[Efficacy observation and compliance analysis of pollen allergen drops in seasonal allergic rhinitis]

To study the efficacy and compliance analysis of pollen allergen drops in the treatment of allergic rhinitis. The method of single-center controlled was used to analyze the dates' results. From July 2021 to September 2021, 80 patients with seasonal allergic rhinitis were referred to the clinic of otorhinolaryngology in First Hospital of Shanxi Medical University.40 patients received sublingual immunotherapy (SLIT group), and the other 40 patients received symptomatic drug treatment as the control group. The total rhinoconjunctivitis symptom score (TRSS), the visual analogue scale(VAS), total medication score (TMS) and combined scores of medication and rhinoconjunctivitis symptoms (CSMRS) of the patient before the start of the treatment and after the first year of the treatment were compared to assess the efficacy of sublingual immunotherapy of Artemisia pollen. Follow the shedding during the study, the safety of the drug and the causes for compliance analysis were analyzed and recorded. The results of comparison with TRSS, VAS, TMS and CSMRS in two groups in the period of pretherapy were as follows: TRSS(12.393±3.023, 12.450±3.029, t=-0.077, P=0.939), VAS(8.357±1.026, 8.400±0.982, t=-0.173, P=0.862), TMS(3.214±0.568, 3.175±0.501, t=0.301, P=0.764), CSMRS (5.286±0.680, 5.253±0.677, t=0.199, P=0.843), there was no significant difference (P>0.05); lower observed symptom scores were got in the post-treatment pollen peak SLIT group compared to the control group, TRSS(3.964±1.551, 7.750±2.169, t=-7.918, P<0.05), VAS(2.893±0.956, 5.175±1.481, t=-8.286, P<0.05), TMS (1.821±0.863, 3.175±0.501, t=-8.163, P<0.05), CSMRS (2.489±0.921, 4.468±0.601, t=-10.723, P<0.05), and the differences between the groups were statistically significant (P<0.05); the SLIT group significantly reduced all symptom scores at the first peak compared to the starting, TRSS(12.393±3.023, 3.964±1.551, t=20.576, P<0.05), VAS (8.357±1.026, 2.893±0.956, t=30.070, P<0.05), TMS (3.214±0.568, 1.821±0.863, t=7.151, P<0.05), CSMRS(5.286±0.680, 2.489±0.921, t=14.533, P<0.05) and there was statistical difference (P<0.05). No significant adverse reactions occured during medication in the SLIT group. A total of 12 cases were shed in the SLIT group, so the compliance rate was 70%. The four reasons were that patients considered the course was long (4 cases, 33%); the drugs were expensive (3 cases, 25%); patients were busy with their work and life (3 cases, 25%); patients were affected by the outbreak (2 cases, 17%). In summary, Artemisia pollen sublingual drops may improve the symptoms of the patients who got allergic rhinitis caused by Artemisia pollen after the treatment for one year. However, due to the lack of sufficient understanding of immunotherapy or the difficulty in adhering to standardized medication, the compliance with sublingual immunotherapy is still poor, the compliance with sublingual immunotherapy needs to be further improved through patient education.

[Study on the effect of alginate impression spray disinfection process on model accuracy]

PURPOSE

To investigate the effect of a new cleaning and disinfection process of oral impressions on the accuracy of alginate dental impression.

METHODS

Sixteen young volunteers were selected to make alginate oral impression (2 times for each upper and lower jaw) and oral scandata acquisition (1 time for each upper and lower jaw) to obtain STL data. The 2 pairs of alginate impressions of each subject were numbered group 1, group 2, inwhich group 1 was not sterilized and the oral impression film in group 2 was treated with the method and steps of new oral impression cleaning and disinfection. All the oral impressions of the subjects were perfused with plaster models in the same standard way and demoulded. The obtained plaster models were examined and scanned after appropriate trimming and grinding. The plaster model data obtained from each group of each patient after warehouse scanning were compared with the orally scanned model data for alignment analysis, and root mean square(RMS) was used as a parameter to evaluate the deviation between the test model and the standard model. The chromatograms of the deviations were saved for visualization and analysis to observe the differences in model accuracy from several dimensions. Statistical analysis was performed with SPSS 23.0 software package.

