Objective To study the curative effects and characteristics of vocal cord shallow lamina propria resection on the treatment of vocal cord leukoplakia .Methods A total of cases of vocal cord leukoplakia were re-ceived vocal cord mucosa stripping surgery (69 cases) and vocal superficial lamina propria resection with or without suture (69 cases) respectively during January 2006 - December 2011 ,and all cases were taken dynamic laryngosco-py and voice acoustic analysis before surgery ,at 2 weeks ,4 weeks ,6 weeks ,8 weeks ,3 months ,6 months ,and 12 months after surgery .We observed the curative effects and characteristics after operation of two different surgery on the treatment of vocal cord leukoplakia with precancerous lesions .Results Two week after operation ,the vocal cords mucous wave ,vocal cords vibration symmetry ,regularity ,total hoarseness degree (G) ,Jitter ,Shimmer , NHRvaluesinthe2groupsweresignificantlylowerthanthoseofpreoperation(P<0.05),buttherewerenosignif-icant differences between the two groups(P>0 .05) .The three main index of dynamic laryngoscope ,voice acoustic parameters at 4 weeks after operation were significantly lower than those at 2 weeks after operation in the vocal cord mucosa stripping surgery group ,the difference were statistically significant (P<0 .05) ,but it showed no statistical difference between the group at 6 weeks after operation and the groups at other time points (P>0 .05) .The three main index of dynamic laryngoscope ,voice acoustic parameters at 6 weeks after operation were significantly lower than those at 2 ,4 weeks after operation in the vocal cord shallow lamina propria resection group ,the difference were statistically significant (P<0 .05) ,but it showed no statistical difference between the group at 8 weeks after operation and the groups of other time points (P>0 .05) .The voice restoration was faster in the vocal cord mucosa stripping surgery group .The recurrence rate was lower in the vocal cord shallow lamina propria resection group than those in the traditional vocal cord mucosa stripping surgery group ,the difference was statistically significant (P<0 .05) . Conclusion The vocal cord shallow lamina propria resection is a minimally invasive operation for the treatment of vocal cord leukoplakia ,with low recurrence rate and good the voice recovery .

Objective Allergic rhinitis (AR) is studied extensively while nonallergic rhinitis (NAR) insufficiently in the recent years .The aim of this study is to describe the inflammation characteristics of different types of NAR . Methods Using the skin prick test , we investigated the characteristics , nasal cytokine levels , serum cytokine levels , and the proportion of peripheral blood Treg cells in 12 cases of AR, 10 cases of NAR with eosinophilia (EOS) syndrome (NARES), 12 cases of NAR without ES (NAR), and 11 control adults . Results The NARES patients had a signifi-cantly higher level of IFN-γ(28.89 [10.97-127.07] pg/mL) than the control (8.98 [7.88-14.90] pg/mL) and the NAR patients (7.92 [7.67-45.85] pg/mL) ( P<0.05) but a lower level of nasal IL-10 than the control ([3.97±0.68] vs [4.80±1.32] pg/mL, P<0.05) .The contents of nasal IL-4, serum IL-4, nasal IL-17 and ser-um IL-17 were all markedly higher in the AR and NARES groups than in the control (P<0.05).The proportion of CD4+CD25+FOXP3+Treg cells in the CD4+T cells in the peripheral blood was (4.5±1.3)%in the AR group and (4.0±1.8) %in the NARES group, both significantly lower than (6.5±1.0) %in the control group (P<0.05) and (6.5±1.0) %in the NAR group (P<0.05). Conclusion NAR was classified according to the EOS level into NARES and NAR without EOS, which had different mechanisms and manifestations of inflammation and similar inflammatory manifestations of Th 2 and Th17.The classification of rhinitis by the level of EOS has more practical significance .

