Intervention Effect and Mechanism of Fufang Huangbaiye Tuji on Skin with Deep Ⅱ Degree Burn Wound / 中国实验方剂学杂志

Objective:To study the intervention effect and underlying mechanism of Fufang Huangbaiye Tuji （FFHBY） on skin with deep Ⅱ degree burn wound. Method:Patients with deep Ⅱ degree burn of fire-toxin injuring fluid syndrome diagnosed in the Affiliated Hospital of Chengde Medical University from June 2019 to June 2020 were randomly divided into a control group （iodophor solution， 35 mL per 1% body surface area）， a low-dose treatment group （FFHBY， 17.5 mL per 1% body surface area）， and a high-dose treatment group （FFHBY， 35 mL per 1% body surface area）， 40 cases in each group. The patients in each group were treated correspondingly with dressing chance once per day. The pathological changes of the wound were observed on the 14th day after treatment. Wound symptoms and signs in each group before treatment and on the 7th， 14th， and 21st days after treatment were quantified， and the clinical efficacy on the 21st day after treatment was evaluated. Wound healing rates in each group were calculated on the 7th， 14th， and 21st days after treatment. The levels of vascular endothelial growth factor （VEGF）， fibroblast growth factor （FGF）-2， FGF-7， epidermal growth factor （EGF）， interleukin （IL）-10， tumor necrosis factor （TNF）-<italic>α</italic>， and Caspase-3 in wound tissues were measured with enzyme-linked immunosorbent assay （ELISA）. Nuclear factor kappa-B （NF-<italic>κ</italic>B） p65 expression in wound surface was detected by immunohistochemistry. The apoptosis rate in wound tissues was determined by the TdT-mediated dUTP-biotin nick end labeding assay （TUNEL） method. Result:There was no significant difference in scores of symptoms and signs among groups before treatment. Compared with the control group， the treatment groups showed no significant difference in wound healing rates on the 7th day after treatment and increased healing rates on the 14th and 21st day after treatment（<italic>P</italic><0.05）. The clinical efficacy in the treatment groups was superior to that in the control group on the 21st day after treatment. Additionally， the treatment groups also showed decreased scores of local symptoms and signs， increased levels of VEGF， FGF-2， FGF-7， EGF， and IL-10， and dwindled apoptosis rate and levels of Caspase-3， TNF-α， and NF-<italic>κ</italic>B p65 expression in wound tissues on the 7th，14th and 21st day after treatment （<italic>P</italic><0.05）. The high-dose treatment group was superior to the low-dose treatment group in the above indicators （<italic>P</italic><0.05）. Histopathological examination showed that inflammatory cell infiltration was relieved in the treatment groups as compared with that in the control group， and the high-dose treatment group exhibited superior efficacy. Conclusion:FFHBY had an obvious therapeutic effect on deep Ⅱ degree burn. It could promote wound healing by up-regulating the level of growth factors， improving inflammatory response， and inhibiting cell apoptosis in a dose-dependent manner.

Efficacy of Fufang Huangbaiye Tuji on Inflammation on Skin with Deep Ⅱ Degree Burn and Its Dose-effect Relationship / 中国实验方剂学杂志

