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ObjectiveTo explore the application effect of Jianpi Huoxue prescription combined with acupuncture in patients with chronic atrophic gastritis （CAG） of gastric blood stasis type. MethodA total of 86 patients with CAG admitted to Wuhan First Hospital from November 2021 to March 2023 were selected and randomly divided into two groups. The control group was treated with conventional Western medicine， while the observation group was treated with Jianpi Huoxue prescription combined with acupuncture. The clinical efficacy， traditional Chinese medicine （TCM） syndrome score， pathological score， negative conversion rate of Helicobacter pylori （Hp）， inflammatory indicators ［neutrophils/lymphocytes （NLR） and interleukin （IL）-1β］， changes in levels of gastric protease （PG） Ⅰ， PG Ⅰ/PG Ⅱ， and gastrin-17 （G-17）， and drug safety during treatment were observed after treatment in both groups. ResultAfter treatment， the total effective rate of the observation group ［95.35% （41/43）］ was significantly better than that of the control group ［79.07% （34/43）］， and the difference was statistically significant （χ2=5.108， P<0.05）. After treatment， the scores of the primary and secondary TCM syndromes in the observation group and the control group were significantly decreased （P<0.05）. After treatment， the scores of primary and secondary TCM syndromes in the observation group were significantly lower than those in the control group （P<0.05）. After treatment， the pathological scores of gastric mucosa atrophy， activity， chronic inflammation， intestinal metaplasia， and dysplasia were significantly lower in the observation group and control group （P<0.05）. After treatment， the pathological scores of gastric mucosa atrophy， activity， chronic inflammation， intestinal metaplasia， and dysplasia in the observation group were significantly lower than those in the control group （P<0.05）. After treatment， the Hp conversion rate in the observation group was significantly increased compared with the control group （P<0.05）. After treatment， the levels of inflammatory indicators NLR and IL-1β in the observation group and control group were significantly lower （P<0.05）， and the levels of inflammatory indicators NLR and IL-1β in the observation group were significantly lower than those in the control group （P<0.05）. After treatment， the levels of PGI and PGⅠ/PGⅡ in the observation group and control group were significantly higher （P<0.05）， and the levels of PGI and PGⅠ/PGⅡ in the observation group were significantly higher than those in the control group （P<0.05）. After treatment， the G-17 level of the observation group and the control group was different at different time points （P<0.05）， and the G-17 level of the observation group was higher at different time points than that of the control group （P<0.05）. The G-17 level of the observation group had an increasing trend compared with the control group （P<0.05）. There was no significant difference in the risk of adverse reactions between the two groups. ConclusionThe combination of Jianpi Huoxue prescription and acupuncture can effectively alleviate symptoms， increase Hp negative conversion rate， inhibit inflammation， and regulate PG and G-17 levels in CAG patients， thus controlling or even reversing gastric mucosal atrophy and reducing the probability of its progression to gastric cancer.
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ObjectiveBased on ultra performance liquid chromatography-mass spectrometry（UPLC-MS） and non-targeted metabolomics technology to discuss the central regulatory effect of Chaishao Liujuntang on chronic atrophic gastritis（CAG） rats with liver-depression and spleen-deficiency， and to look for the correlation between cerebral cortex， hypothalamus and metabolic status of gastric tissues. MethodA CAG rat model with liver-depression and spleen-deficiency was established by chemical induction， hunger and satiety disorders， chronic restraint and tail clamping stimulation， lasting for 16 weeks. Twenty-eight Wistar rats were randomly divided into a blank group of 8 rats and a model group of 20 rats. After the completion of modeling， 4 rats in the model group were taken to observe the pathological changes of gastric mucosa. The remaining model rats were randomly divided into a model group of 8 rats and a Chaishao Liujuntang group of 8 rats. Chaishao Liujuntang group rats were given 5.1 g·kg-1 by gavage， and the remaining rats were given equal volume sterilized water by gavage for 4 weeks. Macroscopic characteristics， behavioral indicators and histopathological changes of the gastric mucosa of rats in each group were observed and compared. UPLC-MS non-targeted metabolomics was used to explore the metabolic regulation effect of Chaishao Liujuntang on the cerebral cortex， hypothalamus and stomach tissues of CAG rats with liver-depression and spleen-deficiency. Pearson correlation coefficient method was used to analyze the correlation between different tissue metabolites. ResultCompared with the model group， the macroscopic characteristics of rats in Chaishao Liujuntang group were improved， such as hair color， mental state and stool properties， and the number of times of crossing and standing in the open field experiment was significantly increased， and the static time of forced swimming was significantly reduced（P<0.01）， and the gastric mucosa atrophy was reduced. The metabolic data from the cerebral cortex of rats in each group identified a total of 3 common potential biomarkers， but not enriched in pathways， 26 common potential biomarkers were identified in the hypothalamus， and the key metabolic pathways involved were mainly enriched in purine metabolism， glycerol phospholipid metabolism， D-glutamine and D-glutamic acid metabolism. Seventeen common potential biomarkers were identified in the stomach， and the key metabolic pathways involved were mainly enriched in thiamine metabolism， valine， leucine and isoleucine biosynthesis， and taurine and taurine metabolism. Correlation analysis of metabolites in different tissues revealed that multiple amino acids and their derivatives mediated metabolic connections between the cerebral cortex， hypothalamus and stomach of rats. ConclusionThe metabolic disorders in the cerebral cortex， hypothalamus and stomach of CAG rats with liver-depression and spleen-deficiency have their own characteristics， mainly manifested by changes in the content of glycerol phospholipids， fatty acids and bile acid metabolites. Moreover， Chaishao Liujuntang may play a central regulatory role in CAG rats with liver-depression and spleen-deficiency by correcting the metabolic disorders of amino acids.