RESULTS

The differences in RMS of model accuracy of maxillary dental series of alginate impressions were statistically significant, in which the RMS of the group disinfecting the maxillary oral impression film with a new oral impression cleaning and disinfection process was significantly higher than that of the nonsterilized group (P=0.006), while the difference between model accuracy RMS of the mandibular disinfection group and non-disinfection group was not statistically significant(P=0.874).

CONCLUSIONS

The new technical specifications for cleaning and disinfection of dental impressions recommended by the Chinese Stomatological Association have certain effects on the accuracy of dental impressions made of alginate material,and the details in its process should be further improved.

[Relationship between sICAM-1, IL-1β and HIF-1α levels in gingival sulcus fluid and peri-implantitis in patients with implant restoration]

PURPOSE

To investigate the relationship between the levels of soluble intercellular adhesion molecule-1 (sICAM-1), interleukin-1β (IL-1β) and hypoxia-inducible factor-1α (HIF-1α) in gingival sulcus fluid and peri-implantitis (PI) in patients with implant restoration.

METHODS

A total of 198 patients with implant restoration admitted to Fengcheng Hospital from January 2019 to December 2021 were selected, the patients were divided into PI and non-PI group according to whether the implant restoration was complicated by PI 3 months after restoration. The levels of sICAM-1, IL-1β and HIF-1α in the gingival sulcus fluid prior to implant restoration were measured by enzyme-linked immunosorbent assay. Multi-factor logistic regression was used to analyze the factors influencing concurrent PI in patients with implant restoration. ROC curves were used to analyze the predictive value of sICAM-1, IL-1β and HIF-1α levels in gingival sulcus fluid on concurrent PI in patients with implant restoration. SPSS 28.0 software package was used for statistical processing of the data.

RESULTS

The incidence of PI in 198 patients with implant restoration was 17.68% (35/198) 3 months after implant restoration. The levels of sICAM-1, IL-1β and HIF-1α in the gingival sulcus fluid were significantly higher in the PI group than in the non-PI group (P＜0.05). Multi-factor logistic regression analysis showed that elevated sICAM-1(OR=1.135, 95%CI: 1.066-1.208), IL-1β (OR=1.106, 95%CI: 1.054-1.161) and HIF-1α (OR=1.008, 95%CI: 1.004-1.012) were independent risk factors for complications of PI in prosthetic patients(P＜0.05). ROC curve analysis showed that the area under the curve for sICAM-1, IL-1β and HIF-1α levels in gingival sulcus fluid alone and in combination for the diagnosis of concurrent PI in patients with implantation was 0.787, 0.785, 0.794 and 0.930, respectively, with sensitivity of 80.00%, 74.29%, 62.86% and 88.57% and specificity of 66.87%, 74.85%, 78.53% and 85.28%, respectively.

CONCLUSIONS

Elevated levels of sICAM-1, IL-1β and HIF-1α in gingival sulcus fluid are independent risk factors for PI complications in patients with implant restoration and can be used as an auxiliary predictor of PI complications in patients with implant restoration.

A comparison of the holiday climate index:beach and the tourism climate index across coastal destinations in China

Climatic resources are vitally important for tourism, driving major intra- and inter-regional travel flows for sun-sand-surf (3S) tourism around the world. The development of climate indices to measure the suitability of climate for major tourism market segments has evolved over three decades. This study provides the first application of the holiday climate index (HCI):Beach specification in the Asia-Pacific tourism region. The HCI is designed from international tourist climate preference studies and is compared with the tourism climate index (TCI), which is widely applied, but not based on tourist climate preferences. The index inter-comparison is conducted at 14 of the most popular beach resort destinations in China, which include four geographic regions of China with four different Köppen classifications. The results show key differences between the two indices in rating the climatic suitability of the selected beach destinations in China, with the TCI rating beach destinations in the north and south higher during the spring and fall seasons, which is not consistent with beach tourism visits. During the summer months, southern destinations have much higher HCI:Beach rating, reflecting the 3S tourists' desire for higher temperatures. The findings reinforce those from other tourism regions that indicate the TCI is not appropriate for assessing 3S tourism potential and that additional cross-cultural studies of tourist climate indices are needed to better inform market segment climate service development and to understand the potential impacts of future climate change.

