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Good sleep is essential for children′s physical and mental health, growth, and development.Adequate and high-quality sleep positively impacts children′s quality of life, memory, learning, attention, mood, and behavior.Children of different ages have different sleep needs.Children have various sleep problems in different cultures.Therefore, it is significant to guide children to get healthy sleep by popularizing the sleep problems of Chinese children of all ages and in all dimensions.Based on China′s social and cultural background, this paper summarizes the contents related to children′s sleep physiology, good sleep habits, common sleep problems, sleep apnea disorders, hypnagogic sleep, narcolepsy, insomnia, and other issues that interfere with children′s sleep.Chinese sleep experts summarize and interpret the 100 sleep health problems of children that medical workers and parents are most concerned about.To promote children′s sleep health and popularize solutions to sleep problems.
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With continuous discovery of tumor immune targets and continuous changes in antibody research and development technology, antibody drugs are becoming more and more widely used in clinical practice. However, some targets are not only expressed on tumor cells, but also on red blood cells. Therefore, the clinical application of antibodies against the corresponding targets may interfere with the detection of blood transfusion compatibility, resulting in difficulty in blood matching or delay of blood transfusion. This consensus summarizes the current solutions for the interference of CD38 monoclonal antibody (CD38 mAb) in transfusion compatibility testing. After analyzing the advantages and disadvantages of different methods, polybrene and sulfhydryl reducing agents [dithiothreitol (DTT) or 2-mercaptoethanol (2-Me)], as a solution for CD38 mAb interference in blood compatibility testing, are recommended for Chinese patients, so as to eliminate blood transfusion interference produce by CD38 mAb and further provide a pre-transfusion workflow for clinicians and technicians in Department of Blood Transfusion.
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As special non-nuclear blood cells, platelets play an important role in organism. Over the years, the mechanism of platelets, as well as the production, maturation, metabolism, apoptosis in the body, and the separation and preservation of platelets during in vitro blood transfusion have been continuously studied. There are many kinds of RNAs in platelets. Therefore, platelet RNAs have become an important target for the study of platelet genetic material. With the development of transcriptome, the study of platelet transcriptome has been further studied. This review presents the research methods of transcriptome and the cutting-edge technology in recent years, and discusses the research of platelet transcriptome.
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【Objective】 To compare the transfusion effects of ABO homotype leukocyte depleted suspended RBC and washed RBC in patients, who present major and minor cross-match incompatibility, DAT+, IAT+ and autoantibody+ . 【Methods】 The hemoglobin and total bilirubin of patients before and after transfusion were detected, and statistical analysis was conducted by IBM SPSS Statistics 22.0 software. 【Results】 34 transfusions were performed in 17 patients with major and minor cross-match incompatibility. Both leukocyte depleted suspended RBC and washed RBC significantly increased Hb level(P0.05), with similar transfusion efficacy(P>0.05). After t, Hb levels(g/L) increased by 11.35±8.07 and 13.94±9.017, and TBIL(μmol/L) decreased by 25.76±88.63 and 6.91±9.39, respectively, after the transfusion of leukocyte depleted suspended RBC and washed RBC per unit. 【Conclusion】 For blood recipients with major and minor cross-match incompatibility, both ABO homotype leukocyte depleted suspended RBC and washed RBC, given in time, were effective. However, washed RBC is secondary choice due to long preparation time and short storage time.
