Serum

摘要： BACKGROUND Gastric hepatoid adenocarcinoma(GHA)is a rare and aggressive cancer that is characterized by foci with features of both hepatocellular differentiation and adenomatous differentiation.However,there is currently no standard treatment for this disease,which has a poor prognosis.CASE SUMMARY A 72-year-old male with a body mass index of 20.9 was diagnosed with GHA with perigastric lymph node and liver metastasis.He underwent first-line chemotherapy but that failed.Pembrolizumab and bevacizumab with chemotherapy were used in the second-line treatment.The progression-free survival and overall survival were 14 mo and 16 mo,respectively,after treatment.In addition,the main adverse reaction was tolerable.The patient did not die of tumor progression.CONCLUSION The combination of pembrolizumab and bevacizumab with chemotherapy is an effective and safe regimen for GHA and may be recommended as a new choice for GHA treatment.Further studies should evaluate this treatment in a larger cohort or a randomized controlled trial.

摘要： BACKGROUND Early detection of colorectal neoplasms,including colorectal cancers(CRCs)and advanced colorectal adenomas(AAs),is crucial to improve patient survival.Circulating microRNAs(miRNAs)in peripheral blood are emerging as noninvasive diagnostic markers for multiple cancers,but their potential for screening colorectal neoplasms remains ambiguous.AIM To identify candidate circulating cell-free miRNAs as diagnostic biomarkers in patients with colorectal neoplasms.METHODS The study was divided into three phases:(1)Candidate miRNAs were selected from three public miRNA datasets using differential gene expression analysis methods;(2)an independent set of serum samples from 60 CRC patients,60 AA patients and 30 healthy controls(HCs)was included and analyzed by quantitative real-time polymerase chain reaction for miRNAs,and their diagnostic power was detected by receiver operating characteristic(ROC)analysis;and(3)the origin and function of miRNAs in cancer patients were investigated in cancer cell lines and tumor tissues.RESULTS Based on bioinformatics analysis,miR-627-5p and miR-199a-5p were differentially expressed in both the serum and tissues of patients with colorectal neoplasms and HCs and were selected for further study.Further validation in an independent cohort revealed that both circulating miR-627-5p and miR-199a-5p were sequentially increased from HCs and AAs to CRCs.The diagnostic power of miR-672-5p yielded an area under the curve(AUC)value of 0.90,and miR-199a-5p had an AUC of 0.83 in discriminating colorectal neoplasms from HCs.A logistic integrated model combining miR-199a-5p and miR-627-5p exhibited a higher diagnostic performance than either miRNA.Additionally,the levels of serum miR-627-5p and miR-199a-5p in CRC patients were significantly lower after surgery than before surgery and the expression of both miRNAs was increased with culture time in the culture media of several CRC cell lines,suggesting that the upregulated serum expression of both miRNAs in CRC might be tumor derived.Furthermore,in vitro experiments revealed that miR-627-5p and miR-199a-5p acted as tumor suppressors in CRC cells.CONCLUSION Serum levels of miR-199a-5p and miR-627-5p were markedly increased in patients with colorectal neoplasms and showed strong potential as minimally invasive biomarkers for the early screening of colorectal neoplasms.

摘要： [Objectives]This study was conducted to investigate the possibility of adding grape seeds and tea polyphenols to improve the health of finless eels(Monopterus albus).[Methods]Twelve cages were selected in the same water body and divided into 4 groups,each with 3 parallel groups.The control group was fed with common finless eel feed,and the experimental groups were fed with feed supplemented with grape seeds,tea polyphenols,and grape seed-tea polyphenol compound(with a ratio of grape seeds to tea polyphenols at 1∶1),respectively.The feeding amount of each additive was 1%.The experiment was carried out by feeding medicated feed for 3 d and ordinary feed for 3 d,that is,alternately feeding medicated feed and ordinary feed.The experiment lasted for 18 d.[Results]Six serum enzymatic indices were detected after the breeding.The results showed that compared with the control group,the three groups of samples had a certain protective effect on the liver in terms of liver function indices.In terms of immunity evaluation,the tea polyphenol group and the grape seed-tea polyphenol complex group could increase the immunity of eels to varying degrees.In terms of antioxidant capacity,all three groups of samples could increase the body's antioxidant capacity.The results of this study showed that adding tea polyphenols and grape seeds to the feed simultaneously could effectively protect the liver of fish,and simultaneously enhance their antioxidant and non-specific immune functions.[Conclusions]This study provides a reference for the application of the two Chinese herbal medicines,grape seeds and tea polyphenols,in finless eel farming.

