Cancer Cases Research Articles

Goodness-of-fit tests based on Kullback-Leibler divergence for bladder cancer survival analysis: Applications to exponentiated exponential distribution

Bladder cancer is among the ten most common types of cancer worldwide, with approximately 550,000 new cases occurring each year. It accounts for comprehensively compared to 3% of all newly diagnosed cancer cases and contributes to 2.1% of cancer-related deaths globally. This article introduces goodness-of-fit tests that aim to fit the exponentialized exponential distribution. These tests are based on the Kullback-Leibler difference and have been applied to censored and complete samples of Bladder Cancer Patients. We calculated critical values and statistical power measurements, considering the best and worst bandwidth scenarios. We then comprehensively compared essential values and power across various parameters, accounting for optimal and suboptimal bandwidth choices derived from the Kullback–Leibler difference. In the final phase of our study, we used a dataset of individuals diagnosed with bladder cancer to demonstrate the practical applicability of our proposed research. Finally, this modeling type can benefit researchers and healthcare professionals through time-to-event analysis (survival analysis), investigation of events, medical decision-making, and risk prediction.

The Diagnostic Value of Endobronchial Ultrasound-Guided Fine Needle Aspiration (EBUS-FNA) in Diagnosing FDG-PET-Avid Lymph Nodes in Extrapulmonary Malignancies.

Background and objective The accurate diagnosis of extrapulmonary malignancies with mediastinal lymphadenopathy is crucial for effective patient management. Endobronchial ultrasound-guided fine-needle aspiration(EBUS-FNA)has emerged as a valuable tool in assessingfluorodeoxyglucose (FDG)-positron emission tomography(PET)-avid lymph nodes (LNs).In this study, we aimed to evaluate the diagnostic value of EBUS-FNA in patients with mediastinal lymphadenopathy in extrapulmonary malignancies and compare its efficacy with PET-CT. Methodology Thisretrospective, cross-sectional study was conducted at Shaukat Khanum Memorial Cancer Hospital and Research Center, Lahore, from February 2018 to February 2023. It included patients with extrapulmonary malignancies with mediastinal lymphadenopathy displaying abnormal PET-CT uptake, with LN diameters ≥5 mm, excluding lung cancer cases. Data on demographics, malignancy type, LN involvement, PET-CT findings, and EBUS-FNA histopathology were collected. EBUS-FNA procedures involved a 22-gauge needle, and samples were analyzed cytologically and histologically. SPSS Statistics version 20 (IBM Corp., Armonk, NY) was used to perform the statistical analysis. Results The study analyzed a total of 216 patients. Males comprised 56.3% of the cohort, and females 43.7%. The most common malignancy was lymphoma (33.0%), followed by breast cancer (12.6%). EBUS-FNA exhibited a sensitivity of 90.9% compared to PET-CT's sensitivity of 72.7%. Lymph node morphology on EBUS showed low echogenicity and irregular borders in malignant cases. Subcarinaland right hilar were the most frequently sampled lymph nodes. The study found significant differences in lymph node characteristics between non-malignant and malignant groups, with EBUS-FNA effectively identifying malignancies. Conclusions EBUS-FNA demonstrates high sensitivity and diagnostic utility in identifying malignant lymph nodes in patients with extrapulmonary malignancies. Its effectiveness in detecting true positive cases highlights its importance as a complementary diagnostic tool to PET-CT in oncological diagnostics.

Longitudinal dynamics of circulating tumor DNA for treatment monitoring in patients with breast cancer recurrence

