Lysosomes represent a promising target for cancer therapy and reducing drug resistance. However, the short treatment time and low efficiency of lysosomal targeting have limited the application in lysosome-targeting anticancer drugs. In this study, we proposed an adhesive-bandage approach and synthesized a new lysosomal targeting drug, namely long-term lysosome-targeting anticancer drug (LLAD). It contains a SLC38A9-targeting covalently bound moiety and an alkaline component both to prolong the inhibition of SLC38A9 in lysosomes and alkalinize lysosomes. Upon short term and low-dose treatment of HeLa cells, at passage 0, with LLAD, it rapidly alkalinized lysosomes and also can be detected in lysosomes even at passage 15. LLAD induced apoptosis in HeLa cells through long-term lysosomal damage, and showed better long-term anticancer effect than cisplatin in vivo. Overall, our study paves the way for developing long-term lysosomal targeting drugs to treat cancer and overcome the drug resistance of cancer cells, and also provides a candidate drug, LLAD, for treating cancer.

Objective This study compared the effects of intraoperative intercostal nerve block(ICNB)and preoperative ultrasound-guided paravertebral block(US-PVB)on postoperative complications in patients undergoing thoracoscopic lung surgery.Methods Data from 240 patients who underwent video-assisted thoracoscopic lung surgery under general anesthesia between January 2019 and December 2020 was retrospectively collected.These patients either received intraoperative intercostal nerve block(ICNB)(202 cases)or pre-operative ultrasound-guided paravertebral block(US-PVB)(38 cases).The incidence rates of overall postoperative complications,postoperative pulmonary complications,postoperative cardiac complications,postoperative cerebral complications,other postoperative complications,remedial analgesia requirement in the PACU,intraoperative fentanyl consumption,postoperative oral morphine equivalent(OME),perioperative OME,duration of postoperative drainage tube,postoperative ICU stay,and postoperative hospital stay were compared between the ICNB group and the US-PVB group.Univariate and multivariate regression were used to analyze the effects of different analgesia methods on postoperative complicationsResults There was no statistically significant difference in postoperative overall complications between the ICNB group and the US-PVB group(P＞0.05).In the univariate analysis,no significant difference was found in the overall postoperative complications between the ICNB group(16.3％)and the US-PVB group(13.2％)(OR=0.642,95％CI 0.239-1.786;P=0.404.Multivariate analysis also did not reveal any differences between the two groups(OR=0.843,95％CI 0.299-2.377;P=0746).For the analysis of secondary outcomes,according to multivariate analysis,there was no significant difference between the two groups in postoperative pulmonary complications,postoperative cardiac complications,other postoperative complications,remedial analgesia requirement in the PACU,intraoperative fentanyl consumption,postoperative OME,perioperative OME,duration of postoperative drainage tube,postoperative ICU stay or postoperative hospital stay(P＞0.05).Conclusion In this study,we found no difference in postoperative complications between intraoperative ICNB and preoperative US-PVB.

Iron is indispensable for the viablility of nearly all living organisms, and it is imperative for cells, tissues, and organisms to acquire this essential metal sufficiently and maintain its metabolic stability for survival. Disruption of iron homeostasis can lead to the development of various diseases. There is a robust connection between iron metabolism and infection, immunity, inflammation, and aging, suggesting that disorders in iron metabolism may contribute to the pathogenesis of arthritis. Numerous studies have focused on the significant role of iron metabolism in the development of arthritis and its potential for targeted drug therapy. Targeting iron metabolism offers a promising approach for individualized treatment of arthritis. Therefore, this review aimed to investigate the mechanisms by which the body maintains iron metabolism and the impacts of iron and iron metabolism disorders on arthritis. Furthermore, this review aimed to identify potential therapeutic targets and active substances related to iron metabolism, which could provide promising research directions in this field.

ObjectiveIt was reported that the transthyretin (TTR) has a neuroprotective effect on Alzheimer’s disease (AD), which is manifested by the ability of TTR to inhibit the pathological aggregation of amyloid beta protein (Aβ). In this work, we investigated the mechanism of the interactions between TTR and Aβ at the molecular level to reveal the neuroprotective effect of TTR on AD. MethodsProtein-protein docking was used to explore the models of interaction between different structural forms of TTR and Aβ, and molecular dynamics simulation was further applied to investigate the dynamic process of the interaction between the two. ResultsBoth TTR tetramer and monomer can interact with Aβ monomer, and the thyroxine-binding channel of TTR tetramer is the main binding site of Aβ monomer. In addition, the EF helix and EF loop of TTR tetramer were also able to bind Aβ monomer. When the TTR tetramer dissociates, the hydrophobic site of the internal TTR monomer is exposed, which has a strong affinity for Aβ monomer. For the interaction between Aβ aggregates and TTR, a higher degree of aggregation can be formed between TTR monomer and Aβ aggregates due to the β-sheet-rich property of TTR monomer and Aβ aggregates, which may therefore reduce the cytotoxicity of Aβ aggregates. ConclusionBoth TTR tetramer and monomer can inhibit Aβ aggregation by “sequestering” Aβ monomer, while TTR monomer can reduce the cytotoxicity of Aβ aggregates by forming large co-aggregation with Aβ aggregates. This work can provide an important theoretical basis for the design and discovery of anti-AD drugs based on the neuroprotective effects of TTR.