摘要： BACKGROUND As an antioxidant,serum superoxide dismutase(SOD)have been found to be associated with hypertension.METHODS The data were derived from the Chinese Longitudinal Healthy Longevity Survey(CLHLS),a prospective cohort study in China.We explored the association between serum SOD and blood pressure(BP)using multivariable correction analysis in an older Chinese population.RESULTS We observed a significantly gradual downward trend in the association between serum SOD levels and diastolic BP(DBP)in participants with lower serum SOD levels(58 IU/mL).Similar results showed a significant gradual downward trend in associations between serum SOD levels and the risk of diastolic hypertension only at SOD58 IU/mL)were an effect modifier of the association between serum SOD and DBP(interaction P=0.0038)or the risk of diastolic hypertension(interaction P=0.0050).CONCLUSIONS Our study indicated for the first time that there was an L-shaped association between serum SOD levels and the risk of diastolic hypertension in the older Chinese population.

摘要： BACKGROUND Colorectal cancer(CRC)is a highly malignant cancer with a high incidence and mortality in China.It is urgent to find a diagnostic marker with higher sensitivity and specificity than the traditional approaches for CRC diagnosis.AIM To provide new ideas for the diagnosis of CRC based on serum proteomics.METHODS Specimens from 83 healthy people,62 colon polyp(CRP)patients,and 101 CRC patients were analyzed by matrix-assisted laser desorption/ionization time-offlight mass spectrometry.The diagnostic value of the profiles of differentially expressed proteins was then analyzed.RESULTS Compared with the healthy control group,CRC patients had elevated expression of 5 proteins and reduced expression of 14 proteins.The area under the curve(AUC)for a differentially expressed protein with a mass-to-charge ratio of 2022.34 was the largest;the AUC was 0.843,which was higher than the AUC of 0.717 observed with carcinoembryonic antigen(CEA),and the sensitivity and specificity of this identified marker were 75.3%and 79.5%,respectively.After cross-validation,the accuracy of diagnosis using levels of this differentially expressed protein was 82.37%.Compared with the CRP group,the expression of 3 proteins in the serum of CRC patients was elevated and 11 proteins were expressed at reduced levels.Proteins possessing mass-to-charge ratio values of 2899.38 and 877.3 were selected to establish a classification tree model.The results showed that the accuracy of CRC diagnosis was 89.5%,the accuracy of CRP diagnosis was 81.6%,and the overall accuracy of this approach was 86.3%.The overall sensitivity and specificity of diagnosis using the proteomics approach were 81.8%and 66.75%,respectively.The sensitivities and specificities of diagnoses based on CEA and carbohydrate antigen 19-9 expression were 55.6%and 91.3%and 65.4%and 65.2%,respectively.CONCLUSION We demonstrated that serum proteomics may be helpful for the detection of CRC,and it may assist clinical practice for CRC diagnosis.

