Lung transplantation is currently the only recognized effective treatment for end-stage lung disease and has improved the quality of life for patients. However, lung transplantation still faces many challenges, including rejection, infection, post-transplant acute kidney injury, post-transplant diabetes mellitus, ischemia-reperfusion injury and donor shortage, etc. Chinese lung transplantation scholars made a series of important progress in the field of clinical research in 2024, focusing on the study and solution of the above problems, and providing new ideas for lung transplantation surgery. This article systematically reviews the clinical research and technological innovation in the field of lung transplantation in 2024, summarizes the achievements of clinical research in the field of lung transplantation in China in 2024, and aims to providing new directions and strategies for future research.

Objective To analyze the clinical features and surgical treatment strategies of T4a thyroid cancer.Methods We retrospectively analyzed patients with thyroid cancer treated in the Department of Head and Neck Surgery of Sichuan Cancer Hospital from January 2004 to May 2021.A total of 303 cases were included and statistically analyzed for pathological type,invaded organs,surgical approach,survival time,and overall survival rate.The postoperative survival curves of the patients were analyzed using the Kaplan Meier method.Results Of the 303 patients enrolled,53 patients were lost to follow-up,and the 1-year,3-year and 5-year overall survival rates were 98.4％(246/250),97.0％(224/231)and 90.2％(92/102),respectively.Of the 94 patients with recurrent laryngeal nerve invasion only,13 were lost to follow-up,and the 1-year,3-year and 5-year overall survival rates were 100％(81/81),98.7％(77/78)and 97.4％(38/39),respectively.There were 151 patients with invasion of recurrent laryngeal nerve and tracheal/laryngeal/esophageal nerve,31 of them were lost to follow-up,and the 1-year,3-year and 5-year overall survival rates were 96.7％(116/120),95.3％(101/106)and 82.2％(37/45),respectively.According to the survival curve analysis,the group with recurrent laryngeal nerve invasion only had an advantage in overall survival time over the group with recurrent laryngeal nerve and tracheal/laryngeal/esophageal invasion.Conclusion Surgical resection is supposed to be preferred for T4a thyroid cancer if there is a chance of surgery.A reasonable surgical strategy,radical surgery while preserving the vital tissues and organs,and one-stage repair and reconstruction can bring patients a better quality of life and prognosis.

ObjectiveTo compare the air disinfection effects of different human-machine coexistence disinfection methods in the high-risk areas of airborne diseases in medical and healthcare institutions, and to provide a reference for the prevention and control of airborne diseases in medical and healthcare institutions. MethodsField trials were conducted in the fever clinic, the infection disease department, and dental clinics of a tertiary hospital in Shanghai, respectively. The existing air disinfection methods (plasma air disinfection machine, circulating air ultraviolet disinfection machine or negative pressure ventilation system), upper-room 222 nm ultraviolet germicidal system, and the combination of the existing air disinfection methods and upper-room 222 nm ultraviolet germicidal system were all used in each location in the experiment group. The control group did not adopt specific air disinfection methods. Air sampling was conducted by the six-level sieve hole microbial sampler or the flat slab exposure method. The daily air sampling time was from 8:00 a.m. to 16:00 p.m., with one sample per hour, and a total of 9 samples were taken. The disinfection effects were compared by calculating the total number of airborne bacteria colonies and the sterilization rate for each disinfection method. ResultsThe total numbers of airborne bacteria colonies in the fever outpatient infusion room, the ward and nurse station of infection disease department of 222 nm group were lower than that in the control group (P=0.005, P<0.001, P<0.001). The total numbers of airborne bacteria colonies in the fever outpatient infusion room and the dental examination room of 222 nm group were lower than that in the control group or plasma air disinfection machine group (P=0.022, P=0.014). The total numbers of airborne bacteria colonies in the nucleic acid sampling room of plasma air disinfection machine group combined with 222 nm group were lower than that in plasma air disinfection machine group (P=0.019). The total numbers of airborne bacteria colonies in the CT examination room of fever clinic of the 222 nm group were lower than that in the circulating air ultraviolet disinfection machine group (P=0.002). The total numbers of airborne bacteria colonies in the CT examination room of 222 nm group combined with circulating air ultraviolet disinfection machine were lower than that of circulating air ultraviolet disinfection machine group and the control group (P=0.008, P<0.001). The air sterilization rate of upper-room 222 nm ultraviolet germicidal system ranged from 48.04% to 73.74%. The air sterilization rate of plasma air/circulating air ultraviolet disinfection machine combined with the upper-room 222 nm ultraviolet germicidal system ranged from 6.86% to 73.77%. ConclusionUpper-room 222 nm ultraviolet germicidal system could effectively reduce airborne colonies in the air and improve air hygiene quality in both clinic and ward environments with high airborne transmission risks.

