Αρχειοθήκη ιστολογίου

Τρίτη 25 Ιανουαρίου 2022

Effectiveness of submucosal turbinoplasty in refractory obstructive rhinitis: a prospective comparative trial

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Eur Arch Otorhinolaryngol. 2022 Jan 25. doi: 10.1007/s00405-022-07267-0. Online ahead of print.

ABSTRACT

OBJECTIVE: Refractory inferior turbinate hypertrophy requires a surgical approach to address symptomatic complaints. Submucosal approaches demonstrated their efficacy in restoring respiratory function and respecting the nasal mucosa. Microdebrider-assisted turbinoplasty (MAT) tools effectively reduces the soft tissue, exploiting a very different principle from the kinetic energy of radiofrequency. Thus, we aimed to compare the microdebrider-assisted turbinoplasty and the quantum molecular resonance (QMR) to assess patients' perspectives and respiratory outcomes.

METHODS: Subjects with persistent bilateral nasal blockage due to inferior turbinates hypertrophy were prospectively recruited from the University Medical Center. We randomly assigned the patients to each treatment and performed symptom evaluation via the visual analog score and endoscopic assessment at baseline and 30-, 90-, and 180-day post-treatment.

RESULTS: Seventy participants completed the evaluations, 35 in MAT and 35 in the QMR group. Nasal complaints were significantly reduced after 1 month using both methods. Although the MAT group reported higher postoperative bleeding and edema than QMR group, similar significant reductions were seen for turbinate size at long-term follow-up. Conversely, the MAT group reported greater VAS outcomes than QMR from the first postoperative month. In addition, MAT showed a longer operating time, although this difference was not statistically significant (p < 0.05).

CONCLUSION: MAT allows effective control of nasal symptoms by reducing the size of turbinates in patients with lower turbinate hypertrophy. Although QMR may cause fewer postoperative complications, functional results are comparable to long-term follow-up.

PMID:35076746 | DOI:10.1007/s00405-022-07267-0

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Nutritional status at diagnosis is prognostic for pharyngeal cancer patients: a retrospective study

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Eur Arch Otorhinolaryngol. 2022 Jan 25. doi: 10.1007/s00405-021-07222-5. Online ahead of print.

ABSTRACT

BACKGROUND: Malnutrition in head and neck cancer (HNC) patients is associated with increased morbidity and mortality. Several nutrition indicators have been reported to be related to the prognosis of HNC. However, the prognostic effect of these multiple nutrition factors in HNC is not well elucidated. The aim of this study was to evaluate the prognostic effect of these factors, including the novel hemoglobin, albumin, lymphocyte, and platelet (HALP) score, for pharyngeal cancers.

MATERIAL AND METHODS: From 2008 to 2019, a total of 319 pharyngeal cancer patients were recruited. We collected adult patients with a diagnosis of nasopharyngeal carcinoma, oropharyngeal carcinoma and hypopharyngeal carcinoma. Patients who completed definite staging workup and treatment were selected for analysis. We traced nutritional and hematologic al parameters, including body mass index (BMI), albumin, and complete blood count, for survival analysis.

RESULTS: We found that multiple nutritional markers, including BMI, hemoglobin, albumin, prognostic nutritional index (PNI), nutritional risk index (NRI) and HALP score, were important predictors for pharyngeal cancers in univariate Cox regression analysis. In multivariate analysis, we found that the HALP score was still an independent factor (HR: 1.62, 1.13-2.32 for overall survival [OS]) after adjusting of gender, age, cancer site, clinical stage, and BMI. The PNI was the most important independent factor for OS (HR: 3.12, 2.18-4.47) and cancer-specific survival (HR: 2.88, 1.88-4.41) in multivariate analysis.

CONCLUSION: We found that multiple nutrition markers, including BMI, hemoglobin, albumin, PNI, NRI and HALP score, are important predictors for pharyngeal cancers. This is the first report confirming the prognostic effect of the HALP score for HNCs. Nutritiona l status at diagnosis should be given more attention in pharyngeal cancer patients.

PMID:35076744 | DOI:10.1007/s00405-021-07222-5

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The differences in distant metastatic patterns and their corresponding survival between thyroid cancer subtypes

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Abstract

Introduction

This study aimed to systematically elucidate the metastatic patterns and their corresponding survival of each thyroid cancer subtype at time of diagnosis.

Methods

We accessed the Surveillance, Epidemiology, and End Results (SEER) database from 2010 to 2018 to search for primary thyroid cancers with DM at presentation (M1).

