Analysis of the effects of early screening combined with blood lactate on the severity of patients with sepsis.

This work aimed to investigate the adoption value of blood lactic acid (BLA) combined with the National Early Warning Score (NEWS) in the early screening of sepsis patients and assessing their severity. The data and materials utilized in this work were obtained from the electronic medical record system of 537 anonymized sepsis patients who received emergency rescue in the emergency rescue area of Liuzhou People's Hospital, Guangxi, from July 1, 2020, to December 26, 2020. Based on the 28-day outcomes of sepsis patients, the medical records were rolled into Group S (407 survival cases) and Group D (130 dead cases). Basic information such as the mode of hospital admission, initial management, use of emergency ventilator within 24 h of admission, NEWS score, arterial oxygen pressure/alveolar oxygen pressure ratio (PaO2/PAO2), alveolar-arterial oxygen difference (A-aDO2), serum creatinine (SCr), blood urea nitrogen (BUN), oxygenation index (OI), Glasgow Coma Scale (GCS), D-dimer, use of vasoactive drugs within 24 h of admission, C-reactive protein (CRP), procalcitonin (PCT), interleukin-6 (IL-6), N-terminal pro-B-type natriuretic peptide (NT-proBNP), quick Sequential Organ Failure Assessment (qSOFA) score, SOFA score, BLA level, NEWS with lactate (NEWS-L) score, SOFA score including lactate level (SOFA-L) score, Intensive Care Unit (ICU) length of stay, total hospital stay, ICU stay/total hospital stay, and septic shock condition were compared between groups. Logistic regression analysis was performed to assess the impact of various predictive factors on prognosis and to plot the receiver operating characteristic (ROC) curve. The results suggested marked differences between Group S and Group D in terms of mean age (t = -5.620; OR = -9.96, 95 % CI: -13.44∼-6.47; P < 0.001). Group S showed drastic differences in terms of mode of hospital admission (χ2 = 9.618, P < 0.01), method of initial management (χ2 = 51.766, P < 0.001), use of emergency ventilator within 24 h of admission (χ2 = 98.564, P < 0.001), incidence of septic shock (χ2 = 77.545, P < 0.001), use of vasoactive drugs within 24 h of admission (χ2 = 102.453, P < 0.001), heart rate (t = -4.063, P < 0.001), respiratory rate (t = -4.758, P < 0.001), oxygenation status (χ2 = 20.547, P < 0.001), NEWS score (t = -6.120, P < 0.001), PaO2/PAO2 ratio (t = 2.625, P < 0.01), A-aDO2 value (Z = -3.581, P < 0.001), OI value (Z = -3.106, P < 0.01), PLT value (Z = -2.305, P < 0.05), SCr value (Z = -3.510, P < 0.001), BUN value (Z = -3.170, P < 0.01), D-dimer (Z = -4.621, P < 0.001), CRP level (Z = -4.057, P < 0.001), PCT value (Z = -2.783, P < 0.01), IL-6 level (Z = -2.904, P < 0.001), length of hospital stay (Z = -4.138, P < 0.001), total hospital stay (Z = -8.488, P < 0.001), CCU/total hospital stay (Z = -9.118, P < 0.001), NEWS score (t = -6.120, P < 0.001), SOFA score (t = -6.961, P < 0.001), SOFA-L score (Z = -4.609, P < 0.001), NEWS-L score (Z = -5.845, P < 0.001), BLA level (Z = -6.557, P < 0.001), and GCS score (Z = 6.909, P < 0.001) when compared to Group D. The use of ventilators, septic shock, PCT, NEWS score, GCS score, SOFA score, SOFA-L score, NEWS-L score, and BLA level were identified as independent risk factors for predicting the prognosis of sepsis patients (P < 0.001). The areas under ROC curve (AUC) of blood lactic acid, PCT, NEWS, NEWS-L, GCS, SOFA, and SOFA-L were 0.695, 0.665, 0.692, 0.698, 0.477, 0.700, and 0.653, respectively. These findings indicate that the combination of BLA with NEWS (NEWS-L) score and SOFA score has certain advantages in assessing the prognosis of sepsis.

The impact of blood lactic acid levels on retinopathy of prematurity morbidity.