The biological clock(also known as the circadian rhythm)is the fundamental reliance for all organisms on Earth to adapt and survive in the Earth's rotation environment.Circadian rhythm is the most basic regulatory mechanism of life activities,and plays a key role in maintaining normal physiological and biochemical homeostasis,disease occurrence and treatment.Recent studies have shown that the biologi-cal clock plays an important role in the development of oral tissues and in the occurrence and treatment of oral diseases.Since there is cur-rently no guiding literature on the research methods of biological clock in stomatology,researchers mainly conduct research based on pub-lished references,which has led to controversy about the research methods of biological clock in stomatology,and there are many confusions about how to rationally apply the research methods of circadia rhythms.In view of this,this expert consensus summarizes the characteristics of the biological clock and analyzes the shortcomings of the current biological clock research in stomatology,and organizes relevant experts to summarize and recommend 10 principles as a reference for the rational implementation of the biological clock in stomatology research.

Objective:To preliminarily investigate the clinical outcomes of secondary loop electrosurgical excision procedure (LEEP) combined with transcervical resection of endocervical tissue (i.e., second combined surgeries) in patients with positive endocervical margins following the initial LEEP for high-grade squamous intraepithelial lesion (HSIL) or adenocarcinoma in situ (AIS) of the cervix.Methods:Patients who underwent second combined surgeries due to positive endocervical margins after the initial LEEP for cervical HSIL or AIS at Obstetrics and Gynecology Hospital, Fudan University between August 2015 and September 2023 were included. Postoperative cytological examinations, high-risk human papillomavirus (HR-HPV) testing, colposcopic biopsy results, and cervical canal length were followed up to evaluate the clinical efficacy of second combined surgeries.Results:(1) General clinical data: a total of 67 patients were enrolled, including 34 with cervical HSIL (HSIL group) and 33 with AIS (AIS group). In the HSIL group before the time of initial LEEP, the mean age was (41.3±5.3) years, with all patients positive for HR-HPV preoperatively. Preoperative cytology results revealed ≤low-grade squamous intraepithelial lesion (LSIL) in 13 cases and ≥HSIL in 21 cases. The preoperative cervical canal length was (3.71±0.17) cm. Patients in the AIS group before their the first LEEP were at an average age of (39.1±8.7) years old, with preoperative HR-HPV positive. Among them, 16 cases showed preoperative cytological results of ≤LSIL, while 17 cases showed ≥HSIL. The preoperative cervical canal length was (3.64±0.21) cm. (2) Pathological findings and postoperative follow-up of the HSIL group following second combined surgeries:in the HSIL group, the residual rate of HSIL in the endocervical canal tissue (ECT) was 24% (8/34). Out of the 34 HSIL patients, 10 cases (29%, 10/34) remained with positive endocervical margins post-second combined surgeries. Among these 10 patients, 5 cases (5/10) had no lesion detected in ECT, while the remaining 5 cases (5/10) exhibited HSIL in their ECT. Conversely, 24 patients (71%, 24/34) had negative endocervical margins after second combined surgeries. Of these 24 patients, 3 cases (12%, 3/24) were found to have HSIL in ECT, and 21 cases (88%, 21/24) had no lesion in ECT. During follow-ups conducted at 6 and 12 months post-second combined surgeries, the clearance rates of HR-HPV were 91% (31/34) and 100% (34/34), respectively. Notably, among the 29 patients (85%, 29/34) who were followed up for a period of 2 years or longer, all cases maintained a consistently negative HR-HPV status, highlighting the effectiveness of second combined surgeries in achieving long-term HR-HPV clearance (100%, 29/29). (3) Pathological findings and postoperative follow-up of the AIS group following second combined surgeries: the residual rate of AIS in the ECT following second combined surgeries among AIS patients was 15% (5/33). Out of the 33 AIS patients, 11 cases (33%, 11/33) had positive endocervical margins post-operation, among whom AIS was detected in the ECT of 2 cases (2/11), while 1 case (1/11) was diagnosed with adenocarcinoma in the cervical canal tissue (subsequently underwent radical surgery and was excluded from this study). In contrast, 22 patients (67%, 22/33) had negative endocervical margins post-operation, with AIS found in the ECT of 2 cases (9%, 2/22) and no lesions detected in the remaining 20 cases (91%, 20/22). Follow-up evaluations conducted at 6 and 12 months postoperatively revealed HR-HPV clearance rates of 91% (29/32) and 97% (31/32), respectively. All 32 (100%, 32/32) AIS patients were followed up for a duration of ≥2 years post-second combined surgeries, during which HR-HPV remained consistently negative. (4) Complications and cervical length following second combined surgeries: neither the HSIL group nor the AIS group experienced significant complications such as hemorrhage, infection or cervical canal adhesion. At the 6-month follow-up, the cervical length of both HSIL and AIS patients exceeded 3 cm. By the 12-month follow-up, the cervical length had recovered to 96.5% and 97.5% when compared to the original length, respectively, for the HSIL and AIS groups.Conclusions:For patients with HSIL or AIS who exhibit positive endocervical margins following the initial LEEP procedure, undergoing second combined surgeries presents as an optimal choice. This surgical intervention guarantees thorough excision of the lesion, and subsequent colposcopic follow-up evaluations consistently demonstrate an absence of residual disease or recurrence. Moreover, it augments the rate of sustained HR-HPV negativity, thereby contributing to more favorable clinical outcomes.