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Introducción. En Asia y Europa, el sistema OLGA ha sido útil como marcador de riesgo de cáncer gástrico. Sin embargo, su utilidad en poblaciones de alto riesgo en Colombia aún se desconoce. Objetivo. Establecer si los estadios OLGA se asocian con un mayor riesgo de cáncer y displasia en una población de alto riesgo en Colombia y determinar la capacidad diagnóstica de la escala para evaluar dicho riesgo. Materiales y métodos. Se realizó un estudio multicéntrico con pacientes con cáncer gástrico y displasia (casos), y pacientes con atrofia y metaplasia intestinal (controles), provenientes de tres centros de una zona de alto riesgo de cáncer gástrico en Colombia. Se incluyeron 506 pacientes cuyo estudio endoscópico e histopatológico fue realizado mediante el sistema de Sydney y la estadificación de OLGA propuesta por Rugge. El efecto de cada variable de interés sobre la enfermedad (cáncer gástrico y displasia) se evaluó mediante modelos bivariados y multivariados. Un valor de p menor de 0,05 se consideró estadísticamente significativo. Resultados. Los estadios elevados del sistema OLGA (III-IV) se asociaron con un mayor riesgo de displasia y cáncer gástrico (OR ajustado = 8,71; IC95 % = 5,09-14,9; p=0,001) con una sensibilidad del 54,9 %, especificidad del 89,3 % y una razón de probabilidad positiva de 5,17. Conclusiones. El estadio OLGA es un marcador de riesgo de cáncer gástrico y displasia en la población de estudio. Se recomienda su implementación como estrategia para optimizar el diagnóstico oportuno y el seguimiento de pacientes con mayor riesgo.
Introduction. The OLGA system has been proved to be useful in Asia and Europe as a risk marker of gastric cancer. However, its usefulness in high-risk populations in Colombia is still unknown. Objective. To assess potential associations between the OLGA staging system and an increased risk of gastric cancer and dysplasia in a high-risk Colombian population and to establish diagnostic capacity of the scale to assess the risk. Materials and methods. We carried out a multicenter study including patients with cancer and dysplasia (cases) and patients with atrophy and intestinal metaplasia (controls). A total of 506 patients were recruited from three centers in an area with a high risk population in Colombia. The endoscopic and histopathologic studies were evaluated according to the Sydney system and the OLGA staging system proposed by Rugge. The effect of each variable on the disease (gastric cancer and dysplasia) was evaluated using bivariate and multivariate models. Statistical significance was set considering a p value inferior to 0.05. Results. Advanced stages of the OLGA system (III-IV) were associated with a higher risk of dysplasia and gastric cancer (adjusted OR = 8.71; CI95% = 5.09-14.9; p=0.001), sensitivity=54.9%, specificity=89.3% and positive likelihood ratio=5.17. Conclusions. The OLGA staging system is a risk marker for gastric cancer and dysplasia in the studied population. We recommend its implementation to improve the timely diagnosis and follow-up of patients with the highest cancer risk.
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Atrophic vaginitis is a common condition that occurs in post menopause due to the deficiency of estrogen. The condition Atrophic vaginitis is defined as atrophy of the vaginal epithelium due to decreased estrogen levels. This common menopausal condition which is often underreported and under diagnosed is caused by estrogen related changes to the vaginal epithelium and can adversely affect quality of life. Atrophic vaginitis is a common condition in postmenopausal women experience due to estrogen deficiency that causes involution of the vaginal tissue, leading to vaginal dryness, burning sensation in vagina and dyspareunia, the atrophy of the vulvovaginal structures occurs due to estrogen deficiency. Among them Sushka yoniroga can be most suitably correlated with Atrophic vaginitis. The management principle of Atrophic vaginitis includes Vathika yoniroga chikitsa, along with Sthanika chikitsa. Treatment mainly aims at Vatapittasamana, Brimhana, Balya and natural supplementation of estrogen containing drugs. Sthanika chikitsa like Yonipooranam, Pichu dharanam, etc can be done in Atrophic vaginitis. Sthanika chikitsa which is of prime importance in the management of Streeroga facilitates absorption of drugs through the vagina as the walls and adjacent tissues are highly vascular, where the medicines are administered intra vaginally. In the present case, Yonipoorana as Sthanika chikitsa as tried. A 54 year old lady was presented with complaints of burning sensation in vagina and pain during sexual intercourse. The vaginal examination was painful and the walls are found inflamed, she was diagnosed with Atrophic vaginitis. She was sent to cytological screening. The reports revealed high grade parabasal cells and low grade superficial cells. The maturation index was found 60/25/5 vaginal pH was 5.3. Pap smear was done which was negative for intraepithelial lesion or malignancy. Dasapaka Bala tailam was administered intravaginally for 7 days in 3 consecutive months. During follow up she was relieved from the symptoms like burning sensation in vagina and pain during sexual intercourse. From this case report, it shows that Yonipoorana with Dasapaka Bala tailam is effective for the management of Atrophic vaginitis.