[Analysis of influencing factors of textile workers' occupational stress]

Objective: To explore the occupational stress status and influencing factors of workers in a textile factory in Zhejiang Provice. Methods: In October 2018, 505 workers from a textile factory in Zhejiang Province were selected as research objects by convenient sampling method. A total of 505 questionnaires were distributed, 495 of which were effective and the effective recovery rate was 98.0%. Job Content Questionnaire (JCQ) and Effort Reward Imbalance Questionnaire (REI) were used to investigate textile workers' occupational stress and analyze its influencing factors. The differences of the composition ratio of different groups were tested by χ(2) test. The influencing factors such as age, gender and occupation on occupational stress were analyzed by multivariate logistic regression. Results: ERI analysis results showed that the high and low occupational stress accounted for 30.1% and 69.9%, respectively. The differences of occupational stress among workers of different job types and working ages were statistically significant (P<0.05) . The detection rates of high occupational stress of paper workers and spinners were 47.8% (11/23) and 44.8% (30/67) , respectively, higher than other jobs. The detection rate of high occupational stress for workers with more than 5 years of service was 46.4% (13/28) . The results of JCQ analysis showed that there was no statistical significance in the differences of daily working hours and length of service between different gender, education levels, types of work patterns, and occupational stress (P>0.05) . Job types had significant effects on the occupational stress defined by ERI (P<0.05) , the risk of occupational stress was 2.151 times than that of the coiler. Conclusion: There are significant differences in occupational stress risk among workers of different types of work in textile industry, so different measures should be taken to prevent and control occupational stress in different jobs.

[A comparative study of silicon rubber impression and intraoral scanning impression in oral clinical teaching]

PURPOSE

The aim of this study was to assess and compare patient satisfaction and time required between silicon rubber impression and intraoral scanning impression.

METHODS

Six undergraduates participated in this study. silicon rubber impression and intraoral scanning impression were taken, the time required to obtain the impressions and the scores of visual analog scale(VAS) were recorded. SPSS 23.0 software package was used for statistical analysis.

RESULTS

The time and patients satisfaction of silicon rubber impression were better than intraoral scanning impressions, and there were significant differences between the two groups(P<0.05).

CONCLUSIONS

Using silicon rubber impression, the patient experience is better. To use intraoral scanning impression technology, dentists should be more skilled. With the role-playing method,dental interns can learn the operation key points and precautions of different impression-taking methods even better.

[A multicenter, retrospective study of pathogenic bacteria distribution and drug resistance in febrile neutropenic patients with hematological diseases in Shanghai]

目的

了解上海地区中性粒细胞缺乏（粒缺）伴发热血液病患者致病细菌的分布及耐药情况。

方法

回顾性分析2012年1月至2014年12月上海市12家医院血液科粒缺伴发热住院患者的临床分离菌株，用纸片扩散法进行药敏试验，WHONET 5.6软件分析病原菌分布及药敏数据。