The prevalence and dynamics of circulating tumor DNA (ctDNA) in patients with breast cancer recurrence or de novo metastatic cancer were examined in a retrospective analysis of a prospective observational cohort. Twenty-three recurrent/metastatic breast cancer cases (8 locoregional, 15 distant metastasis) were enrolled, and sequential plasma samples were obtained. Anchor mutations were selected from the target sequencing of each patient’s primary and/or metastatic tumor. An in-house developed assay (UHS assay) was employed for a tumor-informed ctDNA assay during treatment and follow-up. A median of three (range 1–5) anchor mutations per case were applied for ctDNA detection. ctDNA was detected in 14 (63.6%, 14/22) cases at the time of enrollment and 18 (78.5%, 18/23) cases during follow-up. More anchor mutations and higher tumor burden were significantly related to higher ctDNA positive rates (p-value 0.036, 0.043, respectively). The mean enriched variant allele frequency (eVAF) at each time point was significantly higher for stable or progressive disease responses (ANOVA test p-value < 0.001). Eight patients showed an increase in their ctDNA eVAF prior to clinical progression with a mean lead time of 6.2 months (range 1.5–11 months). ctDNA dynamics measured using personalized assay reflected the clinical course of breast cancer recurrence.

M2 macrophage-derived lncRNA NORAD in EVs promotes NSCLC progression via miR-520g-3p/SMIM22/GALE axis

Non-small cell lung cancer (NSCLC) constitutes the majority of lung cancer cases, accounting for over 80%. RNAs in EVs play a pivotal role in various biological and pathological processes mediated by extracellular vesicle (EV). Long non-coding RNAs (lncRNAs) are widely associated with cancer-related functions, including cell proliferation, migration, invasion, and drug resistance. Tumor-associated macrophages are recognized as pivotal contributors to tumorigenesis. Given these insights, this study aims to uncover the impact of lncRNA NORAD in EVs derived from M2 macrophages in NSCLC cell lines and xenograft mouse models of NSCLC. EVs were meticulously isolated and verified based on their morphology and specific biomarkers. The interaction between lncRNA NORAD and SMIM22 was investigated using immunoprecipitation. The influence of SMIM22/GALE or lncRNA NORAD in EVs on glycolysis was assessed in NSCLC cell lines. Additionally, we evaluated the effects of M2 macrophage-derived lncRNA NORAD in EVs on cell proliferation and apoptosis through colony formation and flow cytometry assays. Furthermore, the impact of M2 macrophage-derived lncRNA NORAD in EVs on tumor growth was confirmed using xenograft tumor animal models. The results underscored the potential role of M2 macrophage-derived lncRNA NORAD in EVs in NSCLC. SMIM22/GALE promoted glycolysis and the proliferation of NSCLC cells. Furthermore, lncRNA NORAD in EVs targeted SMIM22 and miR-520g-3p in NSCLC cells. Notably, lncRNA NORAD in EVs promoted the proliferation of NSCLC cells and facilitated NSCLC tumor growth through the miR-520g-3p axis. In conclusion, M2 macrophage-derived lncRNA NORAD in EVs promotes NSCLC progression through the miR-520g-3p/SMIM22/GALE axis.

Knowledge about human papillomaviruses among students in Germany-a cross-sectional study with aneed for action

The human papillomavirus (HPV) is one of the most common viruses transmitted through intimate contact, causing many benign and malignant diseases. Vaccination protects against these diseases. Despite the HPV vaccination being recommended by the Standing Committee on Vaccination (STIKO), knowledge and vaccination rates in Germany are very low. Therefore, the aim of the study was to assess the HPV knowledge among German students. Between 06/2019 and 01/2024, anationwide online survey on HPV knowledge among students in Germany was distributed via the respective student councils. The survey included two aspects: 1)basic characteristics of the participants and 2)knowledge questions about HPV (e.g., transmission routes, effectiveness, and side effects of vaccination, knowledge about the HPV subtypes). Data collection was anonymous. Atotal of 459 students took part in the study. Of these, 335 (72.98%) were female, 122 (26.57%) were male, and2 (0.45%) did not specify their gender. The average age of the students was 24.02 years, and most of the participants were in their 6th (23.31%/107) semester. In all, 75.82% (348) of the participants were medical students followed by law students with 19.61% (90) participants. The most represented study location was Aachen, with 270 (58.82%) participants. Only about half (48.80%/223) of the students knew that approximately 8000 new cancer cases in Germany are HPV-associated annually. Regarding the HPV vaccination, more than athird (35.82%/163) of participants did not know that it also protects against genital warts, while 21.93% (100) did not know that boys can also benefit from the HPV vaccination and that it does not only improve HPV protection of girls against cervical cancer. Despite several years of HPV vaccination recommendation by the Standing Committee on Vaccination (STIKO), knowledge about HPV among college students still remains very low. Further prevention and educational efforts are needed to address HPV knowledge gaps, with the additional goal of improving HPV vaccination rates.