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Atrophic kidney like lesion (AKLL) is a recently described benign entity with only 14 cases reported so far. Genitourinary Pathology Society proposed inclusion of AKLL as a provisional entity in 2021. It mimics thyroid follicular-like carcinoma of kidney as it has a follicular architecture. We report a case of an 18-year-old female with detection of renal mass, while the patient was being investigated for abdominal pain. Mediastinal nodes were also enlarged with detection of necrotizing granulomas on biopsy. Histology revealed a tumor enveloped by a thick capsule with smooth muscle fibers, varying sized follicles, interspersed atrophic tubules, and calcifications. Immunohistochemically, the “cystic follicles” show WT1 +/PAX8 -/CK7-phenotype, while atrophic tubules present between “cystic follicles” harbor WT1 -/PAX8 +/CK7 + phenotype. Morphological diagnosis and differential diagnosis will be discussed.
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Objective:To investigate the correlation of serum pro-gastrin-releasing peptide (ProGRP), sugar chain antigen 242(CA242), procalcitonin(PCT) levels in patients with chronic atrophic gastritis (CAG) with intestinal metaplasia and Helicobacter pylori(Hp) infection and prognosis.Methods:One hundred patients with CAG intestinal metaplasia in Emergency General Hospital were selected as the research objects, and they were divided into infection group (75 cases) and non-infected group (25 cases) according to whether they had Hp infection. The clinical data, levels of serum ProGRP, CA242, and PCT were compared between the two groups, and the diagnostic value of the combination of serum indicators in the diagnosis of Hp infection in CAG intestinal metaplasia patients and their correlation with prognosis were analyzed.Results:The degree of atrophy and intestinal metaplasia in the infected group were higher than those in the non-infected group ( P<0.05). The levels of serum ProGRP, CA242 and PCT in the infected group were higher than those in the non-infected group: (159.41 ± 42.38) ng/L vs. (105.84 ± 18.29) ng/L, (7.24 ± 2.28) kU/L vs. (4.12 ± 1.30) kU/L, (3.84 ± 1.12)μg/L vs. (2.57 ± 0.82) μg/L, there were statistical differences ( P<0.05). The results of Spearman analysis showed that the levels of ProGRP, CA242, PCT had positive correlation with atrophy degree ( r = 0.614, 0.629, 0.672, P<0.05), and had positive correlation with intestinal metaplasia degree ( r = 0.574, 0.591, 0.603, P<0.05). The area under the curve (AUC) for the combined diagnosis of Hp infection in patients with CAG intestinal metaplasia by serum ProGRP, CA242, and PCT was 0.874 (95% CI 0.793 - 0.932), the diagnostic sensitivity and specificity were 76.00% and 92.00%, respectively. The incidence of gastric neoplasms in patients with Hp positive combined diagnosis of serum ProGRP, CA242, and PCT within 2 years (11.86%) was higher than that of negative patients (0), but the difference was not statistically significant ( P>0.05). Conclusions:The levels of serum ProGRP, CA242 and PCT in patients with CAG intestinal metaplasia are closely related to Hp infection. The combination of various indicators has high application value in the diagnosis of Hp infection.
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Precancerous lesions of gastric cancer (PLGC) is a pathological change accompanied by intestinal metaplasia and dysplasia on the basis of chronic atrophic gastritis. It is also an important stage of "inflammation-cancer transformation" on gastric mucosa. Paying attention to the intervention of PLGC has important value and significance for the secondary prevention of gastric cancer. PLGC has the characteristics of occult onset, toxin damaging collaterals, and long course of disease, which is highly consistent to the pathogenesis characteristics of incubative pathogenic factors. Based on the relevance of incubative pathogenic factors and PLGC, treatment of PLGC from the perspective of incubative pathogenic factors should be mainly strengthening the spleen and stomach, and combined with the methods of regulating qi and dissipating dampness, and removing blood stasis and detoxification. It should also pay attention to the prognosis.Paying attention to the body-mind treatment can reduce the re-occurrence , so as to provide a new way of thinking for treating PLGC from incubative pathogenic factors.
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Objective:To evaluate the clinical effect of treatment of activating blood and removing blood stasis, invigorating the spleen and soothing the liver for the patients with gastric collateral stasis syndrome and chronic atrophic gastritis (CAG).Methods:Randomized controlled trial. A total of 68 CAG patients admitted to the Huairou Hospital of Traditional Chinese Medicine from January 2018 to January 2021 who met the selection criteria were divided into 2 groups according to the random number table method, with 34 in each group. The control group received conventional western medicine treatment, such as inhibition of acid, protecting the gastric mucosa, and the observation group was treated with Traditional Chinese Medicine (TCM) herbal prescription of activating blood and removing blood stasis, invigorating the spleen and soothing the liver. Both groups were treated for 12 weeks. TCM symptom scores were performed before and after treatment. The serum level of pepsinogen Ⅰ(PG Ⅰ), pepsinogen Ⅱ (PGⅡ) were detected by ELISA, and the PG Ⅰ/PG Ⅱ ratio was calculated. Gastroscopic biopsy was performed to observe the changes of intestinal metaplasia of gastric mucosa and glandular atrophy, and to evaluate the clinical efficacy.Results:The total responsive rate was 85.3% (29/34) in the study group and 58.8% (20/34) in the control group. There was significant difference between the two groups ( χ2=9.35, P=0.030). After treatment, the scores of stomachache, fullness of feeling in the observation group were significantly lower than those in the control group ( t=2.97, 3.80, P<0.05). After treatment, the level of serum PG Ⅰ[(76.21 ± 17.35) mg/L vs. (66.8 ± 18.77) mg/L, t=2.15] and PG Ⅰ/PG Ⅱ [(4.67 ± 0.99) vs. (3.90± 1.25), t=2.81] in the study group were significantly higher than those in the control group ( P<0.05), and PG Ⅱ [(16.36 ± 1.85) mg/L vs. (17.42 ± 2.05) mg/L, t=2.24] was significantly lower than that of the control group ( P<0.05). After treatment, intestinal metaplasia and glandular atrophy was significantly more improved or reversed than those in the control group ( χ2=20.67,9.33, P<0.05). Conclusion:The methods of activating blood and removing blood stasis, invigorating the spleen and soothing the liver can reverse the precancerous lesions of patients with gastric collateral stasis syndrome of chronic atrophic gastritis and have a good prognosis.