Objective To construct a gene recombinant lentiviral vector pCMV -G -U6 -hHGF and detect its expression in C2C12 myoblast cells .Methods hHGF gene fragments were obtained and purified by RT -PCR method ,and were cloned to pCMV -G&NR -U6 ,then the restructured lentiviral vector was transformed into e . coli DH5 alpha ,the positive colonies were identified by BamHI and Hind Ⅲ enzyme digestion .The selected positive colonies were tested by PCR and sequencing analysis .The expression plasmids and packing plasmids were co -trans_fected into 293 T cells ,and virus titer was observed under the fluorescence microscope .Furthermore ,transfected C2C12 cells with lenti virus ,and the expression of HGF was detected by PCR and WB methods .ResuIts PCR and sequencing analysis showed that the lentiviral vector was constructed correctly and successfully ,the virus titer was above 1 x 109 IU/mL .The results of PCR and WB showed that HGF expression level in the lentiviral vector group was much higher than those of in blank control and negative control groups ,and yet the expression was stable after 72 hours .ConcIusion The lentiviral vector pCMV -G﹠NR -U6 -hHGF has been successfully constructed ,and stable expressed in C2C12 cells .It provides references for experimental study in the fields of the denervated skeletal muscle fibrosis and nerve regeneration treatment .

Objective Nonallergic rhinitis with eosinophilia syndrome (NARES) is associated with such diseases as bronchial asthma , nasal polyps , and aspirin intolerance , but there is a lack of studies on its inflammatory conditions .The aim of this study is to describe the inflammation characteristics of NARES . Methods This study included 101 cases of allergic rhinitis ( AR) , 39 cases of NARES, and 162 adult controls .We analyzed the inflammation char-acteristics of the patients using skin prick test ( SPT) , nasal douche , fractional exhaled nitric oxide ( FeNO ) measurement , serum eosino-phil (EOS) counting, serum total IgE (tIgE) determination, induced sputum detection, and nasal and bronchial provocation tests . Results Compared with the controls , the NARES and AR groups showed significant increases in the positive rate of nasal provocation (32.1%vs 69.2%and 75.2%, P<0.05), positive rate of bronchial provocation (1.2%vs 10.3%and 14.9%, P<0.05), and FeNO level ([15.70 ±5.20] ppb vs [37.25 ±22.95] and [39.00 ±24.29] ppb, P<0.05), as well as in the serum EOS and tIgE levels, EOS count, and ratio of EOS in the induced sputum (P<0.05).However, the level of serum tIgE was significantly lower in the NARES than in the AR group (53.3 [23.3-186.0] kU/L vs 197.0 [62.6-391.0] kU/L, P<0.05). Conclusion NARES is a syndrome with nasal, lower airway, and systematic inflammation, similar to AR in inflammatory intensity.Therefore, for patients with NARES, attention should be paid not only to upper airway but also to lower airway and systemic inflammation .

Objective To study the experimental results of selective reinnervation of posterior cricoarytenoid(PCA) muscles by upper root of unilateral phrenic nerve.Methods Eight beagle dogs were used in this experiment.The left recurrent laryngeal nerves (RLNs) were severed and anastomosed with upper root of phrenic nerve, and the intralaryngeal adductor branch was cut and sutured into the belly of the ipsilateral PCA muscle. The right RLNs were kept intact, and were used as control group.Videolaryngoscopy and electromyography (EMG) were performed at preoperative, immediately after surgery and 6 months after surgery.After completion of all physiologic testings,the dogs were sacrificed and bilateral PCA muscles and intralaryngeal part of recurrent laryngeal nerves were harvested, then histological examination was carried out.The laryngeal nerve was stained with toluidine blue and the morphology of the axons was observed under light microscope.Results Preoperatively, the movement of bilateral vocal folds were normal in all dogs.The left vocal folds were fixed immediately after surgery, 6 months after surgery, the left vocal folds in all 8 dogs recovered inspiratory abductive movement.Spontaneous and evoked electrical activities of the reinnervated PCA muscles could be recorded in all cases during inspiration preoperatively.The left PCA muscles were electrical silent during normal inspiration, and evoked activities were not induced immediately after surgery.Spontaneous electrical activities and evoked electrical activities were recorded 6 months after surgery, and had no significant difference when compared with those of postoperative (P>0.05).There was no significant difference in the cross-sectional area of the bilateral posterior cricoarytenoid muscles fibers after the masson staining.Muscle collagen relative cross-sectional area and collagen relative cross-sectional area and muscle/collagen cross-sectional area ratio difference were not statistically significant(P>0.05).Nerve pulp numbers of left and right sides of the recurrent laryngeal nerves had no significant difference (P>0.05).Conclusion Selective reinnervation of posterior cricoarytenoid muscles by the upper root of unilateral phrenic nerve can restore inspiratory vocal fold abduction to a satisfactory extent and avoid aberrant regeneration.

