RESUMEN
Purpose To investigate the clinical feature and histopathology of pyloric gland adenoma.Methods Clinical da-ta of 16 cases of pyloric adenomas were collected.The expres-sion of Pepsinogen I,p53,MUC6,MUC5AC,CgA,Syn,CD56,Ki67,CDX-2,MUC2,β-catenin,and CD10 was detec-ted by immunohistochemistry EnVision method.The relationship with clinicopathological features and prognosis was analyzed.Results There were 7 males and 9 females,aged from 26 to 81 years with an average of 58 years.Tumor diameters ranged from 0.2 to 4 centimeter with a mean of 1.3 centimeter.The anatomi-cal sites of the 16 PGA were stomach(6 cases),including 3 ca-ses in body,3 cases in fundus and duodenum(3 cases).7 ca-ses of low-grade PGAs were composed of closely packed pyloric-type glands,lined by cuboidal/low columnar epithelia.The nu-clei(round to ovoid)were basally located,with inconspicuous nucleoli.Neoplastic cells characterized by a defined ground-glass appearance,with clear or eosinophilic cytoplasm.The cell was lack of a well-defined apical mucin cap.1 case of high-grade PGAs consistently exhibited architecture,crowded nuclei,and loss of nuclear polarity.The remaining 8 cases had both low-and high-grade components.Squamous morula was found in 5 cases.According to immunohistochemical characteristics,8 of 16 cases were mixed pattern(MUC5AC+,MUC6+).Others were pure pyloric type(MUC5AC-,MUC6+).No foveolar-dominant type(MUC5AC+,MUC6-)was found.Conclusion PGA is a rare tumor of the digestive system,with characteristic morpholog-ical characteristics and immunophenotype.Clinicians and pathol-ogists need to strengthen their understanding and better manage patients because of the risk of malignant transformation.Early detection,early diagnosis and early treatment are needed.
RESUMEN
Objective:To investigate the clinical features, characteristics under white-light endoscopy and endoscopic ultrasonography, and treatment strategies of gastritis cystica profunda (GCP) accompanied with or without neoplastic lesions.Methods:Clinical data of 35 patients, who were pathologically diagnosed as having GCP after endoscopic or surgical resection in Beijing Friendship Hospital, Capital Medical University from January 2015 to February 2021, were retrospectively collected, including 27 patients with neoplastic lesions. The demographic information, clinical manifestations, endoscopic features, treatment methods, and pathological results of GCP were summarized.Results:Thirty-five patients with GCP were 68.26±8.08 years old, and mostly male (80.00%, 28/35). The most common symptom was upper abdominal pain, accounting for 31.43% (11/35), and 25.71% (9/35) had no symptoms. Other symptoms included acid reflux, heartburn, abdominal distension, anemia, and choking sensation after eating. The most common site of GCP was cardia (51.43%, 18/35), and the main endoscopic manifestations of GCP were flat mucosal lesions (68.57%, 24/35), mainly 0-Ⅱa and 0-Ⅱa+Ⅱc type lesions, accounting for 66.67% (16/24). The second common endoscopic manifestation was polypoid eminence (20.00%, 7/35). Endoscopic ultrasonography was performed in 15 patients, with main manifestations of uniform hypoechoic with or without cystic echo (73.33%, 11/15). Among the GCP cases, 33 patients received endoscopic resection, and 2 received surgical treatment. The treatment processes were all successfully completed, and en-bloc resection was accomplished for all lesions receiving endoscopy, with the mean endoscopic operation time of 86.13 min. One patient suffered postoperative delayed bleeding after ESD which was stopped by endoscopic hemostasis. Final pathological results showed that the proportion of GCP complicated with neoplastic lesions was 77.14% (27/35), 68.57% (24/35) with early gastric cancer or precursor. Twenty-three cases achieved R0 resection. One case showed positive basal resection margin and vascular invasion, and recurrence happened in situ at the 5th month of follow-up, surgical resection was then performed. The endoscopic complete resection rate was 95.83% (23/24).Conclusion:GCP usually occurs in middle-aged and elderly male, often located in cardia, manifested mainly as flat mucosal lesions and polypoid changes. Endoscopic ultrasonography shows a high diagnostic value for GCP, and endoscopic treatment is safe and effective minimally invasive treatment for GCP.
