Liumotang comes from the Yuan dynasty's Effective Prescription Handed Down for Generations of Physicians. It is composed of six medicinal materials： Arecae Semen， Aquilariae Lignum Resinatum， Aucklandiae Radix， Linderae Radix， Rhei Radix et Rhizoma， and Aurantii Fructus. It is a classical formula for treating abdominal pain due to Qi stagnation and constipation accompanied by heat. This study systematically collated the records of Liumotang in ancient medical books and modern clinical literature and conducted in-depth analysis and textual research on its formula source， main diseases， composition， dosage， medical books， container capacity， processing， preparation method， usage， drug basis， formula meaning， and other key information， so as to provide a powerful reference for the development and clinical application of compound preparations of the classical formula Liumotang. The results show that Liumotang was first seen in Effective Prescription Handed Down for Generations of Physicians， and many medical books of the past dynasties have imitated this. In terms of drug basis， the dried and mature seeds of the palm plant Areca catechu， resin-containing wood of the Daphneaceae plant Aquilaria sinensis， the dried roots of the Asteraceae plant woody Aucklandia lappa， the dried tuber root of the Lauraceae plant Lindera aggregata， the dried roots and rhizomes of the knotweed plant， R. palmatum， R.tangutikum， and R. officinale， and the dried and unripe fruits of the citrus genus C. aurantium and its cultivated varieties from the family Rutaceae were selected. In terms of dosage， through the textual research on bowls in the Ming and Qing dynasties， combined with the conversion of medicines and bowl capacity in the Qing dynasty， it was estimated that the dosage of each drug in the Yuan dynasty was 10.86 g. In the Ming and Qing dynasties， the dosage of drugs was mostly equal， but the dosage of drugs was somewhat different. In terms of processing， preparation method， and usage， in the medical books of the past dynasties， the processing of drugs has slightly changed， but raw drugs are used in all preparations. The preparation method and usage did not change much during the Yuan， Ming， and Qing dynasties， except for certain differences in dosage. In terms of syndrome， Liumotang was first used to treat abdominal pain due to Qi stagnation and constipation accompanied by heat. Medical books of the past dynasties often omit the symptoms of heat. In modern clinical practice， Liumotang is mainly used in the digestive system and urinary system diseases and is mostly used to treat constipation-predominant irritable bowel syndrome， biliary reflux gastritis， functional constipation， slow transit constipation， and other diseases， with no adverse reactions found yet. The above results provide a reliable scientific basis for the development and clinical treatment of Liumotang compound preparations.

BACKGROUND:Computer-assisted implant surgery can improve implantation accuracy,but the use of implant template in the posterior tooth area is limited for patients with small opening and small interocclusal distance.Therefore,the digital guide has been improved. OBJECTIVE:To study the effect of modified implant template on the accuracy of assisted implantation in missing second molars. METHODS:From July 2020 to July 2023,40 patients who received digital guide plate implantation or free hand implantation to repair missing second molars were selected from First Affiliated Hospital of Guangzhou Medical University.According to the coin toss method,patients were randomly divided into a trial group(n=22;modified digital guide assisted implantation)and a control group(n=18;free hand implantation).The data of neck deviation,tip deviation,depth deviation,and angle deviation were compared between groups for preoperative and postoperative cone beam CT overlap analysis.One week after the operation,the patients'satisfaction with the operation was assessed by visual analog scale score. RESULTS AND CONCLUSION:(1)The trial group included 25 implants(12 in the upper jaw and 13 in the lower jaw);the control group included 23 implants(8 in the upper jaw and 15 in the lower jaw).The neck deviation,tip deviation,depth deviation,and angle deviation of the trial group were all smaller than those of the control group(P<0.05,P<0.001).There was no significant difference in accuracy between the maxillary and mandibular implant site in the trial group(P>0.05).(2)There was no significant difference in satisfaction with the operation between the two groups(P>0.05).(3)The results showed that improving the digital guide plate for assisted implantation for missing second molar can improve surgical accuracy and is suitable for patients with small opening and small interocclusal distance in the posterior tooth area.

