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Harmaline and harmine are β-carboline alkaloids with effective pharmacological effects. Harmaline can be transformed into harmine after oral administration. However, enzymes involved in the metabolic pathway remain unclear. In this study, harmaline was incubated with rat liver microsomes (RLM), rat brain microsomes (RBM), blood, plasma, broken blood cells, and heme peroxidases including horseradish peroxidase (HRP), lactoperoxidase (LPO), and myeloperoxidase (MPO). The production of harmine was determined by a validated UPLC-ESI-MS/MS method. Results showed that heme peroxidases catalyzed the oxidative dehydrogenation of harmaline. All the reactions were in accordance with the Hill equation. The reaction was inhibited by ascorbic acid and excess H2O2. The transformation of harmaline to harmine was confirmed after incubation with blood, plasma, and broken blood cells, rather than RLM and RBM. Harmaline was incubated with blood, plasma, and broken cells liquid for 3 h, and the formation of harmine became stable. Results indicated an integrated metabolic pathway of harmaline, which will lay foundation for the oxidation reaction of dihydro-β-carboline. Moreover, the metabolic stability of harmaline in blood should not be ignored when the pharmacokinetics study of harmaline is carried out.
Subject(s)
Animals , Rats , Harmaline/metabolism , Harmine/metabolism , Heme , Hydrogen Peroxide , Tandem Mass SpectrometryABSTRACT
Terpenoid indole (TIAs) and β-carboline alkaloids (BCAs), such as suppressant reserpine, vasodilatory yohimbine, and antimalarial quinine, are natural compounds derived from strictosidine. These compounds can exert powerful pharmacological effects but be obtained from limited source in nature. the whole biosynthetic pathway of TIAs and BCAs, The Pictet-Spengler reaction catalyzed by strictosidine synthase (STR; EC: 4.3.3.2) is the rate-limiting step. Therefore, it is necessary to investigate their biosynthesis pathways, especially the role of STR, and related findings will support the biosynthetic generation of natural and unnatural compounds. This review summarizes the latest studies concerning the function of STR in TIA and BCA biosynthesis, and illustrates the compounds derived from strictosidine. The substrate specificity of STR based on its structure is also summarized. Proteins that contain six-bladed four-stranded β-propeller folds in many organisms, other than plants, are listed. The presence of these folds may lead to similar functions among organisms. The expression of STR gene can greatly influence the production of many compounds. STR is mainly applied to product various valuable drugs in plant cell suspension culture and biosynthesis in other carriers.
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Alkaloids/biosynthesis , Carbolines/metabolism , Carbon-Nitrogen Lyases , Indoles/metabolism , Terpenes/metabolismABSTRACT
Objective: To establish fingerprints of Zexie Decoction (ZXD) by HPLC, analyze them with chemical pattern recognition technology, and determine the contents of 23-acetyl alisone B, 23-acetyl alisone C, and atractylode III in ZXD, in order to provide a scientific basis for its quality control. Methods: The HPLC fingerprint of ZXD was performed on Waters WAT054275 C18 column (250 mm × 4.6 mm, 5 μm) with the mobile phase consisting of acetonitrile and water. Similarity Evaluation System for Chromatographic Fingerprint of TCM (2004A edition) was used to evaluate the fingerprints. SPSS 22.0 software and SIMCA 14.1 software was used for cluster analysis and discriminant analysis of partial least squares of those samples. Furthermore, the content of 23-acetyl alisone B, 23-acetyl alisone C, and atractylode III was determined. Results: The HPLC fingerprint of 15 batches of ZXD was established. The similarity was > 0.94, and 18 common peaks were marked. Three peaks were confirmed, they were: atractylode III (peak 11), 23-acetyl alisone C (peak 15), and 23-acetyl alisone B (peak 16) were confirmed. Cluster analysis and partial least square discriminant analysis were used to classify the 15 batches of ZXD samples into two groups. The mass fraction of 23-acetyl alisone B, 23-acetyl alisone C, and atractylode III in 15 batches of ZXD were in the range of 0.321-0.569, 0.075-0.139, and 0.106-0.142 mg/g, respectively. Conclusion: The combination methods of HPLC fingerprint and simultaneous determinations of multiple components are rapid, simple and reproducible, which can provide reference for the quality evaluation of ZXD and its preparation.