结果

从上海地区粒缺伴发热患者中共分离出1 260株细菌，其中革兰阳性菌420株（33.3%），革兰阴性菌840株（66.7%）。排在前七位的分别是肺炎克雷伯菌158株（12.5%）、嗜麦芽窄食单胞菌120株（9.5%）、大肠埃希菌115株（9.1%）、铜绿假单胞菌109株（8.7%）、鲍曼不动杆菌83株（6.6%）、金黄色葡萄球菌70株（5.6%）和屎肠球菌63株（5.0%）。呼吸道分泌物标本中，非发酵菌占56.2%（350/623）。其中嗜麦芽窄食单胞菌占15.3%（95/623）。血液标本中，肠杆菌科细菌占42.3%（104/246），凝固酶阴性葡萄球菌占34.6%（85/246）。脓液标本中肠杆菌科细菌占39.4%（76/193），肠球菌属细菌占28.5%（55/193）。耐甲氧西林金黄色葡萄球菌葡萄球菌（MRSA）和耐甲氧西林凝固酶阴性葡萄球菌（MRCNS）的检出率分别为54.3%和82.5%，未发现耐利奈唑胺、万古霉素、替考拉宁葡萄球菌属菌株，耐万古霉素屎肠球菌的检出率为8.9%，肠球菌属未检出耐利奈唑胺的菌株。肠杆菌科细菌对碳青霉烯类药物高度敏感。铜绿假单胞菌对亚胺培南和美罗培南的耐药率已分别达34.1%和15.8%。嗜麦芽窄食单胞菌对米诺环素、左氧氟沙星、复方磺胺甲恶唑等药物敏感。鲍曼不动杆菌仅对头孢哌酮/舒巴坦的耐药率低于10.0%。肺炎克雷伯菌、嗜麦芽窄食单胞菌、铜绿假单胞菌、鲍曼不动杆菌等革兰阴性菌对大多常用抗菌药物的耐药率低于CHINET监测的数据。

结论

粒缺伴感染患者常见感染部位致病菌株分布有其特点，细菌耐药率整体低于CHINET全国医院大样本监测。

[Feasibility of single-staged Han-uvulopalatopharyngoplasty with septoplasty in adults with obstructive sleep apnea-hypopnea syndrome]

Objective: To explore the feasibility and therapeutic effect of single-staged Han-uvulopalatopharyngoplasty with septoplasty in adults with obstructive sleep apnea-hypopnea syndrome. Methods: Ninety six cases with OSAHS were diagnosed by polysomnography, and they all had retropalatal obstruction and deviation of nasal septum. Patients were divided into study group(48 cases) and control group(48 cases) randomly. Cases in study group were simultaneously treated with Han-uvulopalatopharyngoplasty and septoplasty, while cases in control group were only treated with Han-uvulopalatopharyngoplasty. U saturation skill and coblation-assisted were applied in Han-uvulopalatopharyngoplasty. And nasal septum suture technique was applied in septoplasty. The observation index included the intranasal changes with acoustic rhinometry, the prevalence of common postoperation complications and curative effects after six months follow-up period. SPSS 18.0 was used for statistical analysis. Results: In study group the overall response rate was 83.33%(40/48), while in control group the overall response rate was 62.50%(30/48). There was statistical significance of response rate between test group and control group(χ(2)=5.275, P<0.05). There was no statistical significance on complication rate between study group and control group(P>0.05). There was no statistical significance on preoperative measurement data(P>0.05). Conclusion: For OSAHS patients with obstructive level at retropalatal plane and nasal plane, Han-uvulopalatopharyngoplasty combined with septoplasty in one stage is safe and effective.

Clinical Significance of Myeloid Zinc Finger 1 Expression in the Progression of Gastric Tumourigenesis

BACKGROUND/AIMS

To investigate the clinical significance of myeloid zinc finger 1 (MZF1) expression in various gastric mucosal lesions including chronic superficial gastritis (CSG), chronic atrophic gastritis (CAG), intestinal metaplasia (IM), dysplasia (DYS) and gastric cancer (GC) in comparison with normal tissues and gastric cell lines.

METHODS

MZF1 protein expression was detected using immunohistochemical staining in 37 CSG, 88 CAG, 77 IM, 51 DYS, 165 GC and 8 normal tissue samples. Quantitative real-time PCR (qRT-PCR) and western blotting were used to detect the level of MZF1 in gastric cell lines, 15 normal tissues and 34 GC samples, as well as 2 groups of paired primary GC and adjacent normal samples.