Results

We included 2787 M1 thyroid cancers for statistical analyses and the incidence of DM at presentation was 2.4%. Lung was the most common metastatic site for anaplastic thyroid carcinoma (ATC), poorly differentiated thyroid carcinoma (PDTC), papillary thyroid carcinoma (PTC), and oncocytic (Hurthle) cell carcinoma (HCC) whereas bone is the favorable disseminated site of follicular thyroid carcinoma (FTC) and medullary thyroid carcinoma (MTC). Patients with multi-organ metastases had the worst survival whereas bone metastases were associated with a favorable outcome (p < 0.001).

Conclusion

There are significant differences in DM patterns of thyroid cancer subtypes and their corresponding survival.

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A study of 285 cases of cranial vault suture closure in Chinese adults

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Surg Radiol Anat. 2022 Jan 25. doi: 10.1007/s00276-021-02854-y. Online ahead of print.

ABSTRACT

PURPOSE: To examine the presence and characteristics of cranial vault suture closure in Chinese adults and to explore whether craniosacral therapy (CST) manipulation is rational from the anatomical perspective.

METHODS: Anthropological non-metric observation and craniometry were used to study 285 dry skull specimens of Chinese adults.

RESULTS: A total of 91 specimens w ith closed extracranial sutures were observed, with an occurrence rate of 31.93%. Based on the mode of closure, there were 32 cases of single type closure, with sagittal suture closure predominating with 20 cases (21.98%); 59 cases of composite closure, with a partial closure of coronal suture + sagittal suture + lambdoid suture predominating with 26 cases (28.57%). In terms of the degree of closure, there were 13 cases (14.28%) of sagittal suture grade 0 closure and 78 cases (85.72%) of grade 1 - 4 closure; 34 cases (37.36%) of coronal suture grade 0 closure and 57 cases (62.64%) of grade 1 - 4 closure; 47 cases (51.65%) of lambdoid suture grade 0 closure and 44 cases (48.35%) of grade 1 - 4 closure. The segment and degree of coronal suture closure (46, 80.7%) and lambdoid suture (31, 70.45%) were mostly left-right symmetrical. The bone surfaces on either side of the cranial vault sutures are embedded in each other, forming a rough, complex and interlocking bone-suture-bone structu re.

CONCLUSION: This study observed the closure of the cranial vault suture, summarized its characteristics, and explored the irrationality of the CST manipulation. The anatomical characteristics of the cranial suture dictate that manipulation cannot push the cranial suture at will.

PMID:35076751 | DOI:10.1007/s00276-021-02854-y

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Δευτέρα 24 Ιανουαρίου 2022

MicroRNA-195-5p inhibits the progression of hemangioma via targeting SKI

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Exp Ther Med. 2022 Feb;23(2):165. doi: 10.3892/etm.2021.11088. Epub 2021 Dec 22.

ABSTRACT

Hemangioma (HA), which is characterized by aberrant endothelial cell proliferation in blood vessels, is a common tumor during infancy. MicroRNAs (miRNAs/miRs) collectively participate in the development of HA; however, the potential roles of miR-195-5p in HA are not completely understood. The aim of the present study was to investigate the roles of miR-195-5p in HA. In the present study, miR-195-5p was found to be downregulated in HA cells, such as the XPTS-1 human infantile hemangioma-derived endothelial cell line and the EOMA hemangioendothelioma cell line. Overexpression of miR-195-5p was shown to suppress HA cell viability, colony formation and proliferation, and induced HA cell apoptosis. Furthermore, miR-195-5p downregulated Bcl-2 expression and upregulated Bax and Bcl-2 expression levels. V-ski sarcoma viral oncogene homolog (SKI) was ident ified as a target of miR-195-5p. Co-transfection of miR-195-5p mimics and SKI 3'-untranslated region wild-type decreased HA cell luciferase activity. SKI overexpression alleviated the miR-195-5p-induced decrease in HA cell proliferation and increased HA cell apoptosis. In addition, the regulatory role of miR-195-5p on the expression of Bcl-2, Bax and poly(ADP-ribose) polymerase was reversed by SKI. Collectively, the results of the present study demonstrated that miR-195-5p suppressed HA progression and its effects were mediated via SKI. Therefore, the miR-195-5p/SKI axis may represent a novel therapeutic target for HA.

PMID:35069846 | PMC:PMC8753966 | DOI:10.3892/etm.2021.11088

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Synergistic effect of Bruton's tyrosine kinase and TNF-α in the regulation of rheumatoid arthritis and underlying mechanisms

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Exp Ther Med. 2022 Feb;23(2):141. doi: 10.3892/etm.2021.11064. Epub 2021 Dec 14.

