Objective:To investigate die ameliorative effect of dietary inclusion of garlic(Allium sativum)on gentamycin-induced hepatotoxicity in rats.Methods:Adult male rats were randomly divided into four groups with sis anima...Objective:To investigate die ameliorative effect of dietary inclusion of garlic(Allium sativum)on gentamycin-induced hepatotoxicity in rats.Methods:Adult male rats were randomly divided into four groups with sis animals in each group.Groups 1 and 2 were fed basal diet while Groups 3 and 4 were fed diets containing 2%and 4%garlic respeetively for 27 d prior to gentamycin administration.Hepatotoxicity was induced by the intraperitoneal administration at gentamycin(100 mg/kg body weight)for 3 d.The liver and plasma were studied for hepatotoxicity and antioxidant indices.Results:Gentamycin induces hepatic damage as revealed by significant(P<0.05)elevation of liver damage marker enzymes(aspartate transaminase and alanine aminotransferase)and reduction in plasma albumin level.Gentamycin also eaused a significant(P<0.05)alteration in plasma and liver enzymatic(catalase,glutathione and super oxygen dehydrogenises)and non-enzymatic(glutathione and vitamin C)antioxidant indices with concomitant increase in the malondialdehyde content;however,there was a significant(P<0.05)restoration of the antioxidant status coupled with significant(P<0.05)decrease in the tissues malondialdehyde content,following consumption of diets containing garlic.Conclusions:These results suggest that dietary inclusion of garlic powder could protect against gentamycin-induced hepatotoxicity,improve antioxidant status and modulate oxidative stress;a function attributed to their phenolic constituents.展开更多
It was demonstrated pathologically that the histological structures of kidneys were impaired after subcutaneous injection of gentamycin for 16 consecutive days in rats. Laboratory parameters showed that serum blood ur...It was demonstrated pathologically that the histological structures of kidneys were impaired after subcutaneous injection of gentamycin for 16 consecutive days in rats. Laboratory parameters showed that serum blood urea nitrogen(BUN) and creatinine (Cr) elevated, while the indices of the erythrogenic line reduced markedly, and erythropoietin (EPO) was not detectable by ELISA. When the rats received recombinant human erythropoietin (rhEPO) for 5 d, the level of EPO in serum went up, and the indices of reticulocyte, red blood cell (RBC),hemoglobin (Hb) and hematocrit (Hct) improved rapidly, of which the response of reticulocyte was most sensitive. The results suggested that the erythrogenic function of the bone marrow in rats was enhanced after the stimulation of rhEPO, and the effect of rhEPO was dose dependent.展开更多
The massive use of antibiotics has led to the aggravation of bacterial resistance and also brought environmental pollution problems.This poses a great threat to human health.If the dosage of antibiotics is reduced by ...The massive use of antibiotics has led to the aggravation of bacterial resistance and also brought environmental pollution problems.This poses a great threat to human health.If the dosage of antibiotics is reduced by increasing its bactericidal performance,the emergence of drug resistance is certainly delayed,so that there's not enough time for developing drug resistance during treatment.Therefore,we selected typical representative materials of metal Ag and semiconductor ZnO nano-bactericides to design and synthesize Ag/ZnO hollow core-shell structures(AZ for short).Antibiotics are grafted on the surface of AZ through rational modification to form a composite sterilization system.The research results show that the antibacterial efficiency of the composite system is significantly increased,from the sum(34.7%+22.8%-57.5%)of the antibacterial efficiency of AZ and gentamicin to 80.2%,net synergizes 22.7%,which fully reflects the effect of 1+1>2.Therefore,the dosage of antibiotics can be drastically reduced in this way,which makes both the possibility of bacterial resistance and medical expenses remarkably decrease.Subsequently,residual antibiotics can be degraded under simple illumination using AZ-self as a photocatalyst,which cuts off the path of environmental pollution.In short,such an innovative route has guiding significance for drug resistance.展开更多
The aim of this paper was to observe the clinical effect of gentamycin combined with sodium bicarbonate for the prevention of irinotecan-induced diarrhea.A total of 98 patients with stage IV cancers were recruited and...The aim of this paper was to observe the clinical effect of gentamycin combined with sodium bicarbonate for the prevention of irinotecan-induced diarrhea.A total of 98 patients with stage IV cancers were recruited and divided into a prevention group(52 patients)and a control group(46 patients).All patients received the chemotherapy including irinotecan.The prevention group received gentamycin and sodium bicarbonate before the use of irinotecan for 4 days;the control group did not receive any prevention.The use of gentamycin and sodium bicarbonate resulted in signifi-cantly higher stool pH(P<0.001),while the incidence of diarrhea by irinotecan was reduced(prevention group 13.70%versus control group 34.83%;P<0.001).Genta-mycin combined with sodium bicarbonate appears to be useful in preventing the diarrhea induced by irinotecan and reducing the dosage of loperamide andfluid replacement.展开更多
Drug absorptive function of the nasal mucosa has been a new and interesting subject of research in bridging rhinology and pharmacology. The authors applied a solution of gentamycin at a concentration of 40 mg/ml to 15...Drug absorptive function of the nasal mucosa has been a new and interesting subject of research in bridging rhinology and pharmacology. The authors applied a solution of gentamycin at a concentration of 40 mg/ml to 15 dogs at a dosage of 5 mg/kg for each through three routes of administration, ie, the intravenous, intramuscular and iutranasal. The serum levels of gentamyciu from 0 to 180 minutes after receiving the drug were determined with thin-layer scanning chromatographic method. It was found that if the bioavailability of the intravenous route was considered as 100%, the bioavailability of the intranasal route was 80.5%,and that of the intramuscular route was 42％. After giving drops of the drug into nasal cavity in above-mentioned dosage,the serum drug level reached a peak in 10 to 30 min ranging in 3.7 to 6.6 μg/ml. The half-life period of the drug given through this route was about three hours, indicating that the na sal mucosa is apt to be penetrated by gentamycin and allows the drug to be abso展开更多