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OBJECTIVE@#To explore the molecular basis for an A subtype of the ABO blood group.@*METHODS@#The forward and reverse typing of the ABO blood group were identified by gel card and test tube methods. The ABO gene of the patient was detected by PCR-sequence specific primer (PCR-SSP). Exons 1 to 7 of the ABO gene was amplified by PCR and sequenced. The ABO gene was also subjected to subclone sequencing for haplotype analysis.@*RESULTS@#The patient's red cells showed weak agglutination with anti-A but non-agglutination with anti-B. The patient's serum showed 1+ agglutination with A cells and 4+ agglutination with B cells. Based on above serological characteristics, the patient was defined as Aw subtype of the ABO blood group. Sequencing analysis showed that the patient was heterozygous for c.106G>T, c.188G>A, c.189C>T, c.220C>T, c.297A>G, c.467C>T, c.543G>C, c.646T>A, c.681G>A, c.771C>T, c.829G>A, in addition with a c.261G deletion. Combined with the result of subclone sequencing, the ABO genotype of the patient was determined as ABO*AW.33. new/O.01.02, which harbored c.467C>T and c.543G>C variants compared with ABO*A1.01 and c.543G>C variant compared with ABO*A1.02. The novel allele has been submitted to GenBank with an accession number of MK302122.@*CONCLUSION@#A novel allele of Aw33 subtype has been identified with its GTA transferase gene harboring c.467C>T and c.543G>C variants compared with A1.01.
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Humans , ABO Blood-Group System , Genetics , Alleles , Exons , Genetics , Genotype , PhenotypeABSTRACT
Objective@#To investigate the relationship between the EBV-induced liver injury and caspase-3/6 in children.@*Methods@#Data of 249 patients seen from July 2016 to June 2017 who got infection with EBV were collected in second affiliated hospital of Wenzhou Medical University and the patients were divided into two groups; 168 patients who were diagnosed with hepatitis were selected for abnormal liver function group, laboratory tests were performed in acute phase and convalescent phase. Meanwhile the 81 patients, whose liver function were normal were selected for normal liver function group. Two ml of blood plasma was collected from each patient from both groups at the beginning and after a week’s treatment of the abnormal liver function group. The patients were aged from 1 to 14 years. The abnormal liver function group was further divided into four groups: young children (1-3 years old), preschool children (4-6 years old), school children (7-10 years old), teenagers (10-14 years old). Firstly, we recorded their alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBIL), gamma glutamyl transpeptidase (GGT) and direct bilirubin (DBIL), then by the use of enzyme linked immunosorbent assay (ELISA) we measured the protein level of caspase-3 and caspase-6.@*Results@#In the group of abnormal liver function group, in the acute phase of the teenagers the level of ALT, caspase-3 and caspase-6 are improved significantly(927.2±82.5 vs. 158.5±41.4, P<0.001, 169.8±52.8 vs. 91.5±10.1, P<0.001, P<0.05, 82.2± 2.6, P<0.001, 965.8±31.5, P<0.001, 184.8±14.3, P<0.001), while the AST, TBLL, GGT and DBLL had no significant difference.@*Conclusions@#In the process of EBV-induced liver injury, there was a linear correlation between the increase of caspase-3/6 and ALT in the acute stage, suggesting that EBV-induced liver injury is closely related to caspase-3/6.
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Objective To study the molecular mechanism of Bel subtype caused by mutation p.R168W of glycosyltransferase B.Methods Serological test,SSP-PCR and direct sequence the Exon6 and Exon 7 of the ABO gene.Construct a 3D molecular model and predict the structural impact of GTB protein mutations.Results A antigen or B antigen can't be detected on the surface of the propositus' RBC,and only anti-A antibodies were detected in her serum.But serological test indicated her daughter's blood type was a normal B type.SSP-PCR test indicated propositus' ABO gene type is O1 B.By gene sequencing the Exon 6 and Exon 7 of the ABO gene,a ABO Bel allel(c.502C＞T,p.R168W)was discoverd in both the propositus and her daughter.Through the propositus' daughter coexisted Bel gene with normal B gene,her blood type was a normal B type.Conclusions ABO gene c.502C＞T mutations cause Bel phenotypes in patients by reducing the stability of GTB.