Health Professionals' Perceptions about Prostate Cancer-A Focus Group Study.

Prostate cancer (PCa) accounts for 20% of new cancer cases and 10.5% of cancer-associated mortality in Portugal. Associated risk factors include advanced age, family history, genetic alterations, and race/ethnicity. However, the role of lifestyle factors is often underestimated. To explore health professionals' perceptions of PCa risk factors, a qualitative study with three focus groups (FG), with a total of twenty-one general practitioners and urologists, was conducted via videoconference between February and April 2023. Seven themes emerged, including general perceptions of PCa; PCa risk factors; nutritional impact; the role of physical activity; alcohol consumption and smoking; sexual activity and sexually transmitted diseases roles in PCa; and screening, diagnosis, and treatment methods. Despite agreeing that healthy lifestyles could promote better PCa outcomes and quality of life, participants did not specify any lifestyle factors that could promote or prevent this disease, posing challenges to lifestyle changes, particularly among older adults. Non-invasive screening methods, such as biomarkers and alternative treatments, are crucial for future research. This study underscores the need for further investigation into the correlation of lifestyle factors with PCa and highlights the necessity of health professionals in encouraging their patients to adopt healthier lifestyles, while offering important insights into awareness, prevention, and alternative screening, diagnosis, and treatment methods, which could help reduce false positives and treatment side effects.

Economic Evaluation of Expanding HPV Vaccination Programs for Boys: A Systematic Review

Background: Human papillomavirus is responsible for almost all cases of cervical and non-cervical cancers. Various treatments have been carried out, but they have not been effective enough in reducing the burden. The U.S. Food and Drug Administration has approved three HPV vaccines for use. Since its recommendation in 2006, HPV infections have significantly decreased by 88% among teen girls and 81% among young adult women. Additionally, research has indicated that HPV vaccine is cost-effective in preventing both cervical and non-cervical cancers. The primary target group of HPV vaccination is girls aged 9-14, but some countries are starting to expand their programs according to the WHO recommendation for secondary targets: boys and adult women. This study gave updated information regarding the expansion of HPV vaccination programs for boys. Objective: To systematically review the health economic studies to evaluate the cost-effectiveness of expanding HPV vaccination program for including boys to prevent HPV-related cancer. Method: An electronic literature search was performed on two databases (Pubmed and ScienceDirect) to identify studies published from 2013 to 2023 in English and Indonesian. Three search strategies were used, including the terms «economic evaluation», «HPV», and «boys». The screening and selection of the literature was performed according to the PRISMA statement. Results: A total of 306 articles were identified. Only 26 of them were deemed relevant. This research compiled studies from countries with varying economic levels on the expansion of vaccination programs in boys to prevent or reduce cervical, anogenital, and HNC cancers. All the studies used a modeling approach to estimate the number of cases averted and the health care costs. Sixteen studies found that it was cost-effective to expand HPV vaccination programs to include boys. The ICER values were found to be sensitive to the vaccine price, duration of protection, and vaccination coverage. Conclusion: Expanding HPV vaccination to boys is considered a cost-effective solution for preventing HPV-related cancers, based on studies conducted in many countries. It is recommended to conduct an economic evaluation to estimate the cost-effectiveness of HPV vaccination as a prevention method for HPV-related cancers in low and middle-income countries like Indonesia. To begin the study, it is suggested to expand the HPV vaccination target to boys with a lower-priced vaccine and increased vaccination coverage.

