[Comparison and application of postprandial and fasting blood lipid levels in 839 physical examinees in Beijing].

Objective: To investigate the feasibility of application of non-fasting dyslipidemia cutoff values in community population. Methods: Self-control study was used. 839 physical examinees (292 males and 547 females) were recruited in clinical laboratory of Guang'an men Hospital from January to October 2018. The median (interquartile range) of age was 60 (54, 66) years. Blood samples were collected before and at 4 h after a standard breakfast. Comparison of fasting and postprandial lipoprotein levels was performed using Paired-Samples T Test or Two-Related-Samples Wilcoxon. The changes of 4-hour postprandial blood lipid levels and the percentages of postprandial dyslipidemia according to different stratification of fasting dyslipidemia were performed using one-way ANOVA and χ2 test, respectively. Results: Compared with fasting, 4-hour postprandial total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C), non-high density lipoprotein cholesterol (non-HDL-C), apolipoprotein A1 (ApoA1) and apolipoprotein B (ApoB) decreased slightly, postprandial triglyceride (TG) increased by 0.72 mmol/L, and postprandial remnant-like lipoprotein cholesterol (RLP-C) increased by 0.27 mmol/L (t or Z values = 10.26,22.94,24.22,4.71,16.61,26.92,-23.58,-19.35, P<0.05, respectively). According to the non-fasting dyslipidemia cut-off values recommended by the European consensus, there were 10%, 16.6%, 10.1%, 12.3%, 30% and 34.9% of the population in the appropriate levels of fasting TC, LDL-C, HDL-C, non-HDL-C, TG and RLP-C distributed in elevated levels of postprandial, respectively. The changes of 4-hour postprandial TC, LDL-C, non-HDL-C and HDL-C increased with the elevation of fasting level (F=9.50,6.18,8.07,3.86,P<0.01), and the maximum changes of TC≤3.5%, LDL-C≤6.8%, non-HDL-C≤2.9%, HDL-C≤6.3%; the change of 4-hour postprandial TG increased slightly first and then decreased significantly (51.3% vs. 57.9% vs. 39.2%, F=19.05, P<0.01); the change of 4-hour postprandial RLP-C decreased (50.8% vs. 33.2%, F=10.40, P<0.01). The cut-off values of 4-hour postprandial dyslipidemia were TC ≥5.1 mmol/L, LDL-C ≥3.2 mmol/L, HDL-C ≤0.9 mmol/L, non-HDL-C ≥4.0 mmol/L and RLP-C ≥1.0 mmol/L. The cut-off values of borderline elevated and elevated TG levels were ≥2.2 mmol/L and ≥3.4 mmol/L, respectively. Conclusions: The cut-off values of postprandial dyslipidemia including TC, LDL-C, HDL-C, non-HDL-C and RLP-C were preliminarily established in community population, which could be applied to the routine lipid profile evaluation in the physical examination population. And it might be needed that postprandial TG was managed hierarchically according to different cut-off values.

[Relationship between periodontitis and glomerular filtration rate in non-diabetic Chinese elderly patients in Beijing community].