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Objective To analyze the screening results of yon Willebrand factor among patients before blood transfusion in Ruijin Hospital and discuss von Willebrand factor in ABO blood group and the relationship between age and gender,refine the classification of vWF antigen and activity by reference factors.Methods The von Willebrand factor among 247 cases of patients before blood transfusion in Ruijin Hospital with no clinical manifestations of abnormal blood clots and routine coagulation as laboratory tests for normal surgical patients.The vWF:Ag and vWF:Act were measured by immune turbidimetric method and ABO blood group was identified by blood type serology.Furthermore,the differences between A,B,O,AB different blood groups,sex and high (≥40 years) and low age group (＜40 years) were compared by statistical methods.Results The levels of vWF:Ag in different blood groups were as follows:A blood type:98.5-142.00,B blood type:97.90-160.30,O blood type:82.13-125.45,A B blood type:103.00-135.80.The levels of vWF:Act in different blood groups were as follows:A blood type:76-130.14,B blood type:78.06-144.3,O blood type:60.89-116.11,AB blood type:88.99-124.09.O blood type vWF:Ag and vWF:Act were lower significantly (P＜0.05) than non-O blood type,the difference was.Besides,young vWF:Ag and vWF:Act were lower significantly than in the elderly.There was no significant difference in vWF:Ag and vWF:Act levels between male and female groups.At last,the reference range of four groups of vWF activity (antigen) was obtained.Conclusion Plasma vWF antigen and activity levels were significantly affected by ABO blood type and age,and the refined reference range established for these influencing factors was beneficial for more detailed diagnosis of VWD and predicting vWF levels associated with bleeding and thrombosis risk.
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[ ABSTRACT] AIM: To investigate the effect of chronic intermittent hypoxia on AMP-activated protein kinase ( AMPK) pathway in the brain of young rats.METHODS:Part one:SD mice (3~4 weeks old) were randomly divided into 4 groups (n=8): simulated air control group for 2 weeks (2AC), chronic intermittent hypoxia group for 2 weeks (2IH), simulated air control group for 4 weeks (4AC) and chronic intermittent hypoxia group for 4 weeks (4IH).Part two:SD mice (3~4 weeks old) were randomly divided into 2 groups (n=8): chronic intermittent hypoxia group for 4 weeks (4IH) and chronic intermittent hypoxia group treated with AMPK inhibitor for 4 weeks (4IHI).After modeling, the eight-arm maze test was performed.TUNEL method was used to detect the neuronal apoptosis in the hippocampal and pre-frontal cortical tissues.The mRNA expression of adenosine A2a receptor was examined by RT-qPCR, and the protein levels of phosphorylated AMPK (p-AMPK) and mammalian target of rapamycin (p-mTOR) were determined by Western blot. RESULTS:Compared with control group, the numbers of reference memory error ( RME) , working memory error ( WME) and total error (TE) in 2IH group and 4IH group significantly increased (P<0.01).Compared with 2IH group, the num-bers of errors in 4IH group also increased significantly (P<0.01).Compared with 4IH group, the values in 4IHI group significantly decreased.Compared with control group, the neuronal apoptosis of hippocampus and prefrontal cortex in 2IH group and 4IH group increased, and that in 4IH group was more evident (P<0.05).In 4IHI group, the neuronal apopto-sis decreased.The mRNA expression of adenosine A2a receptor in the hippocampal and cortical tissues in 2IH group and 4IH group was higher than that in control group.The protein level of p-AMPK was higher, and p-mTOR was lower in 2IH group and 4IH group, and those in 4IH group were more evident (P<0.05).Compared with 4IH group, the protein level of p-AMPK was lower, and p-mTOR was higher in 4IHI group.CONCLUSION: Chronic intermittent hypoxia induces neuronal apoptosis, resulting in impairment of learning and memory in a time-dependent manner by upregulating adenosine A2a receptor, activating AMPK activity, and inhibiting mTOR phosphorylation in rats.
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Objective To identify and investigate B(A)02 allele in a patient. Methods Serological tests were performed with standard serological methods in a patient with B(A)02 allele. DNA sequences of all seven exons and exon-intron boundaries of ABO gene were analyzed by polymerase chain reaction (PCR), direct DNA sequencing and sequencing after gene cloning. In order to analyze the allele, PyMOL software was used to establish 3D model of Glycosyltransferases B (GTB). Results The serological results showed the characteristics of B(A) phenotype. DNA analysis revealed that ABO gene of the individual was heterozygous of B(A)02/O01 allele. 700C>G mutation was identified in B101 allele, which resulted in the amino acid substitution P234A in GTB. Through the analysis of the 3D structure of GTB, it was speculated that the P234A replacement affected the intermolecular forces of the 234 amino acid and Met-266, thus changed the conformation of the donor-binding pocket of GTB,that made GTB capable of recognizing and tranferring the GalNac to the H antigen, which can lead to the formation of the weak A antigen on membrane of red blood cells. Conclusion The P234A replacement can affect the spatial conformation of the specific recognition region conformed by Met-266 and Ala-268 residues, which leads to the antigenicity change of the ABO blood group.
