Objective To compare the proportion of CD3~+T cell and CD4~+CD25~(high) regulatory T cell (Treg cell) and the production of inferon γ ( IFN-γ) and interleukin-12 (IL-12) in peripheral blood mononuclear cells (PBMC) between patients with non-small cell lung cancer (NSCLC) and healthy people, and to analyze the changes of CD3~+T cell, CD4~+CD25~(high)Treg cell, IFN-γ and IL-12 of NSCLC patients before and after chemotherapy, so as to determine immune function changes of NSCLC patients caused by chemotherapy. Methods Twenty NSCLC patients and 20 healthy volunteers according to the including criteria were selected. Three mL of blood was drawn from NSCLC patients before chemotherapy (0 d), on the 3~(rd) day (3 d) and 7~(th) day (7 d) after chemotherapy. PBMC cells were separated from the blood samples. The proportions of CD4~+CD25~(high)Treg cell and CD3~+T cell (%) in PBMC were tested by FACS, and the IFN-γ and IL-12 (pg/mL) in the supernatants were also detected. Results The proportions of CD3~+T cell in NSCLC patients on 0, 3 and 7 d were (55.15±20.11)%,(57.73±14.08)% and (62.79±7.80)%,respectively, and there was no statistical difference between any two of these results. The proportion of CD4~+CD25~(high)Treg cell in healthy volunteers was (2.14±0.85)%, while that of NSCLC patients was (2.76±0.53)% on 0 d with statistical difference compared to the healthy volunteers (P<0.05). The CD4~+CD25~(high)Treg cell proportion (%) of NSCLC patients on 3 d and 7 d were (2.54±0.57)% and (2.72±0.29)%, respectively, which were both significantly lower than that of 0 d. On 3 d it was even much lower than that on 7 d (P<0.05). IFN-γ and IL-12 of NSCLC patients on 0 d were (34.36±4.38) pg/mL and (33.24±4.36) pg/mL, and no statistical difference was observed when compared with (34.36±4.38) pg/mL and (33.24±4.36) pg/mL in the healthy volunteers. On 3 d and 7 d, IFN-γ of NSCLC patients were (40.42±5.66) pg/mL and (39.27±6.07) pg/mL, respectively, and both were higher than that on 0 d (P<0.05); IL-12 of NSCLC patients were (35.51±5.03) pg/mL and (38.62±6.44) pg/mL, also both were higher than that on 0 d (P<0.05). Conclusions This study suggests that chemotherapy can improve immune functions of NSCLC patients, and may reinforce the anti-tumor immune response.

Objective To study the expression of plasma membrane Ca2+-ATPase isoforms 1~3 (PMCA 1~3 )in the basilar membrane (BM)of the neonatal rat cochlea by Western blot.The PMCA2 content in single BM of the neonatal rat was also examined.Methods Four rats at postnatal 2 days (P2)and 8 days (P8)were respective-ly decapitated and their BMs were isolated.The total proteins of BMs were extracted.The 20μg total proteins were respectively loaded to the gel.The expression of PMCA1-3 was detected by Western blot.Likewise,3μg total proteins from P2 and P8 rat BM were loaded.The expression of PMCA2 was detected by Western blot.Four rats at P8 were decapitated and their BM was isolated.The 5μg,10μg and 20μg total proteins of P8 rat BM were added to the gel and 100 ng,400 ng and 800 ng bovine serum albumin (BSA)were also loaded as reference.After electro-phoresis,the gel was separated into two parts.One part was used for SYPRO staining and the other part was used for PMCA2 detection by Western blot.Results In the 20μg BM total proteins of P2 and P8 rats,the expression of PMCA1 was weak (0.126±0.024,0.131±0.012,respectively),PMCA2 was strong (4.16±0.528,4.25±0.319, respectively),and PMCA3 was barely expressed (0 ).There was a statistical difference among PMCA1 ,PMCA2 and PMCA3(P<0.05).In the 3μg BM total proteins of P2 and P8 rats,the expression of PMCA2 in P8 (4.571± 0.336)was higher than P2 (3.622±0.285).There was a statistical difference(P<0.05).The PMCA2 content in the BM of a P8 rat was about 2 .5 ng.Conclusion There was a different-level expression of PMCA1~3 in the neonatal rat BM with highest expression of PMCA2 ,which could be explained that cochlear hair cells had different requirements of Ca2+ turning for these PMCA isoforms.

Objective To study the expression of plasma membrane Ca2 + -ATPase isoforms 1 -4 and the splice variants at sites A and C in the neonatal rat vestibular organ.Methods Ten rats at postnatal 2 days (P2 ) were decapitated and their vestibular organs (macula utriculi and macula sacculi)were isolated.The total proteins of the vestibular organs were extracted.The expression of PMCA1-4 splice variants at sites A and C was detected by RT-PCR.Results The splice variants of PMCA1-4 at sites A and C in macula utriculi and macula sacculi of neo-natal rat vestibular organs were PMCA1x/b,PMCA2w/(a,b),PMCA3z/(a,b,c)and PMCA4 (x,z)/b.Conclusion The splice variants at sites A and C among PMCA1,PMCA2,PMCA3 and PMCA4 were different in the vestibu-lar organs of neonatal rats,which could be explained that macula utriculi and macula sacculi had different require-ments of Ca2 + turning for these PMCA isoforms.