Objective: To investigate the dynamic expression of placenta growth factor (PlGF) in the lungs and its role in paraquat-induced pulmonary fibrosis and to evaluate the effect of ACEI captopril and AT (1) -receptor blocker losartan on paraquat-induced pulmonary fibrosis. Methods: 84 adult healthy female Sprague-Dawley (SD) rats were randomly divided into four groups of different treatments designated as: Control, PQ alone (PQ) , captopril treatment, losartan treatment. Each group was divided into three subgroups of seven animals each. The animals were killed at either 7, 14 or 28 days after PQ administration. The rats in PQ group, treatment group were treated intragastrically (ig) with PQ (40 mg/kg) and the rats in control group were treated with the same dose of saline at the beginning of the experiment. The treatment group received Captopril (60 mg/kg; ig) or Losartan (10 mg/kg; ig) once a day respectively after PQ administration and the other two groups received saline. At the given timepoint, animals were sacrificed and lungs were harvested. A semiquantitative assay of histological examination, hydroxyproline in lung tissues were used to determine the severity of alveolitis and fibrosis. RT-PCR and immunohistochemistry were used to detect the mRNA and protein expression of PlGF. Results: Inflammatory cell infiltration and fibrotic scores were more prominent in the model group, hydroxyproline contents in lung tissue were significantly increased after PQ administration compared to the control group. Captopril, losartan apparently attenuated the degree of lung injury and pulmonary fibrosis. On 7th, 14th days, the levels of alveolitis in the intervention groups were significantly alleviated as compared with the model group (P<0.05) . On 28th days, the levels of pulmonary fibrosis in the intervention groups were significantly alleviated as compared with model group (P<0.05) . The hydroxyproline contents in the intervention groups were significantly decreased as compared with model group (P<0.01) . PlGF mRNA on day 7, 14, 28 (1.28±0.29vs0.10±0.01、0.80±0.07vs0.10±0.01、0.65±0.13vs0.10±0.01) in the PQ group were all upregulated as compared with that of the control group. PlGF mRNA on day 7, 14, 28 in the captopril and Losartan intervention groups were significantly decreased (0.94±0.04、0.71±0.09、0.52±0.24 and 0.80±0.12、0.66±0.11、0.51±0.03) . PlGF positive expression index on day 7, 14, 28 (2.27±0.34 vs0.13±0.01、1.78±0.41 vs0.14±0.03、1.25±0.69 vs0.13±0.01) in the PQ group were all upregulated as compared with that of the control group. PlGF positive expression index on day 7, 14, 28 in the captopril and Losartan treatment groups were significantly decreased (1.53±0.78、1.17±0.79、0.97±0.61 and 1.36±0.63、1.24±0.80、0.83±0.47) . PlGF positive expression index on day 7 in the two intervention groups were significantly decreased, as compared with PQ group (P<0.05) . Conclusion PlGF may plays an important role in the development of pulmonary fibrosis following paraquat-induced lung injury in rats. Captopril and losartan had an inhibitory effect on paraquat-induced pulmonary fibrosis, and the effect may be due to inhibition of angiotensin II and, in part, be associated with reduction in PlGF.

The editorial board and publication ethics committee of the CEO decided to retract this paper from our journal.