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<p><b>OBJECTIVE</b>To determine the clinical value of portable sleep testing by Watch-PAT (PAT) in children with obstructive sleep apnea syndrome (OSAS).</p><p><b>METHOD</b>Fifty cases of snoring children aged 3-11 years were randomly selected to undergo the polysomnography (PSG) and PAT simultaneously at the same night. The consistency of sleep parameters in OSAS and non - OSAS children were compared with PSG as reference standard, and ROC curve analysis was performed to assess the sensitivity and specificity in the diagnosis of OSAS with PAT portable sleep monitor.</p><p><b>RESULT</b>Fourteen cases were diagnosed as OSAS in 6-11 years group by PAT and PSG. But in 3-5 years group, only six children were diagnosed as OSAS, there was significant difference between PAT and PSG (P < 0.05). Among those 6-11 years old children, compared with non-OSAS, PAT study showed that III+IV stage sleep ((30.5 ± 2.4)% vs. (38.2 ± 2.3)%, χ(2)=4.31, P<0.05), REM sleep duration ((8.9 ± 2.5)% vs. (18.3 ± 2.1)%, χ² =4.31, P<0.05), TST ((458 ± 78) min vs. (522 ± 56) min, t=4.85, P<0.05) and sleep efficiency ((83.5 ± 3.1)% vs. (93.5 ± 3.5)%, t=3.75, P<0.05) decreased, I+II stage sleep ((61.5 ± 4.4)% vs. (44.1 ± 3.5)%, χ² =6.07, P<0.05), arousal index ((29.5 ± 8.2)/h vs. (10.6 ± 5.6)/h, t=3.70, P<0.05), AHI ((7.6 ± 5.3)/h vs. (2.1 ± 2.0)/h, t=2.40, P<0.05), RDI((18.2 ± 5.1)/h vs. (6.5 ± 3.9)/h, t=3.85, P<0.05) increased in OSAS children. Furthermore, the total sleep time (TST) ((458 ± 78) min vs. (430 ± 76) min, t=2.90, P<0.05) and sleep efficiency ((83.5 ± 3.1) % vs. (81.9 ± 4.3) %, t=2.45, P<0.05) were higher by PAT than scored by PSG. ROC curve analysis showed the best threshold selection of AHI 5.0, the sensitivity was 0.952, the specificity was 0.858. AHI 7.0, the sensitivity was 0.968, the specificity was 0.985. AHI 10, the sensitivity was 0.985 and the specificity was 0.99, but AHI 1.0, the sensitivity was 0.852 and the specificity was 0.785.</p><p><b>CONCLUSION</b>PAT can be used at home in school age children due to the high consistency with PSG and the high compliance.</p>
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Child , Child, Preschool , Humans , Polysomnography , Methods , ROC Curve , Sensitivity and Specificity , Sleep , Sleep Apnea, Obstructive , Diagnosis , Sleep Stages , SnoringABSTRACT
AIM: To investigate the mechanism of renal damage in chronic intermittent hypoxia (CIH) rat model.METHODS:The Sprague-Dawley rats were randomly divided into 2-week CIH group (2IH), 2-week simulated air control group (2C), 4-week CIH group (4IH) and 4-week simulated air control group (4C).HE staining, PAS staining and Masson staining were used for histological evaluation .Blood was collected for the measurement of superoxide dismutase (SOD).The mRNA expression of hypoxia-inducible factor-1α(HIF-1α), manganese superoxide dismutase (MnSOD), copper/zinc superoxide dismutase ( Cu/ZnSOD ) was detected by real-time PCR.RESULTS: ( 1 ) No significance difference of renal weight , body weight , and the ratio of renal weight to body weight was observed , while IH caused mor-phologic kidney damage , especially in 4IH group.Hypertrophy of epithelial cells in the kidney tubles and dilation in the glomeruli were observed under light microscope with HE and PAS staining , especially in 4IH group.Masson staining showed no significant fibrotic response in the kidney of the rats exposed to IH .(2) The SOD levels in the serum and kid-ney were decreased after CIH .Compared with the corresponding control groups , the levels of serum SOD were significantly lower in CIH groups, especially in 4IH group.The mRNA expression of Cu/ZnSOD and MnSOD in CIH groups decreased significantly as compared with control groups .The mRNA levels of HIF-1αwere significantly higher in CIH groups than those in the corresponding control groups .CONCLUSION: CIH induces abnormalities of glomeruli and convoluted tu-bules, while 4-week IH exposure has not led to fibrotic response .CIH participates in the process of renal oxidative stress damage by upregulating HIF-1αtranscription and downregulating Cu/ZnSOD and MnSOD transcription .