RESULTS

Reduced MZF1 expression was detected in most GC cells and tissues. Among the gastric tissues consisting of various stages of lesions (normal, CSG, CAG, IM, DYS and GC), MZF1 protein expression was downregulated in precancerous lesions and GC. The data from clinical analyses showed that decreased MZF1 expression was correlated with tumour invasion (p = 0.044), lymph node metastasis (p = 0.048) and poor prognosis of GC patients (p = 0.003). Moreover, MZF1 was identified as an independent prognostic biomarker for GC patients in multivariate Cox regression analysis (p = 0.009).

CONCLUSION

Downregulation of MZF1 was associated with gastric tumourigenesis, which may be a novel early predictive and prognostic biomarker in GC patients.

[A case of laryngeal neuroendocrine carcinoma]

The patient had a sore throat without any special incentive for 2 months, accompanied by irritating cough and white sputum. Dynamic laryngoscopy showed: the right side of laryngeal surface of epiglottis can be seen an uneven purple mass, considered the possibility of fibrous hemangioma or other benign tumor. Intraoperative we had seen the tumor was located on the right side of the laryngeal surface of epiglottis, the size about 1.0 cm×0.8 cm.Postoperative pathology reported: Syn (+), CgA (+), CD56 (focal +), CK (+). Diagnose:(epiglottis) neuroendocrine carcinoma.

STAT3 signaling drives EZH2 transcriptional activation and mediates poor prognosis in gastric cancer

BACKGROUND

STAT3 signaling plays the pivotal role in tumorigenesis through EZH2 epigenetic modification, which enhanced STAT3 activity by increased tyrosine phosphorylation of STAT3. Here, another possible feedback mechanism and clinical significance of EZH2 and STAT3 were investigated in gastric cancer (GC).

METHODS

STAT3, p-STAT3 (Tyr 705) and EZH2 expression were examined in 63 GC specimens with matched normal tissues by IHC staining. EZH2 and STAT3 were also identified in five GC cell lines using RT-PCR and western blot analyses. p-STAT3 protein was detected by western blotting. In order to investigate whether EZH2 expression was directly regulated by STAT3, EZH2 expression was further detected using siRNA for STAT3 or IL-6 stimulation, with dual luciferase reporter analyses, electrophoretic mobility shift assay (EMSA) and chromatin immunoprecipitation (ChIP) assays. The clinical significance of STAT3, p-STAT3 and EZH2 expression was evaluated by multi-factor COX regression and Kaplan-Meier analyses.

RESULTS

Hyper-activation of STAT3, p-STAT3 and EZH2 expression were observed in GC cells and tissues. STAT3 signaling was correlated with EZH2 expression in GC (R = 0.373, P = 0.003), which was consistent with our data showing that STAT3 as the transcriptional factor enhanced EZH2 transcriptional activity by binding the relative promoter region (-214 ~ -206). STAT3 was an independent signature for poor survival (P = 0.002). Patients with STAT3⁺/EZH2⁺ or p-STAT3⁺/EZH2⁺ had a worse outcome than others (P < 0.001); Besides, high levels of STAT3 and EZH2 was associated with advanced TNM staging (P = 0.017). Moreover, treatment with a combination of siSTAT3 and EZH2-specific inhibitor, 3-deazaneplanocin A (DZNEP), increased the apoptotic ratio of cells. It is benefit for targeting STAT3-EZH2 interplay in GC treatment.

CONCLUSIONS

Our results indicate that STAT3 status mediated EZH2 upregulation, associated with advanced TNM stage and poor prognosis, suggesting that combination with knockdown of STAT3 and EZH2 inhibitor might be a novel therapy in GC treatment. Collectively, STAT3, p-STAT3 and EZH2 expression were provided for the precision medicine in GC patients.

[Typical carcinoid tumor in sphenoid sinus:a case report]

We report a case of typical carcinoid tumor in sphenoid sinus.A 52-year-old woman presented with a history of nasal obstruction,nasal purulent discharge and occasionally accompanied with blood streaks and hyposmia.All laboratory examinations were normal.Sinus computed tomography showed soft tissue mass in the right nasal cavity,nasopharynx and sphenoid sinus,with thickened locoregional mucosa.No sign of bone erosion was observed.In conclusion the case was diagnosed as typical carcinoid tumor.

