World J Otorhinolaryngol Head Neck Surg
June 2024
Objective: To investigate the correlation between GAL-3, Klotho, calcium and phosphorus indexes and cardiovascular complications in patients with chronic kidney disease (CKD).
Methods: This is a retrospective study. Forty patients with CKD and cardiovascular complications admitted to the Affiliated Hospital of Hebei University from February 20, 2022 to February 20, 2023 were selected as the experimental group, and another 40 patients with CKD without cardiovascular complications were selected as the control group.
To study the species of lanthanum (III) nitrate (La[NO]) dispersed in cell media and the effect on the osteoblast differentiation of bone marrow stroma cells (BMSCs). Different La-containing precipitations were obtained by adding various concentrations of La(NO) solutions to Dulbecco's modified Eagle medium (DMEM) or DMEM with fetal bovine serum (FBS). A series of characterisation methods, including dynamic light scattering, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, and protein quantification were employed to clarify the species of the different La-containing precipitations.
View Article and Find Full Text PDFZnTiO and ZnTiO-CeO microspheres with particle sizes of about 100-300 nm were synthesized for the first time by a simple solvothermal process followed by calcination. The results indicate that CeO modification does not alter the morphology of the microspheres. ZnTiO-CeO (0, 3, 6, and 9 wt%) show an initial charge (discharge) capacity of 171.
View Article and Find Full Text PDFNa2Li2Ti6O14 particles were prepared by a simple solid-state process, and then g-C3N4-coated Na2Li2Ti6O14 composites were constructed by a facile solution route for the first time. The g-C3N4-coated Na2Li2Ti6O14 multicomponent composites because of their unique architecture as negative materials for Li-ion batteries can be expected to exhibit a significantly improved cycling stability and reversible capacity even at high rates. g-C3N4 (5 wt%)-coated Na2Li2Ti6O14 shows a discharge (charge) capacity of 184.
View Article and Find Full Text PDFMaterials (Basel)
October 2019
In this paper, the types, formation time, structural morphology, and influence of steel corrosion products in seawater and sea-sand concrete were studied, and the intermediate and final products of steel corrosion under different conditions were determined. The corrosion products of steel in these concrete specimens under two curing methods were studied separately by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). Due to the presence of a large amount of chloride ions in the concrete, the rust layer on the surface of a steel bar contained many intermediates, such as lepidocrocite (γ-FeOOH) and aka-ganeite (β-FeOOH).
View Article and Find Full Text PDFChronic rhinosinusitis (CRS) is a well-known disease encountered in the department of otorhinolaryngology, yet little is known about its pathogenesis. Autophagy, a lysosome-dependent degradation process, has been reported to be involved in the process of many chronic inflammatory diseases. Here we tried to evaluate the function of autophagy in CRS as well as explore the related mechanisms.
View Article and Find Full Text PDFObjective: In order to investigate the effect and mechanism of estrogen in rotenone-induced Parkinson's disease (PD) rats in different age groups.
Methods: we established rat models of PD by rotenone at different interventions. Then, behavioral tests, immunohistochemistry, western blot, high-performance liquid chromatography-electrochemical detector (HPLC-ECD) and electron microscopy were performed.
Allergic rhinitis (AR) is one of the common disorders in airway allergic inflammation. The pathogenesis of AR is unclear. It is accepted that immune deregulation is associated with the pathogenesis of AR.
View Article and Find Full Text PDFRecently, accumulating evidence has implicated the dysregulation of autophagy as underlying the pathophysiology of several neurodegenerative diseases. The human neuronal cell line SH-SY5Y was exposed to 1-Methyl-4-phenylpyridinium (MPP(+)). The mechanism is that the sustained activation of the MAPK/ERK pathway by MPP(+) alters autophagy selectively at the maturation step, significant increasing in autophagy formation and delaying in autophagy degradation in SHSY5Y cells.
View Article and Find Full Text PDFIncreased autophagic vacuoles (AVs) occur in injured or degenerating neurons, under both developmental and pathological situations. Although an induced autophagy has been shown in inflammation response to cell factors, the underlying mechanism(s) remain(s) unknown. Here, we show that both cell factor IL-6 and environmental toxin MPP(+) promote the formation of vacuolation in SHSY5Y cells.
View Article and Find Full Text PDFExtracellular acidic pH-activated chloride channels (ICl,acid) have been found in a variety of mammalian cells. In the present study, the expression and regulation of ICl,acid were investigated in THP-1 cells. Patch clamp recordings demonstrated that an extracellular acidic solution induced an outward rectified current, which could be blocked by the Cl(-) channel blocker.
