1 (TBK1) and IFN regulatory factor 7 (IRF7). In this study, we identify FTRCA1 as an RNA-binding E3 ligase and characterize the contribution of its RNA-binding activity and E3 ligase activity to fish IFN response. Besides targeting TBK1 and IRF7, FTRCA1 downregulates fish IFN response also by targeting stimulator of IFN response cGAMP interactor 1 (STING1). E3 ligase activity is required for full inhibition on the TBK1- and IRF7-mediated IFN response, but partial inhibition on the STING1-mediated IFN response. However, FTRCA1 has a general binding potential to mRNAs in vitro, it selectively binds STING1 and IRF7 mRNAs in vivo to attenuate mRNA levels, and it directly interacts with TBK1 protein to target protein degradation for downregulating the IFN response. Our results present an interesting example of a fish species-specific finTRIM protein that has acquired RNA-binding activity and E3 ligase activity to fine-tune fish IFN response.


Asunto(s)
Factor VII , ARN , Animales , Antivirales , Proteínas de Peces/genética , Humanos , Inmunidad Innata , ARN Mensajero , Tretinoina , Proteínas de Motivos Tripartitos , Ubiquitina-Proteína Ligasas
3.
Zhongguo Zhong Yao Za Zhi ; 49(3): 770-778, 2024 Feb.
Artículo en Zh | MEDLINE | ID: mdl-38621881

RESUMEN

This paper aims to study the therapeutic effect of Massa Medicata Fermentata on hyperlipidemia model rats and investigate its mechanism of hypolipidemic effect with the help of non-targeted metabolomics. The mixed hyperlipidemia model rats were constructed by giving high-fat chow. After successful modeling, the rats were divided into the model group, pravastatin sodium group(4.4 mg·kg~(-1)), lipotropic group(0.1 g·kg~(-1)), high-dose group(2.4 g·kg~(-1)), medium-dose group(1.2 g·kg~(-1)), and low-dose group(0.6 g·kg~(-1)) of Massa Medicata Fermentata, and they were administered for four weeks once daily. An equal volume of ultrapure water was given to the blank group and model group. Serum lipid level and liver hematoxylin-eosin(HE) staining were used as indicators to estimate the intervention effect of Massa Medicata Fermentata on mixed hyperlipidemia, and the changes in metabolites in plasma of mixed hyperlipidemia model rats were analyzed by non-targeted metabolomics. The mechanism of the hypolipidemic effect of Massa Medicata Fermentata was analyzed through metabolite pathway enrichment. The results showed that compared with the model group, the Massa Medicata Fermentata administration group, especially the high-dose group, could significantly reduce the content of total cholesterol(TC), triglyceride(TG), and low-density lipoprotein cholesterol(LDL-c)(P<0.05 or P<0.01), and liver HE staining revealed that the number of adipocytes in the high-dose group was reduced to some extent. The potential biomarkers obtained by non-targeted metabolomics screening included glycerol 3-phosphate, sphingomyelin, sphingosine 1-phosphate, and deoxyuridine, which were mainly involved in the sphingolipid metabolism process, glycerophospholipid metabolism process, glycerol ester metabolism pathway, and pyrimidine metabolism pathway, totaling four possible metabolic pathways related to lipid metabolism. This study provides a reference for an in-depth investigation of the hypolipidemic mechanism of Massa Medicata Fermentata, which is of great significance for further promoting the clinical application of Massa Medicata Fermentata and increasing the indications.


Asunto(s)
Medicamentos Herbarios Chinos , Hiperlipidemias , Ratas , Animales , Medicamentos Herbarios Chinos/farmacología , Hígado , Hiperlipidemias/tratamiento farmacológico , Metabolómica , Colesterol , Dieta Alta en Grasa/efectos adversos
4.
Int J Mol Sci ; 24(5)2023 Feb 27.
Artículo en Inglés | MEDLINE | ID: mdl-36902023