BACKGROUND: Retinopathy of prematurity (ROP) is a common disease in premature infants. In recent years, most researchers have used lactic acid as poor prognosis marker in premature infants. This study aims to explore investigate the impact of blood lactic acid levels on ROP. METHODS: A retrospective case-control study was conducted, and infants with severe ROP born with birth weight (BW) ≤ 1500 g and gestational age (GA) ≤ 32 weeks were enrolled from November 2016 to November 2021. Infants without any stage ROP were included as controls and were matched with ROP infants (1:2) by GA and BW. All selected preterm infants were tested for heel terminal trace blood gas analysis within two weeks of life. Changes in blood lactic acid levels in the two groups were compared and analyzed by using multivariate logistic regression analysis. Sensitivity and specificity were analyzed by receiver operating characteristic (ROC) curve. RESULTS: There were 79 infants in ROP group, and 158 infants in control group. The levels of blood lactic acid were significantly higher in the ROP group on days 1, 3, 5, and 7 compared with control group (all p < 0.05). The blood lactic acid levels on day 5 was an independent risk factor for ROP (p = 0.017). The area under the curve (AUC), sensitivity and specificity were highest on day 5 (AUC 0.716, sensitivity 77.2% and specificity 62.0%, respectively, p < 0.001), and higher on days 1, 3, and 7. CONCLUSION: A high blood lactic acid level in the first seven days of life may be associated with increases ROP occurrence in very preterm infants, and suggest blood lactic acid level may impact the occurrence of ROP.

Antifatigue Effect of Asiaticoside in Mice by Attenuating Oxidative Stress.

BACKGROUND: Asiaticoside is one of the main components of triterpenoid saponins extracted from Centella asiatica. Asiaticoside has shown the effects of wound healing, osteoclastogenesis, anti-inflammatory, anti-cancer, and improving cognition in multiple human disease models. However, studies on the antifatigue effects of asiaticoside have not been explored. Therefore, the aim of this study was to investigate the potential antifatigue effect and underlying mechanism of asiaticoside administration on exhaustive exercise performance. METHODS: Male Kunming mice were divided into four groups randomly (n = 20/group). Saline (10 mL/kg) was administered to the model control group and the other three experimental groups were fed with low (10 mg/kg), medium (20 mg/kg) and high (40 mg/kg) asiaticoside once/daily for 14 days. The antifatigue effect of asiaticoside on mice was estimated by analyzing changes in body weight, weight-loaded swimming time, rotating time, lactic acid, urea nitrogen, liver/muscle glycogen, serumal superoxide dismutase, superoxide dismutase and the liver tissues of hematoxylin and eosin (H&E) staining. RESULTS: The results indicated that no significant differences were observed in the body weight of each group (p > 0.05). Compared with the model control group, supplementation of asiaticoside significantly prolonged the weight-loaded swimming time and rotating time; Decreased the blood lactic acid (LA), blood urea nitrogen (BUN), and serumal malonaldehyde (MDA); And increased the content of liver/muscle glycogen and serumal superoxide dismutase levels (SOD) (p < 0.05). Furthermore, the pathological results of the liver were improved greatly. The maximal effect was observed in the medium group of 20 mg/kg. CONCLUSIONS: Asiaticoside is capable of reducing the fatigue effect by regulating energy consumption, energy metabolism and improving antioxidant activity after exercise. While there are still some shortcomings in this study, our findings provide a scientific basis for developing an asiaticoside-based antifatigue supplement.

Safety and antifatigue effect of Korean Red Ginseng capsule: A randomized, double-blind and placebo-controlled clinical trial.

Background: In physical activity or labor, the human body is in a state of high intensity stress, and all parts or physiological functions of the body respond positively to maintain or balance the need for movement. The human body has many physiological changes in the process of movement, and fatigue is the external manifestation of various complex changes inside the human body. Fatigue is also a physiological mechanism of self-protection after the body reaches a certain level of activity, which can prevent the occurrence of life-threatening excessive functional failure. The generation of fatigue is a very complex process, and its mechanism has not been concluded yet. Therefore, it is an important work to search and screen the effective components of natural plants that have anti-fatigue effect and to explore their mechanism. Methods: This was a 8-week, randomized, double-blind, placebo-controlled clinical trial. A total of 110 subjects who passed physical examination were included according to the scheme design, and randomly divided into a test group which was given KRG and a placebo control group. The calculation is carried out according to the standard of sub-high-intensity exercise test. Results: There was no adverse effect on safety index of subjects after taking red ginseng capsule. After KRG treatment, subjective strength grade is significant lower than placebo treatment. Blood lactic acid content is significantly get lower after trial in KRG group, and significant lower than placebo group. Creatine phosphokinase(CK) content is significantly get lower after trial in KRG group, and significant lower than placebo group. Conclusion: According to the criterion in the test scheme, the result shows that KRG is helpful on relieving physical fatigue.