The epidemiology of lung cancer in Hungary based on the characteristics of patients diagnosed in 2018

Among malignant diseases, lung cancer has one of the highest mortality and incidence. Most epidemiological studies conclude that Hungary faces the most severe burden in association with this disease. However, for various reasons estimates and population-based studies show discrepancies. In this study, an intense data cleansing was performed on lung cancer cases that were reported to the Hungarian National Cancer Registry in 2018, and the major clinico-pathological parameters as well as survival characteristics were described. Our population-based figures were compared to the European estimates. As a result of our thorough revision, the corrected incidence of lung cancer has fallen below the number of cases that were reported to the Registry from 11,746 to 9,519. We also demonstrate that Hungary did not show the highest incidence and mortality in Europe, but it is still among the ones with the worst raking countries, with 92.9 and 50.6 age standardized rate per 100 thousand capita among males and females, respectively. Analysis of the annually reported case numbers revealed a gender-specific difference in incidence trends: while from 2001 to 2019 it slightly decreased among males, it increased among females. The most dominant subtype was adenocarcinoma, which was more frequent among female patients. Unfortunately, most of the newly diagnosed cases were in advanced stage; thus, 5 year overall survival was 14.8%. We anticipate that in the longer term, a decrease in incidence and improvement in survival rates may be expected as a result of the development of primary and secondary prevention programs in the country.

Visual pathology reports for improved collaboration at multidisciplinary head and neck tumor board.

Multidisciplinary tumor boards (TB) are the standard for discussing complex head and neck cancer cases. During TB, imaging and microscopic pathology is reviewed, but there is typically no visualization of the resected cancer. A pilot study was conducted to investigate the utility of visual pathology reports at weekly TB for 10 consecutive weeks. Faculty-level participants completed a pre-survey and post-survey to assess understanding of resected cancer specimens. Providers (n = 25) across seven medical specialties completed pre-survey and post-survey. Following intervention, providers reported significant improvement in understanding of anatomic orientation of the specimen and sites of margin sampling (mean 47.4-96.1, p < 0.001), ability to locate the site of a positive margin (mean 69.5-91.1, p < 0.001), and confidence in treatment plans created (mean 69.5-89.2, p < 0.001) with the addition of visual pathology reports. Visual pathology reports improve provider understanding of resected cancer specimens at multidisciplinary TB.

Predicting oral and esophageal cancers by one model in a Chinese prospective cohort study

ObjectiveOral and esophageal cancers are both upper gastrointestinal cancers that share a number of risk factors. However, most previous risk prediction models only focused on one of these two types of cancer. There is no single model that could predict both cancers simultaneously. Our objective was to develop a model specifically tailored for oral and esophageal cancers. MethodsFrom 1996 to 2007, a total of 431,460 subjects aged 20 and older without a history of cancer at baseline were included and were monitored for an average duration of 7.3 years in Taiwan, China. A total of 704 cases of oral and esophageal cancers were detected. We utilized both univariate and multivariate COX regression for screening predictors and constructing the model. We evaluated the goodness of fit of the model based on discriminatory accuracy, Harrell's C-index, and calibration. ResultsFinally, we developed a Cox regression model using the twelve most significant variables: age, gender, alcohol consumption, betel chewing, smoking status, history of oral ulceration, educational level, marital status, oropharynx status, family history of nasopharyngeal carcinoma, volume ratio of blood cell, and gamma-glutamyl transferase. The AUC (area under the curve) for the complete model was 0.82. Additionally, the C-index was 0.807 (with a 95 % confidence interval ranging from 0.789 to 0.824) and internal calibration results demonstrated that the model performed well. ConclusionsThis study identified the twelve most significant common risk factors for oral and esophageal cancers and developed a single prediction model that performs well for both types of cancer.

Docetaxel-induced severe neuropathy, a case of breast cancer with GTSP1 polymorphism.

