Although high-dose methotrexate(HD-MTX)is the most effective drug against primary CNS lymphomas(PCNSL),outcome-de-termining variables related to its administration schedule have not been defined.The impact on toxicity...Although high-dose methotrexate(HD-MTX)is the most effective drug against primary CNS lymphomas(PCNSL),outcome-de-termining variables related to its administration schedule have not been defined.The impact on toxicity and outcome of the area under thecurve(AUC(MTX)),dose intensity(DI(MTX))and infusion rate(IR(MTX))of MTX and plsamatic creatinine clearance(CL(crea))was investigated in a retrospective series of 45 PCNSL patients treated with three different HD-MTX-basedcombinations.Anticon-vulsants were administered in 31 pts(69%).Age>60 years,anticonvulsant therapy,slow IR(MTX)(</=800 mgm(-2)h(-1)),and reduced DI(MTX)(</=1000 mgm(-2)wk(-1))were significantly correlated with low AUC(MTX)values.Seven pa-展开更多
We evaluated the antimutagenic effects kinds of bioactive phytochemicals and of 10 some phytochemical combinations against methotrexate （MTX）-induced genotoxicity by the umu test in Salmonella typhimurium TA1535/rpS...We evaluated the antimutagenic effects kinds of bioactive phytochemicals and of 10 some phytochemical combinations against methotrexate （MTX）-induced genotoxicity by the umu test in Salmonella typhimurium TA1535/rpSK1002 combined with a micronucleus assay. We observed that allicin, proanthocyanidins, polyphenols, eleutherosides, and isoflavones had higher antimutagenic activities than the other five types of bioactive phytochemicals. At the highest dose tested, MTX-induced genotoxicity was inhibited by 25%-75%. Kunming mice treated by MTX along with bioactive phytochemical combinations showed significant reduction in micronucleus induction and sperm abnormality rate （P〈0.01）. These results indicate that bioactive phytochemical combinations can be potentially used as new cytoprotectors.展开更多
An ectopic pregnancy (EP) is defined as any pregnancy that occurs outside the uterine cavity. The most common site of ectopic pregnancy is the fallopian tube. The goal of this retrospective study is to address medical...An ectopic pregnancy (EP) is defined as any pregnancy that occurs outside the uterine cavity. The most common site of ectopic pregnancy is the fallopian tube. The goal of this retrospective study is to address medical and conservative surgical management of unruptured fallopian tube EP as an effective manner to preserve tubes to prevent secondary infertility. This study was conducted between January 1, 2010, and April 30, 2024, in Ponni Hospital, Madurai. It included 319 women, out of 6248 pregnant women diagnosed with ectopic pregnancy by using an Inexecreen kit, trans-abdominal scan, trans-vaginal scan, and doubling of beta-human chorionic gonadotropin (β-HCG) in 48 hours and Magnetic Resonance Imaging (MRI). Medical and conservative surgical management were given to those patients effectively. Out of 319 patients, 62 patients (19.4%) had a ruptured ectopic pregnancy and underwent surgical treatment;257 patients (80.6%) had an unruptured ectopic pregnancy. The conservative medical management was provided to 257 patients. Out of 257 patients, 235 patients were treated by injecting methotrexate and folic acid rescue when the criteria were met. 14 patients had salpingostomy and injection methotrexate (Inj. Methotrexate) and inj. Prostaglandin F2 alpha was administered into the tubal wall to preserve tubes. 8 patients had a live ectopic pregnancy;for those patients, Inj. Methotrexate was injected into the gestational sac through ultrasound guidance. 225 out of 257 patients reached out to us to seek fertility treatment;the remaining 32 patients were not seeking fertility. All fertility-seeking patients had successful pregnancies. We lost follow-up of 12 patients in this study. Out of 213 patients who came for fertility treatment, a 76.1% success rate was achieved with live birth, the recurrent ectopic pregnancy rate was 13.6%, the miscarriage and stillbirth rates were 10.3%. 32 patients, who were not seeking fertility, had quality life without surgical scars for ectopic pregnancy and cost-effective treatment. 25 patients out of 32 had laparoscopic sterilization later, and 7 patients followed temporary contraception as per our advice. This clinical data was retrieved from medical records.展开更多
Objective:The aim of this study was to study the effect of Bcl-2 small hairpin RNA(shRNA) enhancing methotrexate(MTX)-induced apoptosis of Raji cells.Methods:Expression plasmid with Bcl-2 shRNA was transfected into Ra...Objective:The aim of this study was to study the effect of Bcl-2 small hairpin RNA(shRNA) enhancing methotrexate(MTX)-induced apoptosis of Raji cells.Methods:Expression plasmid with Bcl-2 shRNA was transfected into Raji cells by Lipofectmine 2000 and then treated with MTX.At 48 h of transfection,the expression level of Bcl-2 mRNA and protein was evaluated by RT-PCR and immunofluorescence.MTT assay was used to analyze cell proliferation at 24,48 and 72 h.Apoptosis was detected by Giemsa staining and flow cytometric cell cycle analysis.Results:After transfection with Bcl-2 shRNA,the expression levels of Bcl-2 mRNA and protein in Raji cells decreased(P < 0.05).Using Giemsa staining,cells transfected with Bcl-2 shRNA combined with MTX at 48 h displayed changes of apoptosis.MTX significantly inhibited the growth of cells after transfected with Bcl-2 shRNA(P < 0.05).Apoptotic rates of the Raji cells treated with Bcl-2 shRNA combined with MTX significantly increased(P < 0.05),compared with either control shRNA/MTX combination or MTX-treatment cells alone.Conclusion:Our results suggest the shRNA against Bcl-2 mRNA could increase MTX-induced apoptosis of Raji cells.展开更多
