ObjectiveTo analyze the clinical characteristics and the use of traditional Chinese medicine （TCM） therapy in cancer patients with COVID-19， and to provide reference for making TCM prevention and treatment strategies and determining diagnosis and treatment priorities for patients with malignant tumors in the COVID-19 epidemic. MethodsThe medical records of 225 malignant tumor cases with COVID-19 who were admitted to 7 national research centers from January 1st to 20th， 2023 were retrospectively collected， and the main symptoms and duration after infection， nucleic acid negative conversion time， use of TCM therapy， and changes in adverse reactions after resuming anti-tumor treatment were analyzed. ResultsA total of 222 malignant tumor patients with COVID-19 were included in the analysis， involving 205 mild cases and 17 moderate cases. The top four most frequently reported clinical symptoms were fever （165 cases）， expectoration or dry cough （99 cases）， decreased appetite （95 cases） and fatigue （85 cases）， of which 40 expectoration or dry cough cases ， 37 fatigue cases and 29 decreased appetite cases lasted for more than 14 days. One hundred and five patients with nucleic acid detection report had a median negative conversion time of 14 days. The nucleic acid negative conversion time was significantly longer in patients with lung cancer compared to those with digestive system malignant tumors， and in those with myelosuppression than those without （P＜0.01）. During the infection period， 47.30% （105/222） of the patients used Chinese patent medicine， and 21.17% （47/222） were treated with herbal decoctions. The use of TCM in patients during the prevention and rehabilitation period， was 1.80%（4/222） and 7.21%（16/222）， respectively. Fifty-five patients resumed anti-tumor treatment after nucleic acid negative conversion， and received TCM simultaneously. Observed adverse reactions， including gastrointestinal reactions， bone marrow suppression， and neurotoxicity， were all grade 1 to 2， and no new adverse events occurred during follow-up. ConclusionCertain malignant tumor patients with COVID-19 had prolonged symptoms and nucleic acid negative conversion time Rational use of TCM can help to promote the rehabilitation of the patients and ensure the smooth process of anti-tumor treatment after infection.

Objective To investigate the effects of ATP-binding cassette subfamily B transporter 6 subfamily B(ABCB6)on cognitive dysfunction in Alzheimer's disease(AD)rats and its possible potential regulatory molecular mechanisms.Methods Amyloid β-protein(Aβ)was injected to construct the AD mouse model in vivo.Water maze test and Y maze test were used to evaluate the learning and memory ability and space exploration ability of rats.An in vitro AD cell model was constructed by HT22 cells and Aβ.The binding relationship between YTH domain containing 1(YTHDC1)and ABCB6 was analyzed by RNA immuniprecipitation(RIP).Quantitative real time polymerase chain reaction(qRT-PCR)was used to detect overexpression and knockdown transfection efficiency.Western blot analysis was performed to detect the expression levels of YTHDC1 and ABCB6 proteins,as well as ferroptosis related proteins[Solute Carrier Family 7 Member 11(SLC7A11),Glutathione peroxidase 4(GPX4)].Cell viability was detected with CCK-8.Malondialdehyde(MDA),Glutathione(GSH),Reactive oxygen species(ROS)levels and Fe2+content were analyzed by the assay kit.Results The ABCB6 mRNA(3.51±0.17 vs 1.02±0.01,3.45±0.21 vs 1.02±0.01)and protein(3.25±0.14 vs 1.01±0.01,3.14±0.16 vs 1.01±0.01)levels in the hippocampus of AD mice and Aβ-induced HT22 cells were up-regulated,and the differences were statistically significant(t=-46.238,-20.349;-50.468,-23.013,all P<0.001).Knocking down ABCB6 decreased the time and distance of AD mice reaching the platform,and increased the ratio of spontaneous exchange rate to the number of times of entered the new arm(t=27.007,11.264,24.414,19.901,all P<0.001).Knockdown ABCB6 promoted HT22 cell proliferation,decreased levels of MDA and Fe2+,increased GSH levels,reduced ROS generation,and promoted expression of SLC7A11 and GPX4 proteins(t=2.883～26.122,all P<0.05).YTHDC1 protein promoted its stability by binding to ABCB6 mRNA and up-regulated the expression of ABCB6 protein.Knockdown of YTHDC1 decreased ABCB6 protein level(t=18.504,P<0.001),promoted the proliferation of HT22 cells,increased GSH content,SLC7A11 and GPX4 protein levels,decreased MDA and Fe2+content,and inhibited ROS production(t=4.404～14.486,all P<0.05).Knocking down YTHDC1 could improve the learning and memory ability and spatial exploration ability of AD mice.Over-expression of ABCB6 reversed the effects of YTHDC1 knockdown on ferroptosis in HT22 cells and cognitive dysfunction in AD mice.Conclusion YTHDC1 may induce ferroptosis of neuronal cells by mediating the up-regulation of ABCB6,thus promoting cognitive dysfunction in AD mice.