Primary ciliary dyskinesia (PCD) is a genetically heterogeneous disease characterized by structural or functional abnormalities of motile cilia. It often presents clinically with recurrent respiratory infections, situs inversus, hydrocephalus, and infertility. Currently, there is no clinical treatment to directly restore ciliary motility in PCD patients.In recent years, researchers have explored gene therapy methods such as gene replacement, gene editing, and RNA replacement in vitro and in mouse models, offering potential new strategies for PCD treatment. This paper comprehensively reviews the current status of PCD gene therapy research, evaluates the potential of different gene therapies, and provides an outlook on the future treatment directions for this disease.

BACKGROUND:Tendinopathy is a musculoskeletal disorder characterized by pain and decreased mobility,with pathological changes of disturbed collagen and hyperplasia of the vasculature.Tendinopathy tends to occur in athletes,physical workers,and the elderly.One of the mechanisms of tendinopathy is the"failed healing response",and part of what causes the failed healing response is the erroneous differentiation of tendon stem/progenitor cells. OBJECTIVE:By reviewing the relevant literature,we introduce the characteristics of tendon stem/progenitor cells,summarize the factors that affect the differentiation of tendon stem/progenitor cells to tendon cells and those that lead to mis-differentiation of tendon stem/progenitor cells(differentiation to adipocytes,osteocytes and chondrocytes),and also describe the limitations of tendon stem/progenitor cells in clinical applications. METHODS:PubMed and Web of Science databases were searched for the terms"tendon stem/progenitor cells,tendinopathy,tendon injury,differentiation".The relevant literature was screened by reading and 109 articles were included for the analysis of the results. RESULTS AND CONCLUSION:(1)Tendon stem/progenitor cells are a type of stem cells that can spontaneously differentiate into tendons and have the ability to self-renew,clone,and multi-differentiate.Various external conditions acting on tendon stem/progenitor cells can lead them to differentiate in diverse directions.The specific factors that regulate the fate of tendon stem/progenitor cells are not known with certainty.When stem cell renewal and differentiation in tendons becomes abnormal,it can lead to failure of tendon healing and consequently to tendinopathy.(2)Aging,changes in extracellular matrix composition,excessive mechanical stimulation,prostaglandin E2 and interleukin-6 as well as interleukin-10 and some systemic diseases may be important in regulating the mis-differentiation of tendon stem/progenitor cells.(3)Possible favorable factors that promote the differentiation of tendon stem/progenitor cells to tenocytes are:some growth factors and cytokines,moderate mechanical stimulation and topography of the extracellular matrix,low oxygen tension,drugs,and several transcriptional genes and proteins.(4)The most desirable therapeutic tools are the regulation of endogenous tendon stem/progenitor cells or the stimulation of endogenous tendon stem/progenitor cell proliferation and differentiation by exogenous tendon stem/progenitor cells.(5)Understanding the factors that regulate mis-differentiation of tendon stem/progenitor cells may provide insight into the pathogenesis of tendinopathy and identify therapeutic targets.Elaborating on the induction of tendon stem/progenitor cell differentiation into tendons could facilitate their use in tissue engineering.

