OBJECTIVETo establish the quantitative method of notoginsenoside R1, ginsenoside Rg1 and Rb1 in Radix Notoginseng and its preparation Xuesaitong injection by HPLC-ELSD.

METHODThe column was packed with 5 microm Diamonsil C18 stationary phase. The mobile phase consisted of acetonitrile-water, eluted in gradient mode. The temperature of drift tube was 105 degrees C and the nebulizer nitrogen flow rate was 2.9 L x min(-1).

RESULTThe linear ranges of the three components were 0.456-2.25 microg, 1.47-7.38 microg and 1.20-6.03 microg respectively. The average recoveries of the three components in Radix Notoginseng were 97.1% (RSD 1.9%), 96.8% (RSD 2.0%), 97.0% (RSD 2.2%) respectively; in Xuesaitong Injection were 98.7% (RSD 1.9%), 98.5% (RSD 1.8%), 98.1% (RSD 1.4%) respectively.

CONCLUSIONIt was proved that the method was reliable, simple, and precise, that could be used for quality control.

Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; Ginsenosides ; analysis ; Injections ; Panax ; chemistry ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Quality Control

Objective To investigate the effect of transplantation of allogeneic bone marrow hematopoietic cells(HCs)and mesenchymal stem cells(MSCs)on experimental colitis(EC)in rats.Methods The HCs and MSCs obtained from SD male rats were cultured and expanded in vitro.In experiment 1 and 2 groups,HCs were labeled with bromodeoxyuridine(BrdU)and MSCs were obtained using the tube wall attach technique,respectively.Seventy-two female rats were infused with trinitrobenzene sulfonic acid(TNBS)to induce EC models.After 24 hours,HC or MSC suspensions were injected into the rats in experimental 1(n=18)and 2(n=18)groups via caudal veins,respectively.Control animals were injected with isotonic saline.The whole colon was removed on day 7,14 and 21 after transplantation and examined histopathologically.BrdU labeled HCs were tested with immunohistochemical staining and MSCs were detected for sex-determining gene(sry)by PCR.Results EC models were successfully established.The HCs or MSCs grew rapidly in the culture suspension.On day 7,14 and 21 after transplantation,the BrdU immunoreactive cells were detected in the colon(6/6),and the positive expression of the sry gene was found in 1/6,2/6 and 3/6,respectively.No positive labeled cell was found in controls.There was no significant improvement in histopathological scores on the colon in two experimental groups compared with the controls.Conclusions Allogeneic HCs and MSCs may localize in the colon of EC models.The ability of localization is higher in HCs than MSCs.The transplantation of HCs and MSCs can not obviously improve histopathologically.

Abstract: The loop-mediated isothermal amplification (LAMP) technique is a technique for the specific and efficient amplification of target fragments at a constant temperature using two pairs of specially designed primers and a strand displacement activity DNA polymerase. LAMP technique is a simple, rapid, specific, sensitive and cost-effective nucleic acid amplification method, and therefore has a promising future in the field rapid detection of Mycobacterium tuberculosis and grassroots applications. In this review, the basic principles and characteristics of the LAMP technique, the main molecular markers for the diagnosis of tuberculosis, and the use of different molecular markers and various types of novel techniques in the diagnosis of pulmonary tuberculosis, extrapulmonary tuberculosis, and drug-resistant tuberculosis were described. The LAMP technique has been widely used in the diagnosis of tuberculosis with high sensitivity and specificity, but the technique still has some shortcomings. This paper reviews the progress of its application in tuberculosis in recent years and provides an outlook on its development, with a view to providing a rational research direction for rapid diagnosis of tuberculosis in a resource-limited environment.