To understand the current quality status and rearing situation of Bombyx Batryticatus, the authors collected 102 batches of Bombyx Batryticatus from different main producing areas and five major Chinese medicine markets from 2016 to 2018, and measured the properties and quality of the silk gland, to clarify the quality status of Bombyx Batryticatus from different producing areas and markets. In addition, 35 batches of Bombyx Batryticatus from 2019 to 2022 were used to verify the silk gland after revision. Moreover, Beauveria Bassiana was inoculated in the silkworm of 4-5 instars, and standardized rearing was carried out until they die. The death rate and the quality of Bombyx Batryticatus were measured to determine the differences in Bombyx Batryticatus of different instars, and explore the rationality of the infection age of Bombyx Batryticatus in Chinese Pharmacopoeia(2020). The results revealed that in the 102 batches of Bombyx Batryticatus, the qualification rate of silk gland was low; the content of total ash far exceeded the standard; the content of beauvericin varied greatly. The qualification rate of the silk gland of the 35 batches of Bombyx Batryticatus was only 47.49%, which could be increased to 73.00% if the number of silk gland was 2 to 4. The death rate of Bombyx Batryticatus at different infection ages was quite different, with uneven quality. Generally, the yield of Bombyx Batryticatus inoculated on the first day of the fifth instar was high with good quality. Therefore, in combination with the quality and actual production of Bombyx Batryticatus, the following suggestions were proposed for revision of Bombyx Batryticatus in Chinese Pharmacopoeia(2025): The number of silk gland should be revised as 2-4 bright brown or bright black silk glands, after which, the quality of Bombyx Batryticatus could be guaranteed, and the "quality identification based on character" could also be reflected scientifically; the content determination index that the content of beauvericin shall not be less than 0.017% should be added to better control the quality of Bombyx Batryticatus; the infection age should be revised as the first day of the fifth instar to narrow the age span, which could better fit the actual production and ensure the quality of Bombyx Batryticatus.
Animals ; Bombyx ; Medicine, East Asian Traditional ; Silk ; Larva

