Search

BACKGROUND: Tongue diagnosis is a crucial traditional Chinese medicine (TCM) inspection method for TCM syndrome differentiation and treatment. OBJECTIVE: The primary research focus was on tongue image characteristic parameters of patients with non-small cell lung cancer (NSCLC). Analysis of the tongue image parameters of various pathological stages of NSCLC provides technical support for establishing an integrated Chinese and Western auxiliary diagnosis and efficacy evaluation medicine system for lung cancer that integrates tongue image features. METHODS: Tongue image characteristics of 309 patients with NSCLC and 206 controls were collected and analyzed clinically. The T -test or rank sum test and logistic regression analysis were applied to analyze the characteristics of tongue image indicators of different pathological stages of NSCLC. RESULTS: There were differences in tongue image characteristics in the NSCLC group compared to the control group. The tongue quality and brightness of the tongue coating in the NSCLC group increased, the red component was reduced, the tongue coating thickened, and the yellow component increased compared to the healthy control group. A comparison of tongue image indexes of NSCLC in different pathological stages showed that stage IV had lower TB-b and higher TB-a than stage I. In addition, stage IV had lower TB-b than stage II + III, showing an increase in the blue and red components of the tongue in stage IV and the appearance of cyanotic tongue features. CONCLUSION: The tongue image characteristics of NSCLC patients differed from those of the control group. Tongue imaging indicators can reflect the characteristics of tongue images of patients with NSCLC. The tongue image characteristics of patients with stage IV lung cancer are bluish and purple compared with those with stage I, II, and III. It is suggested that the tongue's image characteristics can be used as a reference for the pathological classification of NSCLC and judgment of the disease process. [ABSTRACT FROM AUTHOR]

Precisely controlling the product selectivity of a reaction is an important objective in organic synthesis. α-Ketoamides are vital intermediates in chemical transformations and privileged motifs in numerous drugs, natural products, and biologically active molecules. The selective synthesis of α-ketoamides from feedstock chemicals in a safe and operationally simple manner under mild conditions is a long-standing catalysis challenge. Herein, an unprecedented TBD-switched Pd-catalyzed double isocyanide insertion reaction for assembling ketoamides in aqueous DMSO from (hetero)aryl halides and pseudohalides under mild conditions is reported. The effectiveness and utility of this protocol are demonstrated by its diverse substrate scope (93 examples), the ability to late-stage modify pharmaceuticals, scalability to large-scale synthesis, and the synthesis of pharmaceutically active molecules. Mechanistic studies indicate that TBD is a key ligand that modulates the Pd-catalyzed double isocyanide insertion process, thereby selectively providing the desired α-ketoamides in a unique manner. In addition, the imidoylpalladium(II) complex and α-ketoimine amide are successfully isolated and determined by X-ray analysis, confirming that they are probable intermediates in the catalytic pathway., (© 2024 The Author(s). Advanced Science published by Wiley‐VCH GmbH.)

Objective: To observe the facial spectrum and color of different points, the positions of heart, liver, spleen, lung and kidney of traditional Chinese medicine reflecting on the face, in healthy participants and those with a sub-health status, so as to provide an objective basis for health evaluation., Methods: The health condition of 470 subjects without acute and chronic conditions was assessed using the Health Evaluating Questionnaire H20 V2009. The subjects were diagnosed with health (more than 80 score) or sub-health (score between 60 and 80) status according to the questionnaire score. The subjects with a subhealth status were also analyzed using the five-viscera syndrome differentiation of traditional Chinese medicine using the form for collecting information according to the four examinations. Then for gathering the facial color information, CIE L*a*b and C values and reflections of wavelengths ranged from 400 to 700 nm were measured using a CM-2600D spectrophotometer on 8 points of the face, including the frontal part, glabella, nose, mandible, two cheeks and eyelids., Results: L value of the sub-health group was higher than that of the health group (P<0.05), and a, b and C values were lower than those of the health group (P<0.05), suggesting that the facial complexion of the sub-health group was pale/whiter than the health group. The reflectance rates of wavelengths (from 400 to 550 nm) of the sub-health group were higher than those of the health group (P<0.05), which suggested that the facial complexion of the sub-health group was partially green. The a, b and C values of the forehead, glabella and nose of subjects in the sub-health group were apparently different from the health subjects. L values of five-viscera types were significantly different from people of a health status (P<0.05). There were some differences in color values among the five-viscera groups: lung group's color values were significantly different from the others in terms of a, b and C values. The spectral reflectance of different viscera groups of the sub-health group also showed certain differences: reflectance of wavelengths at 400 to 490 nm in the lung group and at 520 to 580 nm in the spleen group showed significant difference from the other groups, and the lung group was lower and the spleen group was higher than the others., Conclusion: There are some differences in facial spectrum and color in different sites of the face in sub-health status of different viscera syndrome types, which can provide an objective basis for health evaluation.

Objective: To establish an analytical method for tongue image acquisition under natural daylight based on L*a*b* error correction, and to observe the classification rules of tongue color using color error correction., Methods: The tongue images in 413 cases were collected under natural indoor daylight by using Nikon D70 digital SLR camera, and then the color error was adjusted by using Nikon Capture NX software correction according to Kodak Q-13 grey card. The classification and quantitative analysis of the tongue color after software correction was carried out depending on L*a*b* color space., Results: The software correction method had good effects in adjusting the tongue color image error. The L* values of light red, deep red and cyanosis tongues decreased as compared with that of light white tongue (P<0.01), while the a* values of light red, deep red and cyanosis tongues increased as compared with light white tongue (P<0.01). There was no significant difference in L* value between deep red tongue and cyanosis tongue, and there was also no significant difference in a* value between light red tongue and cyanosis tongue. The b* values of light red and deep red tongues increased as compared with that of light white tongue (P<0.01), while the b* value of cyanosis tongue decreased as compared with light red and deep red tongues (P<0.01). There was no significant difference in b* value between light white tongue and cyanosis tongue, and there was also no significant difference in b* value between light red tongue and deep red tongue. The a* value of white fur was higher than that of yellow fur (P<0.01), while the b* value of white fur was lower than that of yellow fur (P<0.01). There was no significant difference in L* value between white fur and yellow fur., Conclusion: The analytical method for tongue image acquisition under natural daylight based on L*a*b* error correction is accurate in color restoration and feasible to operate.