Objective: To investigate the correlation between clinical periodontal indexes of periodontitis and glomerular filtration rate (GFR) in a non-diabetic elderly population in four communities of Shijingshan, Beijing. Methods: This was a cross-sectional study. Questionnaires, blood biochemical examinations, and periodontal indexes were conducted in elderly people (35 to 84 years old) in four communities of Shijingshan, Beijing between May and July 2005. Non-diabetic patients with fasting blood glucose<6.1 mmol/L, postprandial blood glucose<7.8 mmol/L, and ≥ 10 remaining teeth were included. Patients with diabetes, fasting blood glucose ≥6.1 mmol/L or postprandial blood glucose ≥7.8 mmol/L, and total residual teeth less than 10 were excluded. A total of 362 study subjects met the inclusion criteria. The survey subjects were selected by convenient sampling method. The mean full-mouth probing depth (PD), bleeding index (BI), attachment loss (AL), and plaque index (PLI), as well as PD≥4 mm% (the number of sites with PD≥4 mm as a percentage of the total number of sites in full mouth), PD≥5 mm%, PD≥6 mm%, AL≥3 mm%, AL≥4 mm%, AL≥5 mm% and AL≥6 mm% were used for the analysis. Serum creatinine values was used to calculate GFR. GFR≥90 ml/(min·1.73 m2) was defined as normal group and GFR<90 ml/(min·1.73 m2) was defined as reduced group. Univariate analysis was conducted between two groups. Multivariate regression analysis was performed with GFR as dependent variable and adjusted for risk factors such as age, sex, smoking, waist-hip ratio and physical activity. Results: There were 164 subjects in the normal GFR group (45.3%) and 198 in the reduced GFR group (54.7%). Percentage of males in the reduced GFR group, 118 in total, accounting for 59.6%, were significantly higher than in the normal GFR group (73, 44.5%)(P=0.004). The median of age, uric acid, triglyceride, and waist-to-hip ratio (65 years, 323 mmol/L, 1.73 mmol/L, 0.90) were significantly higher in the reduced GFR group than in the normal GFR group (54 years, 277 mmol/L, 1.45 mmol/L, 0.88) (P<0.05). The median of PD mean, AL mean, BI mean, PD≥4 mm%, AL≥3 mm%, and AL≥4 mm% in the reduced GFR group were 2.80 mm, 2.52 mm, 2.06, 20.4%, 46.5%, and 30.4%, respectively, which were significantly higher than those in the GFR normal group (2.60 mm, 2.37 mm, 1.93, 16.6%, 42.9%, 28.9%) (P<0.05). After adjusting for confounding factors such as age, gender, smoking, waist-to-hip ratio and physical activity, the results of logistic regression analysis showed that PD mean, AL mean, PD≥4 mm%, PD≥5 mm%, PD≥6 mm%, AL≥3 mm% and AL≥4 mm% of clinical periodontal indexes were significantly correlated with reduced GFR in this population (OR values were 1.765, 1.879, 1.430, 1.713, 1.771, 1.428, 1.445, respectively, P<0.05). Conclusions: In the non-diabetic elderly population in communities of Shijingshan, Beijing, clinical periodontal indexes reflecting the degree of periodontal tissue destruction were associated with a decreased level of GFR.

Extranodal natural killer/T cell lymphoma with involvement of the bilateral submandibular lymph node mimicking a rhinoscleroma: a diagnostic challenge.

Extranodal natural killer/T-cell lymphoma, nasal type (ENKL) is a rare and aggressive tumor that can mimic inflammatory conditions and other tumors, and present a diagnostic challenge. We report a 57-year-old Chinese man previously misdiagnosed with rhinoscleroma. The patient had undergone multiple biopsies when the histopathological diagnosis of ENKL was made. Because the diagnosis may be obscured by extensive necrosis, multiple biopsies are necessary to make a certain diagnosis. According to the diagnosis process of this patient, the need to consider a neoplastic cause should be highlighted when faced with an aggressive nasal disease not responsive to maximal treatment.

Effects of dietary Enteromorpha powder supplementation on productive performance, egg quality, and antioxidant performance during the late laying period in Zi geese.

This study investigated the effects of dietary Enteromorpha powder supplementation on the productive performance, egg quality, and antioxidant performance of Zi geese during the late laying period. Three hundred twelve Zi geese (1 yr old) were randomly allocated into 2 cohorts to form a control group and an experimental group (with each cohort including 6 replicates and 21 female geese and 5 male geese in each replicate). The control group was fed a basal diet, and the experimental group was fed a diet containing 3% Enteromorpha powder. The data showed that Enteromorpha powder supplementation significantly improved egg production, laying rate, average daily egg weight (P < 0.01), and egg yolk color (P < 0.05). Supplementation decreased the ADFI and feed conversion rate (P < 0.01). Compared with the control group, glutathione peroxidase (GSH-Px) activity was significantly higher in serum and ovary tissue (P < 0.05), but GSH-Px activity was lower in liver tissue (P < 0.01). Malondialdehyde was reduced in liver and ovary tissue (P < 0.05) in the Enteromorpha powder supplementation group. Meanwhile, the expression of the CAT gene was significantly upregulated in the liver (P < 0.01) in the Enteromorpha group. These results indicate that dietary Enteromorpha powder supplementation improved productive performance and reduced the level of lipid peroxidation in Zi geese during the late laying period.