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@#Contrast sensitivity(CS)is regarded as one of the most comprehensive index to measure human spatial vision recently, which can completely and accurately reveal the patients' visual function, and provide an important reference basis for the early diagnosis,disease progression and efficacy evaluation of ophthalmopathy. Studies have found that the damage mechanism of CS is different in different ophthalmopathy, and the influence degree to each spatial frequency area is also slightly different. Therefore, this article reviews the research of CS detection in eye diseases.
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@#Contrast sensitivity(CS)has been widely studied in the research of ophthalmology and optometry. Compared with visual acuity(VA)test, CS assessment can fully and accurately reveal the state of visual function, which has become an important indicator for the prediction, diagnosis of eye diseases and for the evaluation of the disease progression and therapeutic effect. To improve the accuracy of CS measurement, CS detection methods have been constantly improved and innovated, mainly including objective examination and subjective psychophysical examination. Both methods have their advantages and limitations and the main target population is slightly different. With the development of the current Internet Plus, the CS detect software based on computer technology has been successively developed by many research institutions, which provide more convenient detection methods. Therefore, this paper reviews the visual standard design, measurement requirements and main applicable characteristics of common CS detection.
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Ginsenoside Rh2 is a tetracyclic triterpenoid saponin monomer containing a dammarane-type skeleton, with advantages of low toxicity, low molecular weight, good fat solubility and strong anticancer effect, and is the main anticancer effective in ginseng. In recent years, there have been emerging findings on ginsenoside Rh2, indicating an obvious anticancer activity against a variety of cancers with a high morbidity and mortality. Particularly, ginsenoside Rh2 has a significant anti-hepatocarcinoma effect, so the studies on the mechanism of action have gradually been given attention. In this paper, we have reviewed more than 100 domestic and foreign relevant literatures in Chinese and English databases in the past 20 years, such as CNKI, Wanfang Data, VIP Data, Pub Med, and conducted detailed collection, analysis and summary for the contents of the anti-hepatocarcinoma mechanism of ginsenoside Rh2. According to the findings, although there are many reports on the anti-hepatocarcinoma effect of ginsenoside Rh2, the mechanism of action of ginsenoside Rh2 against liver cancer has not been systematically elaborated. Therefore, this paper comprehensively discusses the anti-hepatocarcinoma effect of ginsenoside Rh2, clarifies that the mechanism of action of ginsenoside Rh2 against liver cancer may be related with the inhibition of the proliferation of hepatoma cells, the induction of differentiation of hepatoma cells, the promotion of apoptosis of hepatoma cells, the inhibition of invasion and metastasis of hepatoma cells, the reduction of drug resistance of liver cancer cells, and the improvement of immunity. For the first time, the mechanism of action of ginsenoside Rh2 against liver cancer was comprehensively summarized, which provided reference for researches on ginsenoside Rh2 against liver cancer, evidence and ideas for further researches on ginsenoside Rh2, new research directions for the treatment of liver cancer and new hope to patients with liver cancer.
