OBJECTIVE: To study the assessed value of 64 slice spiral CT perfusion imaging (CTPI) in laryngeal squamous cell carcinoma after chemotherapy and radiotherapy. METHOD: Forty five patients diagnosed with local advanced laryngeal squamous cell carcinoma were selected. Conventional CT and CTPI were performed before treatment and at the time of radiation dose up to 40 Gy. Blood flow, blood volume, mean transit time and surface permeability were measured at the same time. According to the decrease of tumor volume in final examination, patients were divided into sensitive group and insensitive group. The tumor perfusion indexes were compared between groups. RESULT: Blood flow, blood volume, surface permeability after 40Gy treatment were lower than before treatment in both sensitive group and the insensitive group ascended(P<0. 05). The AUC of ROC of blood flow, blood volume, mean transit time and surface permeability were 0. 804, 0. 843, 0. 852 and 0. 826. The sensitivity, specificity and accuracy of blood flow was 89. 7%, 86.8% and 90. 9%. There were 100. 0%, 91. 4% and 93. 7% in blood volume; 100. 0%, 67. 7% and 88. 3% in mean transit time; 91. 2%, 69. 4% and 90. 6% in surface permeability(P<0. 01). CONCLUSION Sixty-four slice spiral CT perfusion imaging is able to assess tumor status of laryngeal squamous cell carcinoma after chemotherapy and radiotherapy effectively.
Carcinoma, Squamous Cell ; diagnosis ; drug therapy ; radiotherapy ; Head and Neck Neoplasms ; diagnosis ; drug therapy ; radiotherapy ; Humans ; Laryngeal Neoplasms ; diagnosis ; drug therapy ; radiotherapy ; Perfusion Imaging ; Sensitivity and Specificity ; Squamous Cell Carcinoma of Head and Neck ; Tomography, Spiral Computed ; Tumor Burden

OBJECTIVETo observe the intervention of Maiwei Dihuang Oral Liquid (MDOL) on hormonotherapy in treating active systemic lupus erythematosus (SLE).

METHODSSixty SLE patients in active stage were randomly and equally allocated into two groups, and administered with prednisone, which was medicated in initial dose of 0.5-1 mg/kg, and with the dose being reduced conditionally 6-8 weeks. To the 30 patients in the treated group 10 ml MDOL twice daily was given additionally. The therapeutic course was 3 months.

RESULTSThe therapeutic effect in the treated group was better than that in the control group (P < 0.05). Systemic lupus erythematosus disease activity index (SLEDAI) was significantly improved in both groups (P < 0.01), but was superior in the treated group (P < 0.05). The dose of prednisone used was significantly reduced (P < 0.01), and the scores of Yin-deficiency fire-flourishing syndrome were obviously decreased (P < 0.01) in the treated group while in the control group, these indexes were unchanged (P > 0.05), the difference between the two groups was significant (P < 0.01). The occurrence of adverse reaction was significantly lower in the treated group than that in the control group (P < 0.05).

CONCLUSIONMDOL can obviously improve the effect of hormonotherapy in SLE, it has advantages in reducing the dosage used and antagonizing the adverse reactions of glucocorticoid.

Adolescent ; Adult ; Drug Administration Schedule ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Lupus Erythematosus, Systemic ; drug therapy ; Male ; Middle Aged ; Phytotherapy ; Prednisone ; administration & dosage ; adverse effects ; Yin Deficiency ; chemically induced ; drug therapy

Objective To investigate the role of chemokine ligand 2 (CCL2) in the spinal cord expression in a rat model of tibia bone cancer pain.Methods Eighty-four female SD rats weighing 160-180 g were randomly divided into 3 groups ( n =28):control group (group C),sham operation group (group S) and tibia bone cancer pain group (group P).Tibia bone cancer pain was induced by intra-tibial inoculation of Walker-256 breast cancer cells.Paw withdral threshold to mechanical stimulation (MWT) was measured with von Frey filaments at 1 d before and at 1,3,7,10,14 and 21 d after inoculation.Six rats in each group were sacrificed after the measurement of MWT at 1 d before inoculation and at 7,14 and 21 d after inoculation.Lumbar 4-6 segments of the spinal cord were removed for determination of the expression of CCL2 by ELISA.The coexpression of CCL2 with Iba-1 (a specific marker of microglia),GFAP(a specific marker of astrocyte) and NeuN (a specific marker of neuron) was determined by double immunofluorescence assay after the measurement of MWT at 14 d after inoculation in group P.Results Compared with groups C and S,MWT was significantly decreased from 7 d to 21 d after inoculation,the expressive of CCI-2 in the spinal cord up-regulated at 7,14 and 21 d after inoculation in group P ( P ＜ 0.05).CCL2 was expressed in the microglia and astrocyte but not in neuron in the spinal cord dorsal horn in a rat model of tibia bone cancer pain.Conclusion Release of CCL2 from microglia and astrocytes in the spinal cord was involved in mechanical hyperalgesia in a rat model of tibia bone cancer pain.