Adenoidectomy ; adverse effects ; Blood Coagulation Disorders ; etiology ; Child ; Female ; Humans ; Intraoperative Complications ; Tonsillectomy ; adverse effects

Objective To explore the efficacy of Fushe Jiedu Decoction combined with red light on viper bites injury limb swelling and the effects on the inflammatory cytokines. Methods Totally 90 patients were divided into control group and experimental group by using random number table method, with 45 cases in each group. The wounds of the control group were sterilized and given anti-snake venom serum, antibiotics, and tetanus immunoglobulin and supplemented with energy to correct water and electrolyte disturbances. The experimental group was treated with Fushe Jiedu Decoction based on the treatment of control group,150 mL each time,orally,twice a day; Red light was applied at the site of the most obvious swelling of the injured limb, 20 minutes each time, twice a day. The treatment lasted for 6 d. The swelling of injured limbs, serum C-reactive protein (CRP), 5-hydroxytryptamine (5-HT), histamine, tumor necrosis factor-α (TNF-α), interleukin (IL)-6 levels before and after treatment in the two groups were observed. Results Compared with before treatment, the swelling of the limbs disappeared significantly in the experimental group at 3 d and 6 d and in the control group at 6 d, with statistical significance (P<0.01). Compared with the control group at the same time point, the swelling of the limbs in the treatment group was significantly better than that in the control group at 3 d and 6 d, with statistical significance (P<0.01). Compared with before treatment, the levels of CRP, 5-HT, TNF-α, and IL-6 were significantly lower in the two groups, with statistical significance (P<0.05). After treatment, CRP, 5-HT and histamine in the experimental group were significantly better than that in the control group(P<0.05).Conclusion Fushe Jiedu Decoction combined with red light has good efficacy for viper bites injury limb swelling, which can reduce inflammatory cytokines levels of patients.

OBJECTIVE: To explore the relationship between best corrected visual acuity (BCVA) and refraction parameters in myopia. METHODS: Two thousand two hundred and seventy-four patients (4245 eyes) with different degrees of myopia were collected. Their BCVA, diopter of spherical (DS), diopter of cylinder (DC), astigmatism axis, axial length (AL) and corneal thickness were detected. The influence of those parameters on BCVA was studied and the mathematical model of the relationship between BCVA and other parameters including the age and gender of patients was established. RESULTS: The logistic regression analysis showed that there were correlations between the BCVA (y) and DS (x1), DC (x2), gender (x3), AL (x4), corneal thickness (x5), astigmatism axis (x6) and age (x7) (P<0.05): y=0.580 6-0.034 0 x1-0.046 8 x2+0.056 5 x3+0.016 5 x4+ 0.0007 x5+0.000 2 x6-0.005 8 x7. CONCLUSION For people with myopia, age, gender and corneal thickness have small effect on BCVA, while the DS, DC, AL and astigmatism axis have significant effect on BCVA. The BCVA would decline following the extension of DS, DC and AL. It is helpful to assess the vision of myopia by analyzing the refraction parameters comprehensively.
Adolescent ; Adult ; Child ; Cornea/pathology* ; Female ; Forensic Medicine/methods* ; Humans ; Male ; Middle Aged ; Models, Theoretical ; Myopia/physiopathology* ; Refraction, Ocular/physiology* ; Refractometry ; Visual Acuity ; Visual Fields/physiology* ; Young Adult

OBJECTIVEComparative and statistical analysis the HPV infection rate between fresh tissue and Paraffin-embedded Specimens of esophageal squamous cell carcinoma,and comparative the testing results with others regions.

METHODSExtracted the total DNA from the novel fresh tissue and Paraffin-embedded Specimens; Detected the DNA by PCR with universal primer and Detected the HPV type with human papilloma virus nucleic acid amplification-based typing detection reagent kit (Hybribio); Compared the statistical result from the different specimens; analyzed the result between different region.

RESULTSHPV infection rate of fresh tissue is 82.6% with HPV16 (34.8%) and HPV18 (34.8%), and paraffin-embedded specimens is 78.2% with HPV16 (30.4%) and HPV18 (17.4%).

CONCLUSIONThe results provides the first evidence that there wasn't noticeable difference between HPV infection rate of the two specimens. So broader specimen source could be used for HPV testing.

