Intervention effect and mechanism of curcumin in chronic urinary tract infection in rats

Objective To analyze the invention effect of curcumin on chronic urinary tract infection in rats and explore its possible mechanism of action. Methods The experimental animals were randomly divided into three groups, normal, model and curcumin group. Chronic urinary tract infection models were built for model group and curcumin group by injecting coliform fluid into the cavity of bladder. From the first day of modeling, rats in the curcumin group were injected with 150 mg/kg curcumin, while rats in normal group and model group were given no other treatment. The treatment lasted for 14 d. The white blood cell counts in blood and urine, bacterial colony count in urine and renal tubular functional indexes of rats in all groups at day 1, 7, and 14 after treatment were detected. Urine β2-microglobulin (β2-MG), urinary N-acetyl-β-D glucosaminidase (NAG) levels were used to detected the inflammatory cytokines in serum after treatment including the contents of IL-6, IL-8, IL-10 and monocyte chemoattractant protein-1 (MCP-1), and real-time PCR was employed to determine the expression of mRNA of toll-like receptor 2 (TLR-2) and TLR-4 in renal tissues and bladder tissues of all groups after treatment. Results The white blood cell counts at day 1 and 7 after treatment in rats of model group and curcumin group were significantly higher than those of normal group at the same time points, while the white blood cell counts of the curcumin group were significantly lower than those of model group (P < 0.05). The urine white blood cell counts in rats of model group at day 1, 7 and 14 were all significantly higher than those of normal group at the same time points; those in the curcumin group were significantly lower than those of the model group at day 1, 7 and 14 at the same time points (P < 0.05). The bacterial colony counts of urine in rats of model group and curcumin group at day 1, 7 and 14 were all significantly higher than those of normal group at the same time points, while the counts of curcumin group were significantly lower than those of model group at the same time points (P < 0.05). Levels of urine β2-MG, NAG, IL-6, IL-8, IL-10, MCP-1 and expression of TLR2 mRNA and TLR4 mRNA in renal and bladder tissues in rats of model group were significantly higher than those of the normal group, while these variables of the curcumin group were significantly higher than those of the normal group but lower than those of model group (P < 0.05). Conclusions Curcumin can significantly improve the symptoms of chronic urinary tract infections, protect renal tubular function, and also decline inflammatory responses by influencing the expressions of TLR2 mRNA and TLR4 mRNA so as to exert its curative effect on chronic urinary tract infections.

Intervention effect and mechanism of curcumin in chronic urinary tract infection in rats

OBJECTIVE@#To analyze the invention effect of curcumin on chronic urinary tract infection in rats and explore its possible mechanism of action.@*METHODS@#The experimental animals were randomly divided into three groups, normal, model and curcumin group. Chronic urinary tract infection models were built for model group and curcumin group by injecting coliform fluid into the cavity of bladder. From the first day of modeling, rats in the curcumin group were injected with 150 mg/kg curcumin, while rats in normal group and model group were given no other treatment. The treatment lasted for 14 d. The white blood cell counts in blood and urine, bacterial colony count in urine and renal tubular functional indexes of rats in all groups at day 1, 7, and 14 after treatment were detected. Urine β2-microglobulin (β2-MG), urinary N-acetyl-β-D glucosaminidase (NAG) levels were used to detected the inflammatory cytokines in serum after treatment including the contents of IL-6, IL-8, IL-10 and monocyte chemoattractant protein-1 (MCP-1), and real-time PCR was employed to determine the expression of mRNA of toll-like receptor 2 (TLR-2) and TLR-4 in renal tissues and bladder tissues of all groups after treatment.@*RESULTS@#The white blood cell counts at day 1 and 7 after treatment in rats of model group and curcumin group were significantly higher than those of normal group at the same time points, while the white blood cell counts of the curcumin group were significantly lower than those of model group (P < 0.05). The urine white blood cell counts in rats of model group at day 1, 7 and 14 were all significantly higher than those of normal group at the same time points; those in the curcumin group were significantly lower than those of the model group at day 1, 7 and 14 at the same time points (P < 0.05). The bacterial colony counts of urine in rats of model group and curcumin group at day 1, 7 and 14 were all significantly higher than those of normal group at the same time points, while the counts of curcumin group were significantly lower than those of model group at the same time points (P < 0.05). Levels of urine β2-MG, NAG, IL-6, IL-8, IL-10, MCP-1 and expression of TLR2 mRNA and TLR4 mRNA in renal and bladder tissues in rats of model group were significantly higher than those of the normal group, while these variables of the curcumin group were significantly higher than those of the normal group but lower than those of model group (P < 0.05).@*CONCLUSIONS@#Curcumin can significantly improve the symptoms of chronic urinary tract infections, protect renal tubular function, and also decline inflammatory responses by influencing the expressions of TLR2 mRNA and TLR4 mRNA so as to exert its curative effect on chronic urinary tract infections.