Breast cancer, the most prevalent cancer among women, often requires chemotherapy with docetaxel being a key agent. However, docetaxel-inducted peripheral neuropathy (DIPN) can adversely impact patients' quality of life. This case discusses an unusual instance of severe DIPN leading to wheelchair dependence in a 35-years old woman undergoing neoadjuvant treatment for locally advanced breast cancer. Following anthracycline and cyclophosphamide cycles without neurological symptoms, docetaxel administration resulted in progressive neuropathy. Despite dose reduction, the patient developed severe paraesthesias, foot weakness, and eventually wheelchair dependence. Docetaxel's microtubule-stabilizing mechanism, vital for cell division, may disrupt axonal structures, causing sensory and motor neuropathy. While rare, severe motor neuropathy, leading to wheelchair dependence, poses a significant challenge. The frequency of DIPN varies, with docetaxel exhibiting lower neuropathy rates than other taxanes. Risk factors include age, diabetes mellitus, cumulative dose, and genetic polymorphisms in GSTP1 and ABCB1. In our case, despite the patient being young, fit and without diabetes, severe DIPN occured, suggesting a potential genetic predisposition. Genetic variations, such as GSTP1 polymorphisms have been associated with DIPN. Our patient carried GSTP1 (I1e105Val) mutations, emphasizing the need for further research to establish their role as risk factors. This case underscores the importance of recognizing severe DIPN, even in atypical patient profiles. Genetic factors, like GSTP1 polymorphisms, may contribute to DIPN risk. Large-scale studies are crucial to establishing the significance of these genetic variations in DIPN susceptibility.

Open, Laparoscopy-assisted, Robotic-assisted Distal Gastrectomy for Gastric Cancer: Evidence from Randomized Clinical Trials.

Gastric cancer (GC) is the fifth most common cancer and fourth leading cause of cancer-related deaths worldwide. Gastrectomy with lymphadenectomy is the standard treatment for both early and locally advanced GC. Laparoscopic surgery has been widely used for decades for the treatment of benign diseases, such as cholecystectomy and appendectomy. The use of laparoscopy-assisted distal gastrectomy (LADG) for the treatment of gastric cancer was first described by Kitano in 1994. Since then, the number of gastric cancer cases treated with LADG has gradually increased. Recently, robot-assisted gastrectomy (RDG) has also been introduced in the treatment of GC. To date, several randomized control trials (RCT) have been conducted to evaluate the safety, feasibility, and efficacy of LADG and RDG in comparison to open distal gastrectomy (ODG). However, the short- and long-term oncological outcomes of LADG and RDG remain controversial and have not been fully evaluated. To optimize GC treatment, especially gastrectomy with lymphadenectomy, it is necessary to understand the characteristics of each approach before gastric cancer treatment. This review summarizes the background, current status, and future perspectives of LADG and RDG in GC treatment using RCT data.

Tumor Budding: A Novel Prognostic Marker in Breast Carcinoma with Correlation of Histopathological and Immunohistochemical Parameters

Introduction Breast cancer is a highly heterogenous tumor with different subtypes showing varying prognosis. Tumor budding is an unfavorable histological feature of many epithelial cancers. The purpose of this study is to analyze the association between tumor bud density with various histological and immunohistochemical characteristics and to explore its prognostic role in breast carcinoma. Materials and Methods A retrospective analysis was performed on 100 patients of breast cancer diagnosed in our institute from January to December 2017. Hematoxylin and eosin (H&amp;E) stained slides from tumors and immunohistochemical slides were reviewed independently by two pathologists, and clinical data were acquired from computerized records. Patients on neoadjuvant chemotherapy were excluded from the study. Results The study comprised 100 patients of invasive breast carcinoma. The median age was 52 years, and 96% were invasive ductal carcinoma. The median follow-up was 34 months. High tumor bud density was substantially correlated with primary tumor staging (T3, T4; 73% [11/15] cases) and lymph node staging (N2, N3; 68% [13/19] cases) with p-values of 0.017 and 0.023, respectively. Systemic metastasis (85% [6/7] cases) was significantly associated with high tumor bud density (p =0.025) but lymphovascular invasion (LVI) and perineural invasion (PNI) were not significantly associated with tumor bud density (p = 0.762 and 0.862, respectively). Patients with N2 nodal stage had low event-free survival rate than N0/N1 nodal stage irrespective of tumor bud status. Grade 3 tumors with high tumor bud density had worse event-free survival than any other grades. There was no association of tumor bud density with tumor staging, necrosis, PNI, LVI, estrogen receptor (ER), progesterone receptor (PR) and Her2/neu, and event-free survival. Conclusion Strong relationships have been found between tumor bud density and poor prognostic variables such as primary tumor staging and lymph node staging. These results provide credence to the idea that tumor bud density can be an assessable prognostic feature that should be taken into account while reporting breast cancer cases. Tumor bud density evaluation has to be standardized nevertheless if it is to be widely adopted.