文摘Although high-dose methotrexate(HD-MTX)is the most effective drug against primary CNS lymphomas(PCNSL),outcome-de-termining variables related to its administration schedule have not been defined.The impact on toxicity and outcome of the area under thecurve(AUC(MTX)),dose intensity(DI(MTX))and infusion rate(IR(MTX))of MTX and plsamatic creatinine clearance(CL(crea))was investigated in a retrospective series of 45 PCNSL patients treated with three different HD-MTX-basedcombinations.Anticon-vulsants were administered in 31 pts(69%).Age>60 years,anticonvulsant therapy,slow IR(MTX)(</=800 mgm(-2)h(-1)),and reduced DI(MTX)(</=1000 mgm(-2)wk(-1))were significantly correlated with low AUC(MTX)values.Seven pa-
基金supported by the National Natural Science Foundation of China(Grant No.U1304307)the Young Core Instructor Foundation from the Education Commission of Henan Province,China(Grant No.2014GGJS-056)
文摘We evaluated the antimutagenic effects kinds of bioactive phytochemicals and of 10 some phytochemical combinations against methotrexate （MTX）-induced genotoxicity by the umu test in Salmonella typhimurium TA1535/rpSK1002 combined with a micronucleus assay. We observed that allicin, proanthocyanidins, polyphenols, eleutherosides, and isoflavones had higher antimutagenic activities than the other five types of bioactive phytochemicals. At the highest dose tested, MTX-induced genotoxicity was inhibited by 25%-75%. Kunming mice treated by MTX along with bioactive phytochemical combinations showed significant reduction in micronucleus induction and sperm abnormality rate （P〈0.01）. These results indicate that bioactive phytochemical combinations can be potentially used as new cytoprotectors.
文摘An ectopic pregnancy (EP) is defined as any pregnancy that occurs outside the uterine cavity. The most common site of ectopic pregnancy is the fallopian tube. The goal of this retrospective study is to address medical and conservative surgical management of unruptured fallopian tube EP as an effective manner to preserve tubes to prevent secondary infertility. This study was conducted between January 1, 2010, and April 30, 2024, in Ponni Hospital, Madurai. It included 319 women, out of 6248 pregnant women diagnosed with ectopic pregnancy by using an Inexecreen kit, trans-abdominal scan, trans-vaginal scan, and doubling of beta-human chorionic gonadotropin (β-HCG) in 48 hours and Magnetic Resonance Imaging (MRI). Medical and conservative surgical management were given to those patients effectively. Out of 319 patients, 62 patients (19.4%) had a ruptured ectopic pregnancy and underwent surgical treatment;257 patients (80.6%) had an unruptured ectopic pregnancy. The conservative medical management was provided to 257 patients. Out of 257 patients, 235 patients were treated by injecting methotrexate and folic acid rescue when the criteria were met. 14 patients had salpingostomy and injection methotrexate (Inj. Methotrexate) and inj. Prostaglandin F2 alpha was administered into the tubal wall to preserve tubes. 8 patients had a live ectopic pregnancy;for those patients, Inj. Methotrexate was injected into the gestational sac through ultrasound guidance. 225 out of 257 patients reached out to us to seek fertility treatment;the remaining 32 patients were not seeking fertility. All fertility-seeking patients had successful pregnancies. We lost follow-up of 12 patients in this study. Out of 213 patients who came for fertility treatment, a 76.1% success rate was achieved with live birth, the recurrent ectopic pregnancy rate was 13.6%, the miscarriage and stillbirth rates were 10.3%. 32 patients, who were not seeking fertility, had quality life without surgical scars for ectopic pregnancy and cost-effective treatment. 25 patients out of 32 had laparoscopic sterilization later, and 7 patients followed temporary contraception as per our advice. This clinical data was retrieved from medical records.
基金Supported by the grants from the Natural Science Program Foundation of Guangdong Province(No.04010446)the Overseas Chinese Affairs Office of the State Council Key Discipline Construction Fund (No.51205002)
文摘Objective:The aim of this study was to study the effect of Bcl-2 small hairpin RNA(shRNA) enhancing methotrexate(MTX)-induced apoptosis of Raji cells.Methods:Expression plasmid with Bcl-2 shRNA was transfected into Raji cells by Lipofectmine 2000 and then treated with MTX.At 48 h of transfection,the expression level of Bcl-2 mRNA and protein was evaluated by RT-PCR and immunofluorescence.MTT assay was used to analyze cell proliferation at 24,48 and 72 h.Apoptosis was detected by Giemsa staining and flow cytometric cell cycle analysis.Results:After transfection with Bcl-2 shRNA,the expression levels of Bcl-2 mRNA and protein in Raji cells decreased(P < 0.05).Using Giemsa staining,cells transfected with Bcl-2 shRNA combined with MTX at 48 h displayed changes of apoptosis.MTX significantly inhibited the growth of cells after transfected with Bcl-2 shRNA(P < 0.05).Apoptotic rates of the Raji cells treated with Bcl-2 shRNA combined with MTX significantly increased(P < 0.05),compared with either control shRNA/MTX combination or MTX-treatment cells alone.Conclusion:Our results suggest the shRNA against Bcl-2 mRNA could increase MTX-induced apoptosis of Raji cells.
