Peri-implant keratinized mucosa (PIKM) augmentation refers to surgical procedures aimed at increasing the width of PIKM. Consensus reports emphasize the necessity of maintaining a minimum width of PIKM to ensure long-term peri-implant health. Currently, several surgical techniques have been validated for their effectiveness in increasing PIKM. However, the selection and application of PIKM augmentation methods may present challenges for dental practitioners due to heterogeneity in surgical techniques, variations in clinical scenarios, and anatomical differences. Therefore, clear guidelines and considerations for PIKM augmentation are needed. This expert consensus focuses on the commonly employed surgical techniques for PIKM augmentation and the factors influencing their selection at second-stage surgery. It aims to establish a standardized framework for assessing, planning, and executing PIKM augmentation procedures, with the goal of offering evidence-based guidance to enhance the predictability and success of PIKM augmentation.
Humans ; Consensus ; Dental Implants ; Mouth Mucosa/surgery* ; Keratins

Platelets are well-known for their functions in blood clotting and vascular repair. However, in recent years, the regulatory role of platelets in the occurrence and development of malignant tumors has received significant attention. While extensive research has been conducted on the regulation of tumors by circulating platelets in peripheral blood, there is a lack of coherence and continuity among these studies. The tumor microenvironment encompasses the intricate network of cellular and acellular elements that surround and interact with tumor cells, creating a supportive ecosystem for their survival and growth. It plays a crucial role in the initiation and progression of tumors. Similar to dark matter in the universe, platelets, as tiny and enigmatic entities, play an essential role in tumor development and treatment within the tumor microenvironment. Although our current understanding of platelet regulation in the tumor microenvironment is limited, they hold immense untapped potential. In-depth studies on the tumor microenvironment have revealed platelets as a meaningful component, influencing various aspects of tumor development, metastasis, and immune evasion. Platelets, through the release of various bioactive substances or direct interaction with tumor cells, impact tumor progression while being influenced by the tumor in return. Therefore, understanding the role and mechanisms of platelets in the tumor microenvironment is of great importance for tumor prevention and treatment. This review provides a summary of the research progress on the interplay between platelets and tumors in the tumor microenvironment, and presents a promising outlook on the potential of platelets in tumor therapy.

OBJECTIVE To investigate the impact of perilla alcohol on pulmonary vascular remod-eling in hypoxia-induced pulmonary hypertension(HPH)rats and to assess its regulatory effects on the angiotensin-converting enzyme 2(ACE2)-angiotensin(1-7)[Ang(1-7)]-mas proto-oncogene receptor(Mas)and ACE-angiotensinⅡ(AngⅡ)-angiotensin type 1 receptor(AT1R)axes.METHODS An HPH rat model was established by keeping them in a hypobaric chamber that simulated an altitude of 5 000 m for 28 d.Male SD rats were randomly divided into the control group,hypoxia group,hypoxia+sildenafil group(ig administration of 30 mg·kg-1),and hypoxia+perillyl alcohol groups(ig administration of 25,50 and 100 mg·kg-1 respectively).After 28 d,the levels of glutamic-oxaloacetic transaminase(GOT),glutamic-pyruvic transaminase(GPT),and blood urea nitrogen(BUN)in rat serum were measured to evaluate the toxic effects of perillyl alcohol on rat organs.Mean pulmonary artery pressure(mPAP)was measured via right ventricular catheterization.HE staining was used to observe the patho morphological changes of pulmonary vessels in HPH rats and measure the percentages of the vascularwall area[WA(%)],wall thickness[WT(%)],lumen area[LA(%)].The right ventricular hypertrophy level and α-smooth muscle actin(α-SMA)expression level were detected by immunohistochemistry and immunofluorescence.Western blotting was used to detect the protein expression levels of α-SMA,ACE,AT1R,AngⅡ,ACE2 and Mas in lung tissues of rats.Enzyme-linked immunosorbent assay(ELISA)was employed to mea-sure the content of Ang(1-7)in lung tissues.RESULTS Compared with the control group,the serum levels of GOT,GPT and BUN in the hypoxia group rats were significantly increased,but were signifi-cantly decreased by perillyl alcohol and sildenafil intervention.Compared with the control group,mPAP,WA(%),WT(%),right ventricular inner diameter(RVID),right ventricular free wall thickness(RVFWT)and fibrosis levels were significantly increased in the hypoxia group,while LA(%)was signifi-cantly decreased.Besides,the protein expression levels of α-SMA,ACE,AT1R and AngⅡ in lung tissues were significantly elevated while those of ACE2 and Mas,as well as Ang(1-7)content were signifi-cantly decreased in hypoxia group compared to the control group.Following intervention with perillyl alcohol and sildenafil,the protein expression levels of ACE and AngⅡin lung tissues of HPH rats were significantly decreased compared to the model group while those of ACE2 and Mas receptor,along with the content of Ang(1-7),were significantly increased.Perillyl alcohol significantly reduced the protein expression level of AT1R while sildenafil had no significant effect.CONCLUSION Perillyl alcohol can lower mPAP levels by improving pulmonary vascular remodeling and reducing pulmonary vascular fibrosis in HPH rats.The mechanism may be related to the regulatory effects on the ACE-AngⅡ-AT1R and ACE2-Ang(1-7)-Mas axes.