Objective To explore the prognostic value of the coronary angiography-derived index of microcirculatory resistance(caIMR)for major adverse cardiovascular events(MACE)in patients with acute ST-segment elevation myocardial infarction(STEMI)after primary percutaneous coronary intervention(PCI).Methods Between September 2019 and March 2022,541 patients diagnosed with STEMI at the Affiliated Hospital of Xuzhou Medical University were enrolled.The caIMR was calculated using the FlashAngio system(Suzhou Rainmed Medical Technology Co.,Ltd.).The patients were divided into MACE and non-MACE groups according to the occurrence of MACE during hospitalization or follow-up,with MACE defined as all-cause mortality,heart failure readmission,and unplanned revascularization.COX regression analysis,receiver operating characteristic(ROC)curves,and Kaplan-Meier survival curves were used to evaluate the prognostic value of caIMR for STEMI patients after primary PCI.Results During the 1-year follow-up,61 patients(11.28％)experienced MACE.The patients in the MACE group had higher caIMR values than those in the non-MACE group.Multivariate COX analysis showed that caIMR was an independent risk factor for MACE.ROC curve analysis showed that caIMR predicted MACE with an area under the curve of 0.688,and the optimal cutoff value was 25.3 U.caIMR significantly increased the discriminant and reclassification indexes when added to a model with clinical risk factors.The patients were further divided into a low caIMR group(caIMR＜25 U,n=377)and a high caIMR group(caIMR ≥25 U,n=164).Kaplan-Meier curve showed that patients with caIMR≥25 U had a worse prognosis.Conclusions caIMR is an independent risk factor for poor prognosis after PCI in patients with STEMI,and patients with caIMR≥25 U had a worse prognosis.

Objective:To investigate the influence of Kruppel-like factor 16 (KLF16) on the proliferation and migration of pancreatic cancer cells.Methods:Immunohistochemical images of KLF16 were collected from 171 pancreatic cancer tissues and their matched paracarcinoma normal pancreas tissues and 8 pancreatic cancer tissues only in GEPIA database. The expression of KLF16 protein was detected by immunohistochemical imaging software. The protein and mRNA expressions of pancreatic cancer cell lines AsPC-1 and MIA PaCa-2 KLF16 were detected by Western blot and quantitative fluorescence PCR. By knockdown or exogenous overexpression of KLF16, the two cells were divided into blank control group (NC group), negative control group (siRNA-NC group), downexpression KLF16 group (siKLF16 group), overexpression control group (OE-NC group) and ovexpression KLF16-OE group (KLF16-OE group). CCK-8 assay, colony formation assay and transwell chamber were used to detect cell proliferation and migration.Results:The KLF16 protein expression level (4.02±1.26 vs 1.73±1.07) and positive expression rate (91.6% vs 13.5%) in pancreatic cancer tissues were significantly higher than those in paracancer normal pancreas tissues, with statistical significance ( P<0.05). After downregulating KLF16 expression and culturing for 24, 48, 72, and 96 hours, the A450 values of both AsPC-1 (0.19±0.02 vs 0.23±0.03, 0.24±0.06 vs 0.36±0.06, 0.45±0.09 vs 0.78±0.10, 0.69±0.04 vs 0.88±0.07) and MIA PaCa-2 cells (0.20±0.03 vs 0.22±0.02, 0.29±0.05 vs 0.31±0.04, 0.47±0.06 vs 0.78±0.10, 0.71±0.02 vs 0.90±0.07) and colony counts [(36±4.32) per well vs (118.51±10.01) per well, (13.6±2.62) per well vs (83.1±9.11) per well], and the number of migrated cells [(16.67±2.05) vs (46.67±5.91), (19.67±1.69) vs (55±4.89)] all decreased significantly. However, after up-regulating the expression of KLF16 and culturing for 24, 48, 72 and 96 h, the A450 value of both AsPC-1 (0.21±0.05 vs 0.20±0.04, 0.48±0.03 vs 0.31±0.04, 0.91±0.09 vs 0.72±0.03, 1.28±0.10 vs 1.05±0.02) and MIA PaCa-2 cells (0.20±0.01 vs 0.19±0.05, 0.44±0.03 vs 0.30±0.04, 0.89±0.06 vs 0.72±0.03, 1.19±0.05 vs 1.01±0.10), and the number of cell colonies [(189±6.37)/per hole vs (108±9.62)/ per hole, (141±12.56)/ per hole vs (80.69±10.32)/ per hole]], migration cell numbers [(79±4.89) per hole vs (50.33±4.11) per hole, (79.66±3.85) per hole vs (51±4.08) per hole] all increased significantly. Conclusions:KLF16 is highly expressed in pancreatic cancer. The up-regulated expression of KLF16 in pancreatic cancer cell lines can promote the proliferation and migration of pancreatic cancer cells.