Meta-analysis: Supplementary artificial light and goose reproduction.

Photoperiod affects poultry reproduction, and in birds, photoperiod regulation is a complex physiological process. In modern poultry production, lighting management has become an important and effective management approach for increasing egg production. Geese are domesticated fowl and in many goose production enterprises animals are allowed to roam in outside pens during the day and are housed indoors at night, so the animals can be exposed to artificial lighting during the night periods. Supplementary artificial lighting resulted in improved reproduction in some studies, but reports have been inconsistent. To evaluate the results from previous studies of supplementary lighting on goose egg production, a meta-analysis was conducted to determine optimal supplementary artificial lighting regimens for geese egg production. Results indicated supplementary artificial light increases mean egg production, the length of the period of egg production before there is cessation of egg production capacity, and fertility. In summary, there were evaluations of data from five studies focused on White Roman geese in the meta-analysis conducted in the present study, however, examination of more breeds is necessary to make more definitive assessments of the findings from this meta-analysis.

Long noncoding RNA LSINCT5 is upregulated and promotes the progression of esophageal squamous cell carcinoma.

OBJECTIVE: Long stress-induced noncoding transcripts 5 (LSINCT5) has been reported to be upregulated in several human cancers and related to poor prognosis. However, its involvement in esophageal squamous cell carcinoma (ESCC) remains largely unknown. We aim to evaluate the expression and putative role of LSINCT5 on the progression of ESCC. MATERIALS AND METHODS: LSINCT5 expression was first examined in the ESCC cell lines using RT-qPCR, and the next-generation RNA-Seq technology was employed to analyze and functionally annotate the differential gene expression before and after LSINCT5 knockdown in ESCC was made. Based on the functional annotation results, the effects of LSINCT5 knockdown on cell growth, migration, invasion, and epithelial-to-mesenchymal transition (EMT) were assessed in the ESCC cell lines. Finally, the expression and clinicopathological significance of LSINCT5 in ESCC and corresponding nontumor tissues were further explored using RT-qPCR. RESULTS: The RT-qPCR results showed that LSINCT5 expression was significantly upregulated in the ESCC cell lines. The differential gene expression analysis by next-generation RNA-Seq showed that 138 genes were up-regulated, and 227 genes were downregulated after LSINCT5 was knocked down in the ECA 109 cells. In addition, the functional annotation revealed that the differentially expressed genes were mainly functionally involved in tight junctions, ECM-receptor interactions, and MAPK signaling pathway. Further in vitro studies indicated that the knockdown of LSINCT5 significantly suppressed proliferation, migration, invasion, and EMT in ESCC cells. Finally, a comparative study of paired ESCC and corresponding nontumor tissues showed that LSINCT5 was upregulated in the ESCC tissues, and the increased LSINCT5 expression was related to late clinical stages, large tumor sizes, and lymph node metastasis. CONCLUSIONS: The results indicate that LSINCT5 is upregulated in ESCC and may act as an oncogene promoting the progression of ESCC.

Preliminary results indicate resveratrol affects proliferation and apoptosis of leukemia cells by regulating PTEN/PI3K/AKT pathway.

