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The aim of this study was to assess the diagnostic accuracy (DA) of a ColonView (CV) test in proximal versus distal colorectal adenoma (pCRA versus dCRA).The colorectal neoplasia (CRN) screening cohort included 5,090 individuals and 506/5,090 (10%) were eligible for the study. Finally, only 127/506 were included in the CRA analysis and hierarchical summary ROC (HSROC) curves were used to show the pooled overall DA of visually analyzed (VA) and automatically analyzed (AA) techniques in pCRA and dCRA detection.The overall specificity (Sp) of the AA technique for the pCRA and dCRA endpoint was 46% and 43%, respectively. The most sensitive AA test in pCRA patients showed 76% sensitivity (Se) versus 58% Se in dCRA patients. In the HSROC analysis, area under the curve (AUC) values were as follows: i) VA in pCRA: AUC=0.503, ii) AA in pCRA: AUC=0.560, iii) VA in dCRA: AUC=0.552 and iv) AA in dCRA: AUC=0.486. In Roccomp analysis, the statistically significant AUC values were available between VA and AA reading modes in pCRA (p=0.044) and in AA reading between pCRA and dCRA (p=0.024).As compared with the CRC endpoint, the DA value of the CV test is far inferior for the CRA endpoint, as determined by the AUC values.

The present study compared the accuracy of ColonView (CV) quick test in detecting proximal versus distal colorectal cancer (CRC). A traditional guaiac-based fecal occult blood test (gFOBT) (Hemoccult SENSA) was used as a reference.A cohort of 368 colonoscopy-referral patients were asked to collect 3 consecutive fecal samples, to be analyzed by both assays (CV, SENSA). Receiver operating characteristic (ROC) analysis was used to find the optimal cut-off values for both Hb and Hb/Hp of the CV test. Summary hierarchical ROC (HSROC) curves were used to visualize the pooled overall accuracy of visually analysed (VA) and automatically analyzed (AA) reading modes in proximal and distal CRC detection.The overall specificity (Sp) of the AA reading mode for the proximal CRC and distal CRC endpoint was 73% and 76%, respectively. For proximal CRC, the two most sensitive AA tests showed 90% sensitivity (Se), while for distal CRC, the two most sensitive AA tests showed 100% Se. In the HSROC analysis, the AUC values were as follows: i) VA in proximal CRC: 0.765, ii) AA in proximal CRC: 0.878, iii) VA in distal CRC: 0.955 and iv) AA in distal CRC: 0.961. In roccomp analysis, AUC values were significantly different in: VA vs. AA in proximal CRC p=0.009; VA in proximal vs. VA in distal CRC p0.0001; VA in proximal vs. AA in distal CRC p0.0001; AA in proximal vs. VA in distal CRC p=0.021; AA in proximal CRC vs. AA in distal CRC p=0.006.The applicability of the CV test (a new-generation FIT) in CRC screening was confirmed. The AA reading was superior to VA (or SENSA) in its diagnostic accuracy in detecting proximal CRC patients. Distal CRCs were more accurately detected than proximal CRCs by both reading modes.

BACKGROUND/AIM Prompted by the increasing demand of non-invasive diagnostic tools for screening of gastric cancer (GC) risk conditions, i.e., atrophic gastritis (AG) and Helicobacter pylori (Hp) infection, the GastroPanel® test (GP: biomarker panel of PGI, PGII, G-17, Hp IgG ELISA) that was developed in the early 2000's, was recently updated to a new-generation (unified GP) test version. This clinical validation study evaluated the diagnostic accuracy of the new-generation GP test in detection of AG and Hp among gastroscopy referral patients in a University Clinic. PATIENTS AND METHODS Altogether, 522 patients were enrolled among the patients referred for gastroscopy at the Gastro Center, Oulu University Hospital (OUH). All patients underwent gastroscopy with biopsies classified using the Updated Sydney System (USS), and blood sampling for GP testing. RESULTS Biopsy-confirmed AG was found in 10.2% (53/511) of the patients. The overall agreement between the GP and the USS classification was 92.4% (95%CI=90.0-94.6%), with the weighted kappa (κw) of 0.861 (95%CI=0.834-0.883). In ROC analysis using moderate/severe AG of the corpus (AGC2+) as the endpoint, AUC=0.952 (95%CI=0.891-1.000) and AUC=0.998 (95%CI=0.996-1.000) for PGI and PGI/PGII, respectively. Hp IgG antibody ELISA detected biopsy-confirmed Hp-infection with AUC=0.993 (95%CI=0.987-0.999). CONCLUSION The new generation GastroPanel® is a precise test for non-invasive diagnosis of atrophic gastritis and Hp-infection in dyspeptic patients referred for diagnostic gastroscopy.

