Purpose: This research observed the efficacy and safety of soft tissue expansion combined with recombinant human epidermal growth factor (rhEGF) in repairing second-degree scald scars. Methods: This study conducted a prospective, single-blind, randomized controlled trial. Eighty-four patients with deep second-degree scald scars were evenly divided into the control and observation groups. The control group was treated with soft tissue expansion, and the observation group was additionally treated with rhEGF. The skin expansion and wound healing times were compared. The changes in wound exudate and inflammation around the wound were observed after first-stage surgery. The hydroxyproline (OHP) and collagen I/III ratios were compared during the second stage of surgery.The complications and repair effects during treatment were evaluated. Results: The observation group exhibited lower expansion time, immediate retraction rate, and wound healing time, higher skin expansion rate, higher wound exudate score and inflammation score, higher OHP, lower collagen I/III, lower complication rate, and higher total effective rate than the control group (all P < 0.05). Conclusion Skin soft tissue expansion combined with rhEGF is more effective in repairing second-degree scald scars, which can effectively increase skin expansion area and reduce wound infection and complications.

Purpose: This research observed the efficacy and safety of soft tissue expansion combined with recombinant human epidermal growth factor (rhEGF) in repairing second-degree scald scars. Methods: This study conducted a prospective, single-blind, randomized controlled trial. Eighty-four patients with deep second-degree scald scars were evenly divided into the control and observation groups. The control group was treated with soft tissue expansion, and the observation group was additionally treated with rhEGF. The skin expansion and wound healing times were compared. The changes in wound exudate and inflammation around the wound were observed after first-stage surgery. The hydroxyproline (OHP) and collagen I/III ratios were compared during the second stage of surgery.The complications and repair effects during treatment were evaluated. Results: The observation group exhibited lower expansion time, immediate retraction rate, and wound healing time, higher skin expansion rate, higher wound exudate score and inflammation score, higher OHP, lower collagen I/III, lower complication rate, and higher total effective rate than the control group (all P < 0.05). Conclusion Skin soft tissue expansion combined with rhEGF is more effective in repairing second-degree scald scars, which can effectively increase skin expansion area and reduce wound infection and complications.

Purpose: This research observed the efficacy and safety of soft tissue expansion combined with recombinant human epidermal growth factor (rhEGF) in repairing second-degree scald scars. Methods: This study conducted a prospective, single-blind, randomized controlled trial. Eighty-four patients with deep second-degree scald scars were evenly divided into the control and observation groups. The control group was treated with soft tissue expansion, and the observation group was additionally treated with rhEGF. The skin expansion and wound healing times were compared. The changes in wound exudate and inflammation around the wound were observed after first-stage surgery. The hydroxyproline (OHP) and collagen I/III ratios were compared during the second stage of surgery.The complications and repair effects during treatment were evaluated. Results: The observation group exhibited lower expansion time, immediate retraction rate, and wound healing time, higher skin expansion rate, higher wound exudate score and inflammation score, higher OHP, lower collagen I/III, lower complication rate, and higher total effective rate than the control group (all P < 0.05). Conclusion Skin soft tissue expansion combined with rhEGF is more effective in repairing second-degree scald scars, which can effectively increase skin expansion area and reduce wound infection and complications.

N6-methyladenosine(m6A)denotes the addition of a methyl group to the sixth nitrogen atom of ade-nosine,a common occurrence in eukaryotic RNA.The m6A modifications govern RNA splicing,translocation,stability,and translation into proteins.The RNA methyltransferases,like methyltransferase-like protein 3(METTL3),METTL14,and Wilms'tumor 1-associated protein(WTAP),are responsible for these modifications,while the removal process in-volves demethylases,specifically fat mass and obesity-associated protein(FTO)and ALKB homolog 5(ALKBH5).Recog-nition of these modifications is facilitated by m6A-binding proteins,such as YTH family proteins and insulin-like growth factor 2 mRNA-binding proteins(IGF2BPs).The m6A modification regulators are involved in the onset and progression of non-small-cell lung cancer through multiple mechanisms.This review concentrates on the biological functions and molecu-lar mechanisms of m6A modification-related regulatory factors in the malignant progression of non-small-cell lung cancer.