RESUMEN
italic>Tussilago farfara L. is a perennial herb of Tussilago genus in the Compositae family. Its dried buds and leaves have good biological activities and have a long history of medicinal use in China and Europe. In this paper, we investigated the whole chloroplast genome characteristics, sequence duplication, structural variation and phylogeny of the Tussilago farfara L. After sequencing the Tussilago farfara L. chloroplast genome using Illumination technology, the complete Tussilago farfara L. chloroplast genome was further obtained by assembly and annotation, followed by a series of inverted repeat-large single copy/small single copy region contraction and expansion analysis, genome sequence variation, etc. The sequences of 13 homologous plants downloaded from NCBI were used to construct a neighbor-joining phylogenetic tree. The results showed that the total GC content of the chloroplast genome was 37.4% and the length was 150 300 bp; 125 genes were annotated, including 82 protein-coding genes, 35 tRNAs and 8 rRNAs; 148 (simple sequence repeats, SSR) loci were detected, and the relative synonymous codon usage showed that 31 codons out of 64 codons had a usage of >1. In the phylogenetic analysis, the chloroplast genomes of the seven species of Asteraceae, including the Yulin Tussilago farfara L., were highly conserved, and the sequence variation of the (large single-copy, LSC) and (small single-copy, SSC) regions was higher than that of the (inverted repeat, IR) region. This is in general agreement with the reported phylogeny of Yulin Tussilago farfara L. In this study, we obtained a high quality chloroplast genome and analyzed its genome characteristics, codon preference, SSR characteristics, SC/IR boundary, sequence variation and phylogeny, which can provide a basis for species identification, genetic diversity analysis and resource development of this medicinal plant.
RESUMEN
Objective: To investigate the clinicopathological changes of early gastric cancer, especially its background mucosa, after the eradication of Helicobacter pylori (H. pylori), and to investigate the causes of underdiagnosis in preoperative biopsy pathology. Methods: Ninety cases of early gastric cancer after H. pylori eradication and 120 cases of endoscopic submucosal dissection (ESD) specimens without H. pylori eradication and their corresponding biopsy specimens were collected from Beijing Friendship Hospital Affiliated to Capital Medical University during 2016-2021. The clinicopathological data of the patients were analyzed, and the histopathological characteristics and immunophenotypic results compared. Results: Compared with the early gastric cancer without H. pylori eradication history, the histopathological type of early gastric cancer after H. pylori eradication was differentiated adenocarcinoma, with staggered distribution of cancerous and non-cancerous epithelium in the tumor area. The morphologic characteristics of gastric mucosa in the background of early gastric cancer after H. pylori eradication, were distinctive, including widening of the opening of enterosylated glandular ducts, serrated change of luminal margin, eosinophilic and microvesicular cytoplasm of enterosylated epithelium. Low-grade atypia existed in gastric cancer epithelial cells after sterilization, which might lead to underdiagnosis or missed diagnosis in biopsy pathology. Conclusions: Early gastric cancer and its background mucosa after H. pylori eradication have unique morphological characteristics, which can be used as a clue for pathological diagnosis, improve the accuracy of biopsy pathology and reduce the underdiagnosis.
Asunto(s)
Humanos , Helicobacter pylori , Infecciones por Helicobacter/tratamiento farmacológico , Neoplasias Gástricas/patología , Mucosa Gástrica/patología , BiopsiaRESUMEN
Objective:To evaluate the clinical efficacy of endoscopy for early cancer of duodenal papilla.Methods:A retrospective analysis was performed on data collected from 23 consecutive patients with early cancer of duodenal papilla, who underwent endoscopic treatment from January 2015 to January 2021 in Beijing Friendship Hospital. Baseline data, endoscopic and pathological data, occurrence and outcome of complications were studied.Results:Twenty-three patients successfully received endoscopic treatment. The maximal diameter of lesions evaluated under endoscopy was 1.90±0.83 cm. Among the 23 cases, 20 underwent endoscopic mucosal resection and 3 underwent endoscopic piecemeal mucosal resection. Delayed bleeding occurred in 5 cases (21.7%), 3 patients (13.0%) developed postoperative hyperamylasemia, 6 patients (26.1%) developed mild acute pancreatitis, and 1 patient (4.3%) had pancreatic duct stent displacement after the operation, which improved after medical or endoscopic treatment. No perforation occurred during the perioperative period. In terms of final pathology, the en bloc resection rate was 82.6% (19/23), and the complete resection rate was 78.3% (18/23). Preoperative endoscopic ultrasonography showed that 19 lesions were confined to the mucosal layer, which were all demonstrated by postoperative pathology. Four other cases were suspected to be involved in the submucosa or the end of the pancreaticobiliary duct under endoscopic ultrasonography, two of which were confined to the mucosal layer, and the other 2 cases involved the submucosal layer, so additional surgery was performed. A total of 18 patients were followed up, among whom 14 achieved complete resection of postoperative pathology, and 2 patients (14.3%, 2/14) were found to have recurrence at 12 and 51 months respectively after the treatment and did not relapse after surgical treatment and endoscopic treatment respectively. Among 4 other patients of follow-up whose pathology did not achieve complete resection, 1 had no recurrence, and the other 3 received additional surgical treatment without recurrence.Conclusion:Endoscopic treatment for early cancer of duodenal papilla is safe and effective. It is necessary to improve preoperative evaluation, stay alert to perioperative complications, and pay attention to regular postoperative endoscopic follow-up.