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OBJECTIVE@#To review the research progress of the feasibility of a new treatment method for atrophic rhinitis (ATR) based on tissue engineering technology (seed cells, scaffold materials, and growth factors), and provide new ideas for the treatment of ATR.@*METHODS@#The literature related to ATR was extensively reviewed. Focusing on the three aspects of seed cells, scaffold materials, and growth factors, the recent research progress of ATR treatment was reviewed, and the future directions of tissue engineering technology to treat ATR were proposed.@*RESULTS@#The pathogenesis and etiology of ATR are still unclear, and the effectiveness of the current treatments are still unsatisfactory. The construction of a cell-scaffold complex with sustained and controlled release of exogenous cytokines is expected to reverse the pathological changes of ATR, promoting the regeneration of normal nasal mucosa and reconstructing the atrophic turbinate. In recent years, the research progress of exosomes, three-dimensional printing, and organoids will promote the development of tissue engineering technology for ATR.@*CONCLUSION@#Tissue engineering technology can provide a new treatment method for ATR.
Subject(s)
Humans , Tissue Engineering/methods , Tissue Scaffolds , Rhinitis, Atrophic , Printing, Three-Dimensional , CytokinesABSTRACT
ObjectiveTo mine the compatibility rules of patented traditional Chinese medicine (TCM) compound prescriptions for treating chronic atrophic gastritis (CAG) by systems pharmacology and molecular docking methods, and predict the targets and molecular mechanisms of Chinese medicinals with different efficacy in the treatment of CAG. MethodThe TCM compound prescriptions for treating CAG were extracted from the patent system of the China National Intellectual Property Administration. The active components and targets of the prescriptions were retrieved from the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP), Traditional Chinese Medicine Integrative Database (TCMID), and UniProt. The candidate targets and pathways of CAG were obtained from GeneCards, DisGeNet, Online Mendelian Inheritance in Man (OMIM), MalaCards, Kyoto Encyclopedia of Genes and Genomes (KEGG) and Reactome. The gene ontology (GO) functional annotation and KEGG pathway enrichment were realized by R Studio 4.1.2. STRING11.0 was employed to build the protein-protein interaction (PPI) network, and AutoDock Vina 4.2.6 was used for the docking between key targets and components. ResultA total of 228 TCM compound prescriptions for treating CAG were extracted. The medicinals used in these prescriptions mainly had warm or cold nature, bitter or sweet taste, tropism to the spleen, stomach, and liver meridians, and the efficacy of tonifying Qi, regulating Qi movement, clearing heat, and activating and toniying blood. The prescriptions mainly treated CAG via p53, mitogen-activated protein kinase (MAPK), phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt), forkhead box protein O (FoxO), vascular endothelial growth factor (VEGF), and hypoxia-inducible factor-1 (HIF-1) signaling pathways. Molecular docking results confirmed that the active components in the prescriptions had docking activities with key receptor proteins. ConclusionThis study preliminarily analyzed the compatibility rules of TCM compound prescriptions in the treatment of CAG. The medicinals with different efficacy treat CAG by regulating cell proliferation, apoptosis, and oxidative stress response, preventing carcinogen production, promoting gastric acid secretion, and improving local microcirculation in a multi-target, multi-pathway, multi-link manner. The findings facilitate the research on the TCM treatment of CAG.
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AIM: To analyze the causality between type 2 diabetes mellitus(T2DM)and age-related macular degeneration(ARMD)based on two-sample Mendelian randomization(MR).METHODS: T2DM and ARMD samples were extracted from the FinnGen database. Inverse variance weighted(IVW)was used as the main analysis method, MR-Egger and weighted median(WM)as supplementary methods to analyze the potential relationship between them. In addition, Cochran Q test and MR-Egger intercept were also used to analyze the sensitivity, and the P-value was used as the index of research results.RESULTS: IVW showed that T2DM was associated with the incidence of exudative ARMD(OR=1.14, 95%CI 1.01～1.28, P=0.021), but it was not significantly associated with the incidence of atrophic ARMD(OR=0.96, 95%CI 0.86～1.07, P=0.554). The results of sensitivity analysis confirmed that there was no heterogeneity and pleiotropy in this study, and the results were reliable.CONCLUSION: There is a causal relationship between T2DM and exudative ARMD. Considering the high rate of blindness caused by ARMD, it is of great significance to recognize and control the risk factors of ARMD to reduce its prevalence rate and early diagnosis and treatment.