View Article and Find Full Text PDFIn order to investigate the mechanisms and therapeutic effects of valproate combined with lithium carbonate on mouse model of Parkinson's disease (PD), male C57BL/6 mice were injected into intraperitoneal with valproate (20 μg/ml) combined with lithium carbonate (10 μg/ml) for 7 days following 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP) (30 mg/kg) administration, and the effects on motor function were analyzed. Immunohistochemistry and Western blotting were used to detect alterations in the expression of PD biomarkers, including tyrosine hydroxylase (TH), and the level of autophagy was evaluated by the detection of microtubule-associated protein light chain 3 (LC3). In addition, the levels of monoamine neurotransmitters were measured in the striatum using high performance liquid chromatography (HPLC).
View Article and Find Full Text PDFZhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
January 2012
Objective: To present the surgical technique and clinical effect of transnasal endoscopic repair of cerebrospinal fluid (CSF) rhinorrhea.
Methods: From 1996 to 2010, 54 patients with CSF rhinorrhea were treated with intranasal endoscopic surgery, including 25 patients with traumatic CSF rhinorrhea, 17 patients with spontaneous CSF rhinorrhea, and 12 patients with iatrogenic CSF rhinorrhea. The temporalis muscle, temporalis fascial, middle turbinate mucosa, nasal septum mucosa, inferior turbinate mucosa, fascia lata, leg muscle, abdominal fat, uncinate process mucosa and sinus mucosa were used to repair the fistulae.
Introduction: Congenital choanal atresia is a relatively rare deformity, especially bilateral congenital choanal atresia. We report a case of bilateral congenital choanal atresia in a 22-year-old Chinese man, who was also diagnosed with congenital right accessory nasal deformity, osteoma of his left ethmoid sinus and congenital keratoleukoma of his right eye.
Case Presentation: A 22-year-old Chinese man presented with mouth breathing, sleep snoring and difficult feeding after birth, with no olfactory sensation.
Objective: The objectives of this study were to measure the anesthesiologists' knowledge and attitudes about OSA and assess the need for additional educational programs focusing on OSA.
Methods: The Obstructive Sleep Apnea Knowledge and Attitude Questionnaire (OSAKA) developed by Helena Metal was translated into Chinese and distributed to anesthesiologists from Shandong Province. Anesthesiologists completed the OSAKA questionnaire containing sections regarding knowledge (18 items) and attitudes about OSA (5 items).
Conclusion: The tumor's grade, rather than the tumor's location, was related to the opportunity of preserving laryngeal functions in patients with pyriform sinus cancer. The survival rate decreased significantly with the increase of tumor grade or node grade. Preservation of laryngeal functions is a safe and promising method without compromising the survival rate of patients with pyriform sinus cancer.
View Article and Find Full Text PDFThe role of astrocytes in microglia-induced neuronal death remains controversial. In this study, astrocytes and astrocyte-derived conditioned media (ACM) supported the survival of dopaminergic neurons, and the former was more effective than the latter. In the presence of astrocytes, low concentrations of LPS enhanced the survival of dopaminergic neurons, while high concentrations attenuated survival.
View Article and Find Full Text PDFZhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
April 2008
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi
October 2007
Aim: To investigate the changes of growth of astrocytes administrated with lipopolysaccharide (LPS) and the probable mechanisms.
Methods: LPS was administrated to rat astrocytes for 1 h, 6 h, 24 h and 48 h, and the changes of growth of astrocytes were detected by MTT method. Meanwhile, the long-term changes of growth of astrocytes after administration with LPS for 24 h were also studied.
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
September 2005
Objective: To review the experience of different surgical construction methods for hypopharyngeal cancer with cervical esophageal invasion.
Methods: From 1989 to 2000,forty-eight patients with advanced hypopharyngeal cancer and cervical esophageal invasion were retrospectively reviewed, including 38 males and 10 females. The median age was 54.
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
June 2005
Objective: To explore the surgical techniques in surgical treatment of postcricoid carcinoma.
Methods: Twenty-one cases with postcricoid carcinoma were treated surgically. The TNM stage were as follows: T3NOM0 5 cases, T3N1M0 1 case, T3N2M0 2 cases, T4NOM0 7 cases, T4N1M0 4 cases, T4N2M0 1 case, T4N3M0 1 case.
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
March 2005
Objective: To explore the feasibility and the related surgical techniques of laryngeal function preservation in surgical treatment of pyriform sinus cancer.
Methods: Two hundred and thirty cases (stage I, 6; stage II, 10; stage III, 91; stage IV, 123) with pyriform sinus cancer were treated surgically from 1978 to 1996 in the Department of Otorhinolaryngology of Qilu Hospital of Shandong University. The methods of removing tumor and repairing surgical defects were depended on the extension of lesions.