Allogeneic hematopoietic stem cell transplantation is the only curative therapy for severe beta-thalassemia. This time, the experience of utilizing HLA 2-loci mismatched sibling cord blood transplantation (CBT) in a child with severe beta-thalassemia was firstly reported in our country. A 3-year-male patient had been diagnosed with severe beta-thalassemia at 6 months of age (HbF 86.6%, HbA1 1.7%, HbA2 1.7%, beta globin gene mutation CD17, A-->T/IVS-II-654, C-->T). The patient's HLA typing was A 24,11, B 58,35 and DRB1 03,15. During a subsequent maternal pregnancy. The prenatal diagnosis for thalassemia and prenatal HLA typing analysis were performed on 18 weeks of pregnancy. The results indicated that the male fetus was a heterozygote (beta globin gene mutation N/CD17, A-->T), HLA typing was A 24,11, B 58,51 and DRB1 03,12. 120 ml cord blood was collected at time of delivery, the total numbers of nucleated cells, CFU-GM and CD34(+) cells were 1.830 x 10(9), 16.653 x 10(5) and 3.11 x 10(6), respectively. A new conditioning regimen including: hypertransfusion, continuous i.v. desferrioxamine, busulfan, cyclophosphamide, antithymocyte globulin plus hydroxyurea and fludarabine. GVHD prophylaxis comprised cyclosporin A and mycophenolate mofetil. The viability of cord blood at the time infusion was 92%, The total numbers of nucleated cells, CFU-GM and CD34(+) cells in the transfused cord blood were 12.06 x 10(7)/kg, 1.098 x 10(5)/kg, and 2.04 x 10(6)/kg, respectively. Results showed that the patient's clinical course after cord blood transplantation was unremarkable. Acute GVHD grade I developed on day 15, methylprednisolone 2 mg/kg was given to cure. Neutrophil engraftment (ANC > 0.5 x 10(9)/L) on day 17, platelet engraftment (> 50 x 10(9)/L) on day 50. The patients became independent from red blood cell transfusion since day 80 (when his hemoglobin level kept > 12.5 g/L). His beta globin gene mutation and HLA typing were all the same as the donor's analyzed on day 60 and 200. There was also a switch in blood group from A pre-transplant to O post-transplant. It is concluded that the new conditioning and GVHD prophylaxis regimens allow a successful engraftment in this case. This observation may contribute in developing UCBT as an alternative when matched sibling donors are not available.
Child, Preschool ; Cord Blood Stem Cell Transplantation ; adverse effects ; Globins ; genetics ; Graft vs Host Disease ; etiology ; HLA Antigens ; immunology ; Histocompatibility ; genetics ; immunology ; Histocompatibility Testing ; methods ; Humans ; Male ; Mutation ; Siblings ; Transplantation Tolerance ; immunology ; Transplantation, Homologous ; beta-Thalassemia ; therapy

OBJECTIVETo investigate the clinicopathological significance of positive CK7 expression in human colorectal carcinoma (HCC).

METHODSImmunohistochemistry was used to detect CK7 and CK20 protein expressions in 68 cases of HCC, 20 cases of canalicular adenoma (CA), 5 cases of serrated adenoma (SA) and 20 cases of hyperplastic polyps (HP).

RESULTSThe positivity rate of CK20 expression was 89.7% in HCC, and 100% in CA, SA and HP. In HCC, the expression rate of CK7 (39.7%) was not correlated with Dukes' classification, differentiation and tumor location. CK7 positivity rate in colon cancer was 35.7% (15/52) and 42.3% (11/26) in rectal cancer. CK7 expression was negative in CA. CK7 positivity rate in SA was 49% and 30% in HP.

CONCLUSIONCK7 is a possible marker for colorectal carcinogenesis from HP to SA, and ultimately to HCC, and examination of the colorectal polypoid lesions for CK7 expression can be significant for estimating the colorectal polypous cancerization.

Colorectal Neoplasms ; genetics ; metabolism ; pathology ; Cytoplasm ; metabolism ; pathology ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Immunohistochemistry ; Intestinal Mucosa ; metabolism ; pathology ; Keratin-7 ; metabolism ; Male ; Middle Aged

OBJECTIVETo study the effects of Bu Yang Huan Wu Decoction on astrocytes after cerebral ischemia and reperfusion.

METHODCerebral ischemia model in gerbils was produced by ligating bilateral common carotid artery. The dynamic expressin of GFAP were determined by immunochemistry after cerebyal ischemia for 15 min followed by reperfusion for 24 hours and 48 hours.

RESULTGFAP positive reactions reached a peak after cerebral ischemia for 15 min followed by reperfusion for 24 hours. Bu Yang Huan Wu Decoction decreased the expression. GFAP positive reactions decreased after cerebral ischemia for 15 min followed by reperfusion for 48 hours, Bu Yang Huan Wu Decoction increased the expression.

CONCLUSIONThe regulation of Bu Yang Huan Wu Decoction on astrocytes after cerebral ischemia and reperfusion may be related to repairing process after cerebral ischemia.

Animals ; Astrocytes ; drug effects ; Brain Ischemia ; complications ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Female ; Glial Fibrillary Acidic Protein ; metabolism ; Hippocampus ; metabolism ; Male ; Plants, Medicinal ; chemistry ; Reperfusion Injury ; etiology ; metabolism ; pathology

Child, Preschool ; Cyclophosphamide ; therapeutic use ; Cyclosporine ; therapeutic use ; Female ; Humans ; Infant ; Male ; Mycophenolic Acid ; analogs & derivatives ; therapeutic use ; Nephrotic Syndrome ; complications ; drug therapy ; pathology