OBJECTIVE: PTEN-PI3K/AKT signaling pathway is widely involved in the regulation of cell proliferation, cell cycle, apoptosis, and invasion. Resveratrol (Resv) is a natural botanical ingredient involved in several biological activities. It is still unclear in terms of whether Resv may exert anti-leukemia effects by regulating the PTEN-PI3K/AKT pathway. This study investigated the effect of Resv on leukemia cell proliferation and apoptosis by regulating PTEN-PI3K/AKT pathway. PATIENTS AND METHODS: Human normal peripheral blood PBMC cells, and human acute promyelocytic leukemia (APL) cell line NB-4 and HL-60 cells were cultured in vitro. Real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) was used to detect Phosphatase and tensin homolog (PTEN) mRNA expression. Western blot was adopted to test PTEN protein expression. HL-60 and NB-4 cells were treated with 0, 5, 10, and 20 µM Resv, respectively. Cell proliferation was analyzed by cell counting kit8 (CCK-8) assay. The level of caspase-3 was measured by Western blot. HL-60 cells were divided into control group, 20 µM Resv treatment group, and Resv+PTEN inhibitor SF1670 group. Cell apoptosis was determined by flow cytometry. Cell proliferation was assessed by EdU staining. RESULTS: Compared with peripheral blood mononuclear cell (PBMC), PTEN mRNA and protein levels were significantly decreased in NB-4 and HL-60 cells. Resv significantly inhibited the proliferation activity in HL-60 and NB-4 cells, and increased the activity of caspase-3. Resv treatment up-regulated the expression of PTEN and reduced the expression of p-AKT protein in HL-60 cells. However, Resv treatment markedly suppressed the proliferation of HL-60 and induced apoptosis. SF1670 treatment in the presence of Resv significantly antagonized the down-regulation of p-AKT protein expression induced by Resv, resulting in decreased apoptosis and enhanced cell proliferation. CONCLUSIONS: Resv can up-regulate PTEN expression and inhibit the activity of PI3K/AKT pathway to play an anti-leukemia effect through suppressing cell proliferation and inducing apoptosis.

Influence of exosome-derived miR-21on chemotherapy resistance of esophageal cancer.

OBJECTIVE: To explore the influence of exosome-derived micro-ribonucleic acid (miR)-21 on chemotherapy resistance of esophageal cancer and its mechanism. MATERIALS AND METHODS: Human esophageal cancer TE-1 and Eca109/DDP cell lines and human normal esophageal Het-1A cells were cultured, and the exosomes were extracted from cells. After miR-21 was inhibited with an inhibitor and overexpressed with miRNA mimics combined with cisplatin, the cell viability was detected via cell counting kit-8 (CCK-8), the interaction between miR-21 and programmed cell death 4 (PDCD4) was detected via dual-luciferase reporter gene assay, and the changes in the protein level were detected via Western blotting. RESULTS: The expression level of exosome-derived miR-21 in esophageal cancer cells was higher than that in normal esophageal cells, and it was the highest in cisplatin-resistant esophageal cancer cells. After treatment with cisplatin, miR-21 overexpression significantly reduced the invasion ability of esophageal cancer cells. After miR-21 overexpression, the sensitivity of esophageal cancer cells to cisplatin was lowered. MiR-21 interacted with the 3'-untranslated region (UTR) of PDCD4. Moreover, the miR-21 overexpression significantly down-regulated the mRNA and protein levels of PDCD4 in cells. CONCLUSIONS: MiR-21 affects the sensitivity of esophageal cancer to cisplatin through targeting PDCD4.

[Investigation and analysis of protein and energy intake in adult patients with severe burns].