Evaluation of Pathology Resources for Cervical Cancer Detection Between 2018 & 2022: a Retrospective Study at Moi Teaching and Referral Hospital, Western Kenya.

Cervical cancer cases are increasing in sub-Saharan Africa, particularly in Kenya, exacerbated by inadequate histopathology resources, posing a significant barrier to timely diagnosis and treatment. There has been little research on the availability and evolution of histopathology resources for diagnosing cervical cancer over the years. This retrospective study evaluated this evolution at Moi Teaching and Referral Hospital in Kenya between 2018 and 2022. We used a mixed-methods approach. An in-depth interview was conducted with one of MTRH's pathology laboratory staff to assess the equipment, personnel, and quality control trends between 2018 and 2022. A thematic analysis was conducted in NVivo. We also retrospectively conducted a comprehensive inventory review of laboratory resources from 2018-2022 via purposive sampling. Microsoft Excel and Stata version 17 were utilized for descriptive statistical analysis. Turnaround time (TAT) was assessed against the UK's National Health Service Cervical Screening Program guidelines. The number of histopathology laboratory personnel at MTRH increased from 2018 to 2022, during which the facility included two pathologists, one records person, and one office administrator. Patient annual visits increased from approximately 350,000 in 2018 to approximately 500,000 in 2022. However, the histopathology personnel-to-population ratio decreased from 1.5 pathologists and 2.7 histo-technicians per 100,000 in 2018 to 1.4 pathologists and 1.8 histo-technicians per 100,000 in 2022. Despite this decrease, lab equipment, automatic tissue processors and embedding machines were added, and an average 14-day turnaround time was maintained for pathology reports. Despite a decreased personnel-to-patient ratio, the addition of crucial histopathology equipment mirrors the operational commitment of the Moi Teaching and Referral Hospital. The 14-day TAT is commendable, contributes to operational effectiveness and significantly contributes to timely detection. The hospital's dedication to upgrading its infrastructure underscores a proactive approach to addressing growing healthcare demands and improving patient outcomes, even with limited human resources. The decline in the personnel-to-patient ratio underscores challenges in diagnosis, emphasizing the need to address workforce and infrastructure gaps to improve patient care within similar low-resource settings.

Long-term outcomes of smoker and drinker with oesophageal squamous cell carcinoma after oesophagectomy: a large-scale propensity score matching analysis

BackgroundOesophageal squamous cell carcinoma (OSCC) poses a considerable health burden, particularly in regions such as East Asia. This study aims to investigate the long-term outcomes of OSCC patients who are...

Application of 18F-fluorodeoxyglucose positron emission tomography/computed tomography imaging in recurrent anastomotic tumors after surgery in digestive tract tumors.