Objective To investigate the predictive value of serum ferritin(SF)and glycated haemoglobin(HbA1c)in the occurrence of adverse perinatal outcomes in pregnant women with gestational diabetes melli-tus(GDM).Methods A total of 97 pregnant women with GDM who underwent antenatal examination and gave birth in Qionglai Maternal and Child Health Hospital from March 2021 to February 2023 were selected as observation group,and another 116 healthy pregnant women who came to the hospital for prenatal examina-tion were concurrently selected as control group.The fasting blood glucose(FBG),SF and HbA1c were com-pared between two groups,and the clinical characteristics,SF and HbA1c levels were compared among women with different perinatal outcomes.Then the influencing factors of adverse perinatal outcomes in GDM preg-nant women were identified,and the value of serum SF and HbA1c in predicting adverse perinatal outcomes in GDM pregnant women was determined.Results FBG,triglycerides(TG),total cholesterol(TC),low-density lipoprotein cholesterol(LDL-C),SF,and HbA1c were elevated in observation group compared to control group,and the differences were statistically significant(P＜0.05).FBG,TG,TC,SF,and HbA1c were higher in poor perinatal outcome group than in good perinatal outcome group,and the differences were statistically significant(P＜0.05).Multivariate Logistic regression analysis denoted that FBG,TG,TC,SF and HbA1c were independent influencing factors for adverse perinatal outcomes(P＜0.05).Receiver operating character-istic(ROC)curve analysis indicated that the area under the curve of single detection and combined detection of SF and HbA1c in predicting the adverse perinatal outcomes in GDM were 0.741(95％CI:0.638-0.844),0.685(95％CI:0.570-0.800)and 0.874(95％CI:0.797-0.951),respectively.Conclusion SF and HbA1c are abnormally elevated in pregnant women with GDM,and SF combined with HbA1c has certain predictive value for perinatal outcomes of pregnant women with GDM.

Objective To investigate the value of MR diffusion weighted imaging (DWI) in the pathological grading of glioma. Methods Thirty patients who were confirmed pathologically with glioma were examined by MR DWI. The values of apparent diffusion coefficient (ADC) and relative ADC (rADC) were measured. All those values were analyzed statistically. Results The 30 glioma patients were divided into lower-grade and higher-grade glioma groups. The lower-grade glioma group included 14 cases (1 case of WHO Ⅰ, tricholeukocyte astrocytoma; 13 cases of WHO Ⅱ, 11 astrocytomas with 1 case of post-operative reenrrence, 1 ependymoma, 1 oligodendroglioma); the higher-grade group included 16 cases (! I cases of WHOm, anaplastic astrocytoma with 1 case of post-operative recurrence; 5 cases of WHO Ⅳ, 4 multiforme glioblastomas, 1 ependymoma). The ADC and rADC values of lower-grade gliomas were (1.36±0.16)×10-3 mm2/s and 1.76±0.23, and the values of higher-grade glioma were (1.08±0.10)×10-3 mm2/s and 1.36±0.16, respectively. The values of ADC and rADC were significantly different between the 2 groups (P<0.05). The accuracy rates were 86.7% and 83.3% when the thresholds of ADC and rADC were 1.20×10-3 mm2/s and 1.53. Conclusion The values of ADC and rADC have high accuracy for pathological grading of the glioma.

Objective To investigate the value of perfusion-weighted magnetic resonanceimaging (MRI) in the grading ofgliomas. Methods Thirty patients with pathologically confirmedglioma underwent perfusion-weighted MRI. Of the 30 glioma patients, 14 patients had low-grade and 16had high-grade gliomas. The low-grade glioma patients included 1 with WHO grade Ⅰ glioma (pilocyticastroeytoma) and 13 with WHO grade Ⅱ gliomas; in the WHO grade Ⅱ patients, 11 had astrocytomaincluding I with postoperative recurrence, 1 with epeudymoma, and 1 with oligodendroglioma. Of the 16patients with high-grade gliomas, 11 had WHO grade Ⅲ gliomas identified as anaplastic astrocytoma(including 1 with postoperative recurrence) and 5 had WHO Ⅳ gliomas (including 4 with glioblastomamultiforme and 1 with ependymoma). The relative cerebral blood volume (rCBV), rMSD and relativemean transit time (rMTT) were measured and statistically analyzed in these patients. Results TherCBV, rMSD and rMTT were 1.99±1.0, 1.83±0.78, and 1.10±0.08 in the patients with low-grade gliomas,as compared to those in the high-grade giioma patients of 4.95±2.04, 3.59±1.13, and 1.03±0.61,respectively, showing significant differences in the rCBV and rMSD between the two groups (P<0.05).The diagnostic accuracy of rCBV and rMSD was 83.3% and 80% for the gliomas using their upper limits(2.99 and 2.61, respectively) as the diagnostic thresholds. Conclusion The values ofrCBV and rMSDhave high accuracy in the grading of brain gliomas.