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Chronic atrophic gastritis （CAG） is a common and intractable disease in the digestive system characterized by the reduction or disappearance of gastric mucosal glands. The intestinal metaplasia or dysplasia in CAG is called precancerous lesion， which greatly increases the risk of cancerization. Dysactivation of nucleotide-binding oligomerization domain-like receptor protein 3 （NLRP3） inflammatory corpuscles can release a large number of inflammatory factors， induce inflammatory cascade reactions， and participate in the process of many diseases. As reported， the dysactivation of NLRP3 inflammatory corpuscles can cause long-term chronic inflammatory infiltration of gastric mucosa and induce the development of CAG. Mitochondrial dysfunction plays an important role in the activation of NLRP3 inflammatory corpuscles. The accumulation of reactive oxygen species （ROS） produced by mitochondrial dysfunction is the key to activating NLRP3 inflammatory corpuscles. Professor LIU Youzhang put forward the theory of "spleen-mitochondrion correlation"， which holds that the spleen mainly transports water and grains， generates qi and blood， transports nutrients to the whole body， and supplies energy and materials needed by the body. Adenosine triphosphate （ATP） generated by mitochondria through the circulation of tricarboxylic acid is the main energy source of the human body. The view that both of them serve as human energy processing plants coincides in terms of physiology. Pathologically， spleen deficiency is associated with mitochondrial oxidative phosphorylation dysfunction. Pathological products such as dampness， turbidity， phlegm， and blood stasis due to failure in transportation because of spleen deficiency are consistent with metabolites generated by mitochondrial dysfunction. Based on the theory of "spleen-mitochondrion correlation"， this study discussed the pathogenesis of CAG in traditional Chinese medicine （TCM）， analyzed the relationship between NLRP3 inflammatory corpuscles and the pathogenesis of CAG， and proposed that the activation of NLRP3 inflammatory corpuscles by mitochondrial dysfunction was the modern biological basis of the pathogenesis of spleen deficiency in CAG. The spleen-strengthening method may be related to improving the mitochondrial function and inflammatory response of patients with CAG and alleviating the damage of gastric mucosa， providing a new idea for TCM in the prevention and treatment of CAG.
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Gastric ''inflammation-cancer'' transformation stars from inflammation and ends as gastric cancer （GC）， and the pathogenesis is still unclear. In China， GC features high morbidity and mortality and poor prognosis， influencing the quality of life and physical and mental health of patients. Therefore， it is of great significance to construct the prevention and treatment system for GC. Chronic atrophic gastritis （CAG） plays a key role in the occurrence， development， and outcome of gastric ''inflammation-cancer'' transformation. Modern therapies for CAG generally aim at eliminating causes and alleviating clinical symptoms， which show satisfactory short-term efficacy， but the reverse and recurrence are common. Based on the holistic view， syndrome differentiation-based treatment， and the ''inflammation-cancer'' transformation in modern medicine， traditional Chinese medicine emphasizes both prevention and treatment， with individualized therapies for CAG and GC to control the transformation. According to the pathogenesis of CAG-asthenia in origin and sthenia in superficiality and deficiency-excess in complexity， this study proposed the theory of spleen deficiency and pathogen stagnation in CAG， and believed spleen deficiency， pathogen， and stagnation are respectively the root cause of， the main factor of， and the key to ''inflammation-cancer'' transformation， respectively. Spleen deficiency and pathogen stagnation are closely related to the process of the transformation. For the treatment， the spleen-invigorating and pathogen-eliminating method should be used for invigorating the spleen to consolidate original Qi， improve the blood supply in stomach， and regulate immunity， and eliminating the pathogen to relieve stagnation， reduce the occurrence of non-controllable inflammation， and improve inflammatory micro-environment. As a result， the gastric inflammation is controlled at the early stage and the gastric ''inflammation-cancer'' transformation is blocked. The gastric mucosal lesions are blocked， delayed， or even reversed. This study provides a new idea in clinical diagnosis and treatment of CAG and in the prevention of GC.
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Objective:To investigate the correlation between telomere dysfunction of human gastric mucosa and chronic atrophic gastritis (CAG).Methods:From February 12, 2019 to July 10, 2020, at Endoscopy Center, Guang′anmen Hospital, China Academy of Chinese Sciences, 30 patients received endoscopy and pathological diagnosed with CAG (CAG group) were collected, and 30 patients with chronic non-atrophic gastritis (CNAG) were collected at the same time (CNAG group). The relative telomere length was detected by real time fluorescent quantitative polymerase chain reaction. The expression of telomere repeat binding factor (TRF) 1, TRF2 and protection of telomere (POT) 1 at protein level were detected by immunohistochemical staining and semi-quantitative analysis. Spearman analysis was used to analyze the correlation between the relative telomere length of gastric mucosa and the protein expression levels of TRF1, TRF2 and POT1. Mann-Whitney U test and independent sample t test were used for statistical analysis. Results:The relative telomere length of the gastric mucosa in the CAG group was shorter than that in the CNAG group (0.67 (0.51 to 1.17) vs. 1.06(0.69 to 1.37)), and the difference was statistically significant ( U=297.00, P=0.024). The protein expression levels of TRF1, TRF2, and POT1 in the CAG group were all higher than those in the CNAG group, respectively (4.26±2.49 vs. 1.86±1.34, 10.12±2.76 vs. 8.78±2.81, 4.22±2.48 vs. 2.53±1.62), and the differences were statistically significant ( t=8.05, 3.23, 5.39; P<0.001, =0.001, and <0.001). In the CAG group, the protein expression levels of TRF2 and POT1 in gastric mucosa were negatively correlated with the relative telomere length ( r=-0.477 and -0.417, P=0.008 and 0.022). Conclusions:The telomere dysfunction is related to the pathogenesis of CAG. The change of telomere binding protein expression level is involved in the shortening of telomere and pathological process of CAG patients.