Flow cytometry and ultrastructure of cryopreserved red seabream (Pagrus major) sperm

The objectives were to assess motility, fertilizing capacity, structural integrity, and mitochondrial function in fresh versus frozen-thawed (15% DMSO was used as a cryoprotectant) sperm from red seabream (Pagrus major). Mean (+/-S.D.) rates of motility, fertilization and hatching of frozen-thawed sperm were 81.0+/-5.4, 92.8+/-1.9, and 91.8+/-5.2%, respectively; for fresh sperm, they were 87.5+/-7.7, 95.8+/-2.4, and 93.8+/-4.2%. Although motility was lower in frozen-thawed versus fresh sperm (P<0.05), there was no effect (P>0.05) of cryopreservation on fertilization or hatching. Based on scanning and transmission electron microscopy, 77.8+/-5.6% of fresh sperm had normal morphology, whereas for frozen-thawed sperm, 63.0+/-7.2% had normal morphology, 20.6+/-3.1% were slightly damaged (e.g. swelling or rupture of head, mid-piece and tail region as well as mitochondria), and 16.4+/-4.2% were severely damaged. Sperm were stained with propidium iodide and Rhodamine 123 to assess plasma membrane integrity and mitochondrial function, respectively, and examined with flow cytometry. For fresh sperm, 83.9% had an intact membrane and functional mitochondria, whereas for frozen-thawed sperm, 74.8% had an intact membrane and functional mitochondria, 12.7% had a damaged membrane, 9.9% had nonfunctional mitochondria, and 2.6% had both a damaged membrane and nonfunctional mitochondria. In conclusion, ultrastructure and flow cytometry were valuable for assessment of frozen-thawed sperm quality; cryopreservation damaged the sperm but fertilizing ability was not significantly decreased.

Cataract formation and cataract extraction after penetrating keratoplasty

PURPOSE

This retrospective study was done to identify risk factors for cataract formation and cataract extraction after penetrating keratoplasty to determine whether a combined procedure (simultaneous cataract extraction with keratoplasty) or penetrating keratoplasty alone should be performed.

METHODS

Variables from 342 phakic eyes having undergone penetrating keratoplasties were studied with univariate and multivariate analyses, including diagnosis, race, sex, age, preoperative lens opacities, preoperative vision, and length of follow-up.

RESULTS

For cataract formation, age was the only independent risk factor found by multivariate analysis (P = 0.0001). For cataract extraction after penetrating keratoplasty, independent risk factors included age, sex, diagnosis, and preoperative lens opacities (P < or = 0.03). For example, the probability of a 65-year-old patient with Fuchs dystrophy requiring a cataract extraction within 5 years of keratoplasty is 81%.

CONCLUSION

The likelihood of cataract formation and cataract extraction subsequent to penetrating keratoplasty increases greatly after 50 years of age, regardless of the diagnosis leading to the need for keratoplasty. The need for cataract extraction also is increased for female patients, for patients with Fuchs dystrophy, and for those with early preoperative lens opacity.

Posterior chamber intraocular lens implantation combined with lensectomy-vitrectomy and intraretinal foreign-body removal

Two patients with intraretinal foreign bodies and traumatic cataracts were treated with pars plana lensectomy, vitrectomy, and removal of the foreign body. In each case, it was technically possible to preserve the anterior capsule despite small but obvious rents caused by the foreign body. This allowed support for the placement of a posterior chamber intraocular lens at the time of the initial repair. Posterior chamber intraocular lens implantation may be a useful adjunctive step in the treatment of selected patients with intraocular foreign bodies.

Methylene blue stain guiding layered excision in Mohs' micrographic surgery

Resection of a continuous layer of tissue by means of Mohs' micrographic surgery is problematic at several periorbital sites. We describe a technique in which methylene blue is used to identify instances of incomplete specimen removal and thus facilitate subsequent complete removal.