AIMS Epigenetic alterations of genes involved in colorectal carcinogenesis are likely to be informative biomarkers for early detection. We assessed the methylation profile of a panel of seven colon cancer-related genes comparing normal colon, colorectal cancer (CRC) precursor lesions and cancer tissues from a Brazilian cohort. METHODS The cohort comprised 114 CRC patients, including 40 matched normal tissue, 47 patients with adenomas, 33 with serrated polyps and 8 with normal colonic biopsy. DNA methylation status of SEPT9, ALX4, NDRG4, BMP3, APC, p16 and MLH1 was determined by pyrosequencing and correlated with clinicopathological features. Sensitivity, specificity, positive predictive value and negative predictive value were calculated for all genes using cancer endpoint. RESULTS The most frequently methylated genes in cancer and in precancer lesions were SEPT9, ALX4, NDRG4, and BMP3, ranging from 55.3 to 95% of the samples. Overall, the frequency of methylation of these four genes in normal colonic tissue was significantly lower as compared to cancer or precursor lesions both in adenoma-carcinoma (p

BACKGROUND/AIM Diagnostic scores (DSs) for confirmation of acute renal colic (ARCO) have rarely been evaluated. PATIENTS AND METHODS A cohort of 1,333 patients with acute abdominal pain (AAP) were studied, including 59 patients with confirmed ARCO. The most significant diagnostic findings (in multivariate logistic regression analysis) were used to construct DS formulas for the diagnosis of ARCO. Meta-analytical techniques were used to detect the summary sensitivity and specificity estimates for each data set (clinical symptoms, signs and tests, as well as DS formulas). RESULTS In hierarchical summary receiver operating characteristic analysis (HSROC), the values for area under the curve (95% confidence interval) for i) clinical symptoms ii) signs and tests, and iii) DS were 0.650 (0.612-0.688), 0.724 (0.680-0.768) and 0.962 (0.940-0.984), respectively. In HSROC analysis of the area under the curve values, differences were significant between i) and iii) (p

BACKGROUND/AIM The diagnosis of acute small bowel obstruction (ASBO) may be difficult and the decision to operate is based on clinical findings. So far, the diagnostic scores (DSs) for ASBO detection have been rarely evaluated. PATIENTS AND METHODS A cohort of 1,333 acute abdominal pain (AAP) patients with 54 ASBO patients, were included in the study. The most significant diagnostic findings (in multivariate logistic regression analysis) were used to construct DS formulas for ASBO diagnosis with location of pain at diagnosis (LP+) and without location of pain at diagnosis (LP-). Meta-analytical techniques were used to calculate the summary sensitivity (Se) and specificity (Sp) estimates for each data sets (history-taking, findings, and DS formulas). RESULTS In SROC analysis, the AUC values for i) clinical history-taking, ii) diagnostic findings and tests, iii) DSLP- and iv) DSLP+ were as follows: i) AUC=0.638 (95%CI=0.600-0.676); ii) AUC=0.694 (95%CI=0.630-0.724), iii) AUC=0.962 (95%CI=0.940-0.986), and for iv) AUC=0.971 (95%CI=0.952-0.988). In roccomp analysis for the AUC values, the differences are significant as follows: between i) and ii) p=0.312; between i) and iii) p

Introduction: Helicobacter pylori infection is associated with gastrointestinal diseases including atrophic gastritis and gastric cancer. Epidemiologic studies have demonstrated associations between H. pylori infection andextra gastrointestinal organ involvements including coronary artery disease and peripherical artery disease, dyslipidemia, insulin resistance and hematologic disorders. We sought to evaluate the prevalence of H. pylori infection in patients suffering cardiovascular diseases attending the Yaounde Central Hospital. Materials and Methods: Patients suffering from various cardiovascular complications were recruited at the Yaounde Central Hospital, between January and May 2019. The clinical and socio-demographic information of the patients was recorded. Five ml of blood were collected aseptically for Pepsinogen I and II enzymes, gastrin17 hormone and IgG anti H. pylori anti-body. The test parameters were analyzed using a GastroSoft software application. The data was analyzed using Epi Info 7.0. All statistics were 95% CI. Ethical clearance was also obtained from the National Ethics Committee. The study was accepted by the authorities of the Yaounde CentralHospital. All patients signed an informed consent form. Results: A total of 62 subjects were recruited aged 30-75 years, (mean±SD 52.03 ± 12,78 years); 34(54,84%) females aged 30 to 75years (mean±SD 54,47 ± 13,47 years) and 28 (45,16%) males aged 30 to 65,(mean±SD 49,07± 11,44years). Female/male ratio was 1:2. H. pylori seropisitivity occurred in 58 (93,55%) of the subjects (IgG ≥30 EIU). H. pylori seropositivity was significantly associated with high blood pressure (RR=2.2 95%C.I 1.67 -2.96, p=0, 024). Significantly low Triglyceride concentrations were observed in H. pyloripositive(0,51±0,03g/l) compared to negative subjects (1,04 ± 0,50g/l), (p=0.03). A significant inverse correlation was observed between IgG levels and blood glucose levels (r= 0,4 p=0, 004). Conclussion: The study indicates that H. pylori infection is highly associated with various cardiovascular complications and disease risk factors.