Objective To investigate the clinical effect of unilateral percutaneous vertebroplasty(PVP)combined with 3D printing technology for the treatment of thoracolumbar osteoporotic compression fracture.Methods A total of 77 patients with thoracolumbar osteoporotic compression fractures from October 2020 to April 2022 were included in the study,all of which were vertebral body compression fractures caused by trauma.According to different treatment methods,they were di-vided into experimental group and control group.Thirty-two patients used 3D printing technology to improve unilateral transpedicle puncture vertebroplasty in the experimental group,there were 5 males and 27 females,aged from 63 to 91 years old with an average of(77.59±8.75)years old.Forty-five patients were treated with traditional bilateral pedicle puncture vertebroplasty,including 7 males and 38 females,aged from 60 to 88 years old with an average of(74.89±7.37)years old.Operation time,intraoperative C-arm X-ray times,anesthetic dosage,bone cement injection amount,bone cement diffusion good and good rate,complications,vertebral height,kyphotic angle(Cobb angle),visual analogue scale(VAS),Oswestry disability index(ODI)and other indicators were recorded before and after surgery,and statistically analyzed.Results All patients were followed up for 6 to 23 months,with preoperative imaging studies,confirmed for thoracolumbar osteoporosis com-pression fractures,two groups of patients with postoperative complications,no special two groups of patients'age,gender,body mass index(BMI),time were injured,the injured vertebral distribution had no statistical difference(P＞0.05),comparable data.Two groups of patients with bone cement injection,bone cement dispersion rate,preoperative and postoperative vertebral body height,protruding after spine angle(Cobb angle),VAS,ODI had no statistical difference(P＞0.05).The operative time,intra-operative fluoroscopy times and anesthetic dosage were statistically different between the two groups(P＜0.05).Compared with the traditional bilateral puncture group,the modified unilateral puncture group combined with 3D printing technology had shorter operation time,fewer intraoperative fluoroscopy times and less anesthetic dosage.The height of anterior vertebral edge,kyphosis angle(Cobb angle),VAS score and ODI of the affected vertebrae were statistically different between two groups at each time point after surgery(P＜0.05).Conclusion In the treatment of thoracolumbar osteoporotic compression fractures,3D printing technology is used to improve unilateral puncture PVP,which is convenient and simple,less trauma,short operation time,fewer fluoroscopy times,satisfactory distribution of bone cement,vertebral height recovery and kyphotic Angle correction,and good functional improvement.

OBJECTIVE To investigate the effects of Taohong siwu decoction modified granules on podocyte epithelial- mesenchymal-transition （EMT） and renal fibrosis in diabetic kidney disease （DKD） model rats. METHODS Eight rats were selected as normal group （ordinary feed）； the remaining rats were given a high-glucose and high-fat diet combined with intraperitoneal injection of streptozotocin （35 mg/kg） to induce the DKD model. Model rats were randomly divided into model group， irbesartan group [positive control， 13.5 mg/（kg·d）] and modified Taohong siwu decoction group [6.48 g/（kg·d）]， with 8 rats in each group. All groups were given relevant medicine intragastrically， once a day， for 16 consecutive weeks. Twenty-four- hour urinary total protein （24 h UTP） was detected at the end of the 4th， 8th， 12th and 16th week of administration. After the last medication， the body mass， water intake， food intake， urine output， the levels of fasting blood glucose， serum creatinine （Scr） and blood urea nitrogen （BUN） as well as mRNA and protein expressions of P-cadherin， nephrin， α -smooth muscle actin （α-SMA）， Wilms’ tumor gene 1 （WT1）， transforming growth factor-β1（ TGF-β1） and type Ⅳ collagen （Col-Ⅳ） in renal tissue were determined. The pathological and morphological changes in renal tissue were observed and the thickness of the glomerular basement membrane was determined. RESULTS Compared with the model group， 24 h UTP of rats was significantly decreased in modified Taohong siwu decoction group since the 8th weekend （P＜0.05）； the body weight of rats increased significantly， but the amount of water intake and urine decreased significantly； Scr and BUN level， mRNA expression of α-SMA， mRNA and protein expressions of TGF-β1 and Col-Ⅳ were significantly reduced， while the mRNA expressions of P-cadherin， nephrin and WT1 were increased significantly （P＜0.05）； the protein deposition of α-SMA was reduced， protein depositions of P-cadherin， nephrin and WT1 were increased； the pathological damage and fibrosis of renal tissue were relieved； the thickness of glomerular basement membrane was decreased significantly （P＜0.05）. CONCLUSIONS Taohong siwu decoction modified granules can inhibit the EMT of podocyte in DKD model rats， and alleviate renal pathological damage and podocyte damage， thus protecting renal function， and delaying the process of renal fibrosis.