摘要： OBJECTIVE To investigate serum triglycerides in relation to all-cause,cardiovascular,and non-cardiovascular mortality in an elderly Chinese population.METHODS The study participants(n=3565)were elderly(≥60 years)community dwellers living in a suburban town of Shanghai.Hypertriglyceridemia was defined as a serum triglycerides concentration≥2.30 mmol/L(definite)and≥1.70 mmol/L(borderline),respectively.RESULTS The prevalence of definite and borderline hypertriglyceridemia at baseline was 7.5%and 29.5%,respectively.It was higher in women(n=1982,9.0%and 33.8%,respectively)than men(n=1583,6.2%and 27.9%,respectively),in obese and over-weight participants(n=1566,10.5%and 36.4%,respectively)than normal weight participants(n=1999,5.6%and 27.1%,respect-ively),and in diabetic participants(n=177,11.9%and 39.0%,respectively)than non-diabetic participants(n=3388,7.5%and 30.8%,respectively).During a median of 7.9 years follow-up,all-cause,cardiovascular and non-cardiovascular deaths occurred in 529,216 and 313 participants,respectively.In analyses according to the quintile distributions of serum triglycerides concentration,the sex-and age-standardized mortality rate was lowest in the middle quintile for all-cause,cardiovascular and non-cardiovascu-lar mortality(18.6,7.8 and 11.9 per 1000 person-years,respectively,versus 21.5,10.5 and 12.7 per 1000 person-years,respectively,in the two lower quintiles and 21.7,9.5 and 14.0 per 1000 person-years,respectively,in the two higher quintiles).The fully adjus-ted hazard ratios(95%CI)for the middle quintile versus the combined two lower with two higher quintiles were 0.85(95%CI:0.67-1.07,P=0.17),0.81(95%CI:0.54-1.19,P=0.28)and 0.87(95%CI:0.64-1.17,P=0.35)for all-cause,cardiovascular and non-cardiovascular mortality,respectively.CONCLUSIONS Our study showed high prevalence of hypertriglyceridemia,especially when defined as borderline and in obese and overweight participants,and mildly but non-significantly elevated risks of cardiovascular mortality relative to the middle level of serum triglycerides.

摘要： [Objectives]To investigate the serum metabolomic characteristics of primary dysmenorrhea rat model induced by estradiol benzoate combined with oxytocin,and to reveal its material basis.[Methods]20 female SD rats were randomly divided into control group and model group.The primary dysmenorrhea rat model was established by subcutaneous injection of estradiol benzoate for 10 consecutive days and intraperitoneal injection of oxytocin on the last day.The serum samples of rats in control group and model group were collected by ultra-performance liquid chromatography(UPLC)quadrupole time-of-flight mass spectrometry(Q-TOF-MS).The differential metabolites were identified by multivariable pattern recognition method and endogenous metabolite database,and the metabolic pathways were enriched by Metaboanalyst 5.0 platform.[Results]There were significant differences in serum metabolic profiles between the two groups.A total of 36 potential biomarkers of primary dysmenorrhea including L-tyrosine,glycocholic acid,citric acid,palmitoyl carnitine and cholesterol were screened and identified,mainly involving metabolic pathways such as phenylalanine,tyrosine and tryptophan biosynthesis,glycerophospholipid metabolism,and primary bile acid biosynthesis.[Conclusions]The serum metabolic profile of primary dysmenorrhea rats deviates significantly from that of healthy rats,and there are multiple metabolic pathway disorders,which are mainly related to phenylalanine,tyrosine and tryptophan biosynthesis,glycerophospholipid metabolism,and primary bile acid biosynthesis.

摘要： Background:Chicken is the most consumed meat worldwide and the industry has been facing challenging myopathies.Wooden breast(WB),which is often accompanied by white striping(WS),is a serious myopathy adversely afecting meat quality of breast muscles.The underlying lipid metabolic mechanism of WB afected broilers is not fully understood.Results:A total of 150 chickens of a white-feathered,fast-growing pure line were raised and used for the selection of WB,WB+WS and control chickens.The lipids of the breast muscle,liver,and serum from diferent chickens were extracted and measured using ultra performance liquid chromatography(UPLC)plus Q-Exactive Orbitrap tandem mass spectrometry.In the breast,560 lipid molecules were identifed.Compared to controls,225/225 of 560 lipid molecules(40.2%)were identifed with diferential abundance(DA),including 92/100 signifcantly increased neutral lipids and 107/98 decreased phospholipids in the WB/WB+WS groups,respectively.The content of monounsaturated fatty acids(MUFA)was signifcantly higher,and the polyunsaturated fatty acids(PUFA)and saturated fatty acids(SFA)were signifcantly lower in the afected breasts.In the liver,434 lipid molecules were identifed,and 39/61 DA lipid molecules(6.7%/14.1%)were detected in the WB and WB+WS groups,respectively.In the serum,a total of 529 lipid molecules were identifed and 4/44 DA lipid molecules(0.8%/8.3%)were detected in WB and WB+WS group,respectively.Compared to controls,the content of MUFAs in the serum and breast of the WB+WS group were both signifcantly increased,and the content of SFAs in two tissues were both signifcantly decreased.Only fve lipid molecules were consistently increased in both liver and serum in WB+WS group.Conclusions:We have found for the frst time that the dominant lipid profle alterations occurred in the afected breast muscle.The relative abundance of 40.2%of lipid molecules were changed and is characteristic of increased neutral lipids and decreased phospholipids in the afected breasts.Minor changes of lipid profles in the liver and serum of the afected groups were founded.Comprehensive analysis of body lipid metabolism indicated that the abnormal lipid profle of WB breast may be independent of the liver metabolism.