Objective To establish a quality evaluation method for Abri Mollis Herba based on its morphological characteristics, microscopic features, and the determination of principal component contents. Methods The morphological characteristics of Abri Mollis Herba were identified by morphological authentication methods. Microscopic techniques were employed to observe the microscopic features of both the powdered form and cross-sectional tissue of Abri Mollis Herba. Additionally, a high-performance liquid chromatography （HPLC） method was developed to establish the quantify the main components, abrine and soyasaponin Bb, in Abri Mollis Herba. Results The morphological characteristics of Abri Mollis Herba were defined by numerous long pubescence on both the upper and lower surfaces of the leaflets, with indistinct veins and vein islands. The microscopic features mainly included non-glandular hairs, prismatic crystals, and crystal-sheathed fibers in the powdered form. In the root cross-section, xylem bundles, rays, vessels, and stone cells were visible. The stem cross-section displayed rays, vessels, and a hollow pith, while the leaf cross-section revealed collateral vascular bundles, vessels, and prismatic crystals. Conclusion The quality of Abri Mollis Herba could be effectively evaluated by the combination of morphological identification, microscopic authentication, and the quantification of main components abrine and soyasaponin Bb .

As the core technology of processing， the stir-frying method of traditional Chinese medicine（TCM） realizes the regulation of efficacy of medicinal substances through the coordination of fire gradient and excipients. This study aims to systematically analyze the influence of different stir-frying degrees（stir-frying until yellow， stir-frying to brown， stir-frying to charcoal） and excipient types（solid excipients such as rice， wheat bran， soil， liquid excipients such as rice wine， vinegar， honey） on the physicochemical properties， efficacy and toxicity of TCM， summarizing their common regulatory mechanisms and characteristics. Then， the three-dimensional regulatory common mechanisms and five-dimensional regulatory specificity mechanisms of different stir-frying processes were obtained. The three-dimensional regulatory common mechanisms are as follows：①Thermal effects break down inherent barriers of medicinal materials and improve the dissolution of components. ②Inducing Maillard reaction， carbonization and other reactions of medicinal materials to promote the transformation of components. ③Combining the catalytic and harmonizing effects of excipients to achieve targeted enrichment of efficacious substances and precise control of toxic components. The five-dimensional regulatory specificity mechanisms manifest as：①The efficacy gradient pattern where stir-frying until yellow strengthens the spleen， stir-frying to brown aids digestion， and stir-frying to charcoal stops bleeding. ②According to the polarity difference and intrinsic properties， the liquid excipients form a directional synergistic mechanism of wine processing enhances ascending nature， ginger processing to warm and disperse， salt processing directs effects to the kidneys， vinegar processing targets the liver， honey processing imparts sweetness and moderation. ③Through porous structure and interfacial properties， solid excipients give the synergistic effect of rice processing for diarrhea relief， bran processing for stomach tonification， soil processing for warming the middle warmer， and clam powder/talcum powder/sand processing for texture optimization. ④Thermal effects induce decomposition/oxidation/polymerization and other reactions to reshape the material basis， directing changes in the efficacy. ⑤The targeted distribution of efficacy is regulated by component enrichment and meridian-guiding effect， and the meridian tropism is changed. The system， driven by thermal effect， excipient synergy and physicochemical reconstruction， integrates five-dimensional regulation of fire， solvent， interface， composition and distribution. It systematically explains the inherent law of efficacy-substance-process of traditional stir-frying， and provides theoretical basis and practical guidance for standardizing TCM processing and enhancing the efficacy.