ObjectiveTo investigate the effect of myosin heavy chain 7 gene-derived miRNA-208b-3p on the fibrotic phenotype of cardiac fibroblasts. MethodsmiRNA chip array was performed to detect the dysregulated miRNAs in the myocardium of diabetic db/db mice and db/m control mice. Neonatal mouse ventricular cardiomyocytes （NMVCs） and cardiac fibroblasts （CFs） were isolated from C57BL/6 mice and cultured. Real-time quantitative PCR （RT-qPCR） was conducted to determine the expression of miR-208b-3p in mouse CFs and NMVCs subjected to angiotensinⅡ（AngⅡ） and high glucose plus glucose oxidase （G/Go） treatment， respectively. Cell counting kit 8（CCk8） assay， flow cytometry and determination of fibrosis-related protein， including COL1A1， COL3A1and α-SMA， were performed in mCFs transfected with miR-208b-3p. Dual luciferase reporter assay was performed to confirm the interaction between miR-208b-3p and the 3'-UTR of metal response element binding transcription factor 2 （Mtf2） and progesterone receptor membrane component 1（Pgrmc1）， respectively. The expressions of Mtf2 and Pgrmc1 at the mRNA and protein levels in mCFs after miR-208b-3p mimic transfection were determined using RT-qPCR and Western blot assay， respectively. The small interfering RNA （siRNA） was used to inhibit Mtf2 and Pgrmc1 expression in mCFs， and the effects of Mtf2 siRNA， Pgrmc1 siRNA and miR-208b-3p on fibrosis-related protein expression in mCFs were investigated. ResultsResults of miRNA chip array and RT-qPCR assay showed that miR-208b-3p was up-regulated in the myocardium of the diabetic db/db mice. miR-208b precursor and the host gene of Myh7 were consistently increased in db/db mice. miR-208b-3p and Myh7 mRNA were expressed in mCFs and NMVCs， but the levels of miR-208b-3p and Myh7 mRNA in NMVCs were much higher than those in mCFs. miR-208b-3p was up-regulated in mCFs and NMVCs subjected to Ang Ⅱ and G/Go treatment， respectively. miR-208b-3p could significantly enhance fibrosis-related protein， including COL1A1， COL3A1 and α-SMA， in mCFs， without affecting the proliferation activity and cell cycle distribution of mCFs. Dual luciferase reporter assay revealed the interactions of miR-208b-3p with the 3'-UTR of Mtf2 and Pgrmc1. The results of RT-qPCR and Western blotting confirmed that miR-208b-3p inhibited Mtf2 and Pgrmc1 expression at the post- transcriptional level. Transfection with miR-208b-3p mimic， Mtf2 siRNA and Pgrmc1 siRNA could consistently enhance the fibrosis-related protein expression in the cardiac fibroblasts. ConclusionsmiR-208b-3p enhances fibrosis-related gene expression by targeting Mtf2 and Pgrmc1in mCFs.

The existing dentin bonding systems based on acid-etching technique lead to the loss of both extrafibrillar and intrafibrillar minerals from dentin collagen, causing excessive demineralization. Because resin monomers can not infiltrate the intrafibrillar spaces of demineralized collagen matrix, degradation of exposed collagen and resin hydrolysis subsequently occur within the hybrid layer, which seriously jeopardizing the longevity of resin-dentin bonding. Collagen extrafibrillar demineralization can effectively avoid the structural defects within the resin-dentin interface caused by acid-etching technique and improve the durability of resin-dentin bonding, by preserving intrafibrillar minerals and selectively demineralizing extrafibrillar dentin. The mechanism and research progress of collagen extrafibrillar demineralization in dentin bonding are reviewed in the paper.
Humans ; Collagen ; Dental Bonding ; Dentin/chemistry* ; Dentin-Bonding Agents/chemistry* ; Materials Testing ; Minerals ; Resin Cements/chemistry* ; Tooth Demineralization