A Botanical Product Containing Cistanche and Ginkgo Extracts Potentially Improves Chronic Fatigue Syndrome Symptoms in Adults: A Randomized, Double-Blind, and Placebo-Controlled Study.

Dietary therapy may be beneficial in alleviating symptoms of chronic fatigue syndrome (CFS), a disorder that is characterized by extreme fatigue and other symptoms, but the cause of which remains unclear. The aim of this study was to evaluate the protective effect of a botanical product containing cistanche (Cistanche tubulosa [Schenk] Wight) and ginkgo (Ginkgo biloba L.) extracts on adults with CFS in a randomized, double-blind, placebo-controlled clinical trial. A total of 190 subjects (35-60 years old, non-obese) with CFS were randomized to receive one tablet of a low dose (120-mg ginkgo and 300-mg cistanche), a high dose (180-mg ginkgo and 450-mg cistanche) or a placebo once daily for 60 days. Blood samples and responses on the Chalder fatigue scale (CFQ 11), the World Health Organization's quality of life questionnaire (WHOQOL), and the sexual life quality questionnaire (SLQQ) were collected at baseline and post-intervention. CFS symptoms of impaired memory or concentration, physical fatigue, unrefreshing sleep, and post-exertional malaise were significantly improved (p < 0.001) in both of the treatment groups. The botanical intervention significantly decreased physical and mental fatigue scores of CFQ 11 and improved WHOQOL and SLQQ scores of the subjects (p < 0.01). Levels of blood ammonia and lactic acid in the treatment groups were significantly lower than those of the placebo group (low-dose: p < 0.05; high-dose: p < 0.01). In addition, the change in lactic acid concentration was negatively associated with the severity of CFS symptoms (p = 0.0108) and was correlated with the change in total physical fatigue score of the CFQ (p = 0.0302). Considering the trivial effect size, the results may lack clinical significance. In conclusion, this botanical product showed promising effects in ameliorating the symptoms of CFS. Clinical trials with improved assessment tools, an expanded sample size, and an extended follow-up period are warranted to further validate the findings. Clinical Trial Registration: https://clinicaltrials.gov/, identifier: NCT02807649.

Anti-fatigue activity of hemp leaves water extract and the related biochemical changes in mice.

To explore novel sources of anti-fatigue drugs and food, the anti-fatigue activity of hemp leaves water extract (HLWE) was investigated through exhaustive swimming tests of mice. The median exhaustion swimming time of mice gavaged with HLWE reached 55.4 min, which was 156.8% and 87.8% longer than that of the control group and Rhodiola group, respectively. Then, several biochemical parameters related to fatigue were determined to explore the possible anti-fatigue reasons. The blood lactic acid concentration of mice in HLWE group was 0.76 mmol/L, which was 24.8% lower than that in the control group. Compared with the control group, the glutathione peroxidases activity of mice in HLWE group increased by 296.2%. Based on the results, HLWE exhibited outstanding anti-fatigue activity through reducing the accumulation of lactic acid and improving the activities of defense antioxidant enzymes. It shows appealing potential for development and utilization as novel anti-fatigue food or drugs.

Effects of ulinastatin combined with furosemide on myocardial enzymes,renal function and adverse reactions in patients with acute renal failure after cardiopulmonary resuscitation / 中国基层医药