Aptamers are a class of short DNA/RNA single strand oligonucleotides that can bind to target molecules with high affinity specificity. They have the advantages of high affinity specificity, low molecular weight and low immunogenicity, and have been widely used in biomedical research, clinical diagnosis and therapy, and biosensor development. Systematic evolution of ligand by exponential enrichment (SELEX) is an in vitro screening technique, which enriches the aptamers with high affinity and specific binding to the target through multiple cycles of screening, and has a wide range of applications in tumor therapy.

OBJECTIVE To investigate the impact of perilla alcohol on pulmonary vascular remod-eling in hypoxia-induced pulmonary hypertension(HPH)rats and to assess its regulatory effects on the angiotensin-converting enzyme 2(ACE2)-angiotensin(1-7)[Ang(1-7)]-mas proto-oncogene receptor(Mas)and ACE-angiotensinⅡ(AngⅡ)-angiotensin type 1 receptor(AT1R)axes.METHODS An HPH rat model was established by keeping them in a hypobaric chamber that simulated an altitude of 5 000 m for 28 d.Male SD rats were randomly divided into the control group,hypoxia group,hypoxia+sildenafil group(ig administration of 30 mg·kg-1),and hypoxia+perillyl alcohol groups(ig administration of 25,50 and 100 mg·kg-1 respectively).After 28 d,the levels of glutamic-oxaloacetic transaminase(GOT),glutamic-pyruvic transaminase(GPT),and blood urea nitrogen(BUN)in rat serum were measured to evaluate the toxic effects of perillyl alcohol on rat organs.Mean pulmonary artery pressure(mPAP)was measured via right ventricular catheterization.HE staining was used to observe the patho morphological changes of pulmonary vessels in HPH rats and measure the percentages of the vascularwall area[WA(%)],wall thickness[WT(%)],lumen area[LA(%)].The right ventricular hypertrophy level and α-smooth muscle actin(α-SMA)expression level were detected by immunohistochemistry and immunofluorescence.Western blotting was used to detect the protein expression levels of α-SMA,ACE,AT1R,AngⅡ,ACE2 and Mas in lung tissues of rats.Enzyme-linked immunosorbent assay(ELISA)was employed to mea-sure the content of Ang(1-7)in lung tissues.RESULTS Compared with the control group,the serum levels of GOT,GPT and BUN in the hypoxia group rats were significantly increased,but were signifi-cantly decreased by perillyl alcohol and sildenafil intervention.Compared with the control group,mPAP,WA(%),WT(%),right ventricular inner diameter(RVID),right ventricular free wall thickness(RVFWT)and fibrosis levels were significantly increased in the hypoxia group,while LA(%)was signifi-cantly decreased.Besides,the protein expression levels of α-SMA,ACE,AT1R and AngⅡ in lung tissues were significantly elevated while those of ACE2 and Mas,as well as Ang(1-7)content were signifi-cantly decreased in hypoxia group compared to the control group.Following intervention with perillyl alcohol and sildenafil,the protein expression levels of ACE and AngⅡin lung tissues of HPH rats were significantly decreased compared to the model group while those of ACE2 and Mas receptor,along with the content of Ang(1-7),were significantly increased.Perillyl alcohol significantly reduced the protein expression level of AT1R while sildenafil had no significant effect.CONCLUSION Perillyl alcohol can lower mPAP levels by improving pulmonary vascular remodeling and reducing pulmonary vascular fibrosis in HPH rats.The mechanism may be related to the regulatory effects on the ACE-AngⅡ-AT1R and ACE2-Ang(1-7)-Mas axes.