Transumbilical single-port laparoscopy combined with improved double hernia needles for pediatric hydrocele / 中华男科学杂志

<p><b>Objective</b>To compare the clinical effect of transumbilical single-port laparoscopy combined with improved double hernia needles with that of traditional open surgery in the treatment of hydrocele in children.</p><p><b>METHODS</b>We retrospectively analyzed 35 cases (54 sides) of pediatric hydrocele treated by transumbilical single-port laparoscopy combined with improved double hernia needles (laparoscopy group). We recorded the operation time, intraoperative blood loss, hospital stay, scrotal edema, and postoperative complications and compared them with those of another 46 cases (58 sides) treated by traditional open surgery (open surgery group) during the same period.</p><p><b>RESULTS</b>The laparoscopy group showed a significantly shorter operation time, less intraoperative blood loss, milder scrotal edema, and fewer hospital days than the open surgery group (all P<0.05). However, no statistically significant difference was found in the incidence of postoperative complications between the two groups (P>0.05). Subcutaneous emphysema developed in 2 patients in the laparoscopy group, which disappeared after 1－3 days of oxygen inhalation and other symptomatic treatment, while scrotal hematoma occurred in 1 and incision fat liquefaction in 2 patients in the open surgery group 3 days postoperatively, which healed after debridement suture and daily dressing, respectively. The patients were followed up for 3－6 months, which revealed no late complications in the laparoscopy group but 1 case of unilateral recurrence and 2 cases of offside recurrence in the open surgery group, all cured by laparoscopic internal ring ligation.</p><p><b>CONCLUSIONS</b>Transumbilical single-port laparoscopy combined with improved double hernia needles is superior to traditional open surgery for the treatment of pediatric hydrocele and therefore deserves clinical generalization.</p>

The animal research of recombinant adenovirus controlled by human telomerase reverse transcriptase promoter in the treatment of human prostate cancer / 中华外科杂志

<p><b>OBJECTIVE</b>To approach the treatment efficiency of replication defective adenovirus carrying HSV-tk gene under control of the human telomerase reverse transcriptase (hTERT) promoter in a mouse xenografts model of prostate cancer.</p><p><b>METHODS</b>It was erected that the model of human prostate cancer in BALB/C nude mouse followed by locally injecting Ad-hTERT-HSV-tk and peritoneal injection of GCV. The anti-tumor efficacy was evaluated by index of tumor volume, tumor weight, relative tumor curative, and tumor growth curve. Afterwards, the TUNEL and transmission electron microscope to overview apoptosis of tumor cells were used. Finally, immunohistochemistry for detecting PCNA of tumor cells were applied.</p><p><b>RESULTS</b>Compared with the control group, all viruses treatment groups demonstrated tumor growth inhibition. Among 3 treatment groups, antitumoral effect of Ad-hTERT-HSV-tk/GCV was much stronger than other two groups (P < 0.05). Obvious necrosis and apoptosis was observed by TUNEL, and PCNA was detected by immunohistochemistry in tumor tissues in all viruses treatment group.</p><p><b>CONCLUSIONS</b>Ad-hTERT-HSV-tk/GCV system is highly efficacious to inhabit the growth of human prostate cancer.</p>