RESUMEN

In humans, four small HERCs (HERC3-6) exhibit differential degrees of antiviral activity toward HIV-1. Recently we revealed a novel member HERC7 of small HERCs exclusively in non-mammalian vertebrates and varied copies of herc7 genes in distinct fish species, raising a question of what is the exact role for a certain fish herc7 gene. Here, a total of four herc7 genes (named HERC7a-d sequentially) are identified in the zebrafish genome. They are transcriptionally induced by a viral infection, and detailed promoter analyses indicate that zebrafish herc7c is a typical interferon (IFN)-stimulated gene. Overexpression of zebrafish HERC7c promotes SVCV (spring viremia of carp virus) replication in fish cells and concomitantly downregulates cellular IFN response. Mechanistically, zebrafish HERC7c targets STING, MAVS, and IRF7 for protein degradation, thus impairing cellular IFN response. Whereas the recently-identified crucian carp HERC7 has an E3 ligase activity for the conjugation of both ubiquitin and ISG15, zebrafish HERC7c only displays the potential to transfer ubiquitin. Considering the necessity for timely regulation of IFN expression during viral infection, these results together suggest that zebrafish HERC7c is a negative regulator of fish IFN antiviral response.


Asunto(s)
Enfermedades de los Peces , Infecciones por Rhabdoviridae , Animales , Humanos , Pez Cebra/genética , Interferones/metabolismo , Proteínas de Pez Cebra/metabolismo , Antivirales , Ubiquitinas
5.
Zhongguo Zhong Yao Za Zhi ; 48(23): 6526-6532, 2023 Dec.
Artículo en Zh | MEDLINE | ID: mdl-38212010

RESUMEN

The fundamental principle of traditional Chinese medicine(TCM) is holism, and it is crucial for TCM to address the key issue of the "holistic view" of Chinese herbal medicine. While the overall regulatory effects of Chinese herbal medicine have been widely recognized, the holistic internal logic of individual ingredients of Chinese herbal medicines require further clarification. In order to comprehensively understand the mechanism of action of Chinese herbal medicine, this paper combined the holistic view of Chinese herbal medicine with differentiation thinking to explore the intrinsic logical relationships within Chinese herbal medicine. Starting from the perspective of the coexistence of multiple components in Chinese herbal medicine, this paper systematically examined the "self-consistent" phenomenon within single Chinese herbal medicine. This phenomenon refers to the consistent or opposing actions of various components in terms of their physical and chemical properties, pharmacokinetic effects, biological effects, flavors and properties, and TCM efficacy. The paper summarized various logical relationships of syndrome differentiation exhibited by the same Chinese herbal medicine, analyzed the underlying reasons, and focused on analyzing external factors affecting the "self-consistent" phenomenon in the efficacy of Chinese herbal medicine, aiming to better elucidate the theoretical basis of the pharmacological effects of Chinese herbal medicine, further enrich the scientific connotation of the holistic view of Chinese herbal medicine, and provide theoretical guidance for the preparation process, compatibility patterns, and formulation design of Chinese herbal medicine.


Asunto(s)
Medicamentos Herbarios Chinos , Medicina Tradicional China , Medicamentos Herbarios Chinos/farmacología , Medicamentos Herbarios Chinos/uso terapéutico
6.
Zhongguo Zhong Yao Za Zhi ; 48(17): 4702-4710, 2023 Sep.
Artículo en Zh | MEDLINE | ID: mdl-37802809