Objective: To investigate and analyze the actual intake of protein and energy in adult patients with severe burns during post burn days (PBDs) 3 to 14. Methods: Records of 52 adult patients with severe burns [37 males and 15 females, (37±9) years old], admitted to the Department of Plastic Surgery and Burns of Tianjin First Central Hospital from January 1st 2011 to December 31st 2017 and meeting the study inclusion criteria, were retrospectively analyzed. Nutrition intake from routes of oral diet, enteral nutrition preparations, and parenteral nutrition preparations of patients during PBDs 3 to 14 were obtained from critical care records. During PBDs 3 to 7 and PBDs 8 to 14, the personal daily total energy intake and the ratio of it to energy target of patients were calculated and compared; the personal daily intake of carbohydrate, fat, and protein and calorigenic percentages of carbohydrate, fat, and protein accounted for total energy intake, and the ratios of non-protein calories to total nitrogen of patients were calculated and compared; the personal daily energy and protein intake of patients from routes of oral diet, enteral nutrition preparations, and parenteral nutrition preparations were analyzed; the percentages of energy intake from routes of oral diet, enteral nutrition preparations, and parenteral nutrition preparations accounted for total energy intake, and the percentages of protein intake from routes of oral diet, enteral nutrition preparations, and parenteral nutrition preparations accounted for total protein intake of patients were calculated. Vomiting and diarrhea of patients during PBDs 3 to 7 and PBDs 8 to 14 were recorded. Levels of serum albumin, prealbumin, blood glucose, and triglycerides, 24-hour excretion of urinary nitrogen, nitrogen balance values of patients on PBDs 7 and 14 were recorded or calculated. Data were processed with paired t test and chi-square test. Results: (1) The personal daily total energy intake of patients during PBDs 3 to 7 and PBDs 8 to 14 were (8 696±573) and (11 980±1 259) kJ respectively, and ratios of them to energy target [(13 290±1 561) kJ] were 65.4% and 90.1% respectively. The personal daily total energy intake of patients during PBDs 3 to 7 was obviously lower than that during PBDs 8 to 14 (t=18.172, P<0.01). (2) The personal daily intake of carbohydrate, fat, and protein of patients during PBDs 8 to 14 were obviously higher than those during PBDs 3 to 7 (t=15.628, 22.231, 10.403, P<0.01). The personal daily calorigenic percentages of carbohydrate, fat, and protein accounted for total energy intake of patients were 56.8%, 25.1%, and 18.3% respectively during PBDs 3 to 7 and 54.2%, 27.0%, and 18.7% respectively during PBDs 8 to 14. The calorigenic constituent ratio of personal daily intake of carbohydrate, fat, and protein accounted for total energy intake of patients during PBDs 3 to 7 was close to that during PBDs 8 to 14 (χ(2)=0.185, P>0.05). The ratios of non-protein calories to total nitrogen (kJ∶g) of patients during PBDs 3 to 7 and PBDs 8 to 14 were 469∶ 1 and 456∶ 1 respectively. (3) The personal daily energy intake of patients from routes of oral diet and parenteral nutrition preparations during PBDs 8 to 14 [(4 394±978), (5 723±898) kJ] were obviously higher than those during PBDs 3 to 7 [(2 137±453), (4 855±825) kJ, t=26.516, 6.583, P<0.01], while the personal daily energy intake of patients from routes of enteral nutrition preparations during PBDs 8 to 14 was close to that during PBDs 3 to 7 (t=1.922, P>0.05). The constituent ratio of personal daily energy during PBDs 3 to 7 was close to that during PBDs 8 to 14 (χ(2)=4.100, P>0.05). The personal daily protein intake of patients from route of oral diet during PBDs 8 to 14 was (58±22) g, obviously higher than (25±6) g during PBDs 3 to 7 (t=14.514, P<0.01). The personal daily protein intake of patients from routes of enteral nutrition preparations and parenteral nutrition preparations during PBDs 8 to 14 was close to those during PBDs 3 to 7 (t=1.924, 1.110, P>0.05). The constituent ratio of personal daily protein intake from routes of oral diet, enteral nutrition preparations, and parenteral nutrition preparations accounted for total protein intake during PBDs 8 to 14 was close to that during PBDs 3 to 7 (χ(2)=5.634, P>0.05). (4) There were 3 patients with vomiting and 4 patients with diarrhea during PBDs 3 to 7, and 1 patient experienced both of them during PBDs 8 to 14. The levels of serum albumin, prealbumin, blood glucose, and triglycerides, 24-hour excretion of urinary nitrogen, and nitrogen balance values of patients on PBDs 7 and 14 were (29±4) and (30±4) g/L, (132±42) and (171±48) mg/L, (7.4±2.8) and (6.7±2.8) mmol/L, (1.5±0.7) and (1.4±0.7) mmol/L, (30.5±4.3) and (34.5±2.2) g, -(25.1±2.6) and -(23.7±3.9) g, respectively. Conclusions: The personal daily total energy intake of patients during PBDs 3 to 7 was lower than that during PBDs 8 to 14. The calorigenic constituent ratio of personal daily intake of carbohydrate, fat, and protein accounted for total energy of patients during PBDs 3 to 7 was close to that during PBDs 8 to 14. Energy and protein intake were mostly derived from parenteral nutrition preparations during PBDs 3 to 7, while those during PBDs 8 to 14 were mainly derived from parenteral nutrition preparations and oral diet.