基金Supported by Federal University of Technology,Akure Staff Development Grant No.VCPU/URGC/46
文摘Objective:To investigate die ameliorative effect of dietary inclusion of garlic(Allium sativum)on gentamycin-induced hepatotoxicity in rats.Methods:Adult male rats were randomly divided into four groups with sis animals in each group.Groups 1 and 2 were fed basal diet while Groups 3 and 4 were fed diets containing 2%and 4%garlic respeetively for 27 d prior to gentamycin administration.Hepatotoxicity was induced by the intraperitoneal administration at gentamycin(100 mg/kg body weight)for 3 d.The liver and plasma were studied for hepatotoxicity and antioxidant indices.Results:Gentamycin induces hepatic damage as revealed by significant(P<0.05)elevation of liver damage marker enzymes(aspartate transaminase and alanine aminotransferase)and reduction in plasma albumin level.Gentamycin also eaused a significant(P<0.05)alteration in plasma and liver enzymatic(catalase,glutathione and super oxygen dehydrogenises)and non-enzymatic(glutathione and vitamin C)antioxidant indices with concomitant increase in the malondialdehyde content;however,there was a significant(P<0.05)restoration of the antioxidant status coupled with significant(P<0.05)decrease in the tissues malondialdehyde content,following consumption of diets containing garlic.Conclusions:These results suggest that dietary inclusion of garlic powder could protect against gentamycin-induced hepatotoxicity,improve antioxidant status and modulate oxidative stress;a function attributed to their phenolic constituents.
文摘It was demonstrated pathologically that the histological structures of kidneys were impaired after subcutaneous injection of gentamycin for 16 consecutive days in rats. Laboratory parameters showed that serum blood urea nitrogen(BUN) and creatinine (Cr) elevated, while the indices of the erythrogenic line reduced markedly, and erythropoietin (EPO) was not detectable by ELISA. When the rats received recombinant human erythropoietin (rhEPO) for 5 d, the level of EPO in serum went up, and the indices of reticulocyte, red blood cell (RBC),hemoglobin (Hb) and hematocrit (Hct) improved rapidly, of which the response of reticulocyte was most sensitive. The results suggested that the erythrogenic function of the bone marrow in rats was enhanced after the stimulation of rhEPO, and the effect of rhEPO was dose dependent.
基金supported by the National Natural Science Foundation of China(Nos.22176145,82172612)the State Key Laboratory of Fine Chemicals,Dalian University of Technology(KF 2001)the Fundamental Research Funds for the Central Universities(22120210137).
文摘The massive use of antibiotics has led to the aggravation of bacterial resistance and also brought environmental pollution problems.This poses a great threat to human health.If the dosage of antibiotics is reduced by increasing its bactericidal performance,the emergence of drug resistance is certainly delayed,so that there's not enough time for developing drug resistance during treatment.Therefore,we selected typical representative materials of metal Ag and semiconductor ZnO nano-bactericides to design and synthesize Ag/ZnO hollow core-shell structures(AZ for short).Antibiotics are grafted on the surface of AZ through rational modification to form a composite sterilization system.The research results show that the antibacterial efficiency of the composite system is significantly increased,from the sum(34.7%+22.8%-57.5%)of the antibacterial efficiency of AZ and gentamicin to 80.2%,net synergizes 22.7%,which fully reflects the effect of 1+1>2.Therefore,the dosage of antibiotics can be drastically reduced in this way,which makes both the possibility of bacterial resistance and medical expenses remarkably decrease.Subsequently,residual antibiotics can be degraded under simple illumination using AZ-self as a photocatalyst,which cuts off the path of environmental pollution.In short,such an innovative route has guiding significance for drug resistance.
文摘The aim of this paper was to observe the clinical effect of gentamycin combined with sodium bicarbonate for the prevention of irinotecan-induced diarrhea.A total of 98 patients with stage IV cancers were recruited and divided into a prevention group(52 patients)and a control group(46 patients).All patients received the chemotherapy including irinotecan.The prevention group received gentamycin and sodium bicarbonate before the use of irinotecan for 4 days;the control group did not receive any prevention.The use of gentamycin and sodium bicarbonate resulted in signifi-cantly higher stool pH(P<0.001),while the incidence of diarrhea by irinotecan was reduced(prevention group 13.70%versus control group 34.83%;P<0.001).Genta-mycin combined with sodium bicarbonate appears to be useful in preventing the diarrhea induced by irinotecan and reducing the dosage of loperamide andfluid replacement.
文摘Drug absorptive function of the nasal mucosa has been a new and interesting subject of research in bridging rhinology and pharmacology. The authors applied a solution of gentamycin at a concentration of 40 mg/ml to 15 dogs at a dosage of 5 mg/kg for each through three routes of administration, ie, the intravenous, intramuscular and iutranasal. The serum levels of gentamyciu from 0 to 180 minutes after receiving the drug were determined with thin-layer scanning chromatographic method. It was found that if the bioavailability of the intravenous route was considered as 100%, the bioavailability of the intranasal route was 80.5%,and that of the intramuscular route was 42％. After giving drops of the drug into nasal cavity in above-mentioned dosage,the serum drug level reached a peak in 10 to 30 min ranging in 3.7 to 6.6 μg/ml. The half-life period of the drug given through this route was about three hours, indicating that the na sal mucosa is apt to be penetrated by gentamycin and allows the drug to be abso