Objective:To observe the effect of different doses of Fufang Huangbaiye Tuji asin the treatment onof the inflammatory response in healing process for of skin with deep Ⅱ degree burn. Methods in healing process. Methods:The 120 cses patients with deep Ⅱ degree burn of fire-toxin injuring fluid syndrome diagnosed in the affiliated hospital of Chengde Medical University between June 2019 and March 2020 were randomly divided into control group，low -dose treatment group and high -dose treatment group，with 40 cases in each group and once. They got a dressing change perevery day. Control group was locally administered with lodophor solution 35 mL per 1% on the body surface area. Low-dose treatment group was locally administered with compound cortex phellodendri fluid 17.5 mL per 1% on the body surface area，while high-dose treatment group was locally administered with compound cortex phellodendri fluid 35 mL per 1% on the body surface area. Observe theThe inflammatory reaction of wound surface in each group onwas observed at admission and after treatment. The pathological changes of each groupsgroup were observed， and determination of nuclear factor kappa-B（NF-<italic>κ</italic>B） p65 expression inon the wound surface was determined by immunohistochemistry on the 4th day after the treatment. The levels of interleukin（IL）-2，IL-8 and tumor necrosis factor（TNF）-α in wound tissue were measured with ELISA and Bacterial culture and count were performed in each group on the 4^th，10^th and 21^st daydays after treatment. The levels of IL-2，IL-8 and TNF-α in wound tissue were measured with ELISA. Results:There was no significant difference in the degree of wound inflammation in each group at admission，and the degree of relief after treatment was positively correlated with the treatment time. At the simultaneous phase point，the inflammatory reaction was severest in control group，which was followed by low-dose treatment group and high-dose treatment group. Bacterial growth were observed on the 4^th day in control group，which was found in low-dose and high-dose treatment groups on the 10^th day，the detection rates of Staphylococcus aureus and Pseudomonas aeruginosa were the highest. Compared with control group，the mean integrated optical density of NF-<italic>κ</italic>B p65 in wound tissue decreased markedly in low-dose and high-dose treatment groups on the 4th day after treatment（<italic>P</italic><0.05），the bacterial count decreased significantly in low-dose and high-dose treatment groups on the 10^th and 21^st days after treatment（<italic>P</italic><0.05），and the levels of IL-2，IL-8 and TNF-<italic>α</italic> in wound tissue decreased markedly in low-dose and high-dose treatment groups on the 4^th，10^th and 21^st days after treatment（<italic>P</italic><0.05），with statistically significant differences between low-dose and high-dose treatment groups（<italic>P</italic><0.05）. Histopathological examination showed that inflammatory granulocytes and edema were improved in low-dose and high-dose treatment groups compared with control group，with a more significant performance in high-dose treatment group. Conclusion:The external application of compound cortex phellodendri fluid can reduce thebacterial growth of bacteria in on the wound surface，which may reduce the inflammatory reaction by inhibiting the production and release of inflammatory mediators，with a certain dose-effcteffect relationship，and is worth clinical promotion.

Quality Evaluation of Galli Gigerii Endothelium Corneum by Allele-specific PCR Method / 中国实验方剂学杂志

Objective: To screen the specific reverse primers of Galli Gigerii Endothelium Corneum,duck gizzard membrane and goose gizzard membrane,and establish a specific PCR for molecular identifying Galli Gigerii Endothelium Corneum and its common adulterants. Method: Based on the mutation sites on the 12S rRNA sequence,specific polymerase Chain reaction(PCR) identify primers were designed for chicken,duck and goose gizzard membrane. The specific PCR reaction conditions were optimized,and the PCR identification method was explored and verified in terms of tolerance and feasibility. Thirty batches of Galli Gigerii Endothelium Corneum decoction pieces extracted from the test were identified. Result: Thirty batches of Galli Gigerii Endothelium Corneum decoction pieces were detected using chicken-specific primers, 273 bp of specific bands was amplified and visualized on the agarose electrophoregram. When duck and goose primers were used,no corresponding amplified band was detected. Conclusion: The allele-specific PCR method can be used as a rapid and accurate method to identify Galli Gigerii Endothelium Corneum. It is a promise method for special sampling tasks of Chinese herbal medicine and decoction tablets nationwide.

Causes of oocyte vitrification and its value in assisted reproductive technology / 南方医科大学学报

