Objective To investigate the expression of histone acetylated H3 and H4, methylated H3K4 and H3K9 in diffuse large B-cell lymphoma (DLBCL). Methods The expression of histone acetylated H3 and H4, methylated H3K4 and H3K9 were examined by SP immunohistochemistry technique in lymphoid tissue of 40 cases with DLBCL and 16 cases with proliferative lymphadenitis. Results The expression of histone acetylation of H3 and H4 were lower than that in proliferative lymphadenitis. Histone methylated H3K4 was lower in expression and H3K9 was in higher expression. There was a positive correlative expression between the global histone acetylation of H3 and H4, the global histone acetylation of H3, H4 and histone methylation of H3K4. Conclusion Improper modification of histone acetylations and methylations may play an important role in pathogenesis in DLBCL.

Objective To investigate the relationship between the indexes change of lactate dehydrogenase(LDH),serum tumor associated material(BXTM),β2-microglobulin(β2-MG),C-reactive protein(CRP) and D-dimer(DD) with lymphoma cell bone marrow infiltration(BMI) degree in the patients with non-Hodgkin's lymphoma(NHL).Methods Seventy-four cases of initially treated NHL were retrospectively analyzed and divided into the bone marrow invasion group(BMI,26 cases),lymphoma cell leukemia group(LMCL,31 cases) and non-BMI group(N-BMI,17 cases).The related indexes levels in each group were detected.ROC curve was drawn and analyzed.Results The levels of LDH,β2-MG,CRP and DD levels in the BMI group and LMCL group were higher than those in the N-BMI group(P＜0.05).Based on the ROC curve analysis,the optimal diagnostic cut-off points of each index in BMI were determined.The CRP and LDH had good sensitivity(100.00 ％),specificity(80.00 ％-100.00 ％) and diagnostic accuracy(80.00 ％ 100.00％).In the LMCL group,the diagnostic accuracy of DD,BXTM and β2-MG was 63.30 ％-100.00％.Conclusion The changes of LDH,CRP,β2-MG and DD in the patients with NHL are consistent with the BMI severity of lymphoma cells,which has a good clinical value in staging,curative effect judgment and prognosis.

Objective To explore the clinical new ways to repair the soft tissue defect of upper lip.Methods The soft tissue defect of upper lip caused by various reason were repaired with the buccal region of nasolabial groove flap.The size of flap was designed based on the range of soft tissue defect and located in the buccal region along nasolabial groove.The maximum scale of flaps between the length and width were 2∶1 and slit to the SMAS layer.The soft tissue defect of upper lip was repaired by direct vicinity aversion of the flap.The wound after the flap diversion was direct sut in favour of propulsion of the flap and relief the tension of flap pedicle.Results The flaps completely survived in 15 cases without obviously scar accrementition.The cosmetic result were satisfactory.Conclusion The buccal region of nasolabial groove flap is characterized by simple designation,easy dissection,reliable blood supply with the vascular net of fascia without well-known blood vessel damaged and repaired by direct vicinity aversion.Therefore,it is an ideal new method to repair the soft tissue defect of upper lip.

OBJECTIVETo analyze the differences between the oral microbiota of monozygotic and dizygotic twins by polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE).

METHODSA total of 20 pairs of twin children were included in this study, in which 10 pairs were monozygotic (MZ) twins, and 10 pairs were dizygotic (DZ) twins. Of the 20 pairs, 10 pairs of twins had primary dentition, and 10 pairs had mixed dentition; 17 children had caries, and 23 children had no caries. Genomic DNA was extracted from saliva samples. The 16s rRNA was amplified and analyzed by PCR-DGGE. The PCR-DGGE band number and Shannon index were calculated.

RESULTSCluster analysis showed high similarity in the oral bacterial community seen in co-twins. However, no significant difference was seen between MZ and DZ twins. In the primary dentition, the PCR-DGGE band number and Shannon index of children with caries (11.00 +/- 1.56, 1.05 +/- 0.36) were lower than those of children without caries (14.00 +/- 2.74, 1.44 +/- 0.37) (P < 0.05). In mixed dentition, the PCR-DGGE band number and Shannon index of children with caries (11.88 +/- 4.05, 1.18 +/- 0.36) were lower than those of children without caries (14.31 +/- 5.71, 1.28 +/- 0.47), but the differences were not statistically significant (P > 0.05).

CONCLUSIONEnvironmental factors may have a stronger effect on the constitution of oral microbiota in children compared with genetic factors. Children without caries may have a richer microbial diversity compared with children with caries.