General education in biological courses such as "Principal Biology" is an essential avenue for gaining an understanding of life science and developing an interest in the field. The reform of biological education teaching mode based on interdisciplinary approaches aims to foster cross-disciplinary talents, which is crucial for the rapid development of China's bioeconomy. Teaching method that simply superimposes different subjects is difficult to discover the value of interdisciplinary education. To address this, a novel teaching system and an innovative teaching mode were proposed for "Principal Biology" course by integrating science and engineering subjects, based on the cross-disciplinary feature in Beijing Institute of Technology. The system involves the design of cross-disciplinary course content and the integration of multiple disciplines and knowledge points based on students' majors, taking into account the characteristics of students' physical and mental development. To improve students' scientific literacy and interdisciplinary thinking ability, differentiated and major-driven teaching modes were applied by incorporating the "1+N" mixed and immersive cross-thinking training. The effectiveness of tailored cross-disciplinary teaching was evaluated using "in-teaching" and "post-teaching" data feedback models, which promote the optimization of teaching process and enhance the quality of education in cross-disciplinary biological science.
Humans ; Students ; Curriculum ; Biological Science Disciplines/education* ; Universities ; Biology/education*

In the context of non-alcoholic fatty liver disease (NAFLD), characterized by dysregulated lipid metabolism in hepatocytes, the quest for safe and effective therapeutics targeting lipid metabolism has gained paramount importance. Sanhuang Xiexin Tang (SXT) and Baihu Tang (BHT) have emerged as prominent candidates for treating metabolic disorders. SXT combined with BHT plus Cangzhu (SBC) has been used clinically for Weihuochisheng obese patients. This retrospective analysis focused on assessing the anti-obesity effects of SBC in Weihuochisheng obese patients. We observed significant reductions in body weight and hepatic lipid content among obese patients following SBC treatment. To gain further insights, we investigated the effects and underlying mechanisms of SBC in HFD-fed mice. The results demonstrated that SBC treatment mitigated body weight gain and hepatic lipid accumulation in HFD-fed mice. Pharmacological network analysis suggested that SBC may affect lipid metabolism, mitochondria, inflammation, and apoptosis-a hypothesis supported by the hepatic transcriptomic analysis in HFD-fed mice treated with SBC. Notably, SBC treatment was associated with enhanced hepatic mitochondrial biogenesis and the inhibition of the c-Jun N-terminal kinase (JNK)/nuclear factor-kappa B (NF-κB) and extracellular signal-regulated kinase (ERK)/NF-κB pathways. In conclusion, SBC treatment alleviates NAFLD in both obese patients and mouse models by improving lipid metabolism, potentially through enhancing mitochondrial biogenesis. These effects, in turn, ameliorate inflammation in hepatocytes.
Humans ; Mice ; Animals ; Non-alcoholic Fatty Liver Disease/metabolism* ; NF-kappa B/metabolism* ; Organelle Biogenesis ; Retrospective Studies ; Mice, Inbred C57BL ; Obesity/metabolism* ; Liver ; Inflammation/metabolism* ; Body Weight ; Lipid Metabolism ; Lipids ; Diet, High-Fat/adverse effects*