Objective To explore the mechanism of butylphthalide(NBP)in regulating microglia acti-vation and inflammatory cytokine expression in the hippocampus of the mouse model of delayed encephalopathy af-ter carbon monoxide poisoning(DEACMP).Methods Wild-type C57 adult mice with normal cognitive function were selected,and DEACMP was modeled by static inhalation of carbon monoxide.The mice were randomized in-to three groups:DEACMP,control,and NBP.The NBP group was administrated with NBP suspension at 6 mg/kg by gavage for 21 days,and the DEACMP and control groups were administrated with the same amount of vegeta-ble oil by gavage.The hippocampal injury was observed by HE staining.The protein level of ionized calcium-bind-ing adapter molecule 1(IBA1)was determined by Western blotting,and the levels of downstream inflammatory cytokines were measured by ELISA.Results Compared with the control group,the DEACMP and NBP groups showed prolonged escape latency(P=0.001,P=0.029),reduced nerve cells(P=0.001,P=0.035),up-regulated expression of IBA1(P=0.001,P=0.042),increased mean fluorescence intensity of IBA1(P=0.001,P=0.021),and elevated levels of tumor necrosis factor-α(TNF-α)(P=0.002,P=0.024),inter-leukin(IL)-6(P=0.001,P=0.015),and IL-1β(P=0.001,P=0.023).Compared with the DEACMP group,the NBP group showed shortened escape latency(P=0.025),increased nerve cells(P=0.039),down-regulated expression of IBA1(P=0.035),decreased average fluorescence intensity of IBA1(P=0.031),and lowered levels of TNF-α(P=0.028),IL-6(P=0.037),and IL-1 β(P=0.034).Conclusion NBP can inhibit the activation of microglia and reduce the expression of inflammatory factors,thereby alleviating cog-nitive dysfunction and brain tissue damage caused by DEACMP.

Danggui Liuhuangtang is the 47^th of the 100 famous classical formulas published by the National Administration of Traditional Chinese Medicine， and is known as the holy medicine for night sweat. By bibliometrics， the authors collected the ancient books on Danggui Liuhuangtang and screened out 269 valid data， involving 156 ancient books of traditional Chinese medicine. The analysis on the historical origin， disease syndromes， pathogenesis， composition， dosage， preparation， usage， and processing of Danggui Liuhuangtang found that this famous classical formula originated from Secret Book of the Orchid Chamber （《兰室秘藏》） written by LI Dongyuan， and is composed of Angelicae Sinensis Radix， Rehmanniae Radix， Rehmanniae Radix Praeparata， Phellodendri Chinensis Cortex， Scutellariae Radix， Coptidis Rhizoma and Astragali Radix. It has the functions of nourishing Yin， reducing fire， consolidating exterior and stopping sweating， and mainly treats night sweat due to Yin deficiency and fire exuberance. In the later generations， disease syndromes are mostly treated based on LI Dongyuan's theory， and have expanded to more than 30 kinds （339 in total）， among which night sweat （208） was the most， accounting for 61.36% of the total disease syndromes， followed by spontaneous sweating （38）， accounting for 11.21%. Additionally， it was found that Danggui Liuhuangtang was widely used in modern clinical practice for various disease syndromes. Among them， endocrine disease （77， 28.21%） was predominant， followed by gynecological disease （48， 17.58%）， and pediatric disease （24， 8.79%）. Although Danggui Liuhuangtang treats many disease syndromes， their pathogenesis was always yin deficiency and fire exuberance. Through the systematic excavation of the ancient books on Danggui Liuhuangtang and the analysis of its modern clinical application， this paper probed into the historical evolution and confirmed the key information of the formula， providing detailed literature basis for the research and development application of famous classical formulas.

Objective:To compare the effects of ultrasound-guided dynamic needle tip positioning (DNTP) and long axis in-plane (LAX-IP) techniques for axillary vein puncture and catheterization.Methods:One hundred Society of Anesthesiologists physical statusⅠ-Ⅲ patients of both sexes, aged 18-64 yr, with body mass index of 20-28 kg/m 2, scheduled for elective axillary vein cannulation, were divided into 2 groups ( n=49 each) using the random number table method: DNTP group and LAX-IP group.Axillary vein puncture was performed using DNTP technique and LAX-IP technique under ultrasound guidance in DNTP group and LAX-IP group, respectively.Successful puncture at first attempt, overall successful catheterization, the number of needle tip redirection, and axillary vein puncture time and catheterization time were recorded.The occurrence of complications such as axillary artery puncture, posterior wall penetration of axillary vein, hematoma formation, pneumothorax, and nerve injury was recorded. Results:Compared with group LAX-IP, the success rate of puncture at first attempt was significantly increased, the number of cases required needle redirection was decreased, and the puncture time was shortened ( P<0.05), and no significant change was found in the logarithm of the posterior wall penetration of axillary vein in group DNTP ( P>0.05). No complications such as arterial puncture, hematoma, pneumothorax, or nerve injury occurred in two groups. Conclusions:Compared with LAX-IP technique, ultrasound-guided DNTP technique can dynamically observe the position of the needle tip, the operation is simple and safe, and it is worthy of clinical promotion when used for axillary vein puncture and cannulation.