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<p><b>OBJECTIVE</b>To investigate mechanism of di-(2-ethylhcxyl)phthalate (DEHP) exposure in causing blood-testis barrier (BTB) impairment in rats.</p><p><b>METHODS</b>Two-months-old male SD rats were randomly divided into corn oil control group and DEHP (750 mg/kg) exposure group for daily intragastic treatment for 30 consecutive days. After the treatments the rats were examined for histomorphological changes of the testicle using HE staining and the expressions of the junction proteins N-cadherin β-catenin, occludin and connexin43 of the BTB using Western blot. In the in vitro study, the vitality and ROS generation level in Sertoli cells exposed to different concentrations of DEHP were examined with MTT and ROS assay kits, respectively, and Nrf2 and p-p38 expressions were detected with Western blot.</p><p><b>RESULTS</b>Compared with the control group, the rats with DEHP exposure showed structural damage of the seminiferous tubule and polarity loss of the spermatids. DEHP exposure caused significantly decreased expressions of occludin and connexin43 but increased expressions of N-cadherin and β-catenin in the testicle tissues of the rats (P<0.05). The vitality of Sertoli cells was obviously decreased and ROS level increased significantly after exposure of the cells to increasing concentrations of DEHP, which also resulted in significantly up-regulated Nrf2 and p-p38 expressions (P<0.05).</p><p><b>CONCLUSIONS</b>DEHP exposure causes increased oxidative stress in the Sertoli cells of the testis, activates p38 MAPK signaling pathway, and results eventually in impaired spermatogenesis in rats.</p>
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Objective To study whether the human bone marrow mesenchymal stem cells (HBMSCs) can repair damaged neural cells induced by okadaic acid (OA).Methods Neuroblastoma cell line SH-SY5Y cells were used to incubate with 20nmol/L okadaic acid for 24h,establishing Alzheimer's Disease cell model;Three groups were set up:normal group,okadaic acid-damaged (OA-damaged) group,hBMSCs-treatment group.The cells were injured for 24h with 20nmol/L OA in OA-damaged group,and treated with conditioned medium obtaining hBMSCs for 24h after 24h OA injury in the treatment group.Then CCK-8 was used for detecting cell vitality,immune fluorescence dyed microtubules and micro filaments for determining the dendritic cell length and fluorescence intensity,in addition,Western blotting for analyzing the protein level of phosphorylated tau and total tau proteins.Results Okadaic acid damaged SH-SY5Y cells,contributed to shrinkage,collapse,cavitation of the SH-SY5Y cell body,dendritic shortening and fracture,and irregular arrangement of microtubule microfilaments;while BMSCs conditioned medium made SHSYSY cell body become round and longer,dendrites restored,and microtubules and microfilaments arranged regularly,fluorescence intensity enhanced.Meanwhile,it also down-regulated the level of OA-induced tau phosphorylation.Conclusion hBMSCs have repair effects on the neural cell damage induced by okadaic acid.
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Objective:To explore the clinical effect of hyperbaric oxygen plus magnetic stimulation and Xingnaojing injection on the coma patients with severe brain injury.Methods:120 coma patients with severe brain injury who were treated in our hospital from September 2011 to March,2016 were enrolled in the present study.According to different therapies,they were divided into the observation group (55 cases) and control group (65 cases).Both groups received conventional therapy and Xingnaojing injection,on the the basis of which,the control group received the Hyperbaric Oxygen therapy,while the observation group received Magnetic Stimulation on the basis of control group.The GCS,level of inflammatory factors,clinical prognosis as well as memory function were compared between the two groups.Results:After the therapy,the GCS score of both groups were obviously increased and that of observation group was significantly higher than control group (P＜0.05);the serum level ofCRP,TNF-oα,IL-6 levels were significantly decreased compared with those before therapy,and those of observation group were obviously lower than the control group (P＜0.05);the total effective rate of ob servation group was 94.55％ (52/55),which was equivalent to the control group (89.23％,P＞0.05);the long term memory,short term memory,instantaneous memory and memory quotient of observation group were significantly higher than those of the control group.Conclusion:Hyperbaric oxygen plus magnetic stimulation and Xingnaojing injectionon was effective on the coma patients with severe brain injury,it could down-regulate the inflammatory response,promote awake and recovery of memory function.