Introduction: Helicobacter pylori (H. pylori) together with chronic atrophic gastritis have also been associated to extragastric manifestations including neurological, dermatological, ocular, cardiovascular, metabolic, allergic diseases and hematologic disorders. Several studies have associatedH. pylori with anaemia, iron deficiency and iron deficiency anemia. Little or no data on the association of H. pylori infection andanaemia exist in Cameroon. We therefore evaluated the prevalence H. pylori infection among patients with anaemia. Methodology: Blood samples were aseptically collected for the measurements Helicobacter pylori IgG antibodies, pepsinogene I et II levels, gastrine-17 in a total of 150 patients during the period February to July 2020. The blood samples required for the study were collected prospectively. Ethical clairance was obtained from the Centre Regional Ethics Committee for Human Sciences. An authorization of research was obtained from the authorities of General Hospital of Yaounde. All participants signed an informed consent form. Results: The GastroPanel® results showed that the prevalence of H. pyloriinfection was 90(60.00%).We observeda strong association of H. pylori with anaemia (OR 2.19, 95% CI 1.08–4.46; p=0,02). Conclusion: The prevalence of H. pylori infection is high in patients with anaemia and thus requires continuous monitoring of these patients.

Introduction: Helicobacter pylori infection is associated with an atrophic gastritis peptic and duodenal ulcer and gastric cancer. Patients with chronic renal diseases usually have dyspeptic symptoms. Several investigations have demonstrated an association between H. pylori infection and chronic kidney disease, although their results are still conflicting. We therefore aimed, to clarify the prevalence of H. pylori infection in patients receiving dialysis. Materials and Methods: Patients undergoing hemodialysis were recruited at the University Teaching Hospital of Yaounde, between January and May 2019. The clinical and socio-demographic information of the patients was recorded. 5 ml of blood were collected aseptically for Pepsinogen I and II enzymes, gastrin17 hormone and IgG anti H. pylori anti-body. The test parameters were analyzed using a GastroSoft software application. The data was analyzed using Epi Info 7.0. All statistics were 95% CI. Ethical clearance was also obtained from the National Ethics Committee. Authorization was obtained atthe University Teaching Hospital. Results: A total of 60 subjects were recruited aged 25-74 years, (mean±SD 52.03 ± 12,78) years;22(45.16%) females, aged 29 to 71years(mean±SD 47,45 ± 11.46) years and 38(54.84%) males aged 25 to 74 (mean±SD 56,47±12.25) years. Female / male ratio was 1.2. Overall, 26(43.33%) subjects were positive for H. pylori infection (IgG≥30EIU). The prevalence of atrophic gastritis obtained was (23.33%)(PG1< 30µg/l). The mean H. pylori IgG antibodies were significantly higher in obese than non obese subjects (F=3.59; p=0,01). A significant increase in the mean creatinine(P=0.008), andurea (P=0,05) was observed in H. pylori positive than negative ones. Conclusion: H. pylori infection is highly prevalent amongst patients with chronic renal failure and may thus require continuous follow up.

Introduction: Helicobacter pylori (H. pylori) is a microaerophilic gram-negative bacterium that colonizes the gastric mucosa and provokes inflammation and immune responses throughout life with liberation of diversecytotoxique substances dependent on host. Infection to H. pylori has been associated to a number of respiratory complications, including chronic obstructive pulmonary dieases, bronchectasis, asthma, tuberculosis and lung cancer. Epidemiological data on the association of H. pylori infection respiratory diseases are rare in Cameroon. We sought to evaluate the prevalence H. pylori infection among patient with respiratory diseases. Methodology: Blood samples were aseptically collected for the measurements Helicobacter pylori IgG antibodies, pepsinogene I et II levels, gastrine-17. The blood samples required for the study were collected prospectively. Ethical clairance was obtained from the Centre Regional Ethics Committee for Human Sciences. An authorization of research was obtained from the authorities of Jamot Hospital of Yaounde. All participants signed an informed consent form. Results: The GastroPanel® results showed that the prevalence of H. pylori infection was 42(46.67%). We observed an H. pylori seroprevalence of 75%, 41.9%, 50.0% and 33,33% amongst sujects with bronchitis, Tuberculosis, Asthma and pneumonia respectively.

Background: The human immunodeficiency virus (HIV) and Helicobacter pylori (H. pylori) are associated with significant chronic inflammation of the gastric mucosa. Gastric inflammation is a precursor to many gastrointestinal disorders including, peptic ulcer disease, atrophic gastritis (AG) and gastric cancer (GC). AG is usually accompanied by low hydrochloric acid (hypochlorhydria), low pepsinogens (PG) and high gastrin (G) levels and is the most significant risk condition for GC. Acid-free stomach is a risk factor for impaired drug absorption including anti-retroviral therapy and antibiotics. The role of H. pylori infection in HIV-infected subjects has been conflicting. Objectives: We assessed the prevalence of H. pylori infection, AG and acid-free stomach (hypochlorhydria) amongst HIV/AIDS subjects in Yaounde Cameroon. Methods: HIV/AIDS subjects were recruited during January-May 2018. Clinical and socio-demographic data of the subjects were recorded. An aliquot of 5 ml of blood was aseptically collected for analysis by GastroPanel® biomarker test for PGI, PGII, G-17 and H.pylori IgG antibodies. GastroPanel results were interpreted using the software application GastroSoft®. Statistical analyses were run by Epiinfo7.0. Ethical clearance was obtained from the National Ethics Committee. Results: A total of 84 subjects were recruited, aged between 17-63 years (mean 37.6 ± 8.9 years). H. pylori seropositivity (IgG ≥30 EIU) was detected in 68(81.0%) of the subjects. H. pylori seropositivity was closely associated with low CD4 counts (p=0.01). Altogether, 26(31.0%) of the subjects presented with AG of the corpus while, hypochlorhydria was detected in 32(38.1%) of the patients. AG and hypochlorhydria were associated with low CD4 counts