RESUMEN
OBJECTIVE@#To evaluate the clinical effects of percutaneous endoscopic foraminoplasty for simple lumbar spinal lateral exit zone stenosis.@*METHODS@#A total of 36 patients with simple lumbar spinal lateral exit zone stenosis were admitted to our hospital from January 2013 to June 2018, and received selective nerve root canal radiography and radicular block. According to the symptoms and patients' personal wills, 22 cases underwent the one-stage percutaneous foraminal surgery(the one-stage operation group), and the other 14 patients were re-admitted to the hospital for operation(the delayed operation group) because of the recurrence of symptoms after discharge. The visual analogue scale (VAS) and Oswestry Disability Index (ODI) were used to evaluate the clinical effects before therapy, 1 day after the radicular block, and 1 day, 3 months and 6 months after the operation.@*RESULTS@#VAS and ODI of all 36 cases were obviously improved (0.05), but when compared with its own pretherapy andbefore readmission results, the difference was significant (<0.05). There was no nerve injury in all cases. Only 2 cases were presented with the outlet root stimulation symptoms, and the symptoms relieved after short term conservative treatment.@*CONCLUSION@#The clinical effects of radicular block may be unsustainable for patients with simple lumbar spinal lateral exit zone stenosis. Instead, percutaneous endoscopic foraminoplasty was simple, safe and effective.
Asunto(s)
Humanos , Constricción Patológica , Descompresión Quirúrgica , Vértebras Lumbares , Neuroendoscopía , Estudios Retrospectivos , Estenosis Espinal , Cirugía General , Resultado del TratamientoRESUMEN
Objective:To investigate the allelopathic effects of water extracts from rhizosphere soil of three medicinal plants Rehmannia glutinosa,Pinellia ternata and Isatis indigotica on seed germination and seedling growth of Polygala tenuifolia, screen the stubble varieties suitable for crop rotation with P. tenuifolia, and provide some scientific basis for continuous cropping obstacles of P. tenuifolia. Method:The bioassay method was used to study the effects of rhizosphere soil water extracts from three medicinal plants Rehmannia glutinosa,Pinellia ternata and Isatis indigotica at concentrations of 0.3,0.6,0.9 g·mL-1 on the germination of P. tenuifolia seed and seedling growth. Result:The rhizosphere soil water extracts of Rehmannia glutinosa and Pinellia ternata showed basically low-promotion and high-inhibition concentration effects on the final germination rate,germination potential,and germination index of P. tenuifolia seeds,while the water extract of Isatis indigotica showed significant allelopathic inhibition effect. All three rhizosphere soil water extracts showed significant allelopathic inhibition effects on the growth index of P. tenuifolia seedlings. Among them,the rhizosphere soil water extract of Rehmannia glutinosa showed lower inhibitory effect on the plant height and root length of P. tenuifolia seedlings than the other two water extracts. The photosynthetic pigment content,proline(Pro) content,and soluble sugar content of P. tenuifolia chinensis seedlings were the highest under 0.3 g·mL-1 soil water extract of Rehmannia glutinosa, with relatively higher content of soluble protein, and relatively lower content of hydrogen oxide(H2O2). Under the treatment of 0.9 g·mL-1 soil water extract of Rehmannia glutinosa,P. tenuifolia seedlings had the highest peroxidase(POD) and superoxide dismutase(SOD) activities,low catalase(CAT) activity,and lowest content of malondialdehyde(MDA). Conclusion:Based on the comprehensive analysis of the above experimental data and allelopathic effects,the water extract of rhizosphere of Rehmannia glutinosa can promote the germination of P. tenuifolia seeds to a certain extent,and lay the foundation for seedling resistance to biochemical stress. Therefore, Rehmannia glutinosa is more suitable for crop rotation with P. tenuifolia.