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Objective:To study the influence of different dietary patterns in hypertension, and to provide references for establishing a healthy dietary pattern, improving the abnormal blood pressure, preventing the early hypertension and controlling the high blood pressure.Methods:Random cluster sampling was adopted to analyze the dietary,examine the physical situations,and measure the blood pressures among 1 394 residents of Han nationality and Korean nationality aged from 40 to 80 years old from 8 villages in Jinlin Province from 2010 to 2011.Factor analysis was used to establish the dietary patterns and to analyze the effects of different dietary patterns on the prevalence of hypertension.Results:The prevalence of hypertension of middle aged and elderly people in the rural areas of Jilin Province was 35.3%.4 dietary patterns were obtained through factor analysis,including salted product dietary pattern,alcohol dietary pattern,condiments dietary pattern and high protein dietary pattern.By multivariate Logistic regression analysis and adjustment of the age,the gender,the nationality,the education and the career background, alcohol dietary pattern was positively correlated with the occurrence of the hypertension (OR=1.43,95%CI 1.07-1.90).Conclusion:Alcohol dietary pattern is closely related to the hypertension. Long-time large amount of alcohol is a risk cause for high blood pressure. Reducing alcohol consumption and developing healthy diet habits can help to prevent hypertension.
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<p><b>OBJECTIVE</b>To explore the effects of long-term exposure to particulate matter 2.5 (PM2.5) from automobile exhaust on the reproductive function of Sprague Dawley (SD) rats.</p><p><b>METHODS</b>Forty-five male SD rats, weighing 80 - 94 g and aged 28 days, were randomly assigned to receive intra-tracheal administration of 0.9% normal saline (control group, n = 15), PM2. 5 at 2 μg per 100 g body weight per day (low-dose PM2.5 group, n = 15), and PM2.5 at 16 μg per 100 g body weight per day (high-dose PM2.5 group, n = 15), qd, for 60 successive days. After the last 24-hour exposure, 10 rats were taken from each group for copulation with normal female ones, while the others were sacrificed, their testes removed for sperm count and deformity, pathological examination, and determination of the Connexin43 expression.</p><p><b>RESULTS</b>The conception rate was significantly decreased in the low- and high-dose PM2.5 groups as compared with that of the control (70% and 50% vs 100%), and so were the sperm count and quality. The rats in the PM2.5-exposed groups showed significantly disordered histological structure of the seminiferous tubules, reduced sperm count in the testicular lumen, some exfoliated secondary spermatocytes, downregulated Connexin43 expression in the testis, and damaged blood-testis barrier.</p><p><b>CONCLUSION</b>Long-term exposure to PM2.5 from automobile exhaust damages the reproductive function of male SD rats.</p>
Subject(s)
Animals , Male , Rats , Blood-Testis Barrier , Body Weight , Connexin 43 , Metabolism , Down-Regulation , Fertilization , Particulate Matter , Toxicity , Random Allocation , Rats, Sprague-Dawley , Reproduction , Seminiferous Tubules , Sperm Count , Spermatocytes , Testis , Metabolism , Pathology , Vehicle Emissions , ToxicityABSTRACT
Objective To understand the prevalence of hypertension and selenium intake of the residents in rural areas of Jilin province,and to discuss the relationship between selenium intake and the prevalence of hypertension, and to provide reference for prevention and therapy of hypertension.Methods A total of 1 380 inhabitants in rural areas of Jilin province were selected by way of cluster sampling to conduct dietary investigation,physical and blood examination.The selenium intake was categorized into three groups according to tritiles after adjusted by energy, and the relative risk for incidence of hypertension in each group was estimate by using the Logistic regression model with the first group as the reference.Results The prevalence of hypertension in the study area was 37.4%.The average for selenium intake was 35.908μg·d-1 and was lower than the standard level of selenium recommended by RNI.After adjustment for other risk factors,the relative risk for incidence of hypertension for different selenium intakes in the men was 1.00,0.471(95%CI 0.290-0.765),and 0.596(95%CI 0.373-0.951),the P values were 0.002 and 0.030. There was no significant relationship between selenium intake and the incidence of hypertension in the women,and there was also no significant relationship between Han people and Korean people in China.Conclusion The selenium intake is the influencing factor affecting the incidence of hypertension of the male rural residents in Jilin province,which reminds that the increasing selenium intake is helpful for the prevention of male hypertension.