BACKGROUND/AIM Although acute appendicitis (AA) in elderly patients is different from AA in younger patients, the accuracy of diagnostic scores (DSs) in detecting AA is rarely considered. PATIENTS AND METHODS A cohort of 470 AAP (acute abdominal pain) patients older than 50 years, including 224 women (53.7%) and 193 men (46.3%), were included in the study. The most significant diagnostic predictors were used to construct DS formulas for AA diagnosis with (Tax+) and without body temperature (Tax-). Meta-analytical techniques were used to calculate the summary Se and Sp estimates for each data sets (history-taking, findings, and DS formulas). RESULTS In SROC analysis, the AUC values for i) symptoms ii) signs and tests iii) DSTax- and iv) DSTax+ were as follows: i) AUC=0.658 (95%CI=0.601-0.709); ii) AUC=0.751 (95%CI=0.701-0.800), iii) AUC=0.977 (95%CI=0.942-1.000), and for iv) AUC=0.980 (95%CI=0.956-1.000). Using roccomp analysis for these AUC values, the differences were significant as follows: between i) and ii) p=0.0358; between i) and iii) p

BACKGROUND/AIM Limited data exist on the expression pattern of TNFAIP3/A20, as assayed by immunohistochemistry (IHC), in breast cancer tissues. This study aimed to assess A20 expression pattern in breast cancer. MATERIALS AND METHODS The expression of A20 was analysed using IHC in 50 breast cancer cases retrieved from the Sharjah Breast Cancer Center at the University Hospital Sharjah, United Arab Emirates. Omics survival data were also used to analyse its association with survival in endocrine-treated subgroups. RESULTS A20 expression in breast cancer tissues was 'tumor-specific', and as compared to normal tissue areas, its expression was associated with both intensity and extent in early grade 1 (p

Background/aim The GastroPanel® test (Biohit Oyj) is interpreted by the GastroSoft® application distinguishing eight biomarker profiles, of which five profiles have a morphological equivalent in the Updated Sydney System (USS) classification of gastritis, and 3 others specify functional disorders of the stomach: 1) high acid output, 2) low acid output, and 3) effects of proton pump inhibitor (PPI) medication. This study evaluated the prevalence of these biomarker profiles in dyspeptic patients. Patients and methods A cross-sectional study was designed to assess the point prevalence of these biomarker profiles in a random sample of 500 subjects derived from our archives of GastroPanel® samples. Results Reflux symptoms were reported by 35.2% and use of PPI medication by 36.8% of the study subjects. Biomarker profile 2 (high acid output) was the second most common GastroPanel® profile in this cohort; 31.2%, second only (33.6%) to profile 1 (healthy stomach). Hp-infection was detected in 25.0% of the subjects. Profiles related to use of PPI (low acid output, PPI effect) were found in 7.4% of the cases. AG was uncommon, diagnosed in 14 patients only (2.8%). Conclusion These data are derived from the population with the highest frequency of dyspepsia, and the results might have widespread implications in diagnostic and screening practices.

Background/Aim: The diagnostic scores (DSs) for patients with non-specific abdominal pain (NSAP) have been rarely evaluated. Patients and Methods: In the NSAP study group there were 614 patients (268 females and 346 males) versus 719 patients in the non-NSAP group including 368 females and 351 males. The clinical symptoms (n=22), signs and tests (n=14) and laboratory analyses (n=3) were recorded in each patient. Meta-analytical techniques were used to detect the summary sensitivity (Se) and specificity (Sp) estimates for each data set (symptoms, signs and tests as well as DS models). Results: In receiver operating characteristic (ROC) analysis, the area under curve (AUC) values for i) symptoms ii) signs and tests and iii) DS were as following: i) AUC=0.542 (95% CI=0.512-0.572); ii) AUC=0.625 (95% CI=0.550-0.700), and iii) AUC=0.874 (95% CI=0.850-0.898). The differences between these AUC values are as following: between i and ii, p=0.097; between i and iii, p