Objective To explore the effects of ulinastatin combined with intravenous pump injection of furosemide on myocardial enzymes ,renal function and adverse reactions in patients with acute renal failure ( ARF) after cardiopulmonary resuscitation (CPR).Methods From January 2016 to May 2018,117 patients with ARF after successful CPR in the Second Peopleˊs Hospital of Hefei were divided into observation group ( n ＝59) and control group(n＝58) using simple random method.The control group received routine treatment ,while the observation group added ulinastatin combined with intravenous pump infusion of furosemide .Myocardial enzymology, renal function, metabolism,inflammatory index,adverse reaction and survival rate were compared.Results Three and 7 days after treatment,the hydroxybutyrate dehydrogenase ( HDBH), isoenzymes of creatine kinase isoenzyme ( CK －MB) and mitochondrial aspartate aminotransferase isoenzyme (m－AST) were decreased in the two groups ,and compared with the control group,which of the observation group were lower [HDBH:(231.42 ±31.15)U／L vs.(268.59 ±34.87)U／L; F＝12.01,P＝0.00;CK－MB:(32.38 ±4.15)ng／mL vs.(37.57 ±3.96) ng／mL;F＝15.12,P＝0.00;m－AST:(25.18 ±4.24) U／L vs.(33.92 ±5.60) U／L;F＝12.36,P＝0.00].After treatment,the blood urea nitrogen (BUN),24h urine protein quantity and creatinine ( Cr) in the two groups increased firstly and then decreased ,and compared with the control group ,those of the observation group were lower [BUN:(7.02 ±1.66)mmol／L vs.(8.47 ± 1.38)mmol／L;F＝11.24,P＝0.00;Cr:(82.69 ±9.87) μmol／L vs.(90.18 ±10.37) μmol／L;F＝10.39,P＝0.00;24h urine protein quantity:(15.43 ±2.17) mg vs.(18.62 ±3.14) mg;F＝11.06,P＝0.00].Three and 7 days after treatment,the levels of blood lactic acid (Lac),hypersensitive C－reactive protein(hs－CRP) and tumor necrosis factor－α( TNF－α) were decreased in the two groups ,and compared with the control group ,those of the observation group were lower [ Lac:(1.18 ±0.27) mmol／L vs.(2.17 ±0.34) mmol／L,F ＝16.29, P ＝0.00;hs－CRP:(4.89 ±0.81)mg／L vs.(6.17 ±1.10) mg／L,F＝13.41,P＝0.00;TNF－α:(72.18 ±7.62) ng／L vs. (83.16 ±7.79)ng／L,F＝11.39,P＝0.00].The incidence rates of adverse reactions in the observation group and the control group were 5.09% and 1.72%,respectively,the difference was statistically significant (χ2 ＝0.24,P＝0.62).The survival rates in the observation group and the control group were 50 cases (84.75%) and 39 cases (67.24%) respectively,the difference was statistically significant (χ2 ＝4.92,P＝0.02).Conclusion Intravenous pump injection of furosemide combined with ulinastatin can protect the heart and kidney ,and improve the survival rate of patients with ARF after CPR and it is worthy of popularizing.

Effects of ulinastatin combined with furosemide on myocardial enzymes, renal function and adverse reactions in patients with acute renal failure after cardiopulmonary resuscitation / 中国基层医药

Objective@#To explore the effects of ulinastatin combined with intravenous pump injection of furosemide on myocardial enzymes, renal function and adverse reactions in patients with acute renal failure(ARF) after cardiopulmonary resuscitation(CPR).@*Methods@#From January 2016 to May 2018, 117 patients with ARF after successful CPR in the Second People's Hospital of Hefei were divided into observation group(n=59) and control group(n=58) using simple random method.The control group received routine treatment, while the observation group added ulinastatin combined with intravenous pump infusion of furosemide.Myocardial enzymology, renal function, metabolism, inflammatory index, adverse reaction and survival rate were compared.@*Results@#Three and 7 days after treatment, the hydroxybutyrate dehydrogenase(HDBH), isoenzymes of creatine kinase isoenzyme(CK-MB) and mitochondrial aspartate aminotransferase isoenzyme(m-AST) were decreased in the two groups, and compared with the control group, which of the observation group were lower [HDBH: (231.42±31.15)U/L vs.(268.59±34.87)U/L; F=12.01, P=0.00; CK-MB: (32.38±4.15)ng/mL vs.(37.57±3.96)ng/mL; F=15.12, P=0.00; m-AST: (25.18±4.24)U/L vs.(33.92±5.60)U/L; F=12.36, P=0.00]. After treatment, the blood urea nitrogen(BUN), 24h urine protein quantity and creatinine(Cr) in the two groups increased firstly and then decreased, and compared with the control group, those of the observation group were lower[BUN: (7.02±1.66)mmol/L vs.(8.47±1.38)mmol/L; F=11.24, P=0.00; Cr: (82.69±9.87)μmol/L vs.(90.18±10.37)μmol/L; F=10.39, P=0.00; 24h urine protein quantity: (15.43±2.17)mg vs.(18.62±3.14)mg; F=11.06, P=0.00]. Three and 7 days after treatment, the levels of blood lactic acid(Lac), hypersensitive C-reactive protein(hs-CRP) and tumor necrosis factor-α(TNF-α) were decreased in the two groups, and compared with the control group, those of the observation group were lower [Lac: (1.18±0.27)mmol/L vs.(2.17±0.34)mmol/L, F=16.29, P=0.00; hs-CRP: (4.89±0.81)mg/L vs.(6.17±1.10)mg/L, F=13.41, P=0.00; TNF-α: (72.18±7.62)ng/L vs.(83.16±7.79)ng/L, F=11.39, P=0.00]. The incidence rates of adverse reactions in the observation group and the control group were 5.09% and 1.72%, respectively, the difference was statistically significant(χ2=0.24, P=0.62). The survival rates in the observation group and the control group were 50 cases (84.75%) and 39 cases (67.24%) respectively, the difference was statistically significant(χ2=4.92, P=0.02).@*Conclusion@#Intravenous pump injection of furosemide combined with ulinastatin can protect the heart and kidney, and improve the survival rate of patients with ARF after CPR and it is worthy of popularizing.