Synergistic effects of chlorambucil and TRAIL on apoptosis and proliferation of Raji cells.

OBJECTIVE: Tumor necrosis factor (TNF) related apoptosis inducing ligand (TRAIL) can induce the apoptosis of tumor cells, but leaving its effect on malignant lymphoma largely insignificant, as these tumors may develop drug resistance. Chlorambucil (CLB) had definitive treatment efficacy on low-malignant non-Hodgkin lymphoma (NHL), but with unclear efficacy on highly malignant Burkitt lymphoma. A study has been shown that CLB could enhance the sensitivity of chronic lymphatic leukemia cells against TRAIL. This work aims to investigate the effect of CLB combined with TRAIL on in vitro proliferation and apoptosis of Raji cells. MATERIALS AND METHODS: TRAIL (0, 20, 40 and 80 ng/ml) or CLB (0, 2.5 5 and 10 µM) was used to treat Raji cells. Cell counting kit 8 (CCK-8) was used to test proliferation whilst flow cytometry was employed to examine the apoptosis. The effect of TRAIL or CLB treatment on expression of death receptor 4 (DR4) and DR5 was tested. Combined treatment (80 ng/ml TRAIL and 10 µM CLB) was adopted for observing Raji cell proliferation and apoptosis. RESULTS: Single treatment of TRAIL or CLB has weak effects of inducing apoptosis or inhibiting proliferation. TRAIL concentration has no significant effects on DR4/DR5 expression in Raji cells, whilst CLB treatment elevated those gene expressions. Combined treatment of TRAIL and CLB had more potent effects regarding cell proliferation inhibition or apoptosis induction compared to single treatment. CONCLUSIONS: TRAIL or CLB has weak inhibitor effects on Raji cell proliferation or induction of apoptosis. Via up-regulating DR4 and DR5 expression, CLB has synergistic effects with TRAIL to potentiate the apoptotic induction and proliferation inhibition role.

[Hyper-IgE syndrome in adulthood: a case report and literature review].

Objective: To describe the clinical features of hyper-IgE syndrome (HIES), with emphasis on refractory pulmonary cystic lesions as the initial presentation in adulthood. Methods: A case of HIES presenting with pulmonary cystic lesions in an adult patient was retrospectively analyzed. We used "hyper-IgE syndrome" as the Chinese keywords, "hyper-IgE syndrome, China" as the English keywords to retrieve the literature from Wanfang database/CNKI database and Pubmed database until April 2016. The clinical data were pooled and analyzed. Results: A 19 year old female patient was admitted to our hospital because of recurrent cough and expectoration as the chief complaint. Physical examination revealed broad nasal bridge and scoliosis, and chest CT showed gradually enlarged and increased cystic lesions. Laboratory studies demonstrated significantly increased blood eosinophils and serum level of total IgE, together with a definite chemotactic dysfunction of neutrophils. A further detection of STAT3 mutation was negative. The diagnosis of HIES was made and antibiotic treatment resulted in disease remission. Literature review found 45 reports including 37 in Chinese and 11 in English. Eight cases of adult HIES were reported, and all the patients were male, aging 18 to 31 years. Prolonged disease course, recurrent infection and formation of cystic lesions in the lungs were important features of HIES. Early diagnosis and treatment with specific antibiotics were important for improving outcome of the patients. Conclusion: Refractory pulmonary cystic lesions can be the initial presentation in adult HIES. Understanding of the clinical characteristics of HIES will be helpful to avoid misdiagnosis and improve prognosis.