RESUMEN

This study aimed to investigate the effect and molecular mechanism of sinomenine on proliferation, apoptosis, metastasis, and combination with inhibitors in human hepatocellular carcinoma HepG2 cells and SK-HEP-1 cells. The effect of sinomenine on the growth ability of HepG2 and SK-HEP-1 cells were investigated by CCK-8 assay, colony formation assay, and BeyoClick~(TM) EdU-488 staining. The effect of sinomenine on DNA damage was detected by immunofluorescence assay, and the effect of sinomenine on apoptosis of human hepatocellular carcinoma cells was clarified by Hoechst 33258 staining and CellEvent~(TM) Cystein-3/7Green ReadyProbes~(TM) reagent assay. Cell invasion assay and 3D tumor cell spheroid invasion assay were performed to investigate the effect of sinomenine on the invasion ability of human hepatocellular carcinoma cells in vitro. The effect of sinomenine on the regulation of protein expression related to the protein kinase B(Akt)/mammalian target of rapamycin(mTOR)/signal transducer and activator of transcription 3(STAT3) signaling pathway in HepG2 and SK-HEP-1 cells was examined by Western blot. Molecular docking was used to evaluate the strength of affinity of sinomenine to the target cysteinyl aspartate specific proteinase-3(caspase-3) and STAT3, and combined with CCK-8 assay to detect the changes in cell viability after combination with STAT3 inhibitor JSI-124 in combination with CCK-8 assay. The results showed that sinomenine could significantly reduce the cell viability of human hepatocellular carcinoma cells in a concentration-and time-dependent manner, significantly inhibit the clonogenic ability of human hepatocellular carcinoma cells, and weaken the invasive ability of human hepatocellular carcinoma cells in vitro. In addition, sinomenine could up-regulate the cleaved level of poly ADP-ribose polymerase(PARP), a marker of apoptosis, and down-regulate the protein levels of p-Akt, p-mTOR, and p-STAT3 in human hepatocellular carcinoma cells. Molecular docking results showed that sinomenine had good affinity with the targets caspase-3 and STAT3, and the sensitivity of sinomenine to hepatocellular carcinoma cells was diminished after STAT3 was inhibited. Therefore, sinomenine can inhibit the proliferation and invasion of human hepatocellular carcinoma cells and induce apoptosis, and the mechanism may be attributed to the activation of caspase-3 signaling and inhibition of the Akt/mTOR/STAT3 pathway. This study can provide a new reference for the in-depth research and clinical application of sinomenine and is of great significance to further promote the scientific development and utilization of sinomenine.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Carcinoma Hepatocelular/tratamiento farmacológico , Carcinoma Hepatocelular/genética , Proteínas Proto-Oncogénicas c-akt/metabolismo , Caspasa 3/metabolismo , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Hepáticas/genética , Simulación del Acoplamiento Molecular , Sincalida/farmacología , Línea Celular Tumoral , Proliferación Celular , Células Hep G2 , Serina-Treonina Quinasas TOR/metabolismo , Apoptosis
7.
Zhongguo Zhong Yao Za Zhi ; 48(16): 4475-4482, 2023 Aug.
Artículo en Zh | MEDLINE | ID: mdl-37802874

RESUMEN

This study investigated the effect and mechanism of morin in inducing autophagy and apoptosis in hepatocellular carcinoma cells through the protein kinase B(Akt)/mammalian target of rapamycin(mTOR)/signal transducer and activator of transcription protein 3(STAT3) pathway. Human hepatocellular carcinoma SK-HEP-1 cells were stimulated with different concentrations of morin(0, 50, 100, 125, 200, and 250 µmol·L~(-1)). The effect of morin on the viability of SK-HEP-1 cells was detected by Cell Counting Kit-8(CCK-8). The effect of morin on the proliferation and apoptosis of SK-HEP-1 cells was investigated using colony formation assay, flow cytometry, and BeyoClick~(TM) EdU-488 with different concentrations of morin(0, 125, and 250 µmol·L~(-1)). The changes in the autophagy level of cells treated with morin were examined by transmission electron microscopy and autophagy inhibitors. The impact of morin on the expression levels of proteins related to the Akt/mTOR/STAT3 pathway was verified by Western blot. Compared with the control group, the morin groups showed decreased viability of SK-HEP-1 cells in a time-and concentration-dependent manner, increased number of apoptotic cells, up-regulated expression level of apoptosis marker PARP, up-regulated phosphorylation level of apoptosis-regulating protein H2AX, decreased number of positive cells and the colony formation rate, an upward trend of expression levels of autophagy-related proteins LC3-Ⅱ, Atg5, and Atg7, and decreased phosphorylation levels of Akt, mTOR, and STAT3. These results suggest that morin can promote apoptosis, inhibit proliferation, and induce autophagy in hepatocellular carcinoma cells, and its mechanism of action may be related to the Akt/mTOR/STAT3 pathway.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Proteínas Proto-Oncogénicas c-akt/genética , Proteínas Proto-Oncogénicas c-akt/metabolismo , Carcinoma Hepatocelular/tratamiento farmacológico , Carcinoma Hepatocelular/patología , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Hepáticas/patología , Serina-Treonina Quinasas TOR/genética , Serina-Treonina Quinasas TOR/metabolismo , Apoptosis , Autofagia , Proliferación Celular , Línea Celular Tumoral , Factor de Transcripción STAT3/genética , Factor de Transcripción STAT3/metabolismo
8.
Chemistry ; 28(19): e202200001, 2022 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-35156759