Prognostic value of APACHE Ⅱ,SOFA score and blood lactic acid changes in heat stroke patients combined with MODS / 中国职业医学

OBJECTIVE: To evaluate the prognostic value of acute physiology and chronic health evaluation Ⅱ(APACHEⅡ), sequential organ failure assessment(SOFA) score and the blood lactic acid in heat stroke patients combined with multiple organ dysfunction syndrome(MODS). METHODS: A judge sampling method was used to select 42 cases of heat stroke patients combined with MODS as study subjects. They were divided into survival group(23 cases) and death group(19 cases) according to prognosis. The APACHEⅡ, SOFA score and blood lactate level after admission to intensive care unit(ICU) were detected. The prognostic value of each index was analyzed according to receiver operating characteristic curve(ROC) curve. RESULTS: At the 48 th hour after admission to ICU, the APACHEⅡ and SOFA scores of the patients in the death group were higher than those in the survival group(P<0.05). At the 6 th hour after admission to ICU, the blood lactate level in the death group increased compare with that in the survival group(P<0.05). APACHEⅡ or SOFA scores at 48 hours, and the blood lactate levels at the 1 st, 2 nd, and 6 th hours after admission to ICU were all positively correlated with prognosis(P<0.05). ROC curve analysis showed that APACHEⅡ and SOFA scores at 48 hours, and the blood lactate levels at the 1 st, 2 nd, and 3 rd hours after admission to ICU could be used to evaluate the prognosis(P<0.01). CONCLUSION: The dynamic monitoring of APACHEⅡ, SOFA score and the blood lactic acid have important clinical significance on the prognosis of heat stroke patients with MODS.

Relationship between blood lactic acid, blood procalcitonin, C-reactive protein and neonatal sepsis and corresponding prognostic significance in sick children.

The study was conducted to evaluate the relationship between the blood lactic acid (BLA) level, serum procalcitonin (PCT), C-reactive protein (CRP) and the severity and prognosis of neonatal sepsis. A retrospective analysis was conducted on 90 children with sepsis admitted into the Intensive Care Unit (ICU) of the Hubei Institute for Nationalities Af liated Hospital hospital. Patients were divided into the non-survival group and the survival group. Severity of the 90 patients was evaluated according to Neonatal Critical Illness Score (NCIS). Observations were made on changes of the levels of BLA, PCT and CRP, correlation between BLA, PCT, CRP and NCIS as well as the association of the levels of these proteins with the prognosis of the patients. The 90 sick children were divided into the survival group (61 cases, 67.7%) and the non-survival group (29 cases, 32.2%). They were further stratified into the extremely severe group (n=20), severe group (n=39) and non-severe group (n=31) according to NCIS scoring standard. The BLA and NCIS scores of the non-survival group were significantly greater than those of the survival group. The difference was statistically significant (P<0.05). We found that there was a significant negative correlation between the BLA values and NCIS scores of the two groups. We also demonstrated significant positive correlation between the BLA value, PCT and CR (P<0.05). We observed a significant negative correlation between PCT, CRP and NCIS scores (P<0.05). The PCT level of the non-survival group was significantly higher than that of the survival group (P<0.05), while the NCIS score was significantly lower than that of the survival group (P<0.05). The CRP and PCT protein expression results of the sepsis patients were higher than those of the control group. Therefore, there is a significant correlation between BLA, CRP, PCT and NCIS. The lower the NCIS score is, the more significant the increase of BLA, PCT and CRP. Thus, the combined detection of levels of BLA, PCT and CRP may predict the severity of neonatal sepsis patients and their prognosis.