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Introduction@#Cases of gastric cancer have been declining worldwide in recent years. However, gastric cancer incidence increased in the last decade in Mongolia. In Mongolia, over 80% of gastric cancer cases are diagnosed during the late stage. Several studies have revealed that serum pepsinogens (PGs) level reflects, indirectly, histological and functional characteristics of the gastric mucosa.@*Goal@#We aimed to evaluate the risk of gastric cancer and its precancerous condition based on serum PGI, PGI/II biomarkers.@*Materials and Methods@#This case-control study enrolled 114 subjects, including patients with gastric cancer (n=36), atrophic gastritis (n=40) and healthy controls (n=138). The questionnaires were obtained to determine risk factors. Serum PGI, PGII, and H. pylori IgG levels were measured by ELISA (Pepsinogen I ELISA; Pepsinogen II ELISA; H.Pylori IgG ELISA; BIOHIT Plc, Helsinki, Finland). PGI to PGII ratio was calculated. Patients were classified into the ABC(D) group according to Miki K approach. Also, we developed new scoring system based on some risk factors and serum PGI, PGI/II ratio. Logistic regressions were performed to evaluate risk and expressed by odds ratio (OR) and 95% confidence intervals (95%CI).@*Results@#Mean age of the subjects was 60±10.9 years. H.Pylori was positive in 67 subjects. The serum PGI and PGI/II ratio levels were significantly decreased in gastric cancer and atrophic gastritis groups compared to the healthy control. According to classification ABC(D), group D (OR 5.04, 95% CI 1.13-22.50) had higher proportion of atrophic gastritis cases, group C (OR 6.19, 95% CI 1.04-36.78) had higher proportion of gastric cancer cases than others. Additionally, we created a risk prediction scoring system with a score ranging from 0 to 7, based on variables age, family history of gastric cancer, prior disease history, PGI and PGI/II ratio levels. For the atrophic gastritis patients, 17 (42.5%) were classified into medium-risk category (OR 4.49, 95% CI 1.38-14.58) and 17 (42.5%) were classified into high-risk category (OR 7.69, 95% CI 2.16-27.43). Whereas, 11 (30.6%) patients with gastric cancer were classified into medium-risk category (OR 4.35, 95% CI 1.13-16.85), 21 (58.3%) were classified into high-risk category (OR 14.25, 95% CI 3.60-56.43).@*Conclusion@#The methods based on serum PGI and PGI/II may identify a high risk population of gastric cancer and atrophic gastritis.
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A 63-year-old male patient, who had a severely resorbed edentulous maxillary arch and partially edentulous mandibular arch decided on the implant-supported fixed treatment option to replace the edentulous maxillary arch. The fully guided implant placement that utilizes the computer-generated guide is more accurate than traditional surgical guides and free-hand placements. The researchers have correlated possible implant failure risk factors with age, sex, smoking, type of edentulism, bone quality and volume, implant location, angulation, diameter, length, and various systemic factors. This case report demonstrated the failure cause of virtually planned anterior implants in All-on-4 and how to manage it by free-hand surgery without surgical guides.
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Background: Gastric neuroendocrine tumors (G-NETs) are classified into well-differentiated NETs with three grades and poorly differentiated neuroendocrine carcinomas based on morphology and the Ki-67 index. Besides, G-NETs are broadly classified into four types based on clinical and pathophysiological features. Aim: To study clinical and pathological features of different types and grades of G-NET. Materials and Method: All G-NETs, diagnosed from January 2011 to December 2020, were included. Clinical presentation, peritumoral findings, lymph node status, and liver involvement were obtained and correlated with different grades and types of G-NETs. Results: NET was diagnosed in 88 cases. Tumors were graded as I, II, III, and carcinoma in 58, 14, 12, and 4 cases, respectively. Type I NET (49.2%) in the background of chronic atrophic gastritis was the most common type followed by type III (33.3%). Type I tumors were predominantly graded I (91.1%) and limited to the mucosa and submucosa. MEN-1-associated G-NET (type II) was seen in eight cases. All except one type II tumor was associated with ZES syndrome. Remarkably, peritumoral mucosa showed atrophy and intestinal metaplasia in 52.1% and 24.6% cases, respectively. Two cases were associated with adenocarcinoma. Lymph node metastasis was seen in all carcinoma and grade III cases. All carcinoma cases and 58.3% of grade III tumors showed liver metastasis. Conclusion: Biological behavior of G-NET varies with different types and grades of tumor. Typing and grading of G-NET should be done whenever possible to predict the aggressiveness of the tumor.