Objective To observe the efficacy and safety of Buyi Pishen Prescription combined with alisartan ester tablets in patients with primary chronic kidney disease stage 3(CKD3)with spleen-kidney qi deficiency syndrome.Methods Totally 80 patients were divided into treatment group and control group using a random number table method,with 40 cases in each group.Both groups received basic treatment and alisartan ester tablets(1 tablet/day,once daily,orally).The treatment group additionally received the Buyi Pishen Prescription(1 dosage/day,twice daily,orally).Both groups were treated for 24 weeks.TCM syndrome efficacy and clinical efficacy were evaluated.At 8,16 and 24 weeks,24-hour urinary protein(24 hUpro),serum creatinine(SCr),blood urea nitrogen(BUN),estimated glomerular filtration rate(eGFR)and TCM syndrome scores were measured.Serum oxidative stress markers(SOD,GSH-Px,MDA)were assessed before and after treatment.Blood potassium and liver function were monitored throughout.Results The total effective rate for TCM syndrome efficacy was 82.50%(33/40)in the treatment group and 60.00%(24/40)in the control group(P<0.05),and the treatment group was better than the control group.The total clinical efficacy rate was 77.50%(31/40)in the treatment group and 50.00%(20/40)in the control group,and the treatment group was better than the control group(P<0.05).Compared with before treatment,the treatment group showed a significant decrease in 24 hUpro and SCr at weeks 8,16 and 24,a significant decrease in BUN at weeks 16 and 24,and a significant increase in eGFR at weeks 8,16 and 24(P<0.01);the control group showed a decrease in 24 hUpro at weeks 8,16 and 24 of treatment(P<0.05),a decrease in SCr at weeks 16 and 24 of treatment(P<0.05),and an increase in eGFR at weeks 16 and 24 of treatment(P<0.05).In addition,the treatment group had lower 24 hUpro and SCr at weeks 16 and 24 of treatment than the control group(P<0.05,P<0.01),and higher eGFR than the control group(P<0.05,P<0.01).Compared with before treatment,the total scores of both the treatment group and control group significantly decreased at 16 and 24 weeks of treatment(P<0.01).The total scores of the treatment group were significantly lower than those of the control group at 8,16 and 24 weeks of treatment(P<0.01).Compared with before treatment,both groups showed a significant increase in serum SOD levels(P<0.05,P<0.01)and a significant decrease in MDA levels after treatment(P<0.05,P<0.01).The improvement in the treatment group was more significant than that in the control group(P<0.05).Both groups showed no abnormalities in blood potassium and liver function.Conclusion Buyi Pishen Prescription combined with alisartan ester tablets can reduce the levels of 24 hUpro,BUN and SCr,improve eGFR,alleviate TCM symptoms,and delay CKD progression in CKD3 patients with spleen-kidney qi deficiency syndrome,which can effectively reduce the serum MDA level and increase the antioxidant enzyme SOD level in patients,and its mechanism may be related to improving oxidative stress levels.