OBJECTIVE@#To explore the causes of oocyte vitrification and its application in assisted reproduction.@*METHODS@#We retrospectively analyzed the data of 26 patients with 27 cycles of oocyte vitrification cryopreservation undergoing intracytoplasmic sperm injection (ICSI) and embryo transfer between January, 2008 and October, 2018. The causes of oocyte vitrification and the outcomes of ICSI and clinical pregnancy were analyzed.@*RESULTS@#The causes of oocytes vitrification included mainly azoospermia or severe spermatogenesis disorder of the husband, failure to obtain sperms from the husband, failure of the husband to be present on the day of oocyte retrieval and acute diseases of the husband to not allow sperm collection. A total of 274 oocytes were frozen in 27 oocyte retrieval cycles, and 217 eggs were thawed in 19 cycles with a survival rate of 81.11% (176/217). The normal fertilization rate, cleavage rate and high-quality embryo rate was 74.81% (98/131), 89.80% (88/98) and 36.73% (36/98), respectively. Fifteen patients underwent embryo transfer, and the clinical pregnancy rate and live birth rate was 53.33% (8/15) and 33.33% (5/15), respectively. Compared with patients below 35 years of age, the patients aged above 35 years had significantly lower oocyte survival rate after thawing (82.76% 74.42%, =0.211), clinical pregnancy rate (77.78% 16.67%, =0.041) and live birth rate (55.56% 0, =0.044).@*CONCLUSIONS@#Oocytes vitrification can be used as a remedy for infertile couples who fail to provide sperms due to male factors on the day of oocyte retrieval. Vitrification of the oocytes does not significantly affect the fertilization rate or the clinical pregnancy rate. The survival rate of the thawed oocytes is related to the age of the wife, and an age younger than 35 years can be optimal for achieving favorable clinical pregnancy outcomes after oocyte vitrification.

Effects of cetrorelix versus ganirelix in gonadotropin-releasing hormone antagonist cycles for preventing premature luteinizing hormone surges and on clinical outcomes of IVF-ET cycles / 南方医科大学学报

OBJECTIVE@#To compare the effects of cetrorelix and ganirelix in gonadotropin-releasing hormone antagonist (GnRH-ant) cycles for preventing premature luteinizing hormone (LH) surges and on clinical outcomes of IVF-ET cycles.@*METHODS@#We retrospectively analyzed 2572 GnRH-ant cycles of fertilization and embryo transfer from January, 2013 to December, 2016, including 1368 cycles with cetrorelix treatment and 1204 cycles with ganirelix treatment. The baseline characteristics of the patients and the clinical outcomes of the two groups were compared.@*RESULTS@#Compared with those receiving ganirelix treatment, the patients with cetrorelix treatment had a significantly younger age (33.10 33.89 years, 0.05). The two groups also had comparable percentages of patients with LH > 10 U/L on the day of hCG triggering (3.7% 3.2%) and similar spontaneous ovulation rate (0.6% 0.5%), clinical pregnancy rate (47.7% 45.9%) and live birth rate (37.5% 33.6%) following fresh embryo transfer ( > 0.05). The incidence of moderate to severe ovarian hyperstimulation syndrome, however, was significantly higher in ganirelix group than in cetrorelix group (0.7% 0.1%, =0.006).@*CONCLUSIONS@#Cetrorelix and ganirelix can achieve comparable effects for preventing premature LH surges and can achieve similar clinical outcomes of GnRH-ant cycles, but ganirelix is associated with a significantly higher incidence of moderate to severe ovarian hyperstimulation syndrome.

The application study of scan technique of perspective ECG-gating of spiral CT with 64 slices in the CHD / 中国医学装备

Objective: To explore the setting of the scan mode of prospective electrocardiography (ECG)-gating of spiral CT with 64 slices for the adults with congenital heart disease (CHD) so as to obtain satisfying images and scanning parameters. Methods: 18 adults with CHD were scanned by using spiral CT with 64 slices. The flow rate of contrast agent was 4mL/s, and 20 mL normal saline (NS) was injected after 70 mL contrast agent was injected, and then 15mL contrast agent was injected following with NS, and 25mL NS was used for tracing injection. The prospective ECG-gating and intelligence tracing of contrast agent were adopted to scan. The descending aorta that has same height with crotch of weasand should be chosen as interesting position, and the threshold value was 130 HU, the scan mode of triggering threshold was adopted in the research. The post processing workstation (Philips EBW) was applied to adopt reestablishment of sagittal view, coronal view and axial view, and to carry out reconstruction of 3D multiplanar reformation (MPR), curved planar reformation (CPR), maximum intensity projection (MIP) and volume rendering (VR) so as to observe the situations of heart cavity and peripheral vessel of patients. Results: Each atrium and ventricle has clear construction, and the relationship with peripheral vessel was clearness, and the aortic valve and atrioventicular septum could be observed. And the diagnostic result by using reconstruction technique could be identical with image of Doppler echocardiography. Conclusion: The scan technique of perspective ECG-gating of spiral CT with 64 slices could obtain images, that conformed to requirement of diagnosis and had value, of each atrium, ventricle and peripheral vessel. In the scan, the accurate and suitable parameters, the appropriate dosage and usage of contrast agent, the scan speed, scan time and setting of triggering threshold were the key factors of obtaining image with high quality.