RESUMEN

Through systematic experiments, two novel mercury iodate sulfates, namely, Hg2 (IO3 )2 (SO4 )(H2 O) and Hg2 (IO3 )2 (SO4 ) were obtained. They crystallize in monoclinic space group C2 and C2/c, respectively. Hg2 (IO3 )2 (SO4 )(H2 O) exhibits the [Hg(IO3 )]+ polar cationic layer inherited from Hg(IO3 )2 and the three-dimensional (3D) framework inherited from HgSO4 . This enables Hg2 (IO3 )2 (SO4 )(H2 O) to generate a strong second harmonic generation (SHG) response of 6 times that of KH2 PO4 (KDP). The structure of Hg2 (IO3 )2 (SO4 ) is very similar to that of Hg2 (IO3 )2 (SO4 )(H2 O), and they can be transformed into each other. Hg2 (IO3 )2 (SO4 )(H2 O) shows a large optical band gap of 3.98 eV and a high dehydration temperature of 250 °C. This study indicates that by reasonable design, the introduction of multiple functional groups into a compound may combine their advantages to achieve good overall optical performance.

9.
Soft Matter ; 19(1): 128-136, 2022 Dec 21.
Artículo en Inglés | MEDLINE | ID: mdl-36477470

RESUMEN

Polar groups have long been recognized to greatly influence the glass transition temperature (Tg) of polymers, but understanding the underlying physical mechanism remains a challenge. Here, we study the glass formation of ring-opening metathesis polymerization (ROMP) copolymers containing polar groups by employing all-atom molecular dynamics simulations. We show that although the number of hydrogen bonds (NHB) and the cohesive energy density increase linearly as the content of polar groups (fpol) increases, the Tg of ROMP copolymers increases with the increase of fpol in a nonlinear fashion, and tends to plateau for sufficiently high fpol. Importantly, we find that the increase rate of Gibbs free energy for HB breaking gradually slows down with the increase of fpol, indicating that the HB is gradually stabilized. Therefore, Tg is jointly determined by NHB and the strength of HBs in the system, while the latter dominates. Although NHB increases linearly with increasing fpol, the HB strength increases slowly with increasing fpol, which leads to a decreasing rate of increase in Tg.

10.
J Immunol ; 205(1): 237-250, 2020 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-32471880

RESUMEN

In mammals, transcription factors of IFN-regulatory factors (IRFs) family translate viral recognition into IFN antiviral responses through translocating to nucleus and subsequently binding to the promoters of IFN and IFN-stimulated genes (ISGs). In addition to IRF1-9 conserved across vertebrates and IRF10 in teleost fish and bird, teleost fish has another novel member, IRF11; however, little is known about its role in IFN response. In this study, we provide evidence that IRF11 is present only in Osteichthyes (bony fish) but lost in tetrapods and subsequently characterize the stimulatory potential of zebrafish IRF11 to IFN antiviral response relevant to its subcellular localization and promoter binding. Overexpression of zebrafish IRF11 restricts virus replication through induction of IFN and ISGs. Zebrafish IRF11 is constitutively localized to nucleus, which is driven by a tripartite NLS motif, consisting of three interdependent basic clusters, two in DNA binding domain (DBD) and one in the region immediately C-terminal to DBD. Nuclear IRF11 binds to the IRF-binding element/IFN-stimulated response element motifs of zebrafish IFN promoters depending on the two conserved amino acids (K78, R82) within DBD helix α3. K78 and R82 also benefit zebrafish IRF11 nuclear import as two key residues positioned at the first basic cluster of the tripartite NLS motif. Such features enable zebrafish IRF11 to function as a positive transcription factor for fish IFN antiviral response. Our results identify a unique tripartite NLS motif that integrates DNA-binding activity and nuclear import ability, allowing zebrafish IRF11 to initiate IFN and ISG expression.


Asunto(s)
Factor 1 Regulador del Interferón/metabolismo , Interferones/genética , Infecciones por Rhabdoviridae/veterinaria , Factores de Transcripción TFII/metabolismo , Proteínas de Pez Cebra/metabolismo , Pez Cebra/inmunología , Secuencias de Aminoácidos/genética , Secuencia de Aminoácidos/genética , Animales , Línea Celular , Núcleo Celular/metabolismo , Secuencia Conservada/genética , Regulación de la Expresión Génica/inmunología , Interacciones Huésped-Patógeno/genética , Interacciones Huésped-Patógeno/inmunología , Factor 1 Regulador del Interferón/genética , Interferones/metabolismo , Regiones Promotoras Genéticas/genética , Dominios Proteicos/genética , Elementos de Respuesta , Rhabdoviridae/inmunología , Infecciones por Rhabdoviridae/inmunología , Infecciones por Rhabdoviridae/virología , Transducción de Señal/genética , Factores de Transcripción TFII/genética , Replicación Viral/inmunología , Pez Cebra/genética , Pez Cebra/metabolismo , Pez Cebra/virología
11.
Angew Chem Int Ed Engl ; 60(32): 17426-17429, 2021 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-34060191