RESUMEN
Objective To assess the efficacy and safety of endoscopic piecemeal mucosal resection (EPMR) and endoscopic submucosal dissection (ESD) in the treatment of larger (≥10-15 mm) non-ampullary duodenal lesions. Methods The data of 21 patients with larger (≥10-15 mm) non-ampullary duodenal lesions, who underwent EPMR or ESD in Beijing Friendship Hospital from February 2013 to August 2018 were retrospectively analyzed. According to the treatment plan, the patients were divided into the EPMR group ( n=13) and the ESD group ( n=8) . The operation time, pathological histological evaluation and complications of each group were summarized. Results In the EPMR group, all 13 lesions were originated from the mucosa. The diameter of the lesion estimated by endoscopy and the size of the resected specimen were 22±12 mm and 26±15 mm, respectively, the median operation time was 39. 0 (23. 0, 45. 0) min, and 12 lesions were closed with metal clips. For pathological assessment, there were 2 cases of ectopia gastric mucosa, 7 cases of low grade intraepithelial neoplasia, and 4 cases of high grade intraepithelial neoplasia. And 5 cases were horizontal margin positive ( low grade intraepithelial neoplasia ) in the 13 lesions. Complications occurred in 2 patients, including 1 case of perioperative bacteremia, which was cured after anti-infective treatment, and another case of intraoperative perforation, which was recovered after emergency surgery. In the ESD group, there were 6 mucosal lesions and 2 submucosal lesions. The diameter of the lesion estimated by endoscopy and the size of the resected specimen were 17 ± 5 mm and 20 ± 7 mm, respectively, the median operation time was 47. 5 ( 34. 0, 68. 0) min, and all 8 lesions were closed with metal clips. For pathological assessment, there were 3 cases of low grade intraepithelial neoplasia, 3 cases of high grade intraepithelial neoplasia, 1 case of submucosal cyst, and 1 case of lymphangioma. All 8 cases were horizontal margin negative, and low-grade intraepithelial neoplasia was suspected at the vertical margin of 1 case, which failed to achieve complete resection. Perioperative perforation occurred in 3 cases. One case recovered after endoscopic treatment, another case was unsatisfactory under endoscopy, and recovered after emergency surgery. The other case was recovered after laparoscopic treatment. Conclusion EPMR and ESD are both safe and effective for larger non-ampullary duodenal lesions, which is worthy of further clinical research.
RESUMEN
Objective@#To assess the efficacy and safety of endoscopic piecemeal mucosal resection (EPMR) and endoscopic submucosal dissection (ESD) in the treatment of larger (≥10-15 mm) non-ampullary duodenal lesions.@*Methods@#The data of 21 patients with larger (≥10-15 mm) non-ampullary duodenal lesions, who underwent EPMR or ESD in Beijing Friendship Hospital from February 2013 to August 2018 were retrospectively analyzed. According to the treatment plan, the patients were divided into the EPMR group (n=13) and the ESD group (n=8). The operation time, pathological histological evaluation and complications of each group were summarized.@*Results@#In the EPMR group, all 13 lesions were originated from the mucosa. The diameter of the lesion estimated by endoscopy and the size of the resected specimen were 22±12 mm and 26±15 mm, respectively, the median operation time was 39.0 (23.0, 45.0) min, and 12 lesions were closed with metal clips. For pathological assessment, there were 2 cases of ectopia gastric mucosa, 7 cases of low grade intraepithelial neoplasia, and 4 cases of high grade intraepithelial neoplasia. And 5 cases were horizontal margin positive (low grade intraepithelial neoplasia) in the 13 lesions. Complications occurred in 2 patients, including 1 case of perioperative bacteremia, which was cured after anti-infective treatment, and another case of intraoperative perforation, which was recovered after emergency surgery. In the ESD group, there were 6 mucosal lesions and 2 submucosal lesions. The diameter of the lesion estimated by endoscopy and the size of the resected specimen were 17±5 mm and 20±7 mm, respectively, the median operation time was 47.5 (34.0, 68.0) min, and all 8 lesions were closed with metal clips. For pathological assessment, there were 3 cases of low grade intraepithelial neoplasia, 3 cases of high grade intraepithelial neoplasia, 1 case of submucosal cyst, and 1 case of lymphangioma. All 8 cases were horizontal margin negative, and low-grade intraepithelial neoplasia was suspected at the vertical margin of 1 case, which failed to achieve complete resection. Perioperative perforation occurred in 3 cases. One case recovered after endoscopic treatment, another case was unsatisfactory under endoscopy, and recovered after emergency surgery. The other case was recovered after laparoscopic treatment.@*Conclusion@#EPMR and ESD are both safe and effective for larger non-ampullary duodenal lesions, which is worthy of further clinical research.
RESUMEN
Objective@#To investigate the early clinical efficacy of bone cement modified with mineralized collagen in the treatment of osteoporotic vertebral compression fractures with percutaneous vertebroplasty(PVP).@*Methods@#All 98 cases of sin-gle vertebral osteoporotic compression fracture from June 2017 to August 2018 were studied. Forty-eight cases were treated with bone cement modified with mineralized collagen (modified group) and 50 cases were treated with traditional bone cement (traditional group). The basic clinical information including age, sex and bone mineral density of all patients were analyzed. The injectable time, volume, distribution (bone cement in the vertebra showing a whole mass without interruption or loss is known as type O while bone cement in the vertebra showing two masses with a small amount or none in the middle is known as type H) and leakage of bone cement during operation, visual analogue score(VAS), Oswestry disability index (ODI), height of anterior, middle and posterior columns of injured vertebrae and the incidence of adjacent vertebral fractures were compared between the two groups.@*Results@#There were no significant differences in age, sex, bone mineral density T value and bone ce-ment injection volume between the two groups. VSA score, ODI, anterior and middle column heights were significantly improved on the first day and 6 months after operation (P<0.05), but there was no significant difference between the two groups (P>0.05). In-traoperative cement injectable time was shorter in the traditional group than the modified group,and there was significant different between the two groups (t=3.428, P=0.002). The incidence of adjacent vertebral re-fracture was 12% in the traditional group and 2% in the modified group. There was significant different between the two groups (χ2=7.061, P=0.029). The leakage rate of bone cement was 10% in the traditional group and 6% in the modified group, andthere was significant difference between the two groups (χ2=7.963, P=0.019). The distribution of bone cement (O/H) in the traditional group was 20/30 and that in the modified group was 19/29, and there was significant difference between the two groups (χ2=38.992, P<0.001).@*Conclusion@#Modified bone cement has the same clinical effect as traditional bone cement in relieving pain and restoring the height of injured vertebra in the treat-ment of osteoporotic vertebral compression fractures with PVP. However, the injectable time of modified bone cement is longer. The leakage rate and the incidence of re-fracture of adjacent vertebrae are significantly reduced.