Qingweisan is one of the classical prescriptions commonly used in the treatment of oral diseases. By means of Bibliometrics， the authors collected the ancient books on Qingweisan and sifted out 411 valid data， involving 116 classics of traditional Chinese medicine. The historical origin， drug composition， indications， principle of composition， dosage，and preparation of Qingweisan were statistically analyzed， and it was found that the prescription originated from the Treatise on Spleen and Stomach（《脾胃论》） by LI Dongyuan and is composed of Rehmanniae Radix， Angelica Sinensis， Cortex Moutan， Coptidis Rhizoma and Cimicifugae Rhizoma， with the functions of clearing stomach， purging fire， cooling blood and dispersing depression. And Qingweisan was mainly used to treat toothache， headache， and preference for cold and aversion to heat caused by "excessive heat in yang brightness meridian". There were 352 indications recorded， most of which followed LI Dongyuan's theory and the expanded indications reached 70 kinds. Specifically， toothache （132） was the most， accounting for 22.49% of the total indications， followed by headache （60， 10.22%）. In addition， Qingweisan was widely used in modern clinical practice for multiple system diseases， among which oral system （197） was dominant， accounting for 72.69%， followed by skin system （28， 10.33%） and digestive system （27， 9.96%）. Although the indications were wide， the pathogenesis always belonged to "upward attack of stomach fire". Through the excavation and statistical analysis of the ancient books on Qingweisan and its modern clinical application， the authors aimed to provide a more scientific reference for the research and application of classical famous prescriptions.

Objective: To evaluate the feasibility and effectiveness of the application of internet-based HIV testing in men who have sex with men (MSM) in practical application and provide evidence for its application in the future. Methods: MSM who visited the internet-based intervention platform for at least one time from June to December 2020 were selected for the study. The information about platform visit, the number of self-test kits provided, the basic characteristics of the MSM and their satisfactory level were collected. And multivariable logistic regression analyses were conducted to identify the potential factors associated with the reporting of self-test results. Results: By the end of December 31^th, 2020, a total of 132 267 platform visits had been recorded, and 3 511 HIV self-test kits had been provided upon the MSM's requests, and 3 237 MSM (92.2%) reported self-test results. The HIV positive rate was 2.4% (69/2 855) and the confirmation rate of positive HIV test results was 86.7% (52/60). The MSM who asked for self-test kits online were mainly aged ≤30 years, had education level of college or above, and found their sexual partners through internet or dating software. Multivariable logistic regression analyses showed that repeat of online HIV self-test kits application (OR=3.50,95%CI:2.10-5.83), guarantee deposit of 50 yuan at application (OR=2.55,95%CI:1.33-4.89), monthly economic income 1-3 000 yuan (OR=1.54,95%CI:1.05-2.28) or no income (OR=1.71,95%CI:1.20-2.42) and online sexual partners finding (OR=1.49,95%CI:1.13-1.95) were associated with higher reporting rate of self-test results. The satisfactory rate the MSM to the service of platform was 99.5% (217/218). Conclusions: The study confirmed the feasibility and effectiveness of internet-based intervention for HIV tests in MSM, which could promote the self-test of HIV in MSM and facilitate the early detection of HIV infection through social media platforms and multi-channel promotion.
Male ; Humans ; Homosexuality, Male ; HIV Infections/prevention & control* ; Feasibility Studies ; Sexual and Gender Minorities ; HIV Testing ; Internet

OBJECTIVE: To explore the clinical effect of the simple nucleus pulposus removal and small incision interlaminar window in the treatment of prolapsed and displaced lumbar disc herniation. METHODS: From February 2016 to February 2018, 35 patients with single-segment prolapse and displaced lumbar disc herniation were treated by the simple nucleus pulposus removal and small incision interlaminar window under general anesthesia. Among them, there were 21 males and 14 females;aged (42±17) years;27 cases of L RESULTS: All the operations were successful and the operation time was 30 to 60 min with an average of 40 min, the intraoperative blood loss was 10 to 30 ml with an average of 20 ml. All the patients were followed up for 1 to 3 years with an average of 1.2 years. Thirty-five patients with low back pain and lower limb symptoms were significantly relieved or disappeared. According to modified Macnab standard, 29 cases obtained excellent results, 5 good, and 1 fair. CONCLUSION Applying the concept of minimally invasive operation, small incision interlaminar window and simple nucleus pulposus removal for the treatment of prolapsed and displaced lumbar disc herniation has the advantages of short operation time, definite curative effect, and less trauma. And it is a safe and effective surgical method under the premise of strict control of the indications.
Adult ; Diskectomy, Percutaneous ; Endoscopy ; Female ; Humans ; Intervertebral Disc Displacement/surgery* ; Lumbar Vertebrae/surgery* ; Male ; Middle Aged ; Nucleus Pulposus ; Prolapse ; Retrospective Studies ; Treatment Outcome