ABSTRACT

The presence of Bruton's tyrosine kinase (BTK) in macrophages has been recommended as a promising therapeutic target for rheumatoid arthritis (RA). In addition, activated macrophages in the inflamed joints of patients with RA can also produce a plethora of cytokines, such as TNF-α. The aim of the present study was to investigate the potential role of BTK and TNF-α in the regulation of RA. The results demonstrated that higher levels of BTK and TNF-α were observed in macrophages in inflamed RA joints compared with those in normal joint tissues. Subsequently, the role of BTK and TNF-α in the regulation of cellular process in inflammatory macrophages was analyzed. It was demonstrated that aberrant expression of BTK and TNF-α in inflammatory macrophages can lead to higher cell proliferation rates. Once the expression of BTK or TNF-α was restricte d by using short interfering (si)RNAs (siBTK or siTNF-α), the activity of inflammatory macrophages was significantly downregulated. Of note, when the expression of BTK and TNF-α was simultaneously decreased, the proliferation rate of inflammatory macrophages was inhibited to the greatest extent. Subsequently, the underlying mechanisms through which BTK and TNF-α can regulate RA were investigated. The results demonstrated that BTK mainly regulated the ERK/JNK pathway, while TNF-α mainly affected the inactive rhomboid protein 2/B-cell-activating factor pathway. Finally, animal experiments demonstrated that simultaneous silencing of both BTK and TNF-α can significantly alleviate the symptoms associated with RA.

PMID:35069822 | PMC:PMC8756421 | DOI:10.3892/etm.2021.11064

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Mucosal gene expression profile of stricturing Crohn's disease: A preliminary study

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Exp Ther Med. 2022 Feb;23(2):149. doi: 10.3892/etm.2021.11072. Epub 2021 Dec 16.

ABSTRACT

Intestinal strictures are an important complication of Crohn's disease (CD), with ~40% of patients developing symptomatic obstruction within 10 years of diagnosis. However, there is a paucity of research examining the mechanisms driving the development of fibrotic strictures in CD. The present study aimed to identify the mucosal markers associated with stricturing complications by examining the differences in the gene expression profiles of two patient cohorts: Patients diagnosed with inflammatory CD (n=12) and patients with stricturing CD (n=9). For each patient, a paired sample of inflamed and uninflamed mucosa was isolated and assessed by quantitative PCR using a large panel of genes associated with inflammatory bowel disease. The presents study revealed a significantly increased level of four genes in the mucosa of patients with strictures com pared with the inflammatory pattern of the disease: Formyl-peptide receptor 1 [P=0.019; fold change (FC)=11.6], C-C chemokine receptor type 1 (P=0.035; FC=5.44), IFN-γ-inducible protein 10 (P=0.037; FC=3.8) and C-C chemokine ligand 25 (P=0.048; FC=3.56). The augmented expression of these four genes in the CD stricturing phenotype, if confirmed in larger cohorts of patients, could help elucidate the mechanisms leading to disease-associated complications.

PMID:35069830 | PMC:P MC8756406 | DOI:10.3892/etm.2021.11072

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Lectin-type oxidized LDL receptor 1 modulates matrix metalloproteinase 2 production in peri-implantitis

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Exp Ther Med. 2022 Feb;23(2):171. doi: 10.3892/etm.2021.11094. Epub 2021 Dec 27.

ABSTRACT

Peri-implantitis is a disease in which inflammatory lesions that affect the surrounding soft and hard tissues develop. Matrix metalloproteinase 2 (MMP2) is hypothesized to be involved in this destructive process. However, the regulatory mechanism of action of MMP2 in the peripheral tissues of the implant are not fully understood. To determine the expression of MMP2 in peri-implantitis, peri-implant crevicular fluid (PICF) was collected from patients with peri-implantitis. The healthy volunteers' peripheral blood human macrophages infected with Porphyromonas gingivalis (P. gingivalis) were used as a cell model to explore the regulatory mechanism of MMP2 regarding dental implants. Western blotting, reverse transcription-quantitative PCR and immunofluorescence staining were used to measure the expression of MMP2 in the present study. MM P2 expression was increased in the PICF of the patients with peri-implantitis and in human macrophages infected with P. gingivalis. Lectin-type oxidized LDL receptor 1 (LOX-1) mediated the expression of MMP2 in human macrophages upon infection of P. gingivalis, whereas dendritic cell-associated c-type lectin-1 did not appear to be involved in this regulatory process. However, JNK and ERK1/2 were involved in P. gingivalis induced MMP2 expression. The results of this study showed that MMP2 was involved in peri-implantitis. MMP2 was upregulated by LOX-1 in a JNK and ERKk1/2 signaling dependent manner in the cell model. The LOX-1/MMP2 signaling pathway may thus be a potential target for management of peri-implantitis.

PMID:35069852 | PMC:PMC8764579 | DOI:10.3892/etm.2021.11094

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P2X7R antagonist protects against renal injury in mice with adriamycin nephropathy

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Exp Ther Med. 2022 Feb;23(2):161. doi: 10.3892/etm.2021.11084. Epub 2021 Dec 21.