RESUMEN

An organic-inorganic hybrid polyiodate, namely, [o-C5 H4 NHOH]2 [I7 O18 (OH)]⋅3 H2 O (I), featuring a novel branched polyiodate chain has been obtained by evaporation method. [o-C5 H4 NHOH]2 [I7 O18 (OH)]⋅3 H2 O (I) crystalizes in the polar space group Ia and features an [I7 O18 (OH)] ∞ 2 - branched polyiodate chain in which [I3 O9 ]3- trimers are grafted on the same side of the one-dimensional (1D) chain based on [I4 O11 (OH)]3- tetramers. The asymmetric organic amine groups are beneficial to the polymerization of iodate groups and inducing the formation of the non-centrosymmetric (NCS) structure. Compound I exhibits a rather large Second-Harmonic- Generation (SHG) signal of 8.5×KH2 PO4 (KDP) upon 1064 nm laser radiation, a moderate band gap of 3.90 eV and a high laser-induced-damage-threshold (LIDT) of 182.34 MW cm-2 , hence it is a promising new SHG material. The relationship between the structures of the organic amine groups and the overall structures has been also analyzed.

12.
Surg Radiol Anat ; 42(2): 143-153, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-31563971

RESUMEN

PURPOSE: The connective tissue between suboccipital muscles and the cervical spinal dura mater (SDM) is known as the myodural bridge (MDB). However, the adjacent relationship of the different connective tissue fibers that form the MDB remains unclear. This information will be highly useful in exploring the function of the MDB. METHODS: The adjacent relationship of different connective tissue fibers of MDB was demonstrated based upon three-dimensional visualization model, P45 plastinated slices and histological sections of human MDB. RESULTS: We found that the MDB originating from the rectus capitis posterior minor muscle (RCPmi), rectus capitis posterior major muscle (RCPma) and obliquus capitis inferior muscle (OCI) in the suboccipital region coexists. Part of the MDB fibers originate from the ventral aspect of the RCPmi and, together with that from the cranial segment of the RCPma, pass through the posterior atlanto-occipital interspace (PAOiS) and enter into the posterior aspect of the upper cervical SDM. Also, part of the MDB fibers originate from the dorsal aspect of the RCPmi, the ventral aspect of the caudal segment of the RCPma, and the ventral aspect of the medial segment of the OCI, enter the central part of the posterior atlanto-axial interspace (PAAiS) and fuse with the vertebral dura ligament (VDL), which connects with the cervical SDM. CONCLUSIONS: Our findings prove that the MDB exists as a complex structure which we termed the 'myodural bridge complex' (MDBC). In the process of head movement, tensile forces could be transferred possibly and effectively by means of the MDBC. The concept of MDBC will be beneficial in the overall exploration of the function of the MDB.


Asunto(s)
Anatomía Transversal , Articulación Atlantooccipital/anatomía & histología , Tejido Conectivo/anatomía & histología , Duramadre/anatomía & histología , Músculos del Cuello/anatomía & histología , Articulación Atlantooccipital/diagnóstico por imagen , Tejido Conectivo/diagnóstico por imagen , Tejido Conectivo/fisiología , Duramadre/diagnóstico por imagen , Movimientos de la Cabeza/fisiología , Humanos , Imagenología Tridimensional , Masculino , Persona de Mediana Edad , Modelos Anatómicos , Músculos del Cuello/diagnóstico por imagen , Fotograbar , República de Corea , Proyectos Humanos Visibles
13.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 41(5): 646-657, 2019 Oct 30.
Artículo en Zh | MEDLINE | ID: mdl-31699195