Background/aim Helicobacter pylori (Hp) infection affects a substantial proportion of the world population and is a major risk factor of gastric cancer (GC). The caveats of common Hp-tests can be evaded by a serological biomarker test (GastroPanel®, Biohit Oyj, Helsinki), the most comprehensive Hp-test on the market. The clinical validation of Helicobacter pylori IgG ELISA of the new-generation GastroPanel® test is reported. The aim of the study is to validate the clinical performance of the Helicobacter pylori IgG ELISA test in diagnosis of biopsy-confirmed Hp-infection in gastroscopy referral patients. Patients and methods A cohort of 101 patients (mean age=50.1 years) referred for gastroscopy at the outpatient Department of Gastroenterology (SM Clinic, St. Petersburg) were examined by two test versions to validate the new-generation GastroPanel®. All patients were examined by gastroscopy and biopsies, which were stained with Giemsa for specific identification of Hp in the antrum (A) and corpus (C). Results Biopsy-confirmed Hp-infection was found in 64% of patients, most often confined to antrum. The overall agreement between Hp IgG ELISA and gastric biopsies in Hp-detection was 91% (95%CI=84.1-95.8%). Hp IgG ELISA diagnosed biopsy-confirmed Hp (A&C) with sensitivity (SE) of 92.3%, specificity (SP) of 88.6%, positive predictive value (PPV) of 93.8% and negative predictive value (NPV) of 86.1%, with AUC=0.904 (95%CI=0.842-0.967). In ROC analysis for Hp detection (A&C), Hp IgG ELISA shows AUC=0.978 (95%CI=0.956-1.000). Conclusion The Hp IgG ELISA test successfully concludes the clinical validation process of the new-generation GastroPanel® test, which retains the unrivalled diagnostic performance of all its four biomarkers, extensively documented for the first-generation test in different clinical settings.

Background/aim Noninvasive fecal occult blood tests (FOBTs) are recommended by current guidelines for colorectal cancer (CRC) screening. Our aim was to assess the diagnostic performance of traditional guaiac-based FOBTs (gFOBT) and new-generation immunochemical FOBTs (iFOBT) in CRC screening by carrying out a systematic review and meta-analysis. Patients and methods PubMed, Embase, Cochrane Library, and Web of Science were searched for eligible articles published before February 17, 2020. Three independent investigators conducted study assessment and data extraction. Diagnosis-related indicators for use of FOBTs in the detection of CRC (as the endpoint) in a screening setting were summarized, and further stratified by the type of FOBT (gFOBT vs. iFOBT). STATA software was used to conduct the meta-analysis. Pooled sensitivities and specificities were calculated using a random-effects model. Hierarchical summary receiver operating characteristic curves were plotted and area under the curves (AUC) were calculated. Results The electronic search identified 573 records after duplicates were removed, of which 75 full-text articles were assessed for eligibility. Finally, a total of 31 studies were eligible for the meta-analysis. In the ROC comparison test, there was a statistically significant difference in the performance of gFOBT and iFOBT tests, with AUC=0.77 (95% confidence intervaI=0.75-0.79) and AUC=0.87 (95% confidence intervaI=0.85-0.88), respectively (p=0.0017). In formal meta-regression, test brand did not prove to be a significant study-level covariate that would explain the observed heterogeneity between the studies. Conclusion New-generation iFOBTs were found to have a significantly higher diagnostic performance as compared with gFOBTs, advocating the use of only fecal immunochemical tests in all newly implemented CRC screening programs.

Background Insulin-like growth factor 1 receptor (IGF1R) activation triggers multiple signaling pathways involved in proliferation and anti-apoptosis in breast cancer (BC). Materials and methods Immunohistochemistry for IGF1R was performed on 50 BC cases; expression was assessed for staining intensity and localization pattern (mixed, membranous, and cytoplasmic) which was correlated to hormone receptor status. Results Of estrogen receptor-positive (ER+) cases, 97.2% were IGF1R+ (48.6% mixed, 43.2% membranous, and 5.4% cytoplasmic pattern) compared to ER- cases (38.5%, 7.7% and 30.8%, respectively) (p=0.003). In progesterone receptor-positive (PR+) cases, 97.2% were IGF1R+, (47.2%, 41.7% and 8.3%, respectively) compared to PR- ones (42.9%, 14.3% and 21.4%, respectively) (p=0.036). For human epidermal growth factor receptor 2-negative (HER2-) cases, 88.8% were IGF1R+ (44.4%, 8.3% and 36.1%, respectively). All HER2+ cases were IGF1R+ (71.4%, 7.1% and 21.4%, respectively) (p=0.015). In conclusion, hormone receptor-positive HER2- cases showed membranous and mixed IGF1R localization. However, hormone receptor-negative and HER2+ showed cytoplasmic or diminished IGF1R expression. Conclusion These luminal subtypes may benefit from targeted IGFR therapy in the future.

To estimate the prevalence of autoimmune atrophic gastritis (AAG) in the Russian Federation, a systematic screening of asymptomatic healthy adults by non-invasive biomarker testing was conducted. The aim was i) To test the validity of non-invasive serological screening for AAG; ii) to establish the prevalence of AAG among asymptomatic adults.Altogether, 1,283 asymptomatic, healthy adults (mean age: 38 years) were screened by GastroPanelGastroscopy and biopsies confirmed AG in 20 of the individuals. Parietal cell, intrinsic factor and thyroid peroxidase antibodies were present in five, one and eight individuals, respectively. AAG-associated co-morbidities (iron deficiency and pernicious anemia) were diagnosed in 10 out of 21. The final diagnosis of AAG was made in 15 out of 1,283 subjects (1.2%), of whom four were Helicobacter pylori-positive. When corrected for verification bias (non-attendees in the confirmatory tests; n=25), the adjusted prevalence of AAG was 2.6% (33/1,283).AAG prevalence of 2.6% is among the highest reported using non-invasive tests. GastroPanel