RESUMEN
Objective:To study the effect of different hormone ratios on the callus induction of roots,stems and leaves of Polygala tenuifolia,and determine and analyze the amount of flavonoids in roots,stems and leaves of P. tenuifolia. Method:With MS as the basic medium and roots,stems and leaves of P. tenuifolia sterile seedings as explants,the effects of 2,4-D,NAA and 6-BA on callus induction and flavonoid accumulation in different parts of roots,stems and leaves of P. tenuifolia were determined by orthogonal test. Result:2,4-D,NAA and 6-BA had significant effects on the callus induction rate of roots,stems and leaves of P. tenuifolia. The optimal callus induction combination of leaves was MS+3.0 mg·L-1 2,4-D+1.0 mg·L-1 NAA+1.5 mg·L-1 6-BA,the optimal callus induction combination of stems was MS+1.0 mg·L-1 2,4-D+3.0 mg·L-1 NAA+1.5 mg·L-1 6-BA,the optimal callus induction combination for roots was MS+1.0 mg·L-1 2,4-D+1.0 mg·L-1 NAA+1.0 mg·L-1 6-BA. And 2,4-D,NAA and 6-BA had significant effects on flavonoid accumulation in the stem callus of P. tenuifolia,and MS+3.0 mg·L-1 2,4-D+1.0 mg·L-1 NAA+0.5 mg·L-1 6-BA was the best flavonoid accumulation combination.NAA,6-BA had significant effects on flavonoid accumulation in the leave callus of P. tenuifolia,while 2,4-D had no significant effect,and MS+3.0 mg·L-1 2,4-D+2.0 mg·L-1 NAA+1.0 mg·L-1 6-BA was the optimal flavonoid accumulation combination,the three hormones had no significant effect on the accumulation of flavonoids in the root callus of P. tenuifolia,and MS+2.0 mg·L-1 2,4-D+1.0 mg·L-1 NAA+1.5 mg·L-1 6-BA was the best flavonoid accumulation combination. Conclusion:Under the conditions,the callus induction rate of roots,stems and leaves of P. tenuifolia is 100%, especially, the callus of P. tenuifolia leaves was the optimal,which is followed by P. tenuifolia stems and P. tenuifolia roots. Under the conditions,the amount of flavonoids in roots,stems and leaves of P. tenuifolia reach 21.31,24.56,23.61 mg·g-1,respectively.
RESUMEN
Objective: To establish the HPLC fingerprint of wild and cultivated Notholirion bulbuliferum,and recognize them according to the chemical pattern, in the expectation of providing the basis for the quality control and domestication cultivation of N. bulbuliferum of origins. Method: Twenty samples of wild and cultivated N. bulbuliferum collected from different origins were detected by HPLC, and a common mode of fingerprint was established. The Similarity Evaluation System for Chromatographic Fingerprint of TCM (2012A edition) was used to evaluate the similarity of the samples. The differences among the samples were identified by chemical pattern recognition methods, including principal component analysis (PCA),cluster analysis (HCA) and partial least squares discriminate analysis (PLS-DA). Result: The HPLC fingerprint of N. bulbuliferum was obtained,and 26 common peaks were found in the chromatograph. Similarities of all samples were over 0.9,PCA,and HCA and PLS-DA results demonstrated obvious distinctions between wild and cultivated N. bulbuliferum. Eight constituents,such as pcoumaric acid were identified as biomarkers,representing major differences between the two varieties. Conclusion: The HPLC chromatogram of N. bulbuliferum developed in this paper has strong characteristics and repeatability. After being combined with the pattern recognition mode, it can be used as an effective method for evaluating the quality of N. bulbuliferum and distinguishing wild and cultivated N. bulbuliferum,and provide a reference for the quality control and domestication introduction of N. bulbuliferum.