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<p><b>OBJECTIVE</b>To evaluate effectiveness therapeutic regimens for obstructive sleep apnea hypopnea syndrome (OSAHS) children at an acceptable cost.</p><p><b>METHOD</b>This study was performed at Yuying Children's Hospital of Wenzhou Medical University from Mar. 2008 to Dec. 2010. Prospective random number table method was used for the analysis; 60 children with mild OSAHS were divided into Mild OSAHS Montelukast Treatment (MM) group and Mild OSAHS Adenotonsillectomy Treatment (MAT) group. 32 children in MM group were treated with leukotriene receptor antagonists (LTRAs), while 28 children in MAT group were treated with adenotonsillectomy. Also, 58 children with moderate and severe OSAHS were divided into severe OSAHS Montelukast Treatment (SM) group and severe OSAHS Adenotonsillectomy Treatmen (SAT) group. Twenty-two children in SM group were treated with LTRAs, while 36 children in SAT group were treated with adenotonsillectomy. All selected children were evaluated by polysomnography (PSG) and Obstructive Sleep Apnea-18 (OSA-18) items before and after a six-month treatment. Both records were taken and analyzed, surgical complications and the reason for non-remission after operation were also analyzed. Two therapies were compared based on economic consideration and therapeutic effect. Result (1) PSG: A significant change of a significant change of Apnea Hypopnea Index (AHI) was observed in MM group after the treatment (before receiving the treatment 4.56 ± 1. 26, and after receiving the treatment 3. 48 ± 1. 52, t =3. 50, P <0. 05). But for oxygen desaturation Index (ODI) (MM group 2. 18 ± 2. 19, and MAT group 1. 80 ± 2. 34) and Lowest Oxygen satuation (LSaO2) (MM group 91. 66 ± 2. 34, and MAT group 92. 79 ± 2. 18), there was no significant difference in MM group and MAT group after the treatment (ODI, t =0. 65, and LSaO2 t = - 1. 93, P >0. 05). (2) OSA-18 scores: Significant differences were found in sleeping disorder (before 14. 81 ± 6. 28, and after 10. 56 ± 3. 57), the degree of familial stress (before 13. 56 ± 3. 54, and after 8. 97 ± 2. 96), and OSA-18 total scores (before 52. 66 ± 1. 11, and after 42. 56 6. 48) in MM group after the treatment (sleeping disorder Z - 3. 14, the degree of familial stress Z = -4. 50, and OSA-18 total scores Z= -4. 01, P <0. 05). (3) In addition to the cost of drugs, groups with surgical treatment had a larger economic burden than those with LTRAs treatment. (4) Treatment was totally effective for 28 children (88%) in MM group, and 28 children (100%) in MAT group. Meanwhile, treatment also achieved an obvious effect on 2 children (9%) in SM group, and in 35 children (97%) in SAT group. In MAT group, 3 children improved (11%). And in SAT group, 7 children improved (19%), but treatment was found to be ineffective in 1 case (3%). Among those effective and ineffective cases in groups with surgical treatment, there were 9 children with nasal diseases.</p><p><b>CONCLUSION</b>(1) Surgical treatment is recommended as the first choice for children with moderate and severe OSAHS. And for those who also suffer from nasal diseases, treatment combining drugs with surgery is necessary. (2) LTRAs therapy has a good effect for mild OSAHS. Surgery is also recommended when drugs could not achieve any obvious improvement in clinical symptoms of children with mild OSAHS.</p>