Objective To evaluate the feasibility and efficacy of laparoscopic liver resection (LLR) in elderly patients with hepatocellular carcinoma (HCC). Methods Twenty-nine elderly patients undergoing laparoscopic liver resection (LLR) and 58 elderly patients receiving open liver resection (OLR) for HCC were included from January 2013 to December 2015 in our department of Fujian Medical University. Two groups were 1:2 matched for gender ,tumor numbers ,and operative procedure.Besides ,general clinical data ,intraoperative data ,postoperative recovery ,and postoperative survival were compared. Results The postoperative hospital stay was shorter in the LLR group [(9.1±3.8)days]thanintheOLRgroup[(11.8±5.1)days](t= -2.66,P<0.05).Theincidence of portal triad clamping was lower in the LLR group than in the OLR group (34.5％ vs.60.3％ ,χ2 =5.18 ,P<0.05). The removal time of abdominal drainage tube was earlier in the LLR group (4.18 ± 1.94)days than in the OLR group (5.4 ± 2.1)days (t= -2.48 ,P<0.05). The overall survival (OS) showed no difference (37.08 months vs.38.72 months ,t=0.72 ,P=0.789). The disease-free survival (DFS) showed no difference (29.00 months vs.27.49 months ,t=0.53 ,P=0.467). Conclusions LLR in elderly patients with HCC can achieve the same long-term outcome as the conventional open hepatectomy ,and LLR has better short-term outcomes with obvious advantages of minimal invasion.

OBJECTIVES: To investigate the surgical outcomes of different uvulopalatopharyngoplasty (UPPP). METHODS: All subjects underwent overnight polysomnography and were evaluated using the Epworth sleepiness scale (ESS), the Quebec sleep questionnaire and the snoring scale at the baseline and 3 and 12 months following operation. The primary endpoint was the overall effective rate representing the sum of the surgical success rate and effective rate. RESULTS: The overall effective rate at 12 months post surgery was 55.6% for simple UPPP, 95.8% for UPPP+GA, and 92.3% for UPPP+TBA. The surgical success rate at 3 and 12 months postoperation for UPPP+GA or UPPP+TBA was significantly higher than simple UPPP (P<0.05). Marked improvement was observed in all patients in the snoring scale score and the ESS score 3 and 12 months following surgery compared to the baseline (P<0.05 in all). CONCLUSION: UPPP, UPPP+GA, and UPPP+TBA are all effective in improving the surgical outcome of obstructive sleep apnea hypopnea syndrome (OSAHS) patients with multilevel obstruction. UPPP+TBA appears to be the most effective in treating OSAHS patients.
Humans ; Polysomnography ; Prospective Studies* ; Quebec ; Sleep Apnea Syndromes ; Sleep Apnea, Obstructive* ; Snoring ; Tongue* ; Surveys and Questionnaires

Objective:To investigate the efficacy of type I thyroplasty with Montgomery prosthesis implantation for the treatment of unilateral vocal fold paralysis.Methods:From May 2015 to March 2019, 46 patients (24 males, 22 females, with age range of 23-77) with unilateral vocal fold paralysis underwent thyroplasty with Montgomery prosthesis implantation in the Department of Otorhinolaryngology Head and Neck Surgery in both the First Affiliated Hospital of Navy Medical University and Guangdong Provincial People’s Hospital. The assessment methods included GRBAS auditory perception assessment, acoustic analysis such as Jitter, Shimmer, NHR and maximum phonation time (MPT).Results:Postoperative videostroboscopy observed the displacement of paralyzed vocal fold to the midline in 44 cases as well as significantly reduced glottic fissures during phonation. In the other 2 cases, glottic fissure did not reduce significantly. Compared with preoperative data, the scores of all parameters in GRBAS auditory perception assessment were lower except the parameter S, and the acoustic analysis parameters (jitter, shimmer, NHR) were smaller, and MPT was longer. All the difference was statistically significant ( P<0.001). Revision surgery was performed in 2 patients with poor results. No serious complications occurred in all the cases. Conclusions:For the patients with unilateral vocal fold paralysis who are not suitable for the laryngeal reinnervation surgery due to old age or long course of denervation, thyroplasty with Montgomery prosthesis implantation can effectively improve the voice of patients with high safety,which is worthy of promotion.