Objective:To analyze the effects of infectious complications [infected pancreatic necrosis (IPN) and extra-pancreatic infection (EPI)] on the outcomes of patients with severe acute pancreatitis (SAP), and evaluate the differences in infection time, infection site and infecting species between SAP patients with infections complications.Methods:The clinical data of 66 SAP patients with combined infectious complications admitted to Xuanwu Hospital, Capital Medical University from January 2014 to December 2020 were retrospectively analyzed, and SAP patients were divided into IPN group ( n=7), EPI group ( n=14) and co-infection (EPI+ IPN) group ( n=45) according to the type of infection. Whether the study data conformed to a normal distribution was assessed by the Shapiro-Wilk test, normally distributed measures were expressed as mean ± standard deviation ( ± s), and ANOVA was used for comparison between groups; skewed measures were expressed as median (interquartile range) [ M ( Q1, Q3)], and the rank-sum test was used for comparison between groups. Bonferroni correction was used for multiple group comparisons ( P value significance level reduced to 0.017). Quantitative data were compared between groups using the χ2 test or Fisher's exact probability method. Results:There were no statistical differences between the three groups in terms of baseline data at admission (gender, age, etiology, modified CTSI score, degree of pancreatic necrosis, and number of organ failure) ( P>0.05), patients in the EPI group were referred earlier than the other two groups ( P<0.05). In clinical treatment, patients in the IPN group and co-infection group required multiple minimally invasive interventions compared with those in the EPI group ( P<0.05), and the number of patients requiring combined nutritional support, length of intensive care unit stay, and total length of hospital stay were higher in the co-infection group than in the other two groups ( P<0.05). In addition, 360 strains of pathogenic bacteria were cultured in this study, with Gram-negative bacteria being the most common, and patients with SAP were more likely to have EPI in the early stage of disease onset, with bacteremia and respiratory tract infections in the early stage (≤14 d), and bacteremia, urinary tract infections, and catheter-associated infections in the late stage (>14 d). Conclusions:Among patients with SAP, patients in the co-infection group had higher surgical intervention, nutritional support and length of hospital stay than those in the single infection group. It is advisable to prioritize EPI in SAP patients with suspected infections, and the common infectious strains in SAP patients are still predominantly Gram-negative bacteria, and clinicians need to adjust the treatment plan in a timely manner according to the changes in patients′ conditions.

Psoriatic arthritis (PsA) is a complicated psoriasis comorbidity with manifestations of psoriatic skin and arthritic joints, and tailoring specific treatment strategies for simultaneously delivering different drugs to different action sites in PsA remains challenging. We developed a need-based layered dissolving microneedle (MN) system loading immunosuppressant tacrolimus (TAC) and anti-inflammatory diclofenac (DIC) in different layers of MNs,

Malignant tumors usually have no obvious clinical symptoms in the early stage. Most patients are already in the advanced stage when they are diagnosed. Some patients have lost the opportunity for operation, resulting in poor prognosis. Therefore, how to find the best therapeutic target for such patients and improve the prognosis of patients has gradually become the focus of scholar′s attention. Recently, Kruppel-like factor (KLF) is a transcriptional regulator that can bind to the target DNA, and its family plays an important role in the occurrence and development of malignant tumors. It has also been confirmed that the KLF family affects the proliferation, differentiation and migration of tumor cells, but the specific mechanism is still not fully elucidate. Consequently, in order to further explored the effect of the KLF family on tumors, this study intends to briefly review the roles and regulatory mechanisms of the KLF family in the cell proliferation, differentiation and migration of malignant tumors, hoping to provide new target for the biological treatment of tumors.