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Child , Humans , Adenoidectomy , Blood Gas Analysis , Cost of Illness , Oxygen , Polysomnography , Prospective Studies , Sleep Apnea, Obstructive , General Surgery , Sleep Wake Disorders , Tonsillectomy , Treatment OutcomeABSTRACT
Objective To observe prospectively and systematically the effect and safety of rhendostati injection (endostar) combined with FOLFOX as a second line chemotherapy for advanced/metastatic colorectal cancer. Methods 23 patients with histological confirmed advanced/metastatic colorectal cancer after first line chemotherapy failure were observed. The dosage of 15 mg/time of endostar solved in 500ml normal saline was slowly intravenously dropped 4 h from day 1 to day 14. Oxaliplatin 85 mg/m~2 iv 2-3 h dl, d15. CF 200 mg/m~2 iv 2 h followed by 5-Fu 400 mg iv bolus and 5-Fu 600 mg/m~2 iv 22 h dl-2, d15-16 were given, every 4 weeks as one cycle. Efficacy was evaluated after 2 cycles according to RECIST criteria. Results 23 cases had been completed totally 56 cycles. Among 23 cases, 8 cases were PR, 12 cases SD, and 3 cases PD. The objective response rate (RR) was 34.8 % (8/23), and the disease control rate (DCR) was 87.0 % (20/23). The median time to progression was 7 months. The 1-year survival rate were 50.0 %. The 2-year survival rate was 40.0 %. The occurrence rate of G3/4 toxicities was low, including neutropenia(21.7 %), anemia(4.3 %), thrombocytopenia (13.0 %). Those toxicities were mainly related with the chemotherapy agents. Meanwhile transient electrocardiogram changes mild ST-T of changes occurred in 3 cases. 2 cases were mild hypertension and were symptomatically controlled. Conclusion There are better efficacies of endostar combined with FOLFOX chemotherapy for advanced/metastatic colorectal cancer, and it is low toxic and tolerable. It is worth of further clinical observation. More experiences need to be accumulated.
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Objective To observe the effect and toxicity of oxaliplatin plus 5-Fu and CF (FOLFOX) vs irinteean plus 5-Fu and CF (FOLFIRI) in patients with advanced/metastatic colorectal cancer. Methods 67 patients with histologicaly confirmed advanced/metastatic colorectal cancer were non-randomized to enter the study. Patients for FOLFOX: oxaliplatin 85 mg/m2 iv 2 h d1.CF 200 mg/m2 iv 2 h followed by 5-Fu 250 mg iv bolus and 5-Fu 600 mg/m2 iv 22 h d1,2 were given, every 2 weeks as one cycle. FOLFIRI: irinotecan 150 mg/m2 iv d1. CF, 5-Fu do so. Efficacy was evaluated at 4 cycles. Results For 39 patients to FOLFOX and 37 patients to FOLFRI, the objective response rate (CR+PR) was 41.0 % vs 35.1%. The median time to progression was 5.2 months vs. 5.8 months in the FOLFOX and FOLFIRI arm. The median survival time was 13.2 months vs. 14.0 months in the FOLFOX and FOLFIRI arm respectively. The clinical benefit rate was 71.8 % vs 78.4 % in the FOLFOX and FOLFIRI ann respectively. There was no significantly differences between two arms (P>0.05). The most frequently observed toxicity reaction was hematological toxicity nausea/vomiting and neurn-sensory toxicity in FOLFOX arm, and hematological toxicity and diarrhea in FOLFIRI arm. FOLFIRI arm had a remarkably higher incidence rate of grade 3 diarrhea than FOLFOX arm(P<0.025). Conclusion FOLFOX and FOLFIRI arm provid high effective and well tolerable treatment for advanced/ metastatic colorectal cancer.