ABSTRACT

Activation of the purinergic P2X7 receptor (P2X7R) has been associated with the development of experimental nephritis. Therefore, the current study aimed to explore the mechanism of P2X7R in renal injured mice with adriamycin (ADR) nephropathy. The protective effect of a P2X7R antagonist on the kidneys of mice with ADR nephropathy was also evaluated. Nephropathy was induced by a single intravenous injection of ADR (10.5 mg/kg). A total of 6 h before the model was established, the P2X7R antagonist A438079 (100, 200 and 300 µmol/kg) was injected into the mice, which was subsequently administered daily for 1 week by intraperitoneal injection. Subsequently, all mice were sacrificed, after which blood, 24 h-urine and the kidneys were collected. The levels of albumin (ALB) and total cholesterol (TC) in the serum, along with urine protein content at 24 h were determined using an automatic biochemical analyzer. The levels of IL-1β and IL-18 were additionally detected in the renal tissues by ELISA. Moreover, the expression of P2X7R, oxidized (ox)-low density lipoprotein (LDL), C-X-C motif chemokine ligand 16 (CXCL16), Bax, caspase-3 and NLRP3 in renal tissues was detected by immunohistochemistry. Apoptosis in the renal tissues was observed using the TUNEL assay. The results demonstrated that compared with the control group, decreased weight, increased proteinuria, decreased serum ALB and increased serum TC was observed in the ADR group. The expression of IL-1β, IL-18, P2X7R, ox-LDL, CXCL16, Bax, caspase-3 and NLRP3, as well as cellular apoptosis in the renal tissues of the ADR group, was significantly increased in the ADR group compared with the control. However, compared with the ADR group, the changes in all indices in the ADR + A438079 groups were attenuated. Overall, P2X7R, ox-LDL and CXCL16 may be associated with ADR nephropa thy, while inhibition of P2X7R may reduce the expression of ox-LDL by downregulating the CXCL16 pathway to alleviate kidney injury in mice with ADR nephropathy. Furthermore, activated P2X7R may promote the release of inflammatory cytokines IL-1β and IL-18 through the downstream P2X7R/NLRP3 pathway and upregulate the expression of Bax and caspase-3 to promote apoptosis, which participates in the process of ADR nephropathy. Inhibiting P2X7R may also reduce the release of IL-1β and IL-18 by downregulating the P2X7R/NLRP3 pathway, downregulating the expression of Bax and caspase-3, and reducing apoptosis, thereby alleviating kidney injury in mice with ADR nephropathy.

PMID:35069842 | PMC:PMC8753981 | DOI:10.3892/etm.2021.11084

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Therapeutic effect and mechanism of 4-phenyl butyric acid on renal ischemia-reperfusion injury in mice

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Exp Ther Med. 2022 Feb;23(2):144. doi: 10.3892/etm.2021.11067. Epub 2021 Dec 15.

ABSTRACT

The aim of the present study was to explore the effects and possible mechanism of 4-phenylbutyric acid (4-PBA) on renal ischemia-reperfusion injury (RIRI) in mice. A RIRI model of HK-2 cells was constructed using hypoxia/reoxygenation (H/R) treatment. Dexmedetomidine and 4-PBA were used to treat the cells before and after modeling. Apoptosis and expression levels of cyclophilin D (CypD), cytochrome c, eukaryotic translation initiation factor 2α (eIF2α), glucose-regulated protein 78 (GRP78), intercellular adhesion molecule (ICAM)-1 and vascular adhesion molecule (VCAM)-1 were measured using flow cytometry, western blotting and immunohistochemistry. The renal volume, weight and renal arterial resistance index (RRI) were determined using the renal ischemia model. Compared with untreated model cells, 4-PBA treatment significantly decreased ap optosis and the expression levels of CypD, Cytochrome c, eIF2α and GRP78 in HK-2 cells. There was no significant change in renal volume and weight after modeling, but RRI was significantly decreased after 4-PBA treatments in the model. Western blotting and immunohistochemistry analysis demonstrated that 4-PBA treatment also significantly decreased the expression of ICAM-1 and VCAM-1. Overall, 4-PBA had a therapeutic effect on RIRI in mice. This protection may be mediated by decreasing the expression levels of CypD, Cytochrome c, eIF2α and GRP78, and subsequent reduction of cellular oxygen free radicals and apoptosis, leading to an alleviated endoplasmic reticulum stress response and RIRI.

PMID:35069825 | PMC:< a href="https://www.ncbi.nlm.nih.gov/pmc/PMC8756420/?utm_source=Inoreader&utm_medium=rss&utm_content=1ba2t84FK1dz-fAY5g7-lbp7yzA9oSsgU2XptRGyGkyx-wIkEA&ff=20220125000243&v=2.17.5" target="_blank" rel="noopener" class="underlink bluelink">PMC8756420 | DOI:10.3892/etm.2021.11067

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