The host genetic factors that influence the natural history of human papillomavirus (HPV) infection in men are not well known. Our aim was to evaluate the role of human leukocyte antigen (HLA)-G polymorphism in oral and genital HPV infection in men. Altogether, 130 men from the Finnish Family HPV Study, with a 6-year follow-up, were included in the analyses. HLA-G alleles were tested by direct sequencing. Oral, urethral, and semen samples were collected and analyzed for 24 different HPV genotypes. Unconditional logistic regression was used to determine associations between HLA-G alleles and genotypes with HPV infection and its outcomes. Overall, eight different HLA-G alleles were identified with 15 different HLA-G genotype combinations. The most common HLA-G allele among the men was G*01:01:01 (86.2%, n = 112) followed by G*01:01:02 (36.2%, n = 47). Allele G*01:01:02 showed to be protective against any- and high-risk (HR) oral HPV (OR range of 0.20–0.24, 95% CI range of 0.06–0.85). Men having allele G*01:01:01 showed a reduced risk for incident (OR 0.30, 95% CI 0.11–0.84) and persistent (OR 0.24, 95% CI 0.08–0.69) oral infections. Allele G*01:01:03 was associated with increased risk for urethral HR-HPV infections (OR 4.94, 95% CI 1.34–18.27). Among self-reported demographic data, genotype G*01:01:01/01:01:03 was associated with an increased risk for oral warts (OR 8.00, 95% CI 1.23–51.89) and allele G*01:03:01 increased the risk of pollen and/or animal allergy (OR 13.59, 95% CI 1.57–117.25). To conclude, HLA-G polymorphism in men largely impacts the outcome of an oral HPV infection and seems to associate with self-reported allergies. Supplementary Information The online version contains supplementary material available at 10.1007/s10096-021-04362-8.

Background/aim The present study compared the accuracy of visually analyzed (VA) and automatically analyzed (AA) ColonView (CV) quick test; a new-generation fecal immunochemical test (FIT) for hemoglobin (Hb) and hemoglobin/haptoglobin (Hb/Hp) (Biohit Oyj, Helsinki, Finland) in subjects participating in colorectal neoplasia (CRN) detection in Brazil. A traditional guaiac-based fecal occult blood test (gFOBT) test (HemoccultSENSA) was used as a reference. Patients and methods A cohort of 509 colonoscopy-referral patients were asked to collect three consecutive fecal samples, to be analyzed by both CV and SENSA. Results In ROC analysis for the AA reading, the optimal cut-off value for CV Hb was ≥8.0912 and that for CV Hb/Hp was ≥1.8983. With these cut-offs, the sensitivity (Se), specificity (Sp), and efficiency of CV AA in detecting colorectal adenoma (CRA) were: 64.2%/78.6%, 53.4%/35.3%, and 58.6%/56.5%, for Hb and Hb/Hp, respectively. In the HSROC analysis, the AUC values for i) VA and ii) AA modes were as follows: i) AUC=0.551 (95%CI=0.500-0.602), ii) AUC=0.606 (95%CI=0.550-0.662). The difference between these AUC values was statistically significant (p=0.0160). Conclusion The present study confirms the previous results on the applicability of the ColonView quick test in CRN screening. Of the two optional reading modes, the AA reading showed significantly better diagnostic accuracy as compared to the VA reading (or SENSA), in detecting the CRA endpoint in colonoscopy-referral patients.

Prompted by the increasing demand of non-invasive diagnostic tools for screening of gastric cancer (GC) risk conditions, i.e., atrophic gastritis (AG) and Helicobacter pylori (Hp) infection, the GastroPanelAltogether, 522 patients were enrolled among the patients referred for gastroscopy at the Gastro Center, Oulu University Hospital (OUH). All patients underwent gastroscopy with biopsies classified using the Updated Sydney System (USS), and blood sampling for GP testing.Biopsy-confirmed AG was found in 10.2% (53/511) of the patients. The overall agreement between the GP and the USS classification was 92.4% (95%CI=90.0-94.6%), with the weighted kappa (κThe new generation GastroPanel

Background/aim The present study compared the accuracy of visually analyzed (VA) and automatically analyzed (AA) ColonView (CV) quick test; a new-generation immunochemical test (FIT) for Hb and Hb/Hp (Biohit Oyj, Helsinki, Finland) in subjects participating in colorectal cancer (CRC) detection in Brazil. A traditional gFOBT test (HemoccultSENSA) was used as a reference. Patients and methods A cohort of 368 colonoscopy-referral patients were asked to collect 3 consecutive fecal samples, to be analysed by both assays (CV, SENSA). Results In receiver operating characteristic (ROC) analysis for the AA reading, the optimal cut-off value for CV Hb AA (test AA 3) was ≥117 and that for CV Hb/Hp AA (test AA 4) was ≥48. In the hierarchical summary receiver operating characteristic (HSROC) analysis for pooled accuracy of CV with AA and VA reading, the AUC values for i) VA and ii) AA were as follows: i) AUC=0.859 (95%CI=0.839-0.879), ii) AUC=0.931 (95%CI=0.920-0.942). The difference between these AUC values (Roccomp analysis) was statistically significant (p=0.0024). Conclusion The present study confirms the previous studies on the applicability of the ColonView quick test (a new-generation FIT) in CRC screening.

