Albumin is the single most abundant protein in the human serum. Its roles in physiology and pathology are diverse. Serum albumin levels have been classically thought to reflect the nutritional status of patients. This...Albumin is the single most abundant protein in the human serum. Its roles in physiology and pathology are diverse. Serum albumin levels have been classically thought to reflect the nutritional status of patients. This concept has been challenged in the last two decades as multiple factors, such as inflammation, appeared to affect albumin levels independent of nutrition. In general, cancer patients have a high prevalence of hypoalbuminemia. As such, the role of hypoalbuminemia in patients with colorectal cancer has received significant interest. We reviewed the English literature on the prognostic value of pretreatment albumin levels in colorectal cancer. We also consolidated the evidence that led to the current understanding of hypoalbuminemia as an inflammatory marker rather than as a nutritional one among patients with colorectal cancer.展开更多
Objective This study aimed to evaluate the relationships between the albumin/globulin ratio(AGR),neutrophil/lymphocyte ratio(NLR),and platelet/lymphocyte ratio(PLR)and clinicopathological information for gastric cance...Objective This study aimed to evaluate the relationships between the albumin/globulin ratio(AGR),neutrophil/lymphocyte ratio(NLR),and platelet/lymphocyte ratio(PLR)and clinicopathological information for gastric cancer patients.In addition,the prognostic values of these hematological parameters for resectable gastric cancer patients undergoing a total gastrectomy were determined.Methods A total of 245 patients with gastric cancer who underwent a total gastrectomy at our hospital between January 1,2005,and December 30,2015,were enrolled into this study.The preoperative AGR,NLR,and PLR in the serum samples of the patients were measured.The relationships between the hematological parameters and the disease-free survival(DFS)as well as overall survival(OS)were analyzed by statistical analysis.Results The cutoff values of AGR,NLR,and PLR were 1.57,3.5,and 193,respectively.Univariate analyses demonstrated that a low AGR,a high NLR,and a high PLR were significant risk factors for a poor prognosis.According to multivariate analysis,a high PLR was found to be independently associated with a poor survival.Additionally,when age was considered as a stratified factor,univariate analyses demonstrated that a low AGR had the tendency to be correlated with a shorter DFS in nonelderly patients(<65 years old).A low AGR was significantly correlated with a shorter DFS and OS in elderly patients(≥65 years old).Conclusion AGR,NLR,and PLR are independent risk factors associated with a poor gastric cancer survival by univariate analysis,and AGR is an independent risk factor for predicting DFS and OS in elderly patients(≥65 years old)with gastric cancer after total gastrectomy.展开更多
The pretreatment serum albumin/globulin ratio (AGR)has been used as a prognostic biomarker for various cancer types.However, the prognostic value of the AGR for prostate cancer,especially for metastatic prostate cance...The pretreatment serum albumin/globulin ratio (AGR)has been used as a prognostic biomarker for various cancer types.However, the prognostic value of the AGR for prostate cancer,especially for metastatic prostate cancer (mPCa)after maximal androgen blockade (MAB),remains unclear.The aim of this study was to evaluate the prognostic value of the pretreatment serum AGR for mPCa treated with MAB.This retrospective study included 214 mPCa patients receiving MAB from October 2007 to March 2017. The correlation of the AGR with survival was estimated using Kaplan-Meier analysis and Cox proportional hazards models.The cutoff value of the AGR was 1.45 according to the receiver operating characteristic curve.Kaplan-Meier analysis demonstrated that patients with a low AGR (<1.45)had poor outcomes in terms of progression-free survival (PFS)and cancer-specific survival (CSS). Multivariate Cox analyses showed that the AGR was an independent predictor of PFS (hazard ratio [HR]=0.642;95%confidence interval [CI]:0.430-0.957;P=0.030)and CSS (HR =0.412;95%CI:0.259-0.654;P<0.001).Furthermore,in a subset of 79 patients with normal serum albumin levels (≥40.0 g l^-1),the serum AGR remained an independent predictor of CSS (P=0.009). The pretreatment AGR was an independent prognostic biomarker for PFS and CSS in patients with mPCa receiving MAB.In addition,the AGR remained effective for the prediction of CSS in patients with normal albumin levels (≥40 g l^-1).However,further prospective studies are needed to confirm our conclusions.展开更多
The correlation of serum arylesterase(PON1) activity on phenylacetate determined by an integrated method to clas-sical biochemical indexes of liver damage was investigated for the use of PON1 activity to evaluate live...The correlation of serum arylesterase(PON1) activity on phenylacetate determined by an integrated method to clas-sical biochemical indexes of liver damage was investigated for the use of PON1 activity to evaluate liver damage.PON1 reaction curve as absorbance at 270 nm for 0.20 mmol/L phenylacetate hydrolysis was analyzed by the integrated method to determine maximal PON1 reaction rate.Classical biochemical indexes of liver damage were determined routinely.The 95% confidence threshold of PON1 activity in sera from healthy individuals was 2.12 mkat/L [(4.73±1.31) mkat/L,n=105].PON1 activity in clinical sera was closely correlated to serum albumin,total protein and the ratio of albumin to globulins,but was weakly correlated to both direct and total bilirubin in serum.There were no correlations of PON1 activity to γ-glutamyltransferase,alkaline phos-phatase,alanine aminotransferase and aspartate aminotransferase.Among 127 clinical sera with PON1 activity>2.12 mkat/L,there were 92% healthy individuals examined by albumin,90% healthy individuals examined by total protein,88% healthy individuals examined by total bilirubin,86% healthy individuals examined by direct bilirubin and 64% healthy individuals examined by the ratio of albumin to globulins,respectively.In each group of healthy individuals judged by classical biochemical indexes of close correlation to PON1 activity,percentage of healthy individuals examined by PON1 activity was always >80%.These results suggested PON1 activity on phenylacetate estimated by the integrated method was also suitable for the evaluation of liver damage.展开更多
文摘Albumin is the single most abundant protein in the human serum. Its roles in physiology and pathology are diverse. Serum albumin levels have been classically thought to reflect the nutritional status of patients. This concept has been challenged in the last two decades as multiple factors, such as inflammation, appeared to affect albumin levels independent of nutrition. In general, cancer patients have a high prevalence of hypoalbuminemia. As such, the role of hypoalbuminemia in patients with colorectal cancer has received significant interest. We reviewed the English literature on the prognostic value of pretreatment albumin levels in colorectal cancer. We also consolidated the evidence that led to the current understanding of hypoalbuminemia as an inflammatory marker rather than as a nutritional one among patients with colorectal cancer.