RESUMEN

Objective To summarize the characteristics of Chinese coccidioidomycosis cases, improve the diagnosis and treatment of this disease and prevent misdiagnosis as well as therapeutic error.Methods Search in databases including Medline,Wanfang,and CNKI using "Coccidioidomycosis" and "China" as index words yielded 23 articles that reported a total of 32 Chinese coccidioidomycosis cases.In addition,one patient with disseminated coccidioidomycos was treated in our center in April 2016.The demographic data,site of infection,clinical manifestations,past medical history,exposure history,imaging and laboratory findings,and pathological features of these 33 patients were analyzed.Results Among these 33 patients,7(21.2%)had visited an epidemic area and 6(18.2%)were immunocompromised.The disease involved the respiratory system,skin,bone,central nervous system,cornea,and stomach in 24,6,3,2,1,and 1 patients,respectively.Eight patients (24.2%) had multiple system involvement,and three of them died.The imaging findings included pulmonary nodules(n=14),mediastinal lymphadenopathy(n=5),solid shadow(n=4),cavity(n=4),pleural effusion(n=3),multiple plaques(n=2)and masses(n=2).Coccidiolys cysts were detected in the affected tissues(n=28)or in pus,exudate or pleural smear(n=3);in addition,coccidioides mycelium and spores were found in the sputum,pus,and tissue cultures in 4 cases,among whom only 2 cases were confirmed by serological examination.The treatments included triazoles(n=20),systemic or local administration of amphotericin B(n=13),surgical resection of the lesion(n=8),and intravenous gamma globulin(n=1).Five patients died,among whom three had underlying diseases that caused immunosuppression and one was an infant.The prognoses were relatively good in the remaining patients.Conclusions Early diagnosis and proper treatment can achieve good prognosis in coccidioidomycosis patients.Multi-system involvement and immunosuppression are risk factors for poor prognosis of coccidioidomycosis.For these patients,adequate and full-course medication may prevent rapid disease progression.


Asunto(s)
Coccidioidomicosis/diagnóstico , Coccidioidomicosis/patología , China , Coccidioides , Coccidioidomicosis/terapia , Humanos , Pronóstico
15.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 48(3): 431-434, 2017 May.
Artículo en Zh | MEDLINE | ID: mdl-28616920

RESUMEN

OBJECTIVES: To investigate the association of growth hormone (GH) and insulin-like growth factor (IGF-1) burden with the cardiac structural and functional changes in acromegaly patients. METHODS: Ninety-nine acromegaly patients were enrolled in this study. According to the normal range of echocardiographic parameters of Peking Union Medical College Hospital, the patients were divided into parameter normal group and abnormal group. Correlation analyses were conducted between duration of disease, mean GH, mean IGF-1, GH burden, IGF-1 burden and echocardiography data retrospectively. RESULTS: Forty eight cases (48.5%) was diagnosed as abnormal echocardiography, including enlargement of the cardiac cambers (29.3%), valvular diseases (15.1%), dilation of aortic root (5.1%), functional abnormal of left ventricle (19.2%) and wall motion abnormalities (1.0%). The average GH and IGF-1 burdens in echocardiography abnormal group (n=48) were higher than those in the normal group (n=51), without statistical significant except for the left ventricle end-systolic diameter (LVESD) (P=0.018) in GH burden comparison and E/A (P=0.011) and left atrium longitudinal dimension (LALD) (P=0.017) in IGF-1 burden comparison. Abnormal diastolic function group (n=18) had similar GH burden with the normal group (n=81) (P=0.419), but had higher IGF-1 burden than the normal group did (P=0.018).The GH burden correlated with left ventricle end-diastolic diameter (LVEDD) and LVESD, and the IGF-1 burden correlated with left ventricular ejection fraction (LVEF) , LALD, right ventricle longitudinal dimension( RVLD), Left ventricular posterior wall thickness (LVPWT), LVEDD, LVESD, and E/A ratio statistical significantlly (P<0.05). CONCLUSIONS: There exist associations of GH and IGF-1 burden with echocardiography abnormalities and cardiac complications.


Asunto(s)
Acromegalia/patología , Hormona de Crecimiento Humana/análisis , Factor I del Crecimiento Similar a la Insulina/análisis , Humanos , Estudios Retrospectivos
16.
Cell Tissue Res ; 366(2): 411-425, 2016 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-27324125