This study was to investigate the application value of whole-body dynamic 18F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) imaging in recurrent anastomotic tumors of digestive tract after gastric and esophageal cancer surgery. Postoperative patients with gastric and esophageal cancer have a high risk of tumor recurrence, and traditional imaging methods have certain limitations in early detection of recurrent tumors. Whole-body dynamic 18F-FDG PET/CT imaging, due to its high sensitivity and specificity, can provide comprehensive information on tumor metabolic activity, which is expected to improve the early diagnosis rate of postoperative recurrent tumors, and provide an important reference for clinical treatment decision-making. To investigate the clinical value of whole-body dynamic 18F-FDG PET/CT imaging in differentiating anastomotic recurrence and inflammation after the operation of upper digestive tract tumors. A retrospective analysis was performed on 53 patients with upper digestive tract tumors after operation and systemic dynamic 18F-FDG PET/CT imaging indicating abnormal FDG uptake by anastomosis, including 29 cases of gastric cancer and 24 cases of esophageal cancer. According to the follow-up results of gastroscopy and other imaging examinations before and after PET/CT examination, the patients were divided into an anastomotic recurrence group and anastomotic inflammation group. Patlak multi-parameter analysis software was used to obtain the metabolic rate (MRFDG), volume of distribution maximum (DVmax) of anastomotic lesions, and MRmean and DVmean of normal liver tissue. The lesion/background ratio (LBR) was calculated by dividing the MRFDG and DVmax of the anastomotic lesion by the MRmean and DVmean of the normal liver tissue, respectively, to obtain LBR-MRFDG and LBR-DVmax. An independent sample t test was used for statistical analysis, and a receiver operating characteristic curve was used to analyze the differential diagnostic efficacy of each parameter for anastomotic recurrence and inflammation. The dynamic 18F-FDG PET/CT imaging parameters MRFDG, DVmax, LBR-MRFDG, and LBR-DVmax of postoperative anastomotic lesions in gastric cancer and esophageal cancer showed statistically significant differences between the recurrence group and the inflammatory group (P < 0.05). The parameter LBR-MRFDG showed good diagnostic efficacy in differentiating anastomotic inflammation from recurrent lesions. In the gastric cancer group, the area under the curve (AUC) value was 0.935 (0.778, 0.993) when the threshold was 1.83, and in the esophageal cancer group, the AUC value was 1. When 86 is the threshold, the AUC value is 0.927 (0.743, 0.993). Whole-body dynamic 18F-FDG PET/CT imaging can accurately differentiate the diagnosis of postoperative anastomotic recurrence and inflammation of gastric cancer and esophageal cancer and has the potential to be an effective monitoring method for patients with upper digestive tract tumors after surgical treatment.

Chia Seed (Salvia hispanica) Attenuates Chemically Induced Lung Carcinomas in Rats through Suppression of Proliferation and Angiogenesis.

In 2022, 2.5 million cases of lung cancer were diagnosed, resulting in 1.8 million deaths. These statistics have motivated us to introduce a new natural product which is feasible in lung cancer therapies. This comprehensive study was performed to study the effects of chia seed extracts (70% ethanol and petroleum ether) on lung cancer in vitro and in vivo models. The invitro cytotoxicity activity of the chia extracts was studied in lung cancer cell lines (A549 cells). After 48 h, chia alcohol and ether extracts showed more inhibitory influence (IC50, 16.08, and 14.8 µg/mL, respectively) on A549 cells compared to Dox (IC50, 13.6 µg/mL). In vivo, administration of chia alcohol and ether extracts (500 mg/kg/day, orally for 20 weeks) recovered 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK)-induced lung cancer, as a significant reduction in the lung cancer biomarkers, including the relative weight of the lung (20.0 and 13.33%), ICAM(31.73 and 15.66%), and c-MYC (80 and 96%) and MMP9(60 and 69%) expression genes, and improvement in these changes were observed by histopathological examinations of the lung tissues compared to the lung control. Chia seeds fought lung cancer via suppression of proliferation, angiogenesis, inflammation, and activation apoptosis. These activities may be attributed to the chemical composition of chia, which is identified by LC-Mass, such as caffeic acid, vanillic acid, kaempferol-3-O-glucuronide, and taxifolin. Finally, we can conclude that chia seeds have an anti-lung cancer effect with a good safety margin.

The expression of Ki-67 and clinicohistopathological characteristics of breast cancer in Southern Sumatra, Indonesia