摘要： BACKGROUND Early detection,early diagnosis,and early treatment are currently accepted methods that can effectively improve the efficacy of colorectal cancer(CRC)treatment.Exosomes were demonstrated to be potential tumor molecular markers.AIM To evaluate the diagnostic value of CRC by detecting four exosomal microRNAs(miRNAs)(miR-15b,miR-16,miR-21,and miR-31)that were demonstrated to have potential diagnostic value in serum.METHODS Relative expression levels of miR-15b,miR-16,miR-21,and miR-31 in 123 CRC,117 colorectal adenoma,and 150 healthy controls were detected,and single and panel models were evaluated.The 2-ΔΔCt method was used to calculate the relative expression of miRNA compared to the internal control(U6).Eighty-one CRC patients,67 colorectal adenoma patients,and 90 healthy controls were used for validation.RESULTS Compared to the healthy control group,the best indicator of the four miRNAs was miR-15b,and the sensitivity and specificity were 81.33%and 91.80%,respectively.For miR-15b,miR-21,and miR-31 individually,the sensitivity and specificity were 91.95%and 97.62%,95.06%and 94.44%,respectively.Compared to the colorectal adenoma group,miR-15b,miR-16,and miR-21 in the CRC group showed significant differences(P<0.05).The best single indicator was miR-16,with a sensitivity and specificity of 79.05%and 71.55%.The sensitivity and specificity of a panel that included miR-15b,miR-16,and miR-21 were 81.21%and 81.03%,and 85.19%and 82.09%,respectively,in the validation.CONCLUSION We built and validated a diagnostic model containing miR-15b,miR-21,and miR-31 expression levels to discriminate the healthy control group and CRC group,and its sensitivity and specificity were 95.06%and 94.44%,respectively.The miR-15b,miR-16,and miR-21 panel was used to discriminate the colorectal adenoma group and CRC group with a sensitivity and specificity of 85.19%and 82.09%,respectively.

摘要： For the experiment, 8 newborn male Holstein calves were selected that had the same feeding environment, and were of similar ages. They were randomly divided into 2 groups, with 4 in each group. The treatments consisted of feeding active probiotics (Group P) and a normal fed control group (Group C). The growth performance and blood indices were measured;rumen fluid samples were collected after weaning, and 16SrDNA sequencing and LC-MS metabolome detection were performed. Compared with the control group, relative abundances of Deltaproteobacteria, Desulfovibrionales, Bacteroidales_ BS11_gut_group, Desulfovibrionaceae, Bacteroidales_S24-7_group, Acetobacteraceae, Ruminococcaceae_NK4A214_group, Asaia, [Ruminococcus] gauvreauii_group, Desulfovibrio, Kingella, Selenomonas, Lachnoclostridium in group P were significantly different (P of 2-methylbenzoic acid and myo-inositol were significantly increased (P 0.05). These results showed that compared with normally fed calves, the growth performance and blood indices of probiotic-fed calves were changed, but the differences were not significant. Probiotic-fed calves showed significant differences in rumen fluid and a small number of metabolites, which were mainly involved in the pathway of carbohydrate metabolism. It proves that the supplemental active probiotics had an effect on the rumen microflora.