Surveillance on iodine nutritional status among target population in Shanghai / 上海预防医学

Objective To ascertain iodine nutritional status of pregnant women and children in Shanghai since the implementation of "Salt Iodine Content Standard" in 2011.Methods By population proportion probability sampling,30 sub-districts(towns) were chosen,with one primary school was randomly sampled in eachsub-districts(towns).And 50 students aged 8-10 in every school were randomly selected to test their urinary iodine and thyroid volume,and their household iodized salt concentration determined.And 20 pregnant women were selected to test their urinary iodine in each sub-districts(towns).Results The goiter rate of 8-10 aged children was 0.9%.The medians of urinary iodine concentration of 8-10 aged children and pregnant women were 171.40 μg/L and 126.53 μg/L,respectively.The consumption rates of qualified iodized salt were 72.52%.The median of iodine content concentration in salt was 24.8 mg/kg.Conclusion In Shanghai,the goiter rate of children was lower than that of the national standard.Iodine nutritional status of children was proper,but the pregnant women were deficient in iodine nutrition.Therefore,iodized salt concentration should be improved to the optimal level.Health education for pregnant women should be strengthened.

Comprehensive assessment on iodine nutrition and dietary iodine intake among Shanghai residents / 上海预防医学

Objective To assess the changes in iodine status and dietary iodine intake among Shanghai residents since common salt was iodized 20 years ago.Methods As-CE Catalysis spectrophotometry was used to determinate the urine iodine level in school-age children,pregnant women,wet nurse and adults of Shanghai between 1995 and 2015.B ultrasonic was used to determinate the thyroid volume of school-age children.And then the goiter rate was calculated.Direct titration or arbitration methods were applied to detect the household salt iodine level quantitatively.The survey was conducted by using 3 days 24-hour dietary questionnaire and condiment weighing methods to analyze the level of iodine intake and sources for the cases of all iodized salt consumption and all consumption of non-iodized salt.Results The median urine iodine concentration (UIC) of school age children was 72.3 μg/L in 1995,rose to 214-231 μg/L from 1997-1999,and then became stable between 100 μg/L and 200 μg/L since 2002.The goiter rate was below 5% among children aged 8-10 from 1995-2015 in Shanghai.The median urine iodine of pregnant women was between 126.5 μg/L and 139.8 μg/L.The median UIC of other populations were all between 100 μg/L and 200 μg/L: with adults,lactating women,infants and young children and women of childbearing age,the median urinary iodine was 138.4,123.1-131.1,150.1 and 125.6 μg/L.The qualified iodized salt at household consumption rate was 90% from 2001 to 2009,the percentage declined year by year from 2010.In the cases of all taking iodine salt,the median iodine intake volume for male aged 7-10,11-13,14-18 and over 18 was 200.3,235.5,252.7 and 215.4 μg/L;women aged 7-10,11-13,14-18 and over 18 was 193.0,213.8,208.3 and 186.1 μg/L.The contribution rate of iodine salt in the diet were 51.6%-54.1% and 49.1%-53% in men and women.Kelp,seaweed and fish and shrimp on the contribution of iodine are 7.6%-16.6% and 4.5%-7.4%.Conclusion In the past about 20 years,iodine nutritional status of residents in Shanghai has stabilized totally in a appropriate and safe level.However,the iodine nutrition of pregnant women was insufficient.As iodized salt is the major source of dietary iodine in coastal areas,it is still necessary to continue the policy of universal salt iodized in Shanghai to ensure residents'' needs for iodine and control the risk of iodine deficiency.