Background: Breast cancer is the most frequently diagnosed cancer in the world, approximately 2.3 million new cases (11.7% of all cancer cases) per year in 2020. The Ki-67 expression is clinically used to classify molecular subtypes of breast cancer into luminal A and luminal B groups.Objectives: This study aimed to investigate relationships between clinicohistopathological characteristics (ages, histopathological types, histopathological grades, molecular subtypes) of breast carcinoma patients and the Ki-67 proliferation index at dr. Moh. Hoesin General Hospital (RSMH) Palembang in 2019–2021.Method: This study applied an observational analytic study with a cross-sectional approach. 521 samples were included in this study based on inclusion and exclusion criteria. The samples in this study included invasive breast carcinoma patients who underwent histopathological examination and immunohistochemistry (IHC), recorded in the medical records at RSMH Palembang for 2019–2021 period. Then a statistical analysis was performed by using the chi-square test, which was analysed in the SPSS application.Results: The correlation between Ki-67 proliferation index and histopathological grades was statistically significant (p=0.018). The Ki-67 proliferation index was also statistically significantly associated with the molecular subtypes (p=0.000). Neither age (p=0.315) nor histopathological types (p=0.417) were significantly associated with the Ki-67 proliferation index.Conclusion: The Ki-67 expression was significantly associated with histopathological value and molecular subtype in breast carcinoma patients at RSMH Palembang in 2019–2021. The Ki-67 expression was not associated with the clinic-histopathological characteristics of ages and histopathological types.

A surveillance study of cancer incidence and mortality among young adults in Costa Rica

There has been an increase in certain cancers among young adults (YA) aged 20-39, particularly in LatinAmerica. This is the first study to examine cancer incidence and mortality in YA in Costa Rica, focusing on sex-specific patterns. Invasive cancer cases (excluding non-melanoma skin cancer) in YA from 2006 to 2015 were obtained from the Costa Rican National Registry of Tumors. Utilising SEER∗Stat software, age-standardized incidence rates (IRs) and incidence rate ratios (IRRs) were calculated. Trends and annual percent changes (APCs) in IRs were estimated using the Joinpoint regression analysis program. Cancer deaths from 2000 to 2021 were obtained from the Costa Rican National Institute of Statistics and Census. Age-standardised mortality rates were calculated using STATA®17. YA comprised 10.7% of all invasive cancer cases diagnosed from 2006 to 2015. The age-standardized incidence rate (ASIR) of invasive cancer in YA was 50.9/100,000 person-years. The ASIR was twofold higher for females compared to males (IRR=2.03, 95% CI:1.94, 2.13). This difference increased with age, peaking in the 35-39-year age group (IRR=2.84, 95% CI:2.62, 3.10). Thyroid, breast, and cervical cancer were the most common in females. Testicular cancer was the most common in males. Leading causes of cancer-related deaths included cervical and breast cancer in females and stomach and brain/nervous system cancer in males. The study highlights sex-specific patterns in cancer incidence and mortality among YA in Costa Rica to increase understanding and improve cancer outcomes in this age group. This study was funded by the Intramural Research Program of the National Cancer Institute.

Adenoma Detection Rate after Positive Stool-Based Screening in a U.S. Population

Abstract Introduction and Objectives Over the past two decades, advancements in screening programs have led to a decrease in the incidence and mortality rates of colorectal cancer. The recommended benchmark for primary screening colonoscopy adenoma detection rate (ADR) is 25%. However, recent research supports higher ADR benchmarks following positive stool testing. Findings from a Dutch screening program have suggested higher ADRs in fecal immunochemical test positive patients with an inverse relationship with interval cancer development. Our study aims to assess ADRs in a U.S. patient population with positive stool screenings and investigate any correlation to occurrences of interval cancers. Materials and Methods Data from all positive stool-based screening participants who subsequently underwent colonoscopy at a tertiary care center between 2017 and 2021 were collected. A retrospective chart review was performed to determine the ADR and interval colon cancers. Results From a total of 120 patients (32 fecal occult blood test [FOBT] positive patients, 43 fecal immunochemical test [FIT] positive patients, 45 FIT-DNA-positive patients), the average ADR was 35%. Nonadvanced polyps were the most identified adenomas at 78.6%. No interval colorectal cancer cases were identified. There was a clear difference in ADR between stool-testing methods, with FIT-DNA showing higher ADRs than FIT and FOBT. Conclusion Endoscopists should recognize the importance of higher ADR targets in colonoscopies conducted after positive stool-based screening as a means to maintain high-quality colonoscopy standards.