BACKGROUND The prognostic value of vascular endothelial growth factor-A (VEGFA) and epithelial cadherin (E-cadherin) expression in patients with metastatic colorectal cancer (mCRC) is controversial. MATERIALS AND METHODS In this prospective study, patients diagnosed with mCRC between August 1, 1998, and August 30, 2003, at the Turku University Hospital, Finland were included. Expression of E-cadherin (membranous and cytoplasmic pattern) and VEGFA in tumour samples was assessed by immunohistochemistry. Tumours were classified as E-cadherin expressers if they demonstrated moderate or strong cytoplasmic or membranous staining, while those positive for VEGFA expression showed a moderate or strong cytoplasmic staining. Of particular interest was the association between membranous or cytoplasmic expression of E-cadherin and VEGFA. The value of strong VEGF-A staining and membranous or cytoplasmic expression of E-cadherin as a predictor of disease outcome over a 6-year period was another point of interest in this study. RESULTS Of the 67 patients with mCRC, 43 (64%) had tumours positive for cytoplasmic E-cadherin, while in 24 cases (36%), E-cadherin expression was membranous. Strong VEGFA staining was present in half of the cases (n=36, 54% of all 67 mCRC cases). VEGFA expression was significantly correlated with cytoplasmic E-cadherin expression in that 28/36 cases of VEGFA-positive tumours were also positive for cytoplasmic E-cadherin (p=0.012). In addition, among the patients with intense VEGFA expression (n=36), those who had positive cytoplasmic E-cadherin in their tumours had a lower response-rate to first-line therapy with irinotecan, fluorouracil and leucovorin regimen: 5 out of 36 (14%) were chemosensitive. This is in contrast to the patients with VEGFA-positive tumours and membranous E-cadherin (8/36, 22% chemosensitive (p=0.004). The former group also had more ominous prognosis (p

Background/aim Several clinical conditions seriously hamper the diagnostic accuracy of the commonly used tests for Helicobacter pylori (Hp), 13C-urea breath test (UBT) and stool antigen test (SAT). The present communication is a critical review of the potential limitations of UBT and SAT, and describes the approach on how these can be avoided. Drawbacks of the Hp tests: False-negative results are most often due to low bacterial load in the stomach due to: i) use of proton pump inhibitor medication; ii) use of antibiotics; iii) presence of atrophic gastritis and hypoacid stomach; iv); bleeding peptic ulcer; v) gastric cancer (GC) and vi) mucosal-associated lymphatic tissue lymphoma. The UBT also gives false-positive results when urease-producing bacterial species, other than Hp colonize an acid-free stomach. Importantly, neither UBT nor SAT are capable of diagnosing atrophic gastritis, thus missing the patients at highest risk for GC. GastroPanel® (Biohit Oyj, Finland) circumvents these shortcomings with a serological test consisting of a panel of stomach-specific biomarkers: pepsinogen I, pepsinogen II, gastrin-17 and Hp antibodies. GastroPanel® is a tool for non-invasive examination of i) dyspeptic patients for exclusion or diagnosis of Hp or atrophic gastritis, also disclosing the status of gastric acid output; ii) for screening of asymptomatic individuals at risk of GC; and iii) for comprehensive diagnosis of Hp infection. GastroSoft® application integrates the biomarker profile with the patient's medical information, accurately classifying the biomarker profiles into eight diagnostic categories. Conclusion Given that Hp is the single most important risk factor of GC, the non-invasive diagnosis and screening of Hp should be based on more accurate and more comprehensive testing than UBT or SAT alone. The GastroPanel® is such test, being completely devoid of the known serious shortcomings of UBT and SAT.

Background: The association of human papillomavirus (HPV) with head and neck squamous cell carcinoma (HNSCC) was first described in 1982–1983 by the authors of this review. Prompted by this discovery 35 years ago, an entirely new field of HPV research has emerged, resulting in a paradigm shift from smoking and alcohol as the only etiological factors to confirmation of HNSCC as an important group of HPV-related human malignancies. Summary: In this review, the authors first describe the scope (i.e., HNSCC) by the anatomic sites of the tumors. Their important site-specific differences in epidemiology are emphasized, and the misconceptions caused by the adopted practice of pooling all tumors from these divergent anatomic sites as a single entity (HNSCC) are pinpointed. The convincing evidence of the established risk factors (smoking and alcohol) is briefly addressed, before entering in the discussion on the causal role of HPV in HNSCC pathogenesis. The global HPV prevalence in different subsets of HNSCC is summarized using the data extracted from all meta-analyses published since 2010. Of all HNSCC subsets, oropharyngeal SCC has an HPV profile distinct form all the other subsets, and the possible mechanisms explaining this intimate association with HPV are discussed. Key Messages: Recent global trends show a constant increase in HNSCC rates particularly among younger age groups. The evidence on cigarette smoking and alcohol consumption as the prime risk factors of HNSCC is overwhelming. During the past 35 years, however, increasing evidence has accumulated implicating an important causal role of HPV in HNSCC. These data have important clinical implications, HPV detection and tailored treatment strategies for HPV-positive HNSCCs currently being an integral part of the oncological management practices of HNSCC.