Crelational Research of the Level of Plasma Procalcitonin, Blood Lactic Acid and Endotoxin in Patients of Severe Pneumonia Complicated with Sepsis / 现代检验医学杂志

Objective To evaluate the clinical value of the level of plasma procalcitonin,blood lactic acid an1 endotoxin in patients of severe pneumonia complicated with sepsis.Methods The 40 cases of severe pneumonia complicated with sepsis(observation group)were analyzed retrospectively,they were divided into survival group included 20 cases and the death group included 20 cases.Meanwhile the 20 cases of healthy persons were selected as control group.The worst score of Acute Physiology and Chronic Health Evaluation Ⅱ (APACHE Ⅱ) within 24 hours after admission were record.The level of plasma procalcitonin,blood lactic acid and endotoxin were compared between three groups.In addition do a correlation study between the above indexes and the score of APACHE Ⅱ.Results The level of plasma Procalcitonin,blood lactic acid and endotoxin of observation group increased significantly compared with the control group [(0.02±0.01 ng/ml,0.87 ± 0.27 mmol/L,4.15±1.63 pg/ml) vs (18.29±11.02 ng/ml,6.55 ± 3.02 mmol/L and 15.5±10.38 pg/ml),t=10.48,11.79,6.75,all P＜0.05].The level of plasma procalcitonin,blood lactic acid and endotoxin of the death group increased significantly compared with the survival group [(9.52±2.93 ng/ml,4.26±1.78 mmol/L,7.62±3.04 pg/ml) vs (27.06±8.88 ng/ml,8.84± 2.14 mmol/L and 23.39± 9.00 pg/ml),t=8.39,7.35,7.42,all P＜0.05].In the all patients of severe pneumonia complicated with sepsis,there was positive correlation among plasma procalcitonin,blood lactic acid,endotoxin and the score of APACHE Ⅱ (r=0.919,P=0.001;r=0.914,P=0.002;r=0.909,P=0.004).Conclusion The level of plasma procalcitonin,blood lactic acid and endotoxin are very important indexes in assessment of the severity and the prognosis of severe pneumonia complicated with sepsis,that has important value in clinical application.

Effects of active component of Radix Isatidis on anti-anoxia and anti-fatigue in mice / 中国药理学通报

Aim To observe the effects of active com-ponent of Radix Isatidis ( ACRI ) on anti-anoxia and anti-fatigue in mice and investigate its possible mecha-nism. Methods Based on the weights, the mice were randomly divided into 5 groups: blank control group, ACRI 25, 50 and 100 mg·kg-1 groups, positive drug ( American ginseng liquid) control group 3 mL·kg-1 . Drugs were administered to the mice for about 14 con-secutive days, and during the experiment general situa-tions of mice were observed. The experiment of bearing hypoxia at normal pressure and the experiment of swim-ming while weight-bearing were conducted to study the effect of ACRI on anti-anoxia and anti-fatigue in mice. Then the superoxide dismutase ( SOD ) activities, the content of maleic dialdehyde ( MDA ) of mice serum and liver and blood urea nitrogen, blood lactic acid, liver glycogen were detected, in order to investigate its mechanism. Results ACRI decreased the growth rate of body weight in mice significantly, obviously pro-longed the survival time of anoxic mice at normal pres-sure and the swimming time of loaded mice, enhanced the SOD activities of mice blood and liver, decreased the MDA content of mice blood and liver, increased the content of liver glycogen, and decreased the blood urea nitrogen and blood lactic acid in mice after swim-ming. Conclusion ACRI has the anti-anoxia and anti-fatigue functions.

Effects of Ludisia discolor aqueous extract on exercise capacity,serum lactic acid, urea nitrogen and hepatic glycogen in mice / 药学实践杂志

Objective To investigate the effect against exercise-indused fatigue in mice by aqueous extract of Ludisia dis-color and its mechanism .Methods Male mice were randomly divided into five groups including low ,middle ,high dose groups [aqueous extract of Ludisia discolor at dose of 1 .22 ,2 .44 ,4 .88 g/(kg · d) respectively ] ,positive control group [aqueous ex-tract of Rhodiola ,at dose of 2 .34 g/(kg · d)] and control group (distilled water ) .After intragastric administration for seven days ,mice were measured for loading swimming time ,and were tested 90 minutes after loading swimming for blood urea nitro-gen ,blood lactic acid and hepatic glycogen levels .Results The blood urea nitrogen was significantly decreased (P<0 .05) in aqueous extract of Ludisia discolor groups ,and hepatic glycogen was significantly increased (P<0 .05) in a dose-dependent manner .The blood lactic acid was significantly decreased in high dose group ,and weight loading swimming time was prolonged (P<0 .05) .The effects of Ludisia discolor is similar compared to Rhodiola .Conclusion The aqueous extract of Ludisia dis-color has anti-fatigue action in mice .The mechanism might be related with the increased glycogen reserves ,increased glucose aerobic decomposition ,as well as reduced anaerobic glucolysis and reduced protein breakdown .

Clinical significance of dynamic monitoring of blood lactic acid, oxygenation index and C-reactive protein levels in patients with severe pneumonia.