OBJECTIVE: To assess the efficacy and safety of Guanxin Danshen Dripping Pills (GXDS) in the treatment of depression or anxiety in patients with coronary heart disease (CHD) after percutaneous coronary intervention (PCI). METHODS: From September 2017 to June 2019, 200 CHD patients after PCI with depression and anxiety were included and randomly divided into GXDS (100 cases) and placebo control groups (100 cases) by block randomization and a random number table. Patients in the GXDS and control groups were given GXDS and placebo, respectively, 0.4 g each time, 3 times daily for 12 weeks. The primary outcomes were scores of Patient Health Questionnaire-9 (PHQ-9), Generalized Anxiety Scale (GAD-7) and the Seattle Angina Pectoris Scale (SAQ). The secondary outcomes included 12 Health Survey Summary Form (SF-12) scores and the first onset time and incidence of major adverse cardiovascular events (MACEs). Other indices including blood pressure, blood lipids, microcirculation and inflammatory-related indices, etc. were monitored at baseline, week 4, and week 12. RESULTS: In the full analysis set (200 cases), after treatment, the PHQ-9 and GAD-7 scores in the GXDS group were considerably lower than those in the control group (P<0.05). Compared with the baseline, the total PHQ-9 scores of the experimental and control groups decreased by 3.97 and 1.18, respectively. The corrected mean difference between the two groups was -2.78 (95% CI: -3.47, -2.10; P<0.001). The total GAD-7 score in the GXDS group decreased by 3.48% compared with the baseline level, while that of the placebo group decreased by 1.13%. The corrected mean difference between the two groups was -2.35 (95% CI: -2.95, -1.76; P<0.001). The degree of improvement in SAQ score, SF-12 score, endothelin and high-sensitive C-reactive protein levels in the GXDS group were substantially superior than those in the placebo group, and the differences between the two groups were statistically significant (P<0.05). Similar results were obtained in the per protocol population analysis of 177 patients. Three cases of MACES were reported in this study (1 in the GXDS group and 2 in the placebo group), and no serious adverse events occurred. CONCLUSIONS GXDS can significantly alleviate depression and anxiety, relieve symptoms of angina, and improve quality of life in patients with CHD after PCI. (Registration No. ChiCTR1800014291).
Humans ; Percutaneous Coronary Intervention/adverse effects* ; Quality of Life ; Depression ; Coronary Disease/drug therapy* ; Drugs, Chinese Herbal/therapeutic use* ; Angina Pectoris/drug therapy* ; Prognosis ; Anxiety ; Treatment Outcome ; Double-Blind Method

Objective    To systematically evaluate the efficacy of tubular stomach and whole stomach reconstruction in the treatment of esophageal cancer. Methods    We searched PubMed, Web of Science, The Cochrane Library, EMbase, CNKI, Wanfang Data, VIP and CBM databases to collect the randomized controlled trial (RCT) studies on the efficacy comparison between tubular stomach and total gastric reconstruction of esophagus in esophagectomy from their date of inception to May 2019. Then meta-analysis was performed by using RevMan 5.3 software. Results    A total of Twenty-nine RCTs were included, and 3 012 patients were involved. The results of meta-analysis showed that the postoperative complications such as anastomotic fistula [RR=0.64, 95%CI (0.50, 0.83), P=0.000 6], anastomotic stenosis [RR=0.65, 95%CI (0.50, 0.86), P=0.002], thoracic gastric syndrome [RR=0.19, 95%CI (0.13, 0.27), P<0.001], reflux esophagitis [RR=0.23, 95%CI (0.19, 0.30), P<0.001], gastric emptying disorder [RR=0.39, 95%CI (0.27, 0.57), P<0.001] and pulmonary infection [RR=0.44, 95%CI (0.31, 0.62), P<0.001] were significantly reduced, and the postoperative quality of life score and satisfaction were higher at 6 months and 1 year in the tubular stomach group (P<0.05). In terms of intraoperative blood loss and postoperative hospital stay, they were better in the tubular stomach group than those in the whole stomach group (P<0.05). However, there was no statistically significant difference between the two groups in operation time, postoperative gastrointestinal decompression time, postoperative closed drainage time, postoperative 1-year, 2-year and 3-year survival rate, postoperative quality of life score at 3 weeks and 3 months, and postoperative life satisfaction at 3 weeks. Conclusion    The tubular stomach is more advantageous than the whole stomach in the reconstruction of esophagus after esophagectomy.