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<p><b>OBJECTIVE</b>To evaluate the efficacy, safety and prognostic impact of rituximab plus CHOP (R-CHOP) regimen on patients with diffuse large B-cell lymphoma (DLBCL), to access the impact of R-CHOP on patients' prognosis and to compare that with CHOP regimen.</p><p><b>METHODS</b>Five hundred and seven newly diagnosed DLBCL patients were enrolled from Jan. 1, 2000 to May 1, 2010. Patients were administered with 6 cycles of CHOP or at least 4 cycles of R-CHOP treatments. Rituximab was administered intravenously on day 1 at a dose of 375 mg/m(2). The typical CHOP regimen include cyclophosphamide (750 mg/m(2), IV), doxorubicin (50 mg/m(2), IV) and vincristine (1.4 mg/m(2), IV, maximum 2 mg) and prednisone (60 - 100 mg, oral, day 3 - 7). The complete response (CR) rates, overall response (OR) rates, and side events of these 2 groups were compared.</p><p><b>RESULTS</b>Of the 411 analyzable patients, 224 received CHOP regimen and 187 received R-CHOP regimen. CR rate for R-CHOP group and CHOP group was 77.01% and 71.43%, respectively. OR rate in R-CHOP group was higher than that in the CHOP group (95.19% vs 87.95%, P = 0.007). The median follow-up time of R-CHOP group was 28.1 months vs that of 35.2 months in CHOP group. There was significant difference in progression free survival (PFS) and overall survival (OS) between 2 groups (P = 0.018 and 0.034, respectively). At the end of follow-up, the estimated median PFS in R-CHOP group had not been reached, while that was 84.8 months in CHOP group. The median OS in both groups had not yet been reached. The adverse events in R-CHOP group were similar with that in CHOP group.</p><p><b>CONCLUSIONS</b>R-CHOP is a safe and effective regimen for management of newly diagnosed DLBCL, with a better remission rate, PFS and OS.</p>
Subject(s)
Aged , Female , Humans , Male , Middle Aged , Antibodies, Monoclonal , Antibodies, Monoclonal, Murine-Derived , Therapeutic Uses , Antineoplastic Combined Chemotherapy Protocols , Therapeutic Uses , Cyclophosphamide , Therapeutic Uses , Doxorubicin , Therapeutic Uses , Follow-Up Studies , Lymphoma, Large B-Cell, Diffuse , Drug Therapy , Prednisone , Therapeutic Uses , Prognosis , Retrospective Studies , Survival Rate , Treatment Outcome , Vincristine , Therapeutic UsesABSTRACT
Objective To investigate the role of Jiawei-sini Dection on expression of rat transforming growth factor-β1 receptor Ⅰ,Ⅱ(TβRⅠ,TβR Ⅱ), and study its treatment of anti-HF and the possible mechanisms. Methods The model of rat hepatic fibrosis was setup by subcutaneous injection of carbon tetrachloride and drinking alcohol freely;According to random block method, the successful model rats were divided into three groups:pathological model group (group B),Fufangbiejiarangan tablet group (group C), and Jiawei Sini Decoction group (group D), each group containing ten rats. Group A and group B were given two milliliters saline, group C was given Fufangbiejiarangan tablets 0.625 grams per kilogram of body weight, group D was given Jiawei Sini liquid 15.625 grams per kilogram of body weight.Each rat was fed once a day for 8 weeks.In order to avoid the natural repair of the hepatic affecting the experimental results, the rats,except group A, were still injected 40% CCl4 three milliliters per kilogram of body weight after feeding drug once a week. Fufang-Biejia-Ruangan Ttablet group was set as a positive control;The effects on expression of TβRⅠ,TβR Ⅱ were determined by immunohistochemical method. Changes of alanine aminotransferase (ALT), aspartate aminotransferase(AST),alkaline phosphatase(ALP) and TβRⅠ,TβR Ⅱ were observed in rats. Results The expression of TβRⅠ、Ⅱ, compared with the pathological model(16.63±2.69)%, (14.57±1.09)%, were significantly reduced in Jiawei-Sini Dection group[they are(8.09±0.71)%,(6.51±0.48)%, the difference was statistically significant(P＜0.05).The effects of Jiawei-Sini Dection was equal to the effect of Fufang-Biejia-Ruangan Tablets on expression of TβRⅠ,TβR Ⅱ(P＞0.05). Conclusion Jiawei-Sini Dection was able to inhibit the expression of TβRⅠ and TβR Ⅱ, thus affected the combination of TGFβ1, and their receptors.