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[Objective] To explore the best method for sequelae neuralgia of herpes zoster.[Method] Randomly divide the said patients into groups treated with external application of Chinese drugs and sky moxibustion,make observation and comparison between them.[Result] Both got high late curative effect,however most patients in the sky moxibustion group were cured without recurrence,the pain relieving rate was high once being cured,the reduce of pain index was apparent after treatment,which was of statistical meaning compared with drug application group.[Conclusion] The sky moxibustion method combines drugs and moxibustion well and has marked advantages in treating herpes zoster,worth of promotion and application.
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<p><b>BACKGROUND</b>To observe the efficacy and toxicity of gemcitabine plus carboplatin (GCarb) versus gemcitabine plus cisplatin (GCis) in the treatment of advanced non-small cell lung cancer (NSCLC).</p><p><b>METHODS</b>Forty patients with histologically confirmed NSCLC were randomized to enter the study. GCarb group:Gemcitabine 1 000 mg/m² IV on day 1,8; carboplatin AUC 4-6 IV on day 1. GCis group: Gemcitabine 1 000 mg/m² IV on day 1,8; cisplatin 30-40 mg/m² IV on day 1-3.</p><p><b>RESULTS</b>The response rate was 65% and 60% for GCarb group and GCis group respectively (P > 0.5). Toxicities included myelosuppression, digestive reaction, alopecia and rash. Digestive toxicity in GCarb group was less than that in GCis group (P < 0.05).</p><p><b>CONCLUSIONS</b>Both GCarb and GCis regimes can be used as first-line protocol in the chemotherapy of non small cell lung cancer.</p>
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AIM:To observe the alterations in cognition of growing rats exposed to chronic intermittent hypoxia (CIH) and to explore its underlying mechanisms. METHODS:Forty male Sprague-Dawley rats (3-week-old～4-week-old and 80 g to 100 g),which had been trained to complete the 8-arm (4-arm baited) radial maze,were randomly divided into 4 groups:2-weeek-CIH group (2IH),4-week-CIH group (4IH),-week -control group (2C) and 4-weeek-control group (4C). The intermittent hypoxia model was induced by putting the animals in an intermittent hypoxia cabin. When intermittent hypoxia was terminated,spatial memory of these growing rats was tested by 8-arm (4-arm baited) radial maze task,then,one rat in each group was randomly selected for ultrastructural observation. The hippocampus and prefrontal cortexes of the rats were collected for analyzing the mRNA and protein expression of CREB by RT-PCR and Western blotting,respectively. RESULTS:(1) In the 8-arm (4-arm baited) radial maze task,the results indicated that the rats in the 4 groups displayed significant difference in their performance assessed by three measuremens:the reference memory error,the working memory error and total memory error (P 0. 05,respectively). CONCLUSION:Exposure to experimentally-induced IH in growing rats is associated with time related spatial memory impairment. Chronic intermittent hypoxia leads to the disorders of neuron ultra-structure in memory related brain regions. It also inhabits the CREB transduction,expression and CREB phosphorylation,decreases the synthesis of the memory related protein. These factors maybe contribute to learningmemory impairment of growing rats exposed to chronic intermittent hypoxia.
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AIM: To study the role of the gene and protein expression of MIP-1? and RANTES in the bronchus of murine asthma. METHODS: 20 male BALB/C mice were randomly divided into two groups: the control group (A 0 group) and asthma group (B 0 group). In the experiment, the mice model of asthma was established by the ovalbumin (OVA) challenge methods. The protein expression of MIP-1? and RANTES were detected by immunohistochemistry methods. The gene expressions of MIP-1? and RANTES were detected by in situ hybridization methods. RESULTS: Immunohistochemistry showed that the expressions of MIP-1? protein and RANTES protein around the bronchus of group B 0 were significantly higher than those of group A 0 (P