RESUMEN
Objective To investigate the early clinical efficacy of bone cement modified with mineralized collagen in the treatment of osteoporotic vertebral compression fractures with percutaneous vertebroplasty(PVP). Methods All 98 cases of sin?gle vertebral osteoporotic compression fracture from June 2017 to August 2018 were studied. Forty?eight cases were treated with bone cement modified with mineralized collagen (modified group) and 50 cases were treated with traditional bone cement (traditional group). The basic clinical information including age, sex and bone mineral density of all patients were analyzed. The injectable time, volume, distribution (bone cement in the vertebra showing a whole mass without interruption or loss is known as type O while bone cement in the vertebra showing two masses with a small amount or none in the middle is known as type H) and leakage of bone cement during operation, visual analogue score(VAS), Oswestry disability index (ODI), height of anterior, middle and posterior columns of injured vertebrae and the incidence of adjacent vertebral fractures were compared between the two groups. Results There were no significant differences in age, sex, bone mineral density T value and bone ce?ment injection volume between the two groups. VSA score, ODI, anterior and middle column heights were significantly improved on the first day and 6 months after operation (P<0.05), but there was no significant difference between the two groups (P>0.05). In?traoperative cement injectable time was shorter in the traditional group than the modified group,and there was significant different between the two groups (t=3.428, P=0.002). The incidence of adjacent vertebral re?fracture was 12% in the traditional group and 2% in the modified group. There was significant different between the two groups (χ2=7.061, P=0.029). The leakage rate of bone cement was 10% in the traditional group and 6% in the modified group, andthere was significant difference between the two groups (χ2=7.963, P=0.019). The distribution of bone cement (O/H) in the traditional group was 20/30 and that in the modified group was 19/29, and there was significant difference between the two groups (χ2=38.992, P<0.001). Conclusion Modified bone cement has the same clinical effect as traditional bone cement in relieving pain and restoring the height of injured vertebra in the treat?ment of osteoporotic vertebral compression fractures with PVP. However, the injectable time of modified bone cement is longer. The leakage rate and the incidence of re?fracture of adjacent vertebrae are significantly reduced.
RESUMEN
Objective To establish an HPLC fingerprint of raw and honey baked Farfarae Flos for its quality control and samples differentiation. Methods An HPLC method has been developed for the fingerprinting and evaluation of 36 batches of raw and honey baked Farfarae Flos collected from different locations. The Similarity Evaluation System for Chromatographic Fingerprint of TCM (2012A edition) was used to evaluate the similarity of 36 batches. The difference between raw and honey baked Farfarae Flos was identified by chemical pattern recognition methods including hierarchical cluster analysis (HCA), principal component analysis (PCA), and partial least squares discriminate analysis (PLS-DA). Results A standard fingerprint containing 20 common peaks was constructed from 36 batches of raw and honey baked Farfarae Flos, and identified 10 of them. The similarity of all batches with reference fingerprint was between 0.723-0.984. The similarity of 16 batches of raw Farfarae Flos was between 0.862-0.998, and the similarity of 20 batches of honey baked Farfarae Flos was between 0.687-0.993. HCA, PCA and PLS-DA results demonstrated that there were obvious distinction between raw and honey baked Farfarae Flos. According to the VIP plot, ten constituents including gallic acid, chlorogenic acid, isochlorogenic acid A, and tussilagone were primarily response for the discrimination. Conclusion The combination of HPLC fingerprint and chemical pattern recognition could provide a comprehensive reference for the quality control and quality evaluation of raw and honey baked Farfarae Flos.
RESUMEN
Objective To establish the quality evaluation model of material foundation-efficacy-bioactivity of Pinelliae Rhizoma by investigating the relationships between the total organic acids of Pinelliae Rhizoma and the antitussive effect, the HPLC fingerprint of total organic acid and the antitussive effect, the total organic acids and the antitussive potency, respectively. Methods The content of total organic acids in Pinelliae Rhizoma was determined by potentiometric titration. The total organic acid fingerprints were established by HPLC. The cough relieving effect was studied by the concentrated ammonia water cough model, and the spectral-effect relationship between total organic acids and antitussive effect was established by the grey correlation analysis. Based on the mice concentrated ammonia water cough model, the determination method of the cough potency of Pinelliae Rhizoma was established. The correlation among the total organic acids, the antitussive effect and the antitussive potency was analyzed by SPSS 18.0 Software. Results The total organic acids of Pinelliae Rhizoma had a significant inhibitory effect on mice cough induced by concentrated ammonia. The antitussive effect was enhanced with the increase of the content of total organic acids. In the HPLC chromatogram, the chemical components represented by chromatographic peaks of 4, 6 (succinic acid), and 12 showed a strong correlation with the antitussive effect. The cough efficacy mean value of ten batches of Pinelliae Rhizoma was (753.72 ± 58.18) U/g. Combined with the quantitative analysis of total organic acids, there was a significant positive correlation between them, showing an increase in the antitussive efficacy with an increase of the content of total organic acids. Conclusion This study not only revealed the material foundation of the anti-tussive effect of Pinelliae Rhizoma, but also clarified the correlation among total organic acids, antitussive effect and bioactivity. Finally, it can improve the quality standards of Pinelliae Rhizoma and provide a scientific basis for the construction of a new model for quality control of Pinelliae Rhizoma.