Progress of gene editing technologies and prospect in traditional Chinese medicine / 中国中药杂志

Gene editing is a kind of technologies that makes precise modification to the genome. It can be used to knock out/in and replace the specific DNA fragment, and make accurate gene editing on the genome level. The essence of the technique is the DNA sequence change with use of non homologous end link repair and homologous recombination repair, combined with specific DNA target recognition and endonuclease.This technology has wide range of development prospects and high application value in terms of scientific research, agriculture, medical treatment and other fields. In the field of gene therapy, gene editing technology has achieved cross-time success in cancers such as leukemia, genetic disorders such as hemophilia, thalassemia, multiple muscle nutritional disorders and retrovirus associated infectious diseases such as AIDS and other diseases. The preparation work for new experimental methods and animal models combined with gene editing technology is under rapid development and improvement. Laboratories around the world have also applied gene editing technique in prevention of malaria, organ transplantation, biological pharmaceuticals, agricultural breeding improvement, resurrection of extinct species, and other research areas. This paper summarizes the application and development status of gene editing technique in the above fields, and also preliminarily explores the potential application prospect of the technology in the field of traditional Chinese medicine, and discusses the present controversy and thoughts.

Pregnane receptor gene polymorphisms, pathogenic bacteria distribution and drug sensitivity, and TCM syndrome differentiation in patients with cholelithiasis

OBJECTIVE@#To investigate the distribution of pathogens and drug resistance in bile and the association between the pregnane X receptor (PXR) gene polymorphisms, traditional Chinese medicine (TCM) syndromes and the risk of cholesterol gallstone disease (CGD).@*METHODS@#A total of 392 samples were enrolled in this study from January 2014 to February 2015, among which 192 patients were with CGD, and 200 samples were healthy. Strains were isolated and susceptibility testing was the disk diffusion method susceptibility testing. The patients were divided into hepatochlic hygropyrexia, stagnation of liver-qi, and the accumulation of damp. The PXR gene polymorphisms were analyzed by polymerase chain reaction-restriction fragment length polymorphism. The association between the PXR gene polymorphisms and the risk of CGD was examined by logistic regression analysis.@*RESULTS@#A total of 192 cases were detected in 230 of bile culture pathogens, including Gram-negative bacteria 133 (57.83%), Gram-positive bacteria 76 (33.04%), and fungi 21 (9.13%). The top five pathogens were Escherichia coli, Klebsiella pneumoniae, Enterococcus faecalis, Candida albicans, and Enterococcus feces, of which 110 cases was of single infection, 48 cases of mixed infection of two strains, eight cases of mixed infection of three bacteria. Among 59 Escherichia coli, the yield extended-spectrum beta-lactamases had 40 (67.80%). The hepatochlic hygropyrexia was the most TCM syndrome, followed by stagnation of liver-qi, and the accumulation of damp was least. Different pathogens and the rs6785049 genotypes distributed differently in cholelithiasis patients with different TCM syndromes (P < 0.05). In hepatochlic hygropyrexia patients the Gram-negative bacteria was most. There was significant differences between CGD group and control group in rs6785049 (P < 0.001). Comparison with wild-type portable GG, GA genotype increased the risk of the occurrence of gallstones (OR = 0.40, 95%CI: 0.16-0.79); likewise, carrying the GA+AA genotype also increased the risk (OR = 0.38, 95%CI: 0.19-0.81). There was no significant differences in rs2276707, rs3814055 site polymorphic loci alleles in CGD group and control group.@*CONCLUSIONS@#In the treatment of cholelithiasis, bile samples should be collected for bacterial culture and sensitivity test, and drugs should be strictly chosen based on the results. The rs6785049 polymorphisms in PXR gene may increase the risk of gallstones ontogeny, and gallstones can be early detected and prevented by detecting genotypes. rs6785049 polymorphisms in PXR gene may has relationship with TCM syndromes.