[Expression of major histocompatibility complex class â chain-related protein A and B in operable lung adenocarcinoma and its clinical significance].

OBJECTIVE: To explore the expression of major histocompatibility complex classⅠchain-related protein A and B (MICA/B) in operable lung adenocarcinoma and its clinical significance. METHODS: Between January 2002 and December 2003, 100 patients with operable lung adenocarcinoma in People's Hospital of Zhengzhou were collected. The expression of MICA/B was examined by immunohistochemistry staining.According to immunohistochemical staining, the cases with score ≥5 points were high expression of MICA/B while <5 points were low expression of MICA/B.Chi-square test was utilized to analyze the relationship between MICA/B expression and clinicopathologic features. The association between MICA/B protein and overall survival in the patients with operable lung adenocarcinoma was analyzed by Kaplan-Meier survival curve, together with Log-Rank test. The COX regression model was established to analyze the single and combined effects of these covariants. RESULTS: The percentage with high expression of MICA/B protein in operable lung adenocarcinoma tissue was 38% (38/100). The over-expression rate of MICA/B protein in the group with mutant epidermal growth factor receptor (EGFR) gene was significantly higher than that in the group with wild EGFR gene (93.8% vs 11.8%, P<0.001). No statistical significance was observed between the expression of MICA/B protein and other clinicopathologic parameters, including age, sex, TNM stage, T- staging, histological grade and lymph node metastasis. Kaplan-Meier analysis showed that overexpression of MICA/B protein was closely associated with shorter survival time (10.4 vs 28.9 months, P=0.005). CONCLUSION: Overexpression of MICA/B in operable lung adenocarcinoma tissue is closely related to the mutations of EGFR and overall survival, which may be a poor prognosis indicator in patients with operable lung adenocarcinoma.

Association between the pre-miR-196a2 rs11614913 polymorphism and gastric cancer susceptibility in a Chinese population.

We did a case-control study to provide a more comprehensive evaluation of the association of the pre-miR-196a2 rs11614913 polymorphism with gastric cancer. Between January 2013 and December 2014, 182 patients newly diagnosed with primary gastric cancer and 182 control subjects were recruited at Zhengzhou People's Hospital. For SNP genotyping, we used the Assay Designer 3.1 to design the primers of polymerase chain reaction. Using the chi-square test, we found that patients with gastric cancer were more likely to be alcohol drinkers (χ(2) = 4.4, P = 0.04), to have a family history of cancer in the first relatives (χ(2) = 5.29, P = 0.02), and to be infected with Helicobacter pylori (χ(2) = 23.39, P < 0.001). A significant difference in the genotype distributions of rs11614913 was observed in our study (χ(2) = 6.66, P = 0.04). By logistic regression analysis, we found that the CC genotype of rs11614913 was associated with an increased risk of gastric cancer in a codominant model (OR = 2.68, 95%CI = 1.17-6.44). By stratification analysis, we found that the CC genotype was associated with a strongly increased risk of gastric cancer in drinkers when compared with the TT+TC genotype (OR = 5.63, 95%CI = 1.54-30.76). In conclusion, the results of our study suggest an association between the rs11614913 gene polymorphism and an elevated risk of gastric cancer, especially in drinkers.

Association between ERCC5 gene polymorphisms and gastric cancer risk in a Chinese population.