RESUMEN
Objective To study the chemical constituents and effects of crude and processed Pinelliae Rhizoma. Methods The contents of inosine, guanosine, adenosine, succinic acid, ephedrine hydrochloride, liquiritin, glyeyrrhizie acid, and 6-gingerol of Pinelliae Rhizoma, Pinelliae Rhizoma Praeparatum cum Alumine, Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine, and Pinelliae Rhizoma Praeparatum were detected by HPLC. The pharmacodynamics of the traditional efficacy of expectorant and cough relieving was studied by stimulating mice with phenol red and concentrated ammonia in the trachea of mice. Results The contents of inosine, guanosine, adenosine, succinic acid, and ephedrine hydrochloride decreased significantly after processing, and inosine was not detected in Pinelliae Rhizoma Praeparatum cum Alumine. Compared with the three processed products, the content of inosine, guanosine, adenosine and succinic acid was the highest in the Pinelliae Rhizoma Praeparatum cum Alumine, the lowest was in Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine, and in consistent with the effect of resolving phlegm. The four components were the active components of resolving phlegm effect. Adding alumen during Pinelliae Rhizoma Praeparatum cum Alumine processing has also enhanced its effectiveness. Pinelliae Rhizoma Praeparatum has the strongest antitussive effect, followed by Pinelliae Rhizoma, Pinelliae Rhizoma Praeparatum cum Alumine and Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine. Adding licorice and lime water during Pinelliae Rhizoma Praeparatum processing, licorice (peak 6: liquiritin, peak 7: ammonium glycyrrhizinate) had a powerful antitussive effect and enhanced its antitussive effect. After processing by ginger and white peony, ginger (peak 8: 6-gingerol) is good at warming middle energizer to arrest vomiting, thus enhance antiemetic effect and weaken phlegm, cough effect of Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine. Conclusion The chemical composition and efficacy of Pinelliae Rhizoma have changed after being processed, and different processing methods have different effects on its chemical composition and efficacy.
RESUMEN
Rubia cordifolia L. has been used as a traditional Chinese medicine for several centuries. In recent years, the resources of wild Rubia cordifolia have been declined sharply due to increased utilization and rising price. Therefore, it is of great urgency to evaluate and protect resources of wild plant of Rubia cordifolia. In our study, sixty-four individuals that represent eight wild populations of Rubia cordifolia L. were analyzed by Start Codon Targeted Polymorphism (SCoT) molecular markers. Genetic distance was calculated by POPGENE 3.2 software, cluster analysis was generated by NTSYS 2.10 software based on UPGMA method and Mantel Test was used to analysis the relationship between the genetic distances and geographical distance among the wild populations. The results showed a high genetic diversity of wild populations of Rubia cordifolia L. in Shaanxi province. A total of 182 bands were produced by 14 primers, among which 163 bands were polymorphic bands, and the percentage of polymorphic bands was 89.56%. The average value of Nei's genetic diversity index (H) was 0.293 6, Shannon's information index (I) was 0.444 6, genetic differentiation coefficient (Gst) was 0.555 3, and the gene flow (Nm) was 0.440 8, the wild populations were ranked by genetic diversity:AK > YL > SL > BJ > TC > YA > WN > XY. Mantel Test analysis demonstrated that the significant correlation was found between the genetic distances and geographical distances (r=0.776 4, PRubia cordifolia L. germplasms.
