Aim To study the effects and mechanism of Guanxinkang capsules on myocardial injury induced by isoproterenol in rats.Methods 30 male Wistar rats were randomly divided into 3 groups:control group,acute myocardial ischemia group and Guanxinkang capsules group.Rats were given injections of ISO subcutaneously.Electrocardiography were performed,serum and myocardium creatine kinase(CK),creatine kinase MBmass(CK-MB),lactate dehydrogenase(LDH) and nitric oxide(NO) were detected,and the levels of NO and endothelins(ET) in myocardium were measured as well.Results The rising degree of ST-T obviously decreased in Guanxinkang capsules group,and the levels of serum CK,CK-MB and LDH decreased in Guanxinkang capsules group,compared with those of acute myocardial ischemia group(P

OBJECTIVETo search for natural benzylisoquinoline alkaloids against tumor.

METHODIn this study, taken DNA as target, a method was developed for screening of natural benzylisoquinoline alkaloids against tumor from traditional Chinese medicine by the use of centrifugal ultrafiltration combined with HPLC technology. The anti-tumor activity for the compounds screened was evaluated in vitro.

RESULTNine compounds interacted with DNA were discovered and identified from Macleaya cordata, Chelidonium majus, Coptis chinensis, and the proliferation of four types of human solid cancer cell lines was markedly inhibited by these compounds.

CONCLUSIONThe developed method was considered to be suitable for screening of natural benzylisoquinoline alkaloids against tumor from traditional Chinese medicine.

Alkaloids ; analysis ; isolation & purification ; pharmacology ; Antineoplastic Agents, Phytogenic ; pharmacology ; Benzylisoquinolines ; analysis ; isolation & purification ; pharmacology ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Chelidonium ; chemistry ; Coptis ; chemistry ; Drug Evaluation, Preclinical ; Drugs, Chinese Herbal ; analysis ; isolation & purification ; pharmacology ; Humans ; Neoplasms ; drug therapy ; physiopathology ; Papaveraceae ; chemistry

Objective:To explore the clinical and histopathologic features of lupus nephritis (LN) patients with positive antineutrophil cytoplasmic antibody (ANCA), so as to provide more theoretical basis to recognize and treat this disease.Methods:Clinical data of biopsy-proven LN patients with ANCA test in the First Affiliated Hospital of Sun Yat-sen University from November 1, 2002 to September 11, 2020 were collected and analyzed retrospectively. The difference of clinical data, laboratory examination, and pathological examination of renal biopsy between ANCA-positive group and ANCA-negative group. The clinicopathological characteristics between different ANCA serotypes were compared.Results:A total of 1 304 patients with LN confirmed by renal biopsy and ANCA test results were enrolled. Eighty ANCA-positive patients from 1 304 LN patients were screened. There are 55(68.8%) ANCA-positive LN patients with positive anti-myeloperoxidase antibodies (MPO). There were 14(17.5%) ANCA-positive LN patients with positive anti-proteinase 3 antibodies (PR3), and 11(13.8%) ANCA-positive patients with double positive antibodies of MPO and PR3. ANCA-positive LN patients had significantly higher serum creatinine [135.5(68.0, 361.8) μmol/L vs 88.0(64.0, 165.0) μmol/L, P=0.004] and blood urea nitrogen [12.35(6.35, 21.18) mmol/L vs 8.60 (5.50, 15.70) mmol/L, P=0.026] as well as lower estimated glomerular filtration rate [45.70(13.83, 84.10) ml·min -1·(1.73 m 2) -1 vs 66.75(38.43, 96.22) ml·min -1·(1.73 m 2) -1, P=0.001] than ANCA-negative patients (stratified sampling of 160 patients). ANCA-positive LN patients had higher chronicity index than ANCA-negative LN patients [3(2, 7) vs 2(0, 5), P=0.006]. There were statistically significant difference in hemoglobin, serum creatinine and estimated glomerular filtration rate among ANCA-positive group, ANCA-negative group, and MPO-ANCA and PR3-ANCA double positive group. MPO-ANCA and PR3-ANCA double positive LN patients had the lowest hemoglobin and estimated glomerular filtration rate, and highest serum creatinine among the three groups (all P<0.05). Conclusions:ANCA-positive LN patients have worse renal function and higher renal histological chronicity index than ANCA-negative LN patients, especially for patients with double positive MPO-ANCA and PR3-ANCA. More stringent monitoring and therapy may be needed in this subgroup of LN patients.