Objective To investigate the role and potential mechanism of interleukin-17A (IL-17A) in the inflammatory response to traumatic brain injury (TBI) in rats.Methods The adult male Wistar rats were randomly (random number) divided into seven groups:control group (n =6),sham operation group (n =6),TBI group (n =24),sham operation + normal saline group (n =6),sham operation + Y320 (an immunomodulator acts as an inhibitor of IL-17A) group (n =6),TBI + normal saline group (n =6) and TBI + Y320 group (n =6).The TBI model of rat was established by using free-falling-body impact device.The levels of IL-17A and nuclear transcription factor kappa B p65 (NF-κB p65) in the cerebral cortex were assayed by using Western Blot.The capability of leaming and memory of rats was assessed by Morris water maze.The beam balance test was employed to evaluating the neurological motor performance and the capability of balance.Results Compared with the sham operation group,the levels of IL-17A and NF-κB p65 in the cerebral cortex of TBI,TBI + saline and TBI + Y320 groups increased significantly (P ＜0.05) and peaked at the 3rd day after TBI.Compared with TBI + normal saline group,the level of NF-κB p65 was significantly down regulated by Y-320 (P ＜ 0.05) at the 3rd day after TBI in TBI + Y320 group.The lengths of latency time required for rats to escape to the platform area in TBI + normal saline group were (57.72±3.29) s,(55.63±3.85) s,and (55.02±3.92) sat the3rd,5th and7th days after TBI,respectively;while those in TBI + Y320 group were (35.45 ± 3.04) s,(30.98 ± 2.92) s,and (23.90 ±2.51) s at the 3rd,5th and 7th days after TBI,respectively.Thus,the capability of learning and memory of rats in TBI + Y320 group was improved significantly 3d,5d and 7 days after TBI (all P ＜ 0.01).Conclusions This study shows IL-17A is involved in the process of secondary brain injury after TBI,and associated with inflammation by activating the NF-κB p65 signaling pathway.

Objective To synthesize antimicrobial bioceramic using chitosan and calcium phosphate cements mixed with ceftriaxone sodium. Methods The bioceramic was synthesized through the hardening of chitosan liquid combined with calcium phosphate cements and cefiriaxone sodium.The released ceftriaxone sodium was studied according to the linear equation between UV-VIS absorbance to concentration.The in vitro bactefiostatic effect of the chosen bioceramic was investigated via the microbiological method.The model of rats'contaminated bone defect were deployed to study the antimicrobial performance of the bioceramic. Results The best synthesis condition was chosen at:0.1g calcium phosphate cements and 10.4 mg ceftriaxone sodium combined with 2.4 ml hardening liquid C.then keeping the mixture at 60℃ and 100%humidity for 24 h.In vitro release of the resulting antimicrobial bioceramic remained stable,while that of ceftriaxone sodium lasted for a week,higher than the minimal inhibitory concentration(MIC) of Staphylococcus aureus.As proved by the WBC number and tissue sectioning,a lighter inflammatory response of treatment group was observed as compared with the control group. Conclusion The antimicrobial bioceramic combined with chitosan and ceftriaxone sodium shows promising antimicrobial performance.

OBJECTIVETo study the effect of nano-liposome sustained elemene in inducing cell apoptosis of C6 glioma and to explore its influence on the expression of caspase-3 gene.

METHODSC6 glioma cells were cultured in medium with the same amount of nano-liposome sustained elemene and common elemene respectively, also in blank medium for control. The status of cell apoptosis was determined by flow cytometry at 0, 48 h and 72 h, and the expression of Caspase-3 protein was measured simultaneously by immunohistochemistry assay.