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Abstract Introduction: Costa Rica has among the highest mortality rates from gastric cancer in the world, largely due to late detection. It is therefore important that economically and logistically sustainable screening is implemented in order to detect risk of developing cancer. We have previously shown that low pepsinogen (PG) values and infection with Helicobacter pylori-CagA+ are associated with risk of gastric atrophy and cancer in Costa Rican populations. OBJECTIVES: To determine how markers for gastric cancer risk are distributed in an elderly population representative of Costa Rica in order to design a screening strategy. METHODS: The population studied consists of 2,652 participants in a nationally representative survey of ageing. Information concerning epidemiologic, demographic, nutritional and life style factors is available. Serum PG concentrations as well as H. pylori and CagA status were determined by serology. Possible associations were determined by regression analyses. RESULTS: Antibodies to H. pylori were present in 72% of the population and of those, 58% were CagA positive. Infection with H. pylori was associated with higher PGI concentrations (p=0.000) and infection with H. pylori-CagA. with lower PGI concentrations (p=0.025). Both showed association with lower PGI/PGII (p=0.006 and p=0.000). Higher age was associated with lower prevalence of H. pylori infection (OR=0.98; p=0.000) and CagA. (OR=0.98; p=0.000) but not with PG values. Regions with high risk of gastric cancer showed lower PGI (p=0.004) and PGI/PGII values (p=0.021) as well as higher prevalence of H. pylori infection (OR=1.39; p=0.013) but not CagA.. Using cut-off values of PGI<100 µg/L and PGI/PGII<2.0, 2.5 and 3.0, 7-15% of the population would be considered at risk. CONCLUSIONS: H. pylorialone is not a useful marker for risk of gastric cancer. Screening using serum pepsinogen concentrations and infection with H. pylori-CagA. is feasible in the general elderly population of Costa Rica but appropriate cut-off values have to be determined based on more clinical data and follow up capacity.
Resumen Introducción: Costa Rica tiene una de las tasas de mortalidad por cáncer gástrico más altas del mundo, en gran parte debido a la detección tardía. Por lo tanto, es importante que se implemente un tamizaje económico y logísticamente sostenible para detectar el riesgo de desarrollar cáncer. En estudios anteriores demostramos, que valores bajos de pepsinógeno (PG) y la infección por Helicobacter pylori-CagA+ están asociados con el riesgo de atrofia gástrica y cáncer en poblaciones costarricenses. OBJETIVO: Determinar cómo se distribuyen los marcadores de riesgo de cáncer gástrico en una población representativa de adultos de Costa Rica para diseñar una estrategia de tamizaje. MÉTODOS: Se estudió una población representativa a nivel nacional de 2.652 adultos, que formaron parte de un estudio longitudinal sobre envejecimiento. Se dispone de información sobre factores epidemiológicos, demográficos, nutricionales y de estilo de vida. Las concentraciones séricas de PG, así como el estado de H. pylori y CagA se determinaron mediante serología. Las posibles asociaciones se determinaron mediante modelos de regresión (logística y lineal múltiple). RESULTADOS: El 72% de la población presenta anticuerpos contra H. pylori, de ellos, el 58% fueron positivos para CagA. La infección por H. pylori se asoció con altas concentraciones de PGI (p = 0,000) y la infección por H. pylori-CagA+ con bajas concentraciones de PGI (p = 0,025). Ambas pruebas mostraron asociación con una baja razón PGI/PGII (p = 0,006 y p = 0,000). El rango de mayor edad se asoció con una menor prevalencia de la infección por H. pylori (OR = 0,98; p = 0,000) y de CagA+ (OR = 0,98; p = 0,000) pero no se asoció con los valores de PG. Las regiones con alto riesgo de CG mostraron valores bajos de PGI (p = 0,004) y de PGI/PGII (p = 0,021) así como una alta prevalencia de la infección por H. pylori (OR = 1,39; p = 0,013), no así con CagA+. Utilizando valores de corte de PGI<100 µg/L y de PGI/PGII <2,0, 2,5 y 3,0, se consideraría en riesgo de cáncer entre 7-15% de la población. CONCLUSIONES: La infección por H. pylori, por sí sola, no es un marcador de riesgo de CG útil. Es factible realizar el tamizaje de adultos de la población general de Costa Rica, utilizando como marcadores las concentraciones séricas de pepsinógenos y la infección por H. pylori-CagA+, sin embargo, los valores de corte apropiados deben determinarse con base en una mayor cantidad de datos clínicos y la capacidad de seguimiento.
Subject(s)
Humans , Male , Female , Aged , Aged, 80 and over , Stomach Neoplasms , Helicobacter pylori , Costa Rica , Gastritis, AtrophicABSTRACT
Abstract The aim of this work is to describe and analyze the association of PGI/PGII ratio (indicator of gastric atrophy) with H. pylori-CagA and life style factors such as caloric intake, obesity, and harmful habits amongst H. pylori-positive elderly people infected in Costa Rica using an exploratory multigroup structural equations model (SEM). Using a sample of 1748 H. pylori-positive elderly people from CRELES first wave study, a SEM was employed analyze if the relationships between PGI/PGII ratio with levels of H. pylori-CagA, caloric intake, obesity, and harmful habits, differs by sex, age and risk areas subgroups. The proposed SEMs exhibited a good fit in males (RMSEA = 0.039), females (RMSEA = 0.000), low-risk area (RMSEA = 0.038), middle-risk area (RMSEA = 0.042), individuals under 80 years (RMSEA = 0.038) and individuals aged 80 and over (RMSEA = 0.042), while an acceptable fit was observed for the high-risk area (RMSEA = 0.061). Fitted SEMs showed that CagA predicted PG-ratio as expected, with effects increasing with the risk area, but similar between sex and age groups. All indicators measuring obesity (BMI, arms, and waist) showed significant standardized coefficients, with similar effects between sex, age and risk area groups. No other significant effects or differences between groups were identified. We propose a good-fitted SEM model for the possible relationships between CagA and PG ratio and the geographical risk area level for elderly people. No differences were observed on measured parameters between male and female population, or between under 80 years and older individuals.