Objective:To explore the prevalence and independent associated factors of vascular calcification (VC) in non-dialysis chronic kidney disease (CKD) patients of stage 3-5.Methods:It was a single-center cross-sectional observational study. Non-dialysis stage 3-5 CKD patients ≥18 years old who were admitted to the Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University from May 1, 2022 to December 31, 2022 with VC evaluation were enrolled. The patients' general information, laboratory examination and imaging data were collected. Coronary artery calcification (CAC), thoracic aorta calcification (TAC), abdominal aorta calcification (AAC), carotid artery calcification and aortic valve calcification (AVC) were evaluated by cardiac-gated electron-beam CT (EBCT) scans, lateral lumbar x-ray, cervical macrovascular ultrasound and echocardiography, respectively. The differences in clinical data and the prevalence of VC at different sites of patients with different CKD stages were compared, and the prevalence of VC at different sites of patients in different age groups [youth group (18-44 years old), middle-aged group (45-64 years old) and elderly group (≥65 years old)] and patients with or without diabetes were compared. Multivariate logistic regression analysis was used to analyse the independent associated factors of VC for different areas.Results:A total of 206 patients aged (51±14) years were included, including 129 (62.6%) males. There were 44 patients with CKD stage 3 (21.4%), 51 patients with CKD stage 4 (24.8%), and 111 patients with CKD stage 5 (53.9%). CKD was caused by chronic glomerulonephritis [104 cases (50.5%)], diabetic kidney damage [35 cases (17.0%)], hypertensive kidney damage [29 cases (14.1%)] and others [38 cases (18.4%)]. Among 206 patients, 131 (63.6%) exhibited cardiovascular calcification, and the prevalence of CAC, TAC, AAC, carotid artery calcification, and AVC was 37.9%, 43.7%, 37.9%, 35.9% and 9.7%, respectively. The overall prevalence of VC in young, middle-aged and elderly patients was 24.6%, 73.6% and 97.4%, respectively. With the increase of age, the prevalence of VC in each site gradually increased, and the increasing trend was statistically significant (all P<0.001). The overall prevalence of VC in CKD patients with diabetes was 92.5% (62/67), and the prevalence of VC at each site in the patients with diabetes was significantly higher than that in the patients without diabetes (all P<0.001). Multivariate logistic regression analysis revealed that age (every 10 years increase, OR=2.51, 95% CI 1.77-3.56, P<0.001), hypertension ( OR=5.88, 95% CI 1.57-22.10, P=0.009), and diabetes ( OR=4.66, 95% CI 2.10-10.35, P<0.001) were independently correlated with CAC; Age (every 10 years increase, OR=6.43, 95% CI 3.64-11.36, P<0.001) and hypertension ( OR=6.09, 95% CI 1.33-27.84, P=0.020) were independently correlated with TAC; Female ( OR=0.23, 95% CI 0.07-0.72, P=0.011), age (every 10 years increase, OR=3.90, 95% CI 2.42-6.29, P<0.001), diabetes ( OR=5.37, 95% CI 2.19-13.19, P<0.001) and serum magnesium ( OR=0.01,95% CI 0-0.35, P=0.014) were independently correlated with AAC. Moreover, age and diabetes were independently correlated with carotid artery calcification, AVC and overall VC Conclusions:The prevalence of VC in non-dialysis CKD patients of stage 3-5 is 63.59%, of which CAC reaches 37.9%, TAC is the most common one (43.7%), while AVC is the least one (9.7%). Age and diabetes are the independent associated factors for VC of all sites except TAC, while hypertension is an independent associated factor for both CAC and TAC.