Bacteria ; Child ; Denaturing Gradient Gel Electrophoresis ; Dental Caries ; Female ; Humans ; Male ; Microbiota ; Mouth ; microbiology ; Polymerase Chain Reaction ; RNA, Ribosomal, 16S ; Saliva ; Twins, Monozygotic

Objective To approach on the expression pattern of MMP-2 and E-Cadherin in the effects of gastrin on gastric canc-er cells ,so as to investigate their role in the metastasis and invasion of gastric cancer .Methods Genomic DNA modified by sodium bisulfite was used as a template .RQ-MSP detect the methylation status of the gene promoter .The relative amount of Methylation status was performed with comparative threshold cycle (2- △ t ) method .Results MMP-2 and E-Cadherin genes in gastric cancer cells were at hemimethylated status in gastrin before and after the intervention .Gastrin can reduce the methylation levels of MMP-2 gene(P<0 .05) ,but the could be effected by proglumide receptor antagonist to some certain extent (P>0 .05) .Gastrin can pro-mote the methylation levels of MMP-2 gene ,but proglumide decrease that effect (P<0 .05) .Conclusion Gastrin plays a certain role in the biological behavior of gastric cancer impact by changeing on the expression pattern of MMP-2 and E-Cadherin in the effects of gastrin on gastric cancer cells .

Objective To compare cognitive function and alexithymia between the schizophrenic patients treated with chlorpromazine and those treated with clozapine. Methods The patients with schizophrenia in stable condition that received maintenance treatment either with chlorpromazine or clozapine and normal control subjects were recruited (n=24 per group). Neuropsychological tests, including Digit Vigilance Test, Controlled Oral Word Association Test, Trail Making Test-A&B (TMT-A&B), Animal Naming Test, Stroop Color-Word Test, Block Design and Spatial Span Test were used to assess the participant’s cognitive function. The twenty-item Toronto Alexithymia Scale (TAS-20) were used to evaluate the participant’s alexithymia. Results The significant differences were found between the patients and the controls in all items of cognitive function and all factor scores of TAS-20 (P<0.05). There were no significant differences in all items of cognitive function and all factor scores of TAS-20 between chlorpromazine group and clozapine group (P>0.05). Multivari? ate linear regression analysis showed that in the clozapine group, attention function associated with the total score of TAS (β=-0.20, P<0.05), executive function associated with TAS factor 1 (β=-0.26, P=0.03), spatial function associated with TAS factor 2 (β=-0.24, P<0.01). In the chlorpromazine group, attention function associated with TAS factor 2 (β=-1.24, P<0.01), executive function associated with TAS factor 2 (β=-0.33, P=0.02). Conclusions Patients with schizophrenia in maintenance period have widely cognitive impairment and alexithymia, both of which are related to each other.

Objective To elucidate the features of clinicopathology and mutation in Fabry disease complicated with thin basement membrane nephropathy (TBMN), and to investigate the kindred. Methods Data of clinicopathology and gene mutation of a female patient of Fabry disease complicated with TBMN admitted to the Department of Nephro]ogy in our hospital were analyzed. Members of her kindred were investigated simultaneously. Results Proband was a 41-year-old Chinese woman who presented syndrome of Fabry disease and TBMN including angiokeratomas, chronic pain, tinnitus, vertigo, left ventricular hypertrophy and nephropathy as proteinuria, microscopic hematuria and hypertension. A percutaneous renal biopsy was performed on the proband, which was consistent with FSGS and vaculization of podocytes by light microscopy.Electron microscopy showed concentric lamellated inclusions in some podocytes. Diffuse thinning of glomerular basement membrane (GBM) with a mean thickness of (216±31) nm was found. The diagnosis of TBMN with suspected Fabry disease was identified. Family screening showed that her daughter had microscopic hematuria, tinnitus and neuropathic pain. One of her sisters only had microscopic hematuria. The activity of α-galacsidase A (α-Gal A )enzyme in the proband and her daughter was 33 units and 75 units respectively (the normal range is 100 to 500 units). They all carried the novel GLA mutation 1208 ins 21 bp and COL4A3 SNP c: 3627G＞A(p:M1209I). While her sister who only had microscopic hematuria just carried the variant of COL4A3 gene-c:3627G ＞A (p:M1209I), and had the normal activity of α-Gal A with no mutation of GLA.Conclusion TBMN should be considered in the patients of Fabry disease with the condition of benign familial hematuria.

Objective To observe the effects of Yuanzhi San (YZS) on the ethology and cerebral acetylcholinesterase(AchE) activity of mouse model of memory disorder induced by scopolamine. Methods Sixty mice were randomly divided into six groups, namely blank control group, model group, positive medicine group, and low-dose, middle-dose and high-dose YZS groups. Except for the blank control group and model group were given the normal saline, the mice in other groups were administered with the corresponding drugs for 10 days. And then, mice in the medication groups were given subcutaneous injection of scopolamine in the dose of 3mg/kg to induce memory disorder model. Morris water maze test and step-down test were adopted for the observation of the learning-memory ability of the mice, and at the end of the tests, the activity of AchE in mouse cerebral cortex was measured by a biochemical method. Results Compared with the model group, escape latency was decreased, and retention time and swimming distance in the effective area in Morris water maze test were prolonged in YZS groups (P<0.05); latency in step-down test was also prolonged (P<0.05). YZS had an effect on decreasing AchE activity in the cerebral cortex of model mice (P < 0.05 compared with the model group). However, the differences were insignificant among the medication groups(P>0.05). Conclusion YZS exerts certain effect on improving learning-memory ability of memory disorder mice induced by scopolamine , and the mechanism might be related with the inhibition of AchE activity in the cerebral cortex of model mice.