Identification of chemical constituents in Scrophulariae Radix by HPLC-IT-TOF-MS / 中国中药杂志

This experiment was performed to establish a qualitative analysis on chemical constituents of Scrophulariae Radix by HPLC-ESI-IT-TOF-MS．The analysis was conducted on a C₁₈ column (Kromasil 100-5, 4.6 mm×250 mm, 5 μm) with 0.1% formic acid-acetonitrile as the mobile phase for gradient elution; ESI ion source was used for mass spectra, and data were collected innegative and positive modes. The results showed that 64 compounds from Scrophulariae Radix had been identified by analyzing negative ion mass data including element composition and by comparing with data from literature. Two new compounds (4-hydroxy-6-O-methylcatalpol and acetylangoroside C) and seventeen known compounds were detected from Scrophulariae Radix for the first time. Seventeen known compounds included twelve iridoid glycosides, three phenylpropanoid glycosides and two other kind compounds. This study will provide chemical basis for elucidation of the effective substance in the Scrophulariae Radix.

Pregnane receptor gene polymorphisms, pathogenic bacteria distribution and drug sensitivity, and TCM syndrome differentiation in patients with cholelithiasis

Objective: To investigate the distribution of pathogens and drug resistance in bile and the association between the pregnane X receptor (PXR) gene polymorphisms, traditional Chinese medicine (TCM) syndromes and the risk of cholesterol gallstone disease (CGD). Methods: A total of 392 samples were enrolled in this study from January 2014 to February 2015, among which 192 patients were with CGD, and 200 samples were healthy. Strains were isolated and susceptibility testing was the disk diffusion method susceptibility testing. The patients were divided into hepatochlic hygropyrexia, stagnation of liver-qi, and the accumulation of damp. The PXR gene polymorphisms were analyzed by polymerase chain reaction-restriction fragment length polymorphism. The association between the PXR gene polymorphisms and the risk of CGD was examined by logistic regression analysis. Results: A total of 192 cases were detected in 230 of bile culture pathogens, including Gram-negative bacteria 133 (57.83%), Gram-positive bacteria 76 (33.04%), and fungi 21 (9.13%). The top five pathogens were Escherichia coli, Klebsiella pneumoniae, Enterococcus faecalis, Candida albicans, and Enterococcus feces, of which 110 cases was of single infection, 48 cases of mixed infection of two strains, eight cases of mixed infection of three bacteria. Among 59 Escherichia coli, the yield extended-spectrum beta-lactamases had 40 (67.80%). The hepatochlic hygropyrexia was the most TCM syndrome, followed by stagnation of liver-qi, and the accumulation of damp was least. Different pathogens and the rs6785049 genotypes distributed differently in cholelithiasis patients with different TCM syndromes (P < 0.05). In hepatochlic hygropyrexia patients the Gram-negative bacteria was most. There was significant differences between CGD group and control group in rs6785049 (P < 0.001). Comparison with wild-type portable GG, GA genotype increased the risk of the occurrence of gallstones (OR = 0.40, 95%CI: 0.16-0.79); likewise, carrying the GA+AA genotype also increased the risk (OR = 0.38, 95%CI: 0.19-0.81). There was no significant differences in rs2276707, rs3814055 site polymorphic loci alleles in CGD group and control group. Conclusions: In the treatment of cholelithiasis, bile samples should be collected for bacterial culture and sensitivity test, and drugs should be strictly chosen based on the results. The rs6785049 polymorphisms in PXR gene may increase the risk of gallstones ontogeny, and gallstones can be early detected and prevented by detecting genotypes. rs6785049 polymorphisms in PXR gene may has relationship with TCM syndromes.