Objective:To evaluate the initial clinical outcome of applying a comprehensive debulking procedure centered on the digital and plantar flaps with comparatively healthy proximal pedicle to reconstruct the hypertrophic toes and forefoots in one-stage surgery in multiple toes macrodactyly in children.Methods:The clinical data of children with macrodactyly deformity treated by the Department of Burn and Plastic Surgery in Children’s Hospital of Chongqing Medical University from January 2022 to October 2023 were retrospectively analyzed. Design toe and plantar arbitrary flaps with a few vascular perforating branches which pedicle at the comparatively healthy proximal side and resect all tissues beyond the normal length. In severe toe, a composite tissue nail-flap with the artery was dissected to reconstruct the toenail. Fat debulking on the surface of deep plantar fascia as well as within the osseofascial sheath, resecting partially of the fatty infiltrated nerve, transverse and longitudinal osteotomy to shorten and narrowed phalanxes without epiphyseal block, arthroplasty and flexor tendon tightening were performed. Finally, toes shaped by wrapping toe flaps, and pelmas restored by plantar flaps which both with comparatively healthy proximal pedicle. The operation time, healing time, and whether the toes and toenails are preserved were all recorded. The maximum circumference of both foot, the difference in shoe size, the presence of skin ulcers, wound scars, toe webbing morphology, the presence of basic sensation, and the satisfaction of parents were followed-up after surgery. The modified follow-up questionnaire was used to evaluate the surgical effect, the total score is 0-12 points, and the higher the score, the better the surgical outcome. Descriptive methods was used for statistical analysis, and the measurement data conforming to normal distribution were expressed as Mean±SD.Results:A total of 15 patients were enrolled, including 11 males and 4 females. The median age at the time of operation was 2.75 years (0.9-10.8 years). There were 11 cases with 2 toes and 4 cases with 3 toes, a total of 34 toes involved. The average surgical duration was 4.13 hours (3.25 hours for 2 toes and 5.00 hours for 3 toes). Only one severe case with 3 toes involved was amputated the biggest toe ray and totally 2 toe nail flaps were harvested unsuccessfully intraoperative. Except 3 toes had distal skin partially necrosis and 2 nail flaps were completely necrotic which healed after dressing changes, the rest of the toes were healing well after operation. The average follow-up time was 4.8 months (3-11 months), the difference of circumference was less than 1.5 cm, as well as in length was less than 0.5 cm between feet and all children were able to wear the appropriate shoes with same size. A total of 4 toes failed to retain toenails, and 1 had a very thin toenail. Except for one case with insufficient web depth, the other toe webs were close to normal. There was no skin ulcer occurred, the basic sensation of the feet was present, and wound scars were inconspicuous. The score of the modified questionnaire was 10.54±0.88, all parents were satisfied with the results.Conclusion:Comprehensive procedure centered on the digital and plantar flaps with comparatively healthy proximal pedicle for debulking multiple toes macrodactyly in children could completely excise distal hypertrophic tissues in a single operation, and the size of the affected feet and toes can be greatly reduced to wearing shoes of the same size, and have a high success rate in preserving the toes, as well as nails. The reconstructed feet, toes and toe webbing have near-normal morphology, hidden scar, no ulcers after walked and achieve a good initial effect.