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<p><b>OBJECTIVE</b>To analyze the clinical features and prognostic factors of primary gastric diffuse large B-cell lymphoma (PG-DLBCL) and to evaluate the staging system and treatment modality of PG-DLBCL.</p><p><b>METHODS</b>The clinicopathological data of 69 patients with PG-DLBCL were retrospectively analyzed. Event-free survival (EFS) and overall survival (OS) were the primary endpoints.</p><p><b>RESULTS</b>The EFS rates at 1, 3, and 5 years were 83.8%, 71.1%, and 69.0%, respectively, with a mean EFS of 91.3 months. The 1-, 3-, and 5-year OS rates were 91.3%, 80.3%, and 72.4%, respectively, with a mean OS of 98.8 months. Univariate analysis revealed that either EFS or OS was significantly prolonged by the following factors (P < 0.05): modified Ann Arbor stage I(E) or II(E1) disease; normal lactate dehydrogenase (LDH) level; normal hemoglobin level; normal albumin level; International Prognostic Index (IPI) of 0 or 1; tumor size < 5 cm; and less depth of invasion. While gender, age, B symptoms at presentation, performance status and treatment modality were not significantly associated with the prognosis (P > 0.05). Cox regression model revealed that only modified Ann Arbor stage and albumin level were independent prognostic factors for EFS and OS.</p><p><b>CONCLUSION</b>The most accurate staging system and the exact role of different therapeutic options for PG-DLBCL are still debated. Further randomized prospective studies with a large number of patients are still needed to establish an optimal management for this disease.</p>
Subject(s)
Adolescent , Adult , Aged , Aged, 80 and over , Child , Female , Humans , Male , Middle Aged , Young Adult , Albumins , Metabolism , Antibodies, Monoclonal, Murine-Derived , Therapeutic Uses , Antineoplastic Combined Chemotherapy Protocols , Therapeutic Uses , Combined Modality Therapy , Cyclophosphamide , Therapeutic Uses , Disease-Free Survival , Doxorubicin , Therapeutic Uses , Follow-Up Studies , Gastrectomy , Methods , Hemoglobins , Metabolism , L-Lactate Dehydrogenase , Blood , Lymphoma, Large B-Cell, Diffuse , Blood , Pathology , Therapeutics , Neoplasm Invasiveness , Neoplasm Staging , Prednisone , Therapeutic Uses , Proportional Hazards Models , Radiotherapy, High-Energy , Retrospective Studies , Rituximab , Stomach Neoplasms , Blood , Pathology , Therapeutics , Survival Rate , Vincristine , Therapeutic UsesABSTRACT
<p><b>OBJECTIVE</b>To analyze the clinical characteristics and prognosis of primary non-Hodgkin's lymphoma of the breast (PNHLB).</p><p><b>METHODS</b>The characteristics, treatment methods and outcomes of 45 patients with PNHLB were retrospectively analyzed. Chemotherapy including CHOP and CHOP-like regimens was administered in 43 patients, and monoclonal antibody therapy in 6 patients. Furthermore, 19 patients underwent radiotherapy after chemotherapy.</p><p><b>RESULTS</b>Of these 45 patients, 37 patients had diffuse large B cell lymphoma (DLBCL), patients with T cell or mucosa-associated lymphoid tissue (MALT) lymphoma were 4, respectively. Overall response rate of first-line chemotherapy was 90.7%. Median overall survival (OS) and progression-free survival (PFS) of all patients was 6.82 and 4.25 years, respectively. The results of Cox regression model analysis showed that international prognostic index score (IPI) (RR = 5.682, P = 0.002) and Ann Arbor stage (RR = 1.836, P = 0.040) were negative independent prognostic factors for OS. Central nervous system involvement (RR = 1.107, P = 0.005) was a negative independent prognostic factor for PFS.</p><p><b>CONCLUSION</b>The patients with PNHLB have early occurrence in lifespan. Most pathologic type was DLBCL. IPI and Ann Arbor stage are two independent prognostic factors for survival.</p>