基金This study was supported by the Science Foundation of Peking University First Hospital.
文摘Objective This study aimed to evaluate the relationships between the albumin/globulin ratio(AGR),neutrophil/lymphocyte ratio(NLR),and platelet/lymphocyte ratio(PLR)and clinicopathological information for gastric cancer patients.In addition,the prognostic values of these hematological parameters for resectable gastric cancer patients undergoing a total gastrectomy were determined.Methods A total of 245 patients with gastric cancer who underwent a total gastrectomy at our hospital between January 1,2005,and December 30,2015,were enrolled into this study.The preoperative AGR,NLR,and PLR in the serum samples of the patients were measured.The relationships between the hematological parameters and the disease-free survival(DFS)as well as overall survival(OS)were analyzed by statistical analysis.Results The cutoff values of AGR,NLR,and PLR were 1.57,3.5,and 193,respectively.Univariate analyses demonstrated that a low AGR,a high NLR,and a high PLR were significant risk factors for a poor prognosis.According to multivariate analysis,a high PLR was found to be independently associated with a poor survival.Additionally,when age was considered as a stratified factor,univariate analyses demonstrated that a low AGR had the tendency to be correlated with a shorter DFS in nonelderly patients(<65 years old).A low AGR was significantly correlated with a shorter DFS and OS in elderly patients(≥65 years old).Conclusion AGR,NLR,and PLR are independent risk factors associated with a poor gastric cancer survival by univariate analysis,and AGR is an independent risk factor for predicting DFS and OS in elderly patients(≥65 years old)with gastric cancer after total gastrectomy.
文摘The pretreatment serum albumin/globulin ratio (AGR)has been used as a prognostic biomarker for various cancer types.However, the prognostic value of the AGR for prostate cancer,especially for metastatic prostate cancer (mPCa)after maximal androgen blockade (MAB),remains unclear.The aim of this study was to evaluate the prognostic value of the pretreatment serum AGR for mPCa treated with MAB.This retrospective study included 214 mPCa patients receiving MAB from October 2007 to March 2017. The correlation of the AGR with survival was estimated using Kaplan-Meier analysis and Cox proportional hazards models.The cutoff value of the AGR was 1.45 according to the receiver operating characteristic curve.Kaplan-Meier analysis demonstrated that patients with a low AGR (<1.45)had poor outcomes in terms of progression-free survival (PFS)and cancer-specific survival (CSS). Multivariate Cox analyses showed that the AGR was an independent predictor of PFS (hazard ratio [HR]=0.642;95%confidence interval [CI]:0.430-0.957;P=0.030)and CSS (HR =0.412;95%CI:0.259-0.654;P<0.001).Furthermore,in a subset of 79 patients with normal serum albumin levels (≥40.0 g l^-1),the serum AGR remained an independent predictor of CSS (P=0.009). The pretreatment AGR was an independent prognostic biomarker for PFS and CSS in patients with mPCa receiving MAB.In addition,the AGR remained effective for the prediction of CSS in patients with normal albumin levels (≥40 g l^-1).However,further prospective studies are needed to confirm our conclusions.
基金Project (No. 30200266) supported by the National Natural Science Foundation of China
文摘The correlation of serum arylesterase(PON1) activity on phenylacetate determined by an integrated method to clas-sical biochemical indexes of liver damage was investigated for the use of PON1 activity to evaluate liver damage.PON1 reaction curve as absorbance at 270 nm for 0.20 mmol/L phenylacetate hydrolysis was analyzed by the integrated method to determine maximal PON1 reaction rate.Classical biochemical indexes of liver damage were determined routinely.The 95% confidence threshold of PON1 activity in sera from healthy individuals was 2.12 mkat/L [(4.73±1.31) mkat/L,n=105].PON1 activity in clinical sera was closely correlated to serum albumin,total protein and the ratio of albumin to globulins,but was weakly correlated to both direct and total bilirubin in serum.There were no correlations of PON1 activity to γ-glutamyltransferase,alkaline phos-phatase,alanine aminotransferase and aspartate aminotransferase.Among 127 clinical sera with PON1 activity>2.12 mkat/L,there were 92% healthy individuals examined by albumin,90% healthy individuals examined by total protein,88% healthy individuals examined by total bilirubin,86% healthy individuals examined by direct bilirubin and 64% healthy individuals examined by the ratio of albumin to globulins,respectively.In each group of healthy individuals judged by classical biochemical indexes of close correlation to PON1 activity,percentage of healthy individuals examined by PON1 activity was always >80%.These results suggested PON1 activity on phenylacetate estimated by the integrated method was also suitable for the evaluation of liver damage.