RESUMEN
<p><b>OBJECTIVE</b>To evolve the formula of relationship between opening angle of laminoplasty and the increased value of cross-sectional area, and to predict the opening angle according to the opening size of lanminoplasty.</p><p><b>METHODS</b>From January 2013 to December 2015, 26 patients underwent single open-door laminoplasty in C₃-C₇. Among them, 10 patients with ossification of posterior longitudinal ligament, there were 6 males and 4 females, aged from 39 to 58 years old with an average of 49.2 years; and 16 patients with cervical spondylotic myelopathy, there were 10 males and 6 females, aged from 40 to 58 years old with an average of 50.2 years. Through the changes of spinal canal shape between preoperation and postoperation to set up the regular geometric model, and to deduce the formula of the relationship between the opening angle of laminoplasty and the increased value of cross-sectional area, and predict the formula of opening angle. According to the preoperative and postoperative CT scan, the needed parameters were measured, and were substituted in the above formula to get the change of cross-sectional area before and after operation, predicting the opening angle of laminoplasty. The differences between the change of cross-sectional area before and after operation, predictive the opening angle of laminoplasty and practical measured data were analyzed by statistical methods, thus to verify the feasibility of formula in practical application.</p><p><b>RESULTS</b>All imaging data of 26 patients were obtained. There were significant differences in changes of cross-sectional areas in every patients (laminoplasty in C₃ to C₇) before and after operation in the same segment(<0.01). The increasing extent in cross-sectional areas was gradually diminished following the opening angle increasing. There was no significant difference between the opening angle attained by formula and the data measured by software in the same segment(>0.05).</p><p><b>CONCLUSIONS</b>Increment of cross-sectional areas following C₃-C₇ laminoplasty can be accurately attained and the opening angle can also be predicted by a certain formula, which can help surgeons to attain the accurate opening angle and reduce the postoperative complications.</p>
RESUMEN
Objective To study the protective effect of agrimony extracts from different extracting methods on cerebral ischemia-reperfusion injury in rats, in order to optimize the extraction scheme of agrimony. Methods Male rats were randomly assigned into seven groups: 1. Sham-operated group, 2. Untreated MCAO group (MCAO), 3. Petroleum ether extract of Agrimonia pilosa treated MCAO group (PEA), 4. Ethyl acetate extract of Agrimonia pilosa treated MCAO group (EAEA), 5. Ethanol extract of Agrimonia pilosa treated MCAO group (EEA), 6. Water extract of Agrimonia pilosa treated MCAO group (WEA), 7. Nimodipine treated MCAO group (NP). Intragastrical drug administration (i.g) was performed at 0 and 6 hours after MCAO. Neurological function tests were performed after reperfusion for 24 hours, then the brain was removed for the evaluations of the cerebral infarction volume (percentage of total brain volume) by immunohistochemistry, histological changes (hematoxylin-eosin staining), Na/K-ATPase, Ca-ATPase (modified method of Svoboda and Mosinger), mRNA expression of Tumor suppressor gene (P53) and hot shock protein (HSP70) (quantitative real-time PCR). Results The neurological function of MCAO group had significantly higher scores than the sham group (P<0.01). The WEA group showed a significantly lower neurological score than the MCAO group (P<0.05), indicating the protective effect of WEA on neurological deficits. The mean infarction volumes of WEA (13.5±6.6%, F=4.75, P<0.01), EEA (19.90±6.90%, F=5.23, P<0.01), PEA (20.40±5.30%, F=4.68, P<0.01) and EAEA (22.50±10.50%, F=6.25, P<0.05) group were all significantly smaller than that of MCAO group (29.40±6.50%). HE staining demonstrated that, compared to the treated groups, the infarcted cerebral tissue of MCAO group had more swelling neural cells, lighter stained nucleus, fewer and irregularly distributed neurons. The activity of Na/K-ATPase and Ca-ATPase reduced in the MCAO group (3.67±0.48 U/mg, 1.28±0.26 U/mg, respectively), and were significantly higher in WEA group (7.56±0.85 U/mg, F=12.65, P=0.010; 3.59±0.22 U/mg, F=8.32, P=0.041, respectively). The MCAO group showed significantly elevated P53 and HSP70 mRNA expressions compared to the sham group (P<0.01, P<0.05). P53 mRNA expressions in Agrimony extracts treated groups were significantly lower than that of the MCAO group (all P<0.01), with the WEA group showing the greatest difference from MCAO group. The HSP70 mRNA level of the treated groups were not significantly different from that of the MCAO group. Conclusions Treatment using water extracts of agrimony can promote the best functional and metabolic recovery for rat model of cerebral ischemia-reperfusion injury, which maybe relate with the upregulation of energy metabolism in nerve cells after MCAO.
RESUMEN
Objective To establish a dual RT-PCR detection method for bovine viral diarrhea virus(BVDV)in bovine-derived samples. Methods The primers were designed and synthesized according to the published BVDV1 and BVDV2 genes containing highly conservative sequences in the 5' untranslated regions(5' UTR)to establish the dual RT-PCR method. The specificity,sensitivity,stability of this method were evaluated. Then 41 bovine-derived samples and 64 bovine plasma samples including bovine calf serum, deproteinized calf serum extract and one lienal polypeptide injection were detected with this method. Results There was no cross reaction with bovine parainfluenza virus type 3(BPIV3), classical swine fever virus(CSFV)and Japanese encephalitis virus(JEV)when samples were detected with the established dual RT-PCR method. The lowest concentration of template DNA for detection of BVDV1 and BVDV2 was 8.87 × 102copies and 6.31 × 102copies per microliter,respectively. Electrophoresis bands of about 151 bp and 303 bp were still amplified and detected after the BVDV1 and BVDV2 cDNA was stored at -30℃ for 12 months. The BVDV positive rate of 41 bovine-derived samples and 64 bovine plasma samples detected with this dual RT-PCR method was 14.6% and 29.7%, respectively. Conclusions The established dual RT-PCR method has the advantages of high efficiency, specificity,sensitivity and stability,and can be used for the detection of BVDV in bovine-derived samples.