Capsid Proteins ; analysis ; Carcinoma, Squamous Cell ; virology ; DNA, Viral ; isolation & purification ; Esophageal Neoplasms ; virology ; Human papillomavirus 16 ; isolation & purification ; Human papillomavirus 18 ; isolation & purification ; Humans ; Oncogene Proteins, Viral ; analysis ; Papillomaviridae ; isolation & purification ; Papillomavirus Infections ; epidemiology ; Polymerase Chain Reaction

Objective:To observe the therapeutic effect of medical maggot on diabetic foot, and analyze its possible mechanism.Methods:Sixty diabetic foot ulcer patients with Wagner grade 1 or 2 from July 2018 to September 2019 in Second Affiliated Hospital of Dalian Medical University were selected. The patients were divided into control group and experimental group by random digits table methods with 30 cases in each group. The control group was treated with traditional method, and the experimental group was treated with medical maggots. In experimental group, the wound surface Notch 1 mRNA expression before treatment and at the 4th day of treatment was detected by polymerase chain reaction method. The recovery rate 21 d after treatment was compared between 2 groups.Results:The recovery rate in experimental group was significantly higher than that in control group: 100.00% (30/30) vs. 76.67% (23/30), and there was statistical difference ( χ2 = 7.925, P<0.01). In experimental group, there was no statistical difference in the wound surface Notch 1 mRNA expression between before treatment and the 4th day of treatment (0.96 ± 0.08 vs. 0.93 ± 0.08; t = 1.545, P>0.05). Conclusions:Medical maggot has an obvious effect on Wagner grade 1 or 2 diabetic foot ulcers, but its mechanism maybe unrelated to Notch1 signaling pathway.

OBJECTIVETo investigate the potential transmissibility of porcine endogenous retrovirus (PERV) from a newly-developed porcine hepatocyte bioartificial liver (BAL) system prior to human clinical trial by using a live canine model.

METHODSFive normal beagles were treated with the new BAL support system for six hours. Samples of plasma from the BAL system and whole blood from the beagles were collected at regular intervals over the six month study period. DNA and RNA were isolated from both the peripheral blood mononuclear cells (PBMCs) and plasma for evaluation by polymerase chain reaction (PCR) and reverse transcription (RT)-PCR, respectively, to detect PERV and the Sus scrofa cytochrome B normalization standard. In addition, RT activity and the in vitro infectivity of the plasma were detected in HEK293 cells.

RESULTSAll five beagles remained in stable physical health throughout the treatment and survived until the end of the study. PERV RNA-positivity and RT activity were only detected in the plasma samples from the 3rd BAL treatment cycle. All other samples, including PBMCs and plasma, were negative for PERV RNA, PERV DNA, and RT activity. In addition, none of the sera samples showed in vitro infectivity.

CONCLUSIONApplication of our BAL system does not lead to PERV transmission.

Animals ; Cell Line ; Dogs ; Endogenous Retroviruses ; HEK293 Cells ; Hepatocytes ; virology ; Humans ; Leukocytes, Mononuclear ; virology ; Liver, Artificial ; adverse effects ; Models, Animal ; Swine

OBJECTIVETo assess the value of positron emission tomography (PET) with (11)C-choline (CH), (11)C-methionine (MET), (18)F-fluorothymidine (FLT), and (11)C-acetate (AC) in diagnosis of pulmonary abnormalities and the features of pulmonary abnormalities in PET.

METHODSFrom June 2002 to June 2007, 100 patients with pulmonary nodules or masses confirmed by CT scans received PET with special tracers. Fifty-eight patients received CH-PET, 16 patients received MET-PET, 22 patients received FLT-PET, 4 patients received AC-PET. PET data was analyzed by visual method and semiquantitative method with standard uptake value (SUV). Diagnoses were compared with pathology and follow-up survey.

RESULTSFor identification of pulmonary neoplasms with CH-PET, the sensitivity, specificity and accuracy were 84.2% (32/38), 57.9% (11/19) and 75.4% (43/57). In cancer cases, SUV had no correlation with tumor size or age. For identification of pulmonary neoplasms with MET-PET, the sensitivity, specificity and accuracy were 6/7, 6/9 and 75.0% (12/16). In cancer cases, SUV had not correlation with tumor size or age. For identification of pulmonary neoplasms with FLT-PET, the sensitivity, specificity and accuracy were 85.7% (12/14), 2/8 and 63.6% (14/22). In cancer cases, SUV had not correlation with tumor size or age. In AC-PET, only 1 case of pulmonary metastasis of kidney clear cell carcinoma showed acetate avid. Two squamous cell carcinoma and 1 adenocarcinoma didn't appear abnormal in AC-PET.

CONCLUSIONCH, MET, FLT, AC are valuable in diagnosing but also lead to false positive and false negative.

Choline ; Diagnosis, Differential ; Dideoxynucleosides ; Female ; Humans ; Iodoacetates ; Lung Diseases ; diagnostic imaging ; Male ; Methionine ; Positron-Emission Tomography ; methods ; Sensitivity and Specificity