We conducted a hospital-based case-control study to investigate the association between 3 common SNPs in the ERCC5 gene (rs1047768, rs751402, and rs17655) and the risk of developing gastric cancer. Between January 2013 and December 2014, samples were collected from 216 gastric cancer patients and 216 control subjects. ERCC5 rs1047768, rs751402, and rs17655 polymorphisms were genotyped by polymerase chain reaction combined with restriction fragment length polymorphism analysis. By conditional logistic regression analysis, the GG genotype of rs17655 was found to be associated with an elevated risk of gastric cancer in a codominant model, and the adjusted OR (95%CI) was 1.96 (1.10-3.50). Moreover, in a dominant model, the CG + GG genotype of rs17655 was correlated with an increased risk of gastric cancer compared to the CC genotype (OR = 1.48; 95%CI = 1.00-2.22). rs1047768 and rs751402 were not significantly correlated with an increased or decreased gastric cancer risk.

HLA-A*24:02:96, a novel variant of HLA-A*24:02:01:01, identified in a Chinese individual by sequence-based typing.

HLA-A*24:02:96 shows one nucleotide difference from HLA-A*24:02:01:01 at position 318 in exon 2 from C to T.

Identification of a novel HLA-B*40 allele, HLA-B*40:324, by sequence-based typing, in a Chinese individual.

The new allele, HLA-B*40:324 differs from B*40:63 by two nucleotide changes in exon 3.

A novel allele HLA-A*11:152 was identified by sequence-based typing in a Chinese individual.

HLA-A*11:152 differs from A*11:01:01 by a single nucleotide at position 266 in Exon 2.

Cloning and expression pattern analysis of BkGRAS2 from Betula kirghisorum.

GRAS proteins are plant-specific transcription factors that are involved in the regulation of root and shoot growth. Here, we cloned BkGRAS2 from Betula kirghisorum (abbreviated to Bk) and analyzed the physicochemical properties and expression pattern of the encoded protein. BkGRAS2 had an open reading frame of 1614 bp encoding 537 amino acid residues. The deduced BkGRAS2 protein was hydrophilic, and it contained highly conserved VHIID and SAW motifs. BkGRAS1 and BkGRAS2 showed considerable sequence similarities. An expression analysis indicated that BkGRAS2 was expressed in root, stem, and leaf, with the highest level in the leaf. Expression of BkGRAS2 was increased following stress treatment with 0.6% NaHCO3. Transient expression analysis of GFP-BkGRAS2 in onion epidermal cells revealed that the BkGRAS2 protein was localized in the cytoplasm, but could also be detected in the nucleus. Our study provides the basis for future research on the role of the GRAS gene family in B. kirghisorum.

Erlotinib enhances the CIK cell-killing sensitivity of lung adenocarcinoma A549 cells.

We examined the effects and molecular mechanism of the epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor erlotinib on NKG2D ligand expression in human lung adenocarcinoma A549 cells and the cytotoxicity of cytokine-induced killer cells. Flow cytometry was used to detect NKG2D ligand expression in A549 cells under effects of erlotinib and EGFR downstream molecules, including LY294002 (phosphoinositide 3-kinase inhibitor), SB203580 (mitogen-activated protein kinase inhibitor), and STAT21 (signal transduction and transcription 3 inhibitor) after 24 h. A lactate dehydrogenase release assay was used to detect, at different effector-to-target ratios, the A549 cell killing activity of cytokine-induced killer cells before and after treatment with 10 mM erlotinib. Erlotinib suppressed MICA expression in A549 cells and upregulated MICB and UL16 binding protein 1 expression. EGFR downstream molecules mitogen-activated protein kinase and signal transduction and transcription 3 inhibitor did not affect the expression of NKG2D ligands in A549 cells. The phosphoinositide 3-kinase inhibitor reduced MICA expression in A549 cells, while erlotinib enhanced the killing sensitivity of cytokine-induced killer cells in A549 cells. The anti-lung carcinoma effects of EGFR tyrosine kinase inhibitor were associated with the sensitivity of lung cancer cells to enhanced immune cell killing.