The aim of the present study was to analyze the clinical significance of the dynamic monitoring of blood lactic acid levels, the oxygenation index and C-reactive protein (CRP) levels in patients with severe pneumonia. The clinical data of 34 cases with severe pneumonia were collected. According to the clinical outcome, the patients were divided into a survival group (n=26) and a fatality group (n=8). Various factors, including the blood lactic acid level, oxygenation index, CRP level and acute physiology and chronic health evaluation II (APACHE II) score, were retrospectively analyzed in order to investigate whether these values had clinical significance for the prognosis of the patients. No statistically significant differences with regard to age, gender, initial concentrations of blood lactic acid and CRP, and APACHE II scores were observed between the two groups at admission to the Intensive Care Unit. However, the blood lactic acid levels were found to decrease to a normal level within 12-24 h after treatment in the survival group, while the levels were maintained at a higher concentration in the fatality group, even at 72 h after treatment (P<0.05). Furthermore, the oxygenation index in the survival group was significantly higher when compared with that in the fatality group. The oxygenation index was maintained at a normal level in the survival group, while the oxygenation index levels were below normal and continued to decline in the fatality group. A positive correlation was observed between the blood lactic acid level and the APACHE II scores (r=0.656, P<0.05). Therefore, the present study demonstrated that dynamic monitoring of blood lactic acid, oxygenation index and CRP levels in patients with severe pneumonia can be used to evaluate the therapeutic efficiency, in addition to serving as a prognosis indicator, for patients with severe pneumonia.

Anti-fatigue activities of polysaccharides extracted from Hericium erinaceus.

Hericium erinaceus (HEP) is a notable medicinal fungus grown in China and other oriental countries. Polysaccharides from HEP have recently attracted considerable attention due to their numerous physiological activities. The objective of this study was to evaluate the anti-fatigue activity of HEP in a mouse model. After one week of acclimation, mice were randomly divided into four groups: a control group, a low-dose HEP-treated group, a moderate-dose HEP-treated group, and a high-dose HEP-treated group. The treated groups received HEP (50, 100 and 200 mg/kg, ig), while the control group received saline solution. Following treatment for 28 days, the mice performed a forced swimming test until they were exhausted, then the exhaustive swimming time was recorded along with certain biochemical parameters related to fatigue, including blood lactic acid (BLA), serum urea nitrogen (SUN), tissue glycogen, superoxide dismutase (SOD), glutathione peroxidase (GPx) and malondialdehyde (MDA). These results suggested that HEP has significant anti-fatigue activity by decreasing BLA, SUN and MDA content, as well as increasing tissue glycogen content and antioxidant enzyme activity. Based on these results, this study provided theoretical support for the application of HEP in the field of sports nutrition.

Preliminary Research on Anti-fatigue Effect of Tibet Maca in Mice / 中国药师

Objective:To explore the anti-fatigue effect of Tibet maca in mice. Methods: The mice were respectively given the powder or the alcohol extract of Tibet maca. The lactic acid concentration in blood, serum lactate dehydrogenase ( LDH) , the time of weight loading swimming and serum urea ammonia level after the exercise in the mice were detected, and the anti-fatigue effect of the powder and the alcohol extract of Tibet maca was compared. Results: After the 30-day feeding, the serum LDH activity of the mice taking the powder or alcohol extract of Tibet maca was obviously higher than that of the mice in the control group(P<0. 05), the time of weight loading swimming was significantly longer than that in the control group (P<0. 05), and the blood lactic acid concentration after the exercise was obviously lower than that in the control group (P<0. 05). Conclusion: Tibet maca can improve the time of weight loading swimming of mice, and reduce the level of serum urea ammonia after exercise and blood lactic acid concentration, sug-gesting the powder and alcohol extract of Tibet maca have obvious anti-fatigue effect.

Effect of CBP on the level of blood lactic acid and 6 h lactic clearance rate in the patients with severe sepsis / 安徽医科大学学报

Objective To investigate the effect of continuous blood purification ( CBP) on the level of blood lactic acid and 6 h lactic clearance in the patients with severe sepsis. Methods 48 patients with severe sepsis were cho-sen in ICU, and they were randomly divided into two groups: control group ( n=20 ) and CBP group ( n=28 ) . Their arterial blood lactic acid level was tested on admission and was retested 6, 24, 48 and 72 h after treatment. The patients’6 h blood lactic clearance rate and the corresponding APACHEIIscore were calculated. The level of arterial blood lactic acid and the score of APACHE IIwere compared at different time. 6 h blood lactic clearance, the period of stay in ICU and the 28-days mortality were compared too. Results The level of lactic acid and the score of APACHE II after 24 h were lower in CBP group, and the period of stay in ICU was shorter in CBP group than that in control group at different time ( P<0.05 ) . 6 h blood lactic clearance was higher than that in control group (P<0.05). Moreover, the 28-days mortality had no significant difference in CBP group. Conclusion The CBP plays an important role in clearing the blood lactic acid and it can reduce the severity of the sepsis as well as shorten the period of stay in ICU.