Objective:To evaluate the clinical efficacy and prognosis of robotic-assisted thoracoscopic surgery (RATS )compared with traditional thoracoscopic surgery (VATS) in the treatment of thymoma.Methods:The clinical data of 128 patients with thymoma who underwent surgery in our hospital from January 2006 to November 2019 were retrospectively analyzed, There were 83 males and 45 females. The age ranged from 23 to 76 years old, with an average of (45.89±13.84) years old. The patients were divided into RATS group (58 cases) and VATS group (70 cases). Cox proportional risk model was used to analyze the factors affecting the postoperative hospital stay. Results:Compared with VATS group, RATS group patients had longer operation time[(128.61±32.13)min vs. (96.42±45.37)min, P=0.036], less intraoperative blood loss[(35.25±5.62)ml vs. (58.36±3.65)ml, P=0.016], less blood transfusion (1.72% vs. 7.14%, P=0.029), and less postoperative complications (17.2% vs. 22.9%, P=0.039). The average total hospitalization cost was higher [(56 721.18±98 457.24) yuan vs. (25 135.68±12 403.29) yuan, P<0.001], and the average postoperative hospitalization time was shorter[(4.15±1.51) days vs. (6.65±2.74)days, P<0.001], all with statistically significant differences. However, there was no statistical differences in conversion to thoracotomy, intraoperative complication, the surgical margin was positive, postoperative infectionpostoperative drainage amount, postoperative drainage time, expenses for medicine and anesthetic fee( P>0.05). Multiple linear regression models showed that different groups ( P=0.013), age ( P=0.025), combined with myasthenia gr avis( P=0.047), combined with underlying disease( P=0.016), intraoperative blood loss( P=0.034), conversion to thoracotomy ( P=0.024), postoperative infection( P=0.008), postoperative complications( P=0.026) and postoperative drainage time ( P=0.031) affected postoperative hospital stay. Conclusion:Robot-assisted thymectomy is a safe and effective method for the treatment of thymomas. RATS recover faster after surgery with fewer complications and shorter hospital stays than RATS after thoracoscopic surgery, but more large, high-quality studies are needed to evaluate the effectiveness of RATS.

The early diagnosis of lung cancer and the corresponding treatment measures are crucial factors to reduce mortality rate. As an emerging technology, artificial intelligence has developed rapidly and it is used in the medical field to provide new ideas for the early diagnosis of lung cancer, which has achieved remarkable results. Artificial intelligence greatly eases the pressure of clinical work, changes the current medical model, and is expected to make doctors as a decision-maker. This article mainly describes the research progress on artificial intelligence in the identification of benign and malignant lung nodules, pathological typing, determination of markers, and detection of plasma circulating tumor DNA.

Objective    Through the perioperative outcome analysis of da Vinci robot-assisted sleeve lobectomy, to clarify its efficacy and safety. Methods    A retrospective analysis was performed on 10 patients with centrally located lung cancer undergoing robot-assisted sleeve lobectomy from March to December 2019 in our center, including 9 males and 1 female, aged 45-67 (55.0±8.9) years. Preoperative imaging and bronchoscopy showed central non-small cell lung cancer, involving the right upper lung in 3 patients, right lower lung in 2 patients, the left upper lung in 4 patients, and left lower lung in 1 patient. The operation time, Docking time, intraoperative blood loss volume, bronchial anastomosis time, number of dissected lymph nodes, drainage volume and postoperative hospital stay were analyzed. Results    The da Vinci robot-assisted bronchial sleeve lobectomy was completed smoothly on 10 patients. The operation time was 135-183 (157.8±14.3) min, Docking time 6-15 (10.0±2.9) min, intraoperative blood loss volume 55-250 (124.5±61.8) mL, bronchial anastomosis time 17-40 (27.7±7.3) min, the number of dissected lymph nodes 16-23 (19.7±2.8), the drainage volume 200-600 (348.0±148.4) mL and postoperative hospital stay 7-11 (8.7±1.6) d. All patients had no bronchopleural fistula, pulmonary infection or atelectasis, and there was no perioperative death. Postoperative pathological findings were all squamous cell carcinoma. Conclusion    Da Vinci robot-assisted sleeve lobectomy is safe and effective.