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Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Antibodies, Monoclonal , Therapeutic Uses , Antineoplastic Combined Chemotherapy Protocols , Therapeutic Uses , Breast Neoplasms , Drug Therapy , Pathology , Radiotherapy , Breast Neoplasms, Male , Drug Therapy , Pathology , Radiotherapy , Combined Modality Therapy , Cyclophosphamide , Therapeutic Uses , Disease-Free Survival , Doxorubicin , Therapeutic Uses , Follow-Up Studies , Lymphoma, B-Cell, Marginal Zone , Drug Therapy , Pathology , Radiotherapy , Lymphoma, Large B-Cell, Diffuse , Drug Therapy , Pathology , Radiotherapy , Lymphoma, Non-Hodgkin , Drug Therapy , Pathology , Radiotherapy , Lymphoma, T-Cell , Drug Therapy , Pathology , Radiotherapy , Neoplasm Staging , Prednisone , Therapeutic Uses , Prognosis , Proportional Hazards Models , Radiotherapy, Adjuvant , Remission Induction , Retrospective Studies , Survival Rate , Vincristine , Therapeutic UsesABSTRACT
Objective To investigate the survival profile of the intradermally injected mouse autologous skin fibroblasts and the changes of the collagen fibers by using green fluorescent protein labeling and two-photon fluorescence microscopy. Methods The cultured cells were transfected by EGFP lentivirus, and then the cells were injected into the corresponding mouse skin. Biopsy was taken from the animals after 1 and 2 months. The specimens made serial frozen sections, the survival profile of the injected cells and the changes of the collagen fibers were observed by two-photon fluorescence microscopy. The collagenic area and dermal thickness were measured with image analysis software, and statistical analysis was also carried out. Results Two-photon fluorescence microscopy showed clear images of the injected cells and collagen fibers. Both the area of collagen fibers and the dermal thickness were significantly increased in injected cells after 2 months (P<0.05), however, there were no difference between injected cells and control after 1 mouth (P>0.05). Conclusions Autologous cultured fibroblasts could survive in a long time after transplantating into the skin, and collagen could be newly produced, the depth of dermis increases, which provides a possibility to treat mini-defects of the tissue.
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<p><b>OBJECTIVE</b>To evaluate the efficacy and toxicity of vinorelbine plus cisplatin in the treatment of advanced non-small cell lung cancer (NSCLC) previously treated with taxane-based chemotherapy.</p><p><b>METHODS</b>Thirty patients (0 - 1 score ECOG performance status) with stage IIIB/IV NSCLC previously treated with taxane-based chemotherapy were eligible for the study. Fifteen patients received the regimen of vinorelbine plus cisplatin (NP), the others received mitomycin, vindesine plus cisplatin (MVP).</p><p><b>RESULTS</b>The overall response rates were 13.3% in NP and 0 in MVP (P > 0.05). Time to progression was longer for NP patients than that for MVP ones (6 v 3 months, P < 0.05), so was median survival (9 v 6 months, P < 0.05). The 1-year survival rate of 40.0% in the NP group was significantly higher than that of 0 in MVP (P < 0.05). Grade III-IV toxicity was observed at a similar rate in both groups (P > 0.05), though both well tolerated.</p><p><b>CONCLUSION</b>Regimen of vinorelbine plus cisplatin is appropriate for good performance status patients with advanced non-small cell lung cancer previously treated with taxane-based chemotherapy. Time to progression, median survival and 1-year survival are satisfactory in patients treated with NP, which is complicated with acceptable toxicity.</p>