RESULTSMarked apoptosis presented in cells cultured in the medium with nano-liposome sustained elemene or common elemene at 48 h and 72 h, with the apoptotic rate significantly higher than that in the control. At the same time, Caspase-3 protein expression raised significantly in cells cultured in medium with either kinds of elemene, showing significant difference when compared with that in the control.

CONCLUSIONElemene has significant apoptosis promoting and Caspase-3 protein expression inducing effect on C6 glioma cells, which could be facilitated by nano-liposome bearing.

Apoptosis ; drug effects ; Caspase 3 ; genetics ; metabolism ; Cell Line, Tumor ; Gene Expression ; drug effects ; Glioma ; drug therapy ; enzymology ; genetics ; physiopathology ; Humans ; Liposomes ; Nanoparticles ; Plant Extracts ; pharmacology ; Sesquiterpenes ; pharmacology

Objective To introduce a novel technique of intracolonic shunt procedure used in the anus - preserving operation for acute intestinal obstruction resulted from cancer at low and middle portions of rectum and assess the clinical significance. Methods In total, 81 patients with acute obstruction of low and middle portion of rectum caused by cancer were randomly ( random number) divided into control group and study group. In control group, 42 patients were operated with preventive transverse colonostomy or terminal ileum stoma after low proximal resection of rectum involved in cancer, while 39 patients were operated with intracolonic shunt procedure by using a biodegradable anastomosis ring and a condom placed 5 cm above anastomosis for protection in study group. Results There were no significant differences in sex, age, tumor site, tumor size and the distance from anstomosis to anal-edge between two groups. In both groups, the bowel movement resumed in 2 ~ 5 days after operation (P > 0.05). In study group, the rate of anastomosis leakage was 7.7% (3/39), and leakages were treated with drainage for 7.1 days in average to be healed, and the biodegradable anastomosis ring detached and were discharged in 14 -23 days (17 days in average), and there were no complications of drainage happened. The anastomotic stenosis occurred in three patients (7. 7% ) within 6 months after operation. In control group, 11.9% patients (5/42) had anastomosis leakage and they treated with drainage for 18.2 days in average to get the leakage healed, and 35. 7% patients (15/42) had stoma complications, and anastomotic stenosis happened in 28.6% patients (12/42) within 6 months after operation, and 7. 1% patients need another operation because of severe anastomosis stenosis. There were no significant differences in rate of anastomosis leakage between tow groups ( P > 0. 05), but there were significant differences in drainage days after anstomosis leakage happened and 6 - months anastomosis stenosis between two groups (P<0.05). Conclusions In the anus -preserving operation for acute intestinal obstruction at low and middle portions of rectum caused by cancer , the intracolonic shunt procedure is convenient and safty, and reduces the hazard incurred by anastomosis leakage and anastomosis stenosis compared with classic stoma operation.

Objective To study the clinical effect of Longniu Bubi Granule on prevention and treatment of bone loss caused by premenopausal ovarian function suppression (OFS) combined with breast cancer aromatase inhibitor (AIs).Methods Forty patients with postmenopausal and high risk of breast cancer treated with OFS combined with aromatase inhibitors were divided into treatment group (n=23) and control group (n=17).The two groups were treated with calcium VitD3125IU,1 tablet per day.The treatment group received the additional of Longniu Bugu Decoction,2 doses daily,with continuous medication for 6 months.The bone mineral density (BMD) level,bone mineral density (T) and serum bone alkaline phosphatase (BALP) were measured before and 6 months after treatment.Results There were significant differences in lumbar (L2-4) and femoral neck bone mineral density,bone mineral density (T) and serum bone alkaline phosphatase (P＜0.05) between the two groups after treatment,and the treatment group was superior to the control group.Conclusion Longniu Bugu Decoction can reduce bone loss in patients with premenopausal breast cancer caused by OFS combined with AIs therapy and improve patients' life quality.

OBJECTIVETo study the effects of brucea javanica oil on the expression of vascular endothelial growth factor (VEGF) in A549 cell line.

METHODA549 cells were incubated with different concentrations of brucea javanica oil (0.5, 1.25, 2.5, 5 g x L(-1) for 48 h respectively. VEGF level in supernatant was determined by VEGF ELISA kits and mRNA expression of VEGF was evaluated by RT-PCR. PMN in health volunteers was treated as control groups.