RESUMEN

Increased circulating syncytiotrophoblast microparticles (STBMs) are often associated with preeclampsia (PE) but the molecular mechanisms regulating STBM shedding remain elusive. Experimental evidence has shown that actin plays a key role in STBM shedding and that Rho/ROCK is important in regulating actin rearrangement. To investigate the role of RhoB/ROCK-regulated actin arrangement in STBM shedding in PE, chorionic villous explants were prepared from placenta of patients with normotensive or PE pregnancies and BeWo cells were fused to imitate syncytiotrophoblasts. The oxygen-glucose deprivation (OGD) conditions were applied to imitate the pathophysiology of PE in vitro. The results showed that RhoB and ROCK were activated in the preeclamptic placenta, accompanied by increased actin polymerization and decreased outgrowing microvilli. In villous tissue cultures or BeWo cells, OGD activated RhoB, ROCK1 and ROCK2 and promoted STBM shedding and actin stress fibers formation. In BeWo cells, RhoB overexpression activated ROCK1 and ROCK2, leading to F-actin redistribution and STBM shedding and the OGD-induced actin polymerization and STBM shedding could be reversed by RhoB or ROCK knockdown. These results reveal that RhoB and ROCK play a key role in PE by targeting STBM shedding through actin rearrangement and that RhoB/ROCK intervention may be a potential therapeutic strategy for PE.


Asunto(s)
Micropartículas Derivadas de Células/metabolismo , Glucosa/deficiencia , Oxígeno/farmacología , Preeclampsia/metabolismo , Preeclampsia/patología , Trofoblastos/metabolismo , Quinasas Asociadas a rho/metabolismo , Proteína de Unión al GTP rhoB/metabolismo , Actinas/metabolismo , Apoptosis , Línea Celular Tumoral , Activación Enzimática , Femenino , Humanos , Microvellosidades/metabolismo , Polimerizacion , Embarazo
17.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 38(1): 73-7, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26956860

RESUMEN

OBJECTIVE: To explore the effect of transsphenoidal adenectomy on glucose tolerance status in patients with growth hormone (GH)-secreting pituitary adenoma. METHODS: The clinical data of 105 patients with GH-secreting pituitary adenoma who underwent transsphenoidal adenectomy in our department in 2013 were retrospectively analyzed. The glucose tolerance status, GH level, and insulin-like growth factor-1 (IGF-1) level before and after surgery were compared. RESULTS: Among these 105 patients, the blood glucose tolerance status included normal glucose tolerance (NGT) in 47 cases (44.8%), early carbohydrate metabolism disorders (ECMDs) in 26 cases (24.8%), and diabetes mellitus (DM) in 32 cases (30.5%) before surgery. After the surgery, the fasting blood glucose (P=0.006, P=0.017) and postprandial blood glucose (P=0.000, P=0.000) in the ECMDs and DM groups were significantly improved. Also, the random GH (P=0.001, P=0.004, P=0.001), nadir GH (P=0.000, P=0.001, P=0.001), and IGF-1 (P=0.005, P=0.000, P=0.000) significantly decreased during the follow-up period in NGT, ECMDs and DM groups. Compared with ECMDs and DM groups, the decrease in fasting blood glucose (P=0.029, P=0.000), postprandial blood glucose (P=0.003, P=0.000), and serum IGF-1 (P=0.048, P=0.000) were more significant in DM group. CONCLUSIONS: Transsphenoidal adenectomy can improve the blood glucose, GH, and IGF-1 levels in patients with growth hormone-secreting pituitary adenoma. Meanwhile,the surgery has a better effect in improving the glucose tolerance status and IGF-1 in patients with preoperatively confirmed DM.


Asunto(s)
Adenoma , Adenoma Hipofisario Secretor de Hormona del Crecimiento , Glucemia , Diabetes Mellitus , Glucosa , Hormona de Crecimiento Humana , Humanos , Factor I del Crecimiento Similar a la Insulina , Estudios Retrospectivos
18.
Geriatr Gerontol Int ; 24(3): 297-304, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38319068

RESUMEN

OBJECTIVE: This study aimed to examine the effects of binaural beat music (BBM) on sleep quality, heart rate variability, and depression in older people with poor sleep quality in a long-term care institution. METHODS: A single-blind randomized controlled trial design was employed, and 64 older participants with poor sleep quality were recruited from a long-term care institution in Taiwan. Participants were randomized into the BBM group or control group and received 14 days of intervention. During the intervention period, participants in the experimental group listened to 20 min of Taiwanese Hokkien oldies embedded with BBM once in the morning and afternoon three times a week. Participants in the control group only listened to Taiwanese Hokkien oldies. Questionnaires and heart rate variability analysis were used to assess participants' sleep quality, heart rate variability, and depressive symptoms. RESULTS: Significant improvements were observed in sleep quality, along with an increase in heart rate variability means of heart rate and normal sinus beats, and a decrease in low-frequency normalized units and depression severity in the BBM group after the intervention. In the control group, effects on sleep quality were inconsistent, heart rate variability showed significant improvements in some autonomic nervous function regulation, and depression severity was significantly decreased. Furthermore, the BBM group showed a significant improvement in sleep quality and a significant reduction in sympathetic nervous activity compared with the control group. CONCLUSION: This study demonstrates that 14 days of BBM intervention, a non-invasive intervention, could improve sleep quality and depression in older people with poor sleep quality in long-term care institutions. Geriatr Gerontol Int 2024; 24: 297-304.