Objective:To investigate the computed tomography (CT) features and diagnosis and treatment of emphysema pancreatitis (EP).Methods:The retrospective and descriptive study was conducted. The clinical and imaging data of 12 patients with EP who were admitted to Xuanwu Hospital of Capital Medical University from January 2017 to June 2020 were collected. There were 10 males and 2 females, aged from 25 to 71 years, with a median age of 42 years. All patients received CT examination. Step-up treatment or one-step surgical treatment was performed on patients according to their conditions. Observation indicators: (1) CT features; (2) bacteriological characteristics; (3) treatment and follow-up. Follow-up using outpatient examination was conducted at postoperative 1, 3, 6 months to detect survival of patients up to January 2021. Measurement data with normal distribution were represented as Mean± SD, and measurement data with skewed distribution were represented as M (range). Count data were described as absolute numbers. Results:(1) CT features: 1 of the 12 patients underwent abdominal+pelvic CT plain scan, and 11 cases underwent abdominal+pelvic CT plain scan and enhanced scan of arterial and portal venous phase. CT examination of 12 patients showed diffuse enlargement of the pancreas, unclear borders and a large amount of exudation around the pancreas. Pancreatic necrotic tissues accounted for >30% of the total pancreatic volume; the Balthazar CT score was 10 (range, 8-10). Of the 12 patients, 5 cases showed that the exudation or necrosis involved bilateral prerenal fascia, 7 cases only involved the left prerenal fascia; the necrotic infection area of 11 patients formed obvious wraps. The distribution of pancreatic, peripancreatic infection and gas in 12 patients: 6 cases had pancreatic, peripancreatic infection and gas located in Ⅰ+Ⅱa area, 3 cases located in Ⅰ+Ⅱa+Ⅲ area, 2 cases located in Ⅰ+Ⅲ area, and 1 case located in Ⅰ area. There was gas in the pancreatic parenchyma in 12 patients, with fluid in the abdominal cavity and pelvic cavity. (2) Bacteriological characteristics: the culture results of peripancreatic necrotic issues in 12 patients were all positive for the pathogenic specimens, and 27 strains were cultured. Klebsiella pneumoniae was the most common in the culture of necrosis from 12 patients, followed by Escherichia coli and Enterococcus bacteria. Fungus was found in the culture of necrosis from 1 patient. Of the 12 patients, 5 had negative blood cultures and 7 had positive blood cultures. A total of 14 strains were cultured, with Klebsiella pneumoniae being the most common; fungus was found in the blood culture from 4 patients. (3) Treatment and follow-up: 1 patient underwent percutaneous catheter drainage, 7 underwent step-up surgical treatment, 4 underwent one-step surgical treatment; 11 patients undergoing surgical treatment received laparoscopic-assisted removal of pancreatic necrotic tissue, including 1 case with exploratory laparotomy due to abdominal hemorrhage. Of the 11 patients undergoing surgical treatment, 7 cases received the left retroperitoneal approach surgery (including 1 case combined with the upper abdominal median approach), 2 cases received the upper abdominal median transomental sac approach surgery, 1 case received the right retroperitoneal approach surgery, and 1 case received the left rectus abdominis approach surgery. The number of operations of all the 11 patients were (3.1±0.9)times, the number of step-up treatments was (3.6±0.8)times, and the number of one-step surgery was (2.3±0.5)times. Nine of 12 patients had organ dysfunction that lasted for more than 48 hours during the treatment, which received surgical treatment after organ support and anti-infection therapy. All the 12 patients were followed up for 6 months after operation, of which 9 cases were cured after treatment and 3 cases died including 1 case dying of bleeding and 2 cases dying of septic shock combined with multiple organ failure.Conclusions:Emphysema pancreatitis is complicated by pancreatic necrosis, which is characterized by pancreatic and peripancreatic gas accumulation on CT. Most patients with EP have organ failure. Surgery is an important treatment for EP.