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.

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<200μl/l (p=0.01) and (p=0.005), respectively. Conclusion: H. pylori infection, AG and acid-free stomach were common among HIV/AIDS patients, associated with an increased risk for GC and impaired absorption of micronutrients and some medicines.

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.

Otomycosis is a superficial, sub-