Asunto(s)
Música , Trastornos del Inicio y del Mantenimiento del Sueño , Humanos , Anciano , Calidad del Sueño , Depresión , Frecuencia Cardíaca/fisiología , Cuidados a Largo Plazo , Método Simple Ciego
19.
Microbiol Res ; 280: 127588, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38163390

RESUMEN

Fungi play a crucial role in decomposing litter and facilitating the energy flow between aboveground plants and underground soil in forest ecosystems. However, our understanding how the fungal community involved in litter decomposition responds during forest succession, particularly in disease-driven succession, is still limited. This study investigated the activity of degrading enzyme, fungal community, and predicted function in litter after one year of decomposition in different types of forests during a forest succession gradient from coniferous to deciduous forest, induced by pine wilt disease. The results showed that the weight loss of needles/leaves and twigs did not change along the succession process, but twigs degraded faster than needles/leaves in both pure pine forest and mixed forest. In pure pine forest, peak activities of enzymes involved in carbon degradation (ß-cellobiosidase, ß-glucosidase, ß-D-glucuronidase, ß-xylosidase), nitrogen degradation (N-acetyl-glucosamidase), and organic phosphorus degradation (phosphatase) were observed in needles, which subsequently declined. The fungal diversity and evenness (Shannon's diversity and Shannon's evenness) dropped in twig from coniferous forest to mixed forest during the succession. The dominant phyla in needle/leaf and twig litters were Ascomycota (46.9%) and Basidiomycota (38.9%), with Lambertella pruni and Chalara hughesii identified as the most abundant indicator species. Gymnopus and Desmazierella showed positively correlations with most measured enzyme activities. Functionally, saprotrophs constituted the main trophic mode (47.65%), followed by Pathotroph-Saprotroph-Symbiotroph (30.95%) and Saprotroph-Symbiotroph (10.57%). The fungal community and predicted functional structures in both litter types shifted among different forest types along the succession. These findings indicate that the fungal community in litter decomposition responds differently to disease-induced succession, leading to significant shifts in both the fungal community structure and function.


Asunto(s)
Agaricales , Micobioma , Pinus , Ecosistema , Hongos/metabolismo , Bosques , Suelo/química , Microbiología del Suelo
20.
JACC Adv ; 3(4): 100909, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38939657

RESUMEN

Background: There is controversy regarding sex differences in short-term mortality in acute type A aortic dissection (ATAAD). Objectives: This study aimed to investigate the impact of sex differences on 30-day operative mortality after ATAAD surgery and to determine if other covariates modify the association. Methods: Consecutive patients (N = 5670) with surgically repaired ATAAD were identified from the multicenter China 5A study. The primary outcome was operative mortality. The age dependency was modeled using a cubic spline curve. Results: There were 1,503 females (26.5%) and 4,167 males (73.5%). Females were older and had a lower percentage of comorbidities compared with males. Females had higher mortality compared to males (10.2% vs 8.2%, P = 0.019); however, there was no difference after propensity analyses (adjusted OR: 1.334 [95% CI: 0.918-1.938]). There was an interaction with sex and age (P interaction = 0.035): older age was associated with higher odds of operative mortality among females (OR: 1.045 [95% CI: 1.029-1.061]) compared with males (OR: 1.025 [95% CI: 1.016-1.035]). The risk of mortality for males and females appears to diverge at 55 years of age (P interaction = 0.019): females under 55 years of age had similar odds to males (OR: 0.852 [95% CI: 0.603-1.205]) but higher odds when over 55 years (OR: 1.420 [95% CI: 1.096-1.839]) compared to males. Conclusions: Under the age of 55 years, females have similar odds of operative mortality compared with males; however, over the age of 55 years females have higher odds than males. Understanding differences in risk allows for individualized treatment strategies. (Additive Anti-inflammatory Action for Aortopathy & Arteriopathy; NCT04398992).

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