Resumen El objetivo de este trabajo es describir y analizar la asociación entre PGI/PGII (indicador de atrofia gástrica con H. pylori-CagA y factores asociados a estilo de vida como ingesta calórica, obesidad y hábitos nocivos entre adultos mayores positivos por H. pylori en Costa Rica utilizando modelos de ecuaciones estructurales multigrupo (SEM). Con una muestra de 1748 adultos mayores del estudio CRELES, se utilizó un SEM para analizar las relaciones entre PGI/PGII, CagA, ingesta calórica, obesidad y hábitos nocivos difieren por sexo, edad y áreas de riesgo. Los SEMs propuestos exhibieron un buen ajuste en hombres (RMSEA = 0.039), mujeres (RMSEA = 0.000), área de bajo riesgo (RMSEA = 0.038), áreas de riesgo medio (RMSEA = 0.042), individuos menores de 80 años (RMSEA = 0.038) e individuos de 80 años o más (RMSEA = 0.042), mientras que hubo un ajuste aceptable en áreas de alto riesgo (RMSEA = 0.061). Los SEMs ajustados mostraron que CagA predice la relación PGI/II en la dirección esperada con efectos proporcionales al área de riesgo, pero no por sexo y edad. Todos los indicadores medibles de obesidad (IMC, brazos y cintura) mostraron coeficientes estandarizados significativos con efectos similares entre los grupos por sexo, edad y área de riesgo. No se encontraron otros efectos o diferencias significativas. Proponemos un modelo SEM bien ajustado para las posibles relaciones entre CagA y PGI/II y el nivel de riesgo del área geográfica en adultos mayores. No se encontraron diferencias en las variables analizadas entre hombres y mujeres ni entre los grupos de edad.
Subject(s)
Humans , Male , Female , Aged , Aged, 80 and over , Helicobacter pylori , Energy Intake , Gastritis, Atrophic , ObesityABSTRACT
Analisar o manejo de fraturas em mandíbula atrófica voltado para a abordagem cirúrgica com ênfase na melhor técnica indicada. A perda óssea alveolar tem sido uma das consequências do edentulismo, que tem o potencial de levar a atrofia óssea. As fraturas de mandíbulas atróficas, normalmente são consideradas um procedimento desafiador, devido ser encontrada em pacientes idosos ou em virtude da perda dentária precoce resultando em um reparo dessas fraturas mais complexo. Os principais fatores etiológicos têm sido os acidentes automobilísticos, seguidos de queda e agressão. Geralmente, as causas das quedas decorrem de desequilíbrio, fraqueza muscular, tontura, e uso crônico de medicamentos como sedativos. As opções terapêuticas objetivam restaurar forma, função e imobilização apropriada desse possível evento. A individualização do tratamento de escolha é de grande importância, pois geralmente o paciente apresenta alterações fisiológicas decorrentes do envelhecimento e ossos mais fragilizados com potencial osteogênico reduzido, que dificultam a abordagem cirúrgica. Entretanto, deve ser considerado para o manejo dessas fraturas, a idade do paciente, as condições e quantidade de tecido ósseo e tecido mole. Porém, vale ressaltar que o envelhecimento não apresenta contraindicação, apenas exige condições especiais que devem ser consideradas. Nesse sentido, quando há oportunidade de dispositivos tecnológicos, como os biomodelos que contribuem significativamente para procedimentos cirúrgicos bucomaxilofaciais, esses fornecem maior previsibilidade de resultados, bem como redução do tempo cirúrgico.
To analyze the management of fractures in atrophic mandible aimed at the surgical approach, emphasizing which technique is best indicated. Alveolar bone loss has been one of the consequences of edentulism, which has the potential to lead to bone atrophy. Atrophic jaw fractures are usually considered a challenging procedure, as they are found in elderly patients or due to early tooth loss, resulting in a more complex repair of these fractures. The main etiological factors have been described as car accidents, followed by falls and aggression. Commonly, the causes of falls stem from imbalance, muscle weakness, dizziness, and chronic use of medications such as sedatives. The therapeutic options aim to restore form, function and appropriate immobilization of this possible event. The individualization of the treatment of choice is of great importance, as the patient usually presents physiological changes resulting from aging and more brittle bones and a reduced osteogenic potential, which makes the surgical approach difficult. However, the patient's age, conditions and amount of bone and soft tissue must be taken into consideration for the management of these fractures. However, it is noteworthy that aging has no contraindication, it only requires special conditions that must be considered. In this sense, when there is an opportunity for technological devices, such as biomodels that significantly contribute to maxillofacial surgical procedures, it provides greater predictability of results, as well as reduced surgical time.