Objective To observe the efficacy and safety of Buyi Pishen Prescription combined with alisartan ester tablets in patients with primary chronic kidney disease stage 3(CKD3)with spleen-kidney qi deficiency syndrome.Methods Totally 80 patients were divided into treatment group and control group using a random number table method,with 40 cases in each group.Both groups received basic treatment and alisartan ester tablets(1 tablet/day,once daily,orally).The treatment group additionally received the Buyi Pishen Prescription(1 dosage/day,twice daily,orally).Both groups were treated for 24 weeks.TCM syndrome efficacy and clinical efficacy were evaluated.At 8,16 and 24 weeks,24-hour urinary protein(24 hUpro),serum creatinine(SCr),blood urea nitrogen(BUN),estimated glomerular filtration rate(eGFR)and TCM syndrome scores were measured.Serum oxidative stress markers(SOD,GSH-Px,MDA)were assessed before and after treatment.Blood potassium and liver function were monitored throughout.Results The total effective rate for TCM syndrome efficacy was 82.50%(33/40)in the treatment group and 60.00%(24/40)in the control group(P<0.05),and the treatment group was better than the control group.The total clinical efficacy rate was 77.50%(31/40)in the treatment group and 50.00%(20/40)in the control group,and the treatment group was better than the control group(P<0.05).Compared with before treatment,the treatment group showed a significant decrease in 24 hUpro and SCr at weeks 8,16 and 24,a significant decrease in BUN at weeks 16 and 24,and a significant increase in eGFR at weeks 8,16 and 24(P<0.01);the control group showed a decrease in 24 hUpro at weeks 8,16 and 24 of treatment(P<0.05),a decrease in SCr at weeks 16 and 24 of treatment(P<0.05),and an increase in eGFR at weeks 16 and 24 of treatment(P<0.05).In addition,the treatment group had lower 24 hUpro and SCr at weeks 16 and 24 of treatment than the control group(P<0.05,P<0.01),and higher eGFR than the control group(P<0.05,P<0.01).Compared with before treatment,the total scores of both the treatment group and control group significantly decreased at 16 and 24 weeks of treatment(P<0.01).The total scores of the treatment group were significantly lower than those of the control group at 8,16 and 24 weeks of treatment(P<0.01).Compared with before treatment,both groups showed a significant increase in serum SOD levels(P<0.05,P<0.01)and a significant decrease in MDA levels after treatment(P<0.05,P<0.01).The improvement in the treatment group was more significant than that in the control group(P<0.05).Both groups showed no abnormalities in blood potassium and liver function.Conclusion Buyi Pishen Prescription combined with alisartan ester tablets can reduce the levels of 24 hUpro,BUN and SCr,improve eGFR,alleviate TCM symptoms,and delay CKD progression in CKD3 patients with spleen-kidney qi deficiency syndrome,which can effectively reduce the serum MDA level and increase the antioxidant enzyme SOD level in patients,and its mechanism may be related to improving oxidative stress levels.

Objective:To analyze the efficacy of unilateral arytenoid chondroplasty combined with minimally invasive mucosal flap plasty in the management bilateral vocal cord paralysis.Methods:A total of 66 patients with bilateral vocal cord paralysis hospitalized in the First Hospital of Sun Yat-sen University from January 2018 to December 2023 were retrospectively analyzed, among whom there were 8 males and 58 females, with ages ranging from 35 to 86 years old(mean age (57.8±11.6) years). All patients underwent suspension laryngoscopic CO 2 laser unilateral arytenoid chondroplasty and mucosal flap under general anesthesia. Postoperative follow-up period extended from 6 months to 6 years, with a median duration of 28 months. The study compared the degree of dyspnea and voice quality (subjective and objective evaluation) of the patients pre- and post-operatively, and analyzed the clinical differences between patients with and without preoperative or intraoperative tracheotomy, the extubation rate of tracheotomized patients, the recurrence rate, and the complication rate. Continuous variables conforming to normal distribution were tested by t-test and categorical variables by χ2 test,the Wilcoxon rank-sum test was used to analyze the improvement in dyspnea before and after surgery. Results:Compared with the preoperative period, 59 patients showed improvement in postoperative dyspnea ( U=161.5, P<0.01); there was no significant difference in voice disorder index 10, subjective auditory-perceptual assessment, and maximal vocalization time ( P>0.05), all of which remained within the relative normal range. Tracheotomy was performed in 32 out of 66 patients, with predominantly degree Ⅲ- dyspnea (46.9%, 15/32), including 26 patients with preoperative tracheotomy and 6 patients with intraoperative tracheotomy. Among the 34 patients who did not undergo tracheotomy, the majority presented with degree Ⅱ-dyspnea (82.4%, 28/34). All patients achieved successful extubation following surgery, with a mean median time to extubation of 1 month. Conclusions:The combination of unilateral arytenoid chondroplasty and minimally invasive mucosal flap plasty represents a refined and effective therapeutic approach for bilateral vocal cord paralysis. This minimally invasive technique has the potential to reduce the rate of tracheotomy.