The significance of blood lactic acid level and lactic acid clearance in evaluating the prognosis of septic shock / 中国基层医药

Objective To explore the significance of blood lactic acid level and lactic acid clearance in evaluating the prognosis of septic shock.Methods The blood lactic acid concentration of 64 patients with septic shock EICU ICU admission 1h inside,6,12,24 and 48h was recorded,and the lactic acid clearance was calculated 12 hours after treatment,and according to lactic acid clearance of outcome,64 patients were divided into two groups,live group and death group;Then compared blood lactic acid level and lactic acid clearance between the two groups.Results The blood lactic acid concentration of live group and death group when enter the ICU was (7.2 ±5.4)mmol/L,(9.2 ±5.6)mmol/L respectivly,and was higher than normal,and of live group after 6h began to fall,and it reached normal level after 24h [ (2.2 ± 1.3 ) mmol/L ],but of death group after 48 h [ ( 8.0 ± 3.8 ) mmol/L ] was still significantly higher than normal,until death.There was significant difference between the two groups (t =3.7816,3.8257,7.5263,4.5875,5.8765,all P ＜ 0.05 ).The lactic acid clearance of death group after 12 hours was (5.83 ±3.92)mmol/L,and significantly lower than that of live group[ ( 14.32 ±2.68) mmol/L] (t =6.2565,P ＜0.05).Conclusion Blood lactic acid concentration was positively related to the prognosis of patients with septic shock,and dynamic response of disease progression by detecting lactic acid clearance rate could be early,sensitive,quantitative indicators to determine the severity of critical illness.

Blood lactic acid level and APACHE II score on prognosis of critically ill elderly patients / 中华流行病学杂志

Objective To analyze the relevance between blood lactic acid level and acutephysiology and chronic health evaluation Ⅱ (APACHE Ⅱ ) score in order to provide guideline for clinical treatment.Methods Retrospective analyses on 537 critically ill elderly patients who were hospitalized in the ICU with their blood lactic acid level tested and APACHE Ⅱ scores calculated.Results The overall death rate was 35.75％ (192/537) with the APACHE Ⅱ score as (22.6 ± 12.8),and blood lactic acid level as (6.84 ± 2.01 ) mmol/L.The blood lactic acid level among deaths was obviously higher than in the control group,with significant differences (P＜0.05).The level of blood lactic acid was positively related to APACHE Ⅱ score (r=0.572,P＜0.05) while the death rate was both positively related to APACHE Ⅱ score (r=0.475,P＜0.05) and the level of blood lactic acid (r=0.506,P＜0.05).Conclusion There seemed a positive correlation between blood lactic acid level and the APACHE Ⅱscore.Both of them showed good relevancc with thc prognosis of the disease.

Antifatigue and Antioxidant Activity of Alcoholic Extract from Saussurea involucrata.

Fatigue is a noticeable and highly prevalent symptom in tense, industriously, and economically affluent modern society. Therefore, new antifatigue agents to smooth the fatigue feature are an energetic topic. The total ethanol extract (ESI) of Saussurea involucrata Kar et Kir., known as Tian-Shan snow lotus, was evaluated for antifatigue activity in ICR mice with mice forced swimming test and the determination of the contents of blood lactic acid and serum urea nitrogen. ESI (0.05, 0.15, 0.25 g/kg) was administered orally to mice for 4 weeks. The average swimming times to exhaustion of the ESI-treated ICR mice (0.15, 0.25 g/kg) were prolonged by 132% and 180% (p<0.001) with a lessening of fatigue compared with that of the control group. Analysis of biochemical parameters showed that levels of serum urea nitrogen and blood lactic acid of experimental groups were also decreased significantly (p<0.001) compared with that of the control group. The antioxidant activity of ESI was investigated by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical-scavenging assay and the hydrogen peroxide-induced luminol chemiluminescence assay and the results indicated that ESI exerts DPPH scavenging ability and reducing power. These results provide scientific evidence that S. involucrata may have been potential as an antifatigue agent.