Objective:To analyze the perinatal outcomes of unicornuate uterus pregnancy.Methods:The clinical data of patients with unicornuate uterus pregnancy who delivered between January 2009 and December 2018 in Women′s Hospital, School of Medicine, Zhejiang University, were reviewed retrospectively. Live birth was defined as the delivery of a baby after at least 28 weeks gestational age. Ninety-eight patients were diagnosed as unicornuate uterus, while 4 cases of stillbirth and 4 cases of twin pregnancy and 10 cases of incomplete data were excluded, and 80 patients with unicornuate uterus were included in the observation group. By matching the age, gestational age and delivery mode, 160 patients were randomly selected as the control group. The perinatal outcomes such as delivery mode, cesarean section indication sequence, postpartum hemorrhage, vaginal delivery time, newborn birth weight and Apgar score were analyzed retrospectively.Results:In the unicornuate uterus group, there were 10 cases of vaginal delivery and 70 cases of cesarean section, among which the primary indication of premature cesarean section and full-term cesarean section was abnormal fetal position, accounting for 7/18 and 50.0% (26/52), respectively. While in the control group, there were 20 cases of vagianl delivery and 140 cases of cesarean section, among which the main indications of premature cesarean section were placenta previa, intrahepatic cholestasis during pregnancy and scar uterus, accounting for 19.4% (7/36), and the primary indication of full-term cesarean section was abnormal fetal position, accounting for 23.1% (24/104). The postpartum hemorrhage of the vaginal delivery in the unicornuate uterus group and the control group was (319±161) and (261±152) ml, respectively, and the postpartum hemorrhage of the cesarean section delivery was (257±106) and (272±123) ml, respectively. There were no significant differences between the two groups statistically (all P>0.05). The time of the first stage of labor was (502±386) and (465±296) minutes in the unicornuate uterus group and the control group, and the time of the second stage was (74±73) and (47±30) minutes, respectively. There were no significant differences between the two groups statistically (all P>0.05). The neonatal birth weight in the unicornuate uterus group and the control group was (3 018±548) and (3 080±562) g, respectively, and there was no significant difference between the two groups statistically ( P=0.42). According to preterm birth and different pre-pregnancy body mass index, the neonatal birth weight of the two groups were compared, and the differences were not statistically significant (all P>0.05). One-minute Apgar score of premature in the unicornuate uterus group and the control group were 10 (9.25-10) and 10 (10-10), 5-minute Apgar score were 10 (10-10) and 10 (10-10), respectively. One-minute Apgar score of full-term in the unicornuate uterus group and the control group were 10 (10-10) and 10 (10-10), 5-minute Apgar score were 10 (10-10) and 10 (10-10), respectively. There were no statistically significant differences between the two groups, respectively (all P>0.05). Conclusions:The patients with unicornuate uterus could give birth vaginally in the absence of other operation indications. The perinatal outcome of women with unicornuate uterus is similar to that of women with non-uterine abnormalities. It is found that the abnormal fetal position with unicornuate uterus is the main reason for cesarean section.

Objective:To evaluate the methodological quality and reporting quality of clinical practice guidelines or consensuses in the field of Chinese pancreatic diseases from 2016 to 2021, and provide reference for formulating clinical practice guidelines and consensuses in this field.Methods:VIP, Wanfang , CNKI and CBM databases were searched for articles published from January 2016 to March 2021. The main index terms were " pancreas" , " guideline" , " consensus" , and the supplementary index terms were " pancreatitis" , " pancreatic cancer" , " pancreatic head cancer" . Two researchers independently selected the literature. The appraisal of guidelines for research and evaluation (AGREE-China) was utilized to assess the methodological quality of the guidelines or consensuses, and the reporting items for practice guidelines in healthcare (RIGHT) tool was used to assess the reporting quality.Results:A total of 14 literature were included, including 7 literature on pancreatic cancer, 3 literature on acute pancreatitis, 1 literature on chronic pancreatitis and 3 literature on others. The results of the assessment by the AGREE-China tool showed that there were no document with a total score greater than or equal to 60.0 points, two with 40.0 to 59.9 points, eleven with 20.0 to 39.9 points, and one with less than 20.0 points. Among the results of RIGHT list, basic information was reported the highest(72.62%) and funding and declaration was the lowest(0).Conclusions:The methodological and reporting quality of the guidelines or consensuses on pancreatic disease in China from 2016 to 2021 are generally not high. In the process of developing domestic guidelines or consensuses on pancreatic diseases, the guideline developer should refer to AGREE-China and RIGHT to improve the quality of clinical practice guidelines or consensuses.