Clinical study on combination of homoharringtonine, Ara-C and idarubicin induction for treatment of newly diagnosed acute myeloid leukemia patients / 中国实验血液学杂志

The purpose of this study was to assess the efficacy and toxicity of HAI regimen [(homoharringtonine 2.5 mg/(m(2)×d), days 1 - 7; cytarabine 150 mg/(m(2)×d), days 1 - 7; idarubicin 9 mg/(m(2)×d), days 1 - 7)] for induction treatment of newly diagnosed acute myeloid leukemia (AML) (except acute promyelocytic leukemia). 31 patients with newly diagnosed AML, aged 39 (14 - 58) years, were enrolled in this clinical study. The complete remission (CR) rate, especially after one course, the overall survival (OS) rate and relapse free survival (RFS) rate were estimated. The outcomes were compared between different prognostic groups according to World Health Organization (WHO) classification, genetics and initial WBC count. Safety was evaluated using standard WHO criteria. The results showed that 26 patients (84%) achieved CR after 1 course of induction. The CR rate for the patients with favorable, intermediate and unfavorable cytogenetics was 90%, 88% and 60% respectively. All 7 patients with a high initial WBC count (≥ 100×10(9)/L) obtained CR, while 19 out of 24 without a high initial WBC count obtained CR. With a median follow-up of 15(range 2-56) months, the estimated 3-year OS rate for all patients and the patients with CR was 44% and 52% respectively. The 3-year RFS rate was 51%. The patients receiving induction chemotherapy died of the chemotherapy. Profound myelosuppression was seen in all patients after the HAI induction with the median duration of neutropenia (ANC < 0.2×10(9)/L) of 16 (6 - 24) days. As the most common toxicity, severe infections (grade III-IV) involved in all the patients and the duration of febris was 6 (1 - 36) days. The incidence of septemia and invasive fungus infection were 19.4% and 45.2% respectively. The incidence of non-infection fever, increased glutamic-pyruvic transaminase (GPT), diarrhea, increased bilirubin and oral cavity mucositis were 6.5%, 6.5%, 3.2%, 3.2%, 3.2% respectively, as the more frequent severe non-hematological toxicities. It is concluded that HAI regimen is a high efficient induction schedule for the newly diagnosed AML, and archive the higher CR rate after one course than DNR/Ara-C standard induction regimen. Side effects are acceptable, except severe infection.

Analysis on processing mechanism of calamine / 中国中药杂志

<p><b>OBJECTIVE</b>To study processing method and mechanism of Calamine.</p><p><b>METHOD</b>Thermogravimetry analysis method and nano-technology were adopted to analyze and synthesize the components in Calamine, Tetracycline was took as the comparison drug to determine the antibacterial activity of Calamine and its components.</p><p><b>RESULT</b>A part of zinc carbonate in Calamine was decomposed into zinc oxide when processing, and the particle size was smaller than before. The antibacterial activity of Calamine is decided by the content and particle size of zinc oxide, and has nothing with zinc carbonate. The more content and the smaller particle size of zinc oxide, the more powerful antibacterial activity of Calamine.</p><p><b>CONCLUSION</b>The content and the particle size of zinc oxide can be the important targets in the processing of Calamine.</p>

Studies on Apoptosis of Host Cells Induced by Foot-and-Mouth Disease Virus / 中国病毒学

Apoptosis of PK-15 cells induced by Foot-and-Mouth Disease Virus (FMDV) in vitro was reported in this paper. Typical cell apoptosis was detected by use of Hoechst 33258 fluorescence probe, agarose gel electrophoresis and in situ end-labeling (TUNEL). After PK-15 cells were infected by titration of 4.8 lg TCID50/mL FMDV for 32 h, apoptosis characteristics of nuclear condensation, fragmentation, accompanied by apoptotic bodies formation (Hoechst 33258 staining), 180-200 integer-fold sized pieces DNA Ladders (agarose gel electrophoresis) and strong green fluorescence dots (TUNEL) were all exhibited, and cell apoptosis was approximately 20%. In addition, the quantitative analysis of apoptosis in PK-15 cells induced by FMDV showed that apoptosis was correlated with infection of virus, and it was also time-dependent. Results indicate that FMDV can induce apoptosis of host cells and apoptosis plays an important role in the cytopathogencity effect of FMDV.