OBJECTIVE To investigate the effects of Taohong siwu decoction modified granules on podocyte epithelial- mesenchymal-transition （EMT） and renal fibrosis in diabetic kidney disease （DKD） model rats. METHODS Eight rats were selected as normal group （ordinary feed）； the remaining rats were given a high-glucose and high-fat diet combined with intraperitoneal injection of streptozotocin （35 mg/kg） to induce the DKD model. Model rats were randomly divided into model group， irbesartan group [positive control， 13.5 mg/（kg·d）] and modified Taohong siwu decoction group [6.48 g/（kg·d）]， with 8 rats in each group. All groups were given relevant medicine intragastrically， once a day， for 16 consecutive weeks. Twenty-four- hour urinary total protein （24 h UTP） was detected at the end of the 4th， 8th， 12th and 16th week of administration. After the last medication， the body mass， water intake， food intake， urine output， the levels of fasting blood glucose， serum creatinine （Scr） and blood urea nitrogen （BUN） as well as mRNA and protein expressions of P-cadherin， nephrin， α -smooth muscle actin （α-SMA）， Wilms’ tumor gene 1 （WT1）， transforming growth factor-β1（ TGF-β1） and type Ⅳ collagen （Col-Ⅳ） in renal tissue were determined. The pathological and morphological changes in renal tissue were observed and the thickness of the glomerular basement membrane was determined. RESULTS Compared with the model group， 24 h UTP of rats was significantly decreased in modified Taohong siwu decoction group since the 8th weekend （P＜0.05）； the body weight of rats increased significantly， but the amount of water intake and urine decreased significantly； Scr and BUN level， mRNA expression of α-SMA， mRNA and protein expressions of TGF-β1 and Col-Ⅳ were significantly reduced， while the mRNA expressions of P-cadherin， nephrin and WT1 were increased significantly （P＜0.05）； the protein deposition of α-SMA was reduced， protein depositions of P-cadherin， nephrin and WT1 were increased； the pathological damage and fibrosis of renal tissue were relieved； the thickness of glomerular basement membrane was decreased significantly （P＜0.05）. CONCLUSIONS Taohong siwu decoction modified granules can inhibit the EMT of podocyte in DKD model rats， and alleviate renal pathological damage and podocyte damage， thus protecting renal function， and delaying the process of renal fibrosis.

【Objective】 To explore the efficacy of Mathieu combined with tongue-shaped flap covering in children with distal hypospadias and micropenis head deformity. 【Methods】 The clinical data of 72 patients with distal hypospadias complicated with micropenis treated during Jan.2018 and Jun.2021 were retrospectively analyzed, including 35 patients who underwent modified Mathieu combined with tongue-shaped flap and external urethral orificium (study group), and 37 patients who underwent traditional Mathieu (control group). Urethral stricture, urethral fistula, urethral diverticulum and penile head cleft were compared between the two groups. 【Results】 Urinary fistula occurred in 2 cases (5.27%) and 9 cases (24.32%) in the study group and control group, respectively, the incidence being much lower in the study group (P=0.028). Urethral stricture occurred in 1 case (2.86%) and 1 case (2.70%) in the study group and control group, respectively; penile head dehiscence in 1 case (2.86%) and 3 cases (8.11%); urethral diverticulum in 0 case (0%) and 2 cases (5.41%). There were no significant differences between the two groups in the incidence of urethral stricture, urethral dehiscence and urethral diverticulum (P>0.05). 【Conclusion】 Mathieu combined with tongue-shaped flap covering to treat children with distal hypospadias with micropenis head deformity can reduce the incidence of postoperative complications, achieve high surgical satisfaction and appearance satisfaction in the first phase, reduce harm caused by surgery, and promote patients’ psychological health.

Humans ; Beijing ; Hand, Foot and Mouth Disease/epidemiology* ; China/epidemiology*

Rotator cuff injury often leads to shoulder pain and dysfunction. For the injured rotator cuff tendon without continuous interruption, conservative treatment is often used. However, the shoulder is used frequent in daily life, which makes that the rotator cuff injury generally shows gradual aggravation and eventually progresses to complete tear due to poor blood supply of the rotator cuff tendon tissue and weak repair ability. In order to reverse the pathophysiological changes after rotator cuff injury and promote the repair of injured rotator cuff tendon, a series of conservative treatments for rotator cuff injury have been explored. Extracorporeal shock wave therapy (ESWT) is one of the representative treatments, but its molecular biological mechanism in promoting rotator cuff repair is still unclear. Therefore, the authors review the progress of ESWT for rotator cuff injury from aspects of the molecular biological mechanism and clinical application status, so as to provide a reference for future researches and clinical application of ESWT.