Background Until recently, palliative care (PC) resources in Finland have been sparse. To meet the increasing need for PC an end-of-life (EOL) care project has been ongoing in South Western Finland since 2012, and in 2015, a weekday palliative outpatient clinic was established in Turku University Hospital (TUH). The aim of this study was to explore the effect of the project and the PC clinic on the management practices of EOL cancer patients attending the Emergency Department (ED) of TUH from 2013 to 2016. Methods The medical records of all cancer patients (ICD-10 codes C00–97) admitted to the ED of TUH between August 1–December 31, in 2013 and 2016, were analyzed: n = 529, n = 432 respectively (2013 and 2016). The analysis focused on those patients in EOL care; n = 77, n = 63, respectively. The late palliative patients were defined by PC decision, thus termination of life-prolonging cancer-specific treatments. The EOL patients were in the imminently dying phase of their illness. The site of referral after an ED visit was also verified together with the documentation on advance care plans (ACP), and the impact of palliative outpatient visits. Results In 2016, the number of late palliative and EOL patients admitted to the ED has shown a tendency to decrease. The quality of the documentation for treatment goals, do-not-resuscitate (DNR) orders, living wills and connections to primary care providers has improved since 2013. Prior visits to palliative outpatient clinic correlated well with the more comprehensive ACP information: i) DNR order (p = 0.0001); ii) connection to primary care (p = 0.003); iii) documented ICD-10 code Z51.5 (p = 0.0001). Conclusions Even modest investments in resources for PC can induce an objective change in the allocation of health care resources, and improve the ACP for the cancer patients at their EOL. A visit to a palliative outpatient clinic may offer one approach for improving the quality and completion of ACP documentation.

Background/Aim: The diagnostic accuracy of history-taking, clinical signs and tests and diagnostic scores (DSs) for patients with non-organic dyspepsia (NOD) have been rarely evaluated. Patients and Methods: A cohort of 1333 patients presenting with acute abdominal pain (AAP) were studied, including 50 patients with confirmed NOD. The most significant diagnostic variables (in multivariate logistic regression analysis) were used to construct six different DS models and their diagnostic accuracy was compared with clinical symptoms and signs and tests. Meta-analytical techniques were used to detect the summary sensitivity (Se) and specificity (Sp) estimates for each data set (symptoms, signs and tests as well as DS models). Results: In hierarchical summary receiver operating characteristic (HSROC) analysis, the area under curve (AUC) values for i) symptoms ii) signs and tests iii) DS were as follows: i) AUC=0.608 [95% confidence interval (CI)=0.550-0.666]; ii) AUC=0.621 (95% CI=0.570-0.672) and iii) AUC=0.877 (95% CI=0.835-0.919). The differences between these AUC values (roccomp analysis) are as follows: between i) and ii) p=0.715; between i) and iii) p

Backround Human leukocyte antigen (HLA)-G may have an important role in the natural history of human papillomavirus (HPV) infection. Our aim was to evaluate the role of HLA-G in the outcome of genital and oral HPV infections in women. Methods Analyses included 306 women from the Finnish Family HPV-study and were followed-up for six years. Genital and oral samples were tested for 24 different HPV types with multiplex HPV genotyping. HLA-G alleles were determined through direct DNA-sequencing. Unconditional logistic regression was used to determine the associations between HLA-G genotypes and HPV infection outcomes. Results Ten HLA-G alleles were identified. Most common HLA-G genotypes were the wild type G*01:01:01/01:01:01 (31.3%) followed by G*01:01:01/01:01:02 (26.8%). G*01:01:01/01:01:01 genotype was associated with increased risk of oral HPV infections by any HPV type or single-type with OR = 1.86 (95% CI 1.14–3.04, P = 0.01) and 2.22 (95% CI 1.14–3.71, P = 0.02), respectively. G*04:01+ allele and the G*01:01:01/01:04:01 genotype both protected from any and single oral HPV infections; OR = 0.46 (95% CI 0.23–0.89, P = 0.02) and 0.53 (95% CI 0.23–0.97, P = 0.03), respectively. G*01:01:02/01:04:01 genotype increased significantly the risk of infertility and its treatments, with respective OR = 5.06 (95% CI 1.22–21.02, P = 0.03) and OR = 9.07 (95% CI 1.22–39.50, P = 0.03). Both HLA-G alleles and genotypes showed several significant associations with the outcomes of oral HPV infections, but none of them had any impact on the outcomes of genital HPV infections in these women. Conclusions The host HLA-G genotypes appear to impact the outcomes of oral HPV infections in women but have little if any effect on genital HPV status or infection outcomes.