During the development of therapeutic microRNAs (miRNAs or miRs), it is essential to define their pharmacological actions. Rather, miRNA research and therapy mainly use miRNA mimics synthesized in vitro. After experimental screening of unique recombinant miRNAs produced in vivo, three lead antiproliferative miRNAs against human NSCLC cells, miR-22-3p, miR-9-5p, and miR-218-5p, were revealed to target folate metabolism by bioinformatic analyses. Recombinant miR-22-3p, miR-9-5p, and miR-218-5p were shown to regulate key folate metabolic enzymes to inhibit folate metabolism and subsequently alter amino acid metabolome in NSCLC A549 and H1975 cells. Isotope tracing studies further confirmed the disruption of one-carbon transfer from serine to folate metabolites by all three miRNAs, inhibition of glucose uptake by miR-22-3p, and reduction of serine biosynthesis from glucose by miR-9-5p and -218-5p in NSCLC cells. With greater activities to interrupt NSCLC cell respiration, glycolysis, and colony formation than miR-9-5p and -218-5p, recombinant miR-22-3p was effective to reduce tumor growth in two NSCLC patient-derived xenograft mouse models without causing any toxicity. These results establish a common antifolate mechanism and differential actions on glucose uptake and metabolism for three lead anticancer miRNAs as well as antitumor efficacy for miR-22-3p nanomedicine, which shall provide insight into developing antimetabolite RNA therapies.

Objective:To construct a Question Prompt List of information needs for patients with interstitial lung disease, providing a tool for patients with interstitial lung disease to actively obtain disease-related information.Methods:A literature study was conducted based on the three core needs (ERG) theory framework of existence,relatedness and growth. A purposive sampling method was used to select 15 patients with interstitial lung disease from Drum Tower Hospital, Medical School of Nanjing University from December 2021 to January 2022 for descriptive research. Based on literature research and qualitative research, the initial items of the Question Prompt List were determined through expert inquiry, and the items were extracted, discussed, and adjusted, and finalized the list of information needs and prompts for patients with interstitial lung disease.Results:The 19 experts participated in the consultation, with a positive coefficient of 100.0% and 94.7% for two rounds of consultation, an authoritative coefficient of 0.91 and 0.92, and the Kendall coordination coefficient of 0.31 and 0.23, respectively. Finally, a list of interstitial lung disease patients′ question prompts containing 4 primary indicators and 34 secondary indicators was formed.Conclusions:Based on the ERG theory, the research method for the Question Prompt List of information needs for patients with interstitial lung disease is scientific and reliable, and can be used in clinical practice to help patients inquire and obtain the necessary information.

Bile acids(BAs)are synthesized by the liver from cholesterol through several complementary pathways and aberrant cholesterol metabolism plays pivotal roles in the pathogeneses of cholesterol gallbladder polyps(CGP)and cholesterol gallstones(CGS).To date,there is neither systematic study on BAs profile of CGP or CGS,nor the relationship between them.To explore the metabolomics profile of plasma BAs in healthy volunteers,CGP and CGS patients,an ultra-performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS)method was developed and validated for simultaneous determination of 42 free and conjugated BAs in human plasma.The developed method was sensitive and reproducible to be applied for the quantification of BAs in the investigation of plasma samples.The results show that,compared to healthy volunteers,CGP and CGS were both characterized by the significant decrease in plasma BAs pool size,furthermore CGP and CGS shared aberrant BAs metabolic characteristics.Cheno-deoxycholic acid,glycochenodeoxycholic acid,λ-muricholic acid,deoxycholic acid,and 7-ketolithocholic acid were shared potential markers of these two cholesterol gallbladder diseases.Subsequent analysis showed that clinical characteristics including cysteine,ornithine and body mass index might be closely related to metabolisms of certain BA modules.This work provides metabolomic information for the study of gallbladder diseases and analytical methodologies for clinical target analysis and efficacy evaluation related to BAs in medical institutions.