RESULTSupernatant VEGF protein and mRNA expression were significantly elevated in A549 cells compared with the mononuclear cells (120.73 vs 21.21, P < 0.05). Brucea javanica oil (2.5 g x L(-1)) could reduced supernatant VEGF protein in A549 cells (20.30 vs 120.73, P < 0.05), but had no effect on the expression of VEGF mRNA (1.0230 vs 0.9573). It was found that brucea javanica oil (5 g x L(-1)) significantly reduced VEGF mRNA expression (0.4682 vs 0.9573, P < 0.05).

CONCLUSIONBrucea javanica oil can depress the VEGF mRNA expression and secretion in A549 cells, which may be one of the mechanisms of its antitumor effect.

Brucea ; chemistry ; Cell Line, Tumor ; Drugs, Chinese Herbal ; pharmacology ; Enzyme-Linked Immunosorbent Assay ; Gene Expression Regulation ; drug effects ; Humans ; Plant Oils ; pharmacology ; Reverse Transcriptase Polymerase Chain Reaction ; Vascular Endothelial Growth Factor A ; genetics ; metabolism

It was a retrospective cohort study. Patients diagnosed with idiopathic membranous nephropathy (IMN) and received rituximab (RTX) alone for one course of treatment during hospitalization in the Department of Nephrology of the First Hospital of Jilin University from March 2020 to March 2022 were enrolled. The patients were divided into 1 g standard treatment group (once 1 g every 2 weeks for twice) and 375 mg/m 2 experimental treatment group (375 mg/m 2 once a week for 4 weeks) according to the different methods of drug administration, and the efficacy and safety of different doses of RTX in the treatment of IMN were compared between the two groups to provide a reference for optimizing the clinical treatment protocol. The patients were followed up regularly for more than 9 months after treatment and the data were complete. A total of 69 patients were included with age of (51.7±11.8) years old, and 46 males (66.7%). There were 31 patients in the 1 g standard treatment group and 38 patients in the 375 mg/m 2 experimental treatment group. The proportion of first-treatment patients in the 1 g standard treatment group was higher than that in the 375 mg/m 2 experimental treatment group (87.1% vs. 65.8%, χ2=4.174, P=0.041). There were no statistically significant differences in the general data, clinical characteristics and baseline laboratory parameters between the two groups (all P>0.05). At the end of 3 months of treatment, 22 patients (31.9%) experienced remission, including 9 patients (29.0%) in the 1 g standard treatment group and 13 patients (34.2%) in the 375 mg/m 2 experimental treatment group ( χ2=0.211, P=0.646). At 6 months, 30 patients (43.5%) experienced remission, including 12 patients (38.7%) in the 1 g standard treatment group and 18 patients (47.4%) in the 375 mg/m 2 experimental treatment group ( χ2=0.521, P=0.470). At 9 months, 38 patients (55.1%) achieved remission, including 18 patients (58.1%) in the 1 g standard treatment group and 20 patients (52.6%) in the 375 mg/m 2 experimental treatment group ( χ2=0.204, P=0.652). At 9 months, the 24 h urine protein of 1 g standard treatment group and 375 mg/m 2 experimental treatment group decreased by 7.93 (6.24, 8.46) g and 7.45 (5.66, 8.67) g (both P<0.05), respectively, and serum albumin increased by 16.4 (15.5, 17.5) g/L and 15.5 (9.0, 15.8) g/L (both P<0.05), respectively, from the baseline value. Kaplan-Meier survival analysis result showed that there was no significant difference in the time of phospholipase A2 receptor titer decreasing to <5 RU/ml between the two groups (Log-rank χ2=3.653, P=0.056). Twenty-three non-serious adverse events occurred in the 1 g standard treatment group, involving 16 patients, and 10 non-serious adverse events occurred in the 375 mg/m 2 experimental treatment group, involving 10 patients. There was better safety in the 375 mg/m 2 experimental treatment group than that in the 1 g standard treatment group ( Fisher value=8.593, P=0.015). Both 375 mg/m 2 regimen and 1 g regimen of RTX in IMN patients are effective in relieving proteinuria and elevating serum albumin. The 375 mg/m 2 regimen of RTX has a lower incidence of adverse events compared with the 1 g regimen.