Objective:To evaluate the initial clinical outcome of applying a comprehensive debulking procedure centered on the digital and plantar flaps with comparatively healthy proximal pedicle to reconstruct the hypertrophic toes and forefoots in one-stage surgery in multiple toes macrodactyly in children.Methods:The clinical data of children with macrodactyly deformity treated by the Department of Burn and Plastic Surgery in Children’s Hospital of Chongqing Medical University from January 2022 to October 2023 were retrospectively analyzed. Design toe and plantar arbitrary flaps with a few vascular perforating branches which pedicle at the comparatively healthy proximal side and resect all tissues beyond the normal length. In severe toe, a composite tissue nail-flap with the artery was dissected to reconstruct the toenail. Fat debulking on the surface of deep plantar fascia as well as within the osseofascial sheath, resecting partially of the fatty infiltrated nerve, transverse and longitudinal osteotomy to shorten and narrowed phalanxes without epiphyseal block, arthroplasty and flexor tendon tightening were performed. Finally, toes shaped by wrapping toe flaps, and pelmas restored by plantar flaps which both with comparatively healthy proximal pedicle. The operation time, healing time, and whether the toes and toenails are preserved were all recorded. The maximum circumference of both foot, the difference in shoe size, the presence of skin ulcers, wound scars, toe webbing morphology, the presence of basic sensation, and the satisfaction of parents were followed-up after surgery. The modified follow-up questionnaire was used to evaluate the surgical effect, the total score is 0-12 points, and the higher the score, the better the surgical outcome. Descriptive methods was used for statistical analysis, and the measurement data conforming to normal distribution were expressed as Mean±SD.Results:A total of 15 patients were enrolled, including 11 males and 4 females. The median age at the time of operation was 2.75 years (0.9-10.8 years). There were 11 cases with 2 toes and 4 cases with 3 toes, a total of 34 toes involved. The average surgical duration was 4.13 hours (3.25 hours for 2 toes and 5.00 hours for 3 toes). Only one severe case with 3 toes involved was amputated the biggest toe ray and totally 2 toe nail flaps were harvested unsuccessfully intraoperative. Except 3 toes had distal skin partially necrosis and 2 nail flaps were completely necrotic which healed after dressing changes, the rest of the toes were healing well after operation. The average follow-up time was 4.8 months (3-11 months), the difference of circumference was less than 1.5 cm, as well as in length was less than 0.5 cm between feet and all children were able to wear the appropriate shoes with same size. A total of 4 toes failed to retain toenails, and 1 had a very thin toenail. Except for one case with insufficient web depth, the other toe webs were close to normal. There was no skin ulcer occurred, the basic sensation of the feet was present, and wound scars were inconspicuous. The score of the modified questionnaire was 10.54±0.88, all parents were satisfied with the results.Conclusion:Comprehensive procedure centered on the digital and plantar flaps with comparatively healthy proximal pedicle for debulking multiple toes macrodactyly in children could completely excise distal hypertrophic tissues in a single operation, and the size of the affected feet and toes can be greatly reduced to wearing shoes of the same size, and have a high success rate in preserving the toes, as well as nails. The reconstructed feet, toes and toe webbing have near-normal morphology, hidden scar, no ulcers after walked and achieve a good initial effect.

ObjectiveTo investigate the application value of liver/spleen CT value （CT_L/S）， controlled attenuation parameter （CAP）， and magnetic resonance imaging-proton density fat fraction （MRI-PDFF） in chronic hepatitis B （CHB） patients with hepatic steatosis. MethodsA retrospective analysis was performed for the clinical data of 213 CHB patients who underwent liver CT， CAP， and MRI-PDFF examinations in Affiliated Hospital of Yan’an University from October 2018 to December 2022. According to MRI-PDFF， the 213 patients were divided into CHB group with 111 patients （MRI-PDFF<5%） and CHB+hepatic steatosis group with 102 patients （MRI-PDFF≥5%）， among whom there were 69 patients with mild hepatic steatosis and 33 patients with moderate to severe hepatic steatosis. The independent-samples t test was used for comparison of normally distributed continuous data between groups， and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between groups. The Bland-Altman plot was used to evaluate the consistency in MRI-PDFF measurement between two physicians. The Spearman’s correlation coefficient was used to analyze the correlation between CT_L/S and MRI-PDFF and between CAP and MRI-PDFF. The receiver operating characteristic （ROC） curve was plotted and the area under the ROC curve （AUC） was calculated to investigate the value of CT_L/S and CAP in the diagnosis of different degrees of hepatic steatosis， and the DeLong test was used to compare the AUCs of the two radiological examinations. ResultsMRI-PDFF had relatively high repeatability and stability in CHB patients. There is a significant negative correlation between CT_L/S and MRI-PDFF （r=-0.800， P<0.001） and a significant positive correlation between CAP and MRI-PDFF （r=0.692， P<0.001）. Both CT_L/S and CAP had a relatively high accuracy in the diagnosis of hepatic steatosis in CHB patients， with an AUC of 0.951 and 0.902， respectively， and CT_L/S had a better accuracy than CAP （P<0.05）. In the diagnosis of mild and moderate-to-severe hepatic steatosis， CT_L/S had an AUC of 0.921 and 0.895， respectively， and CAP had an AUC of 0.859 and 0.825， respectively， suggesting that CT_L/S had a slightly higher diagnostic efficiency than CAP. ConclusionMRI-PDFF has high repeatability and stability in CHB patients， and CT_L/S and CAP have a high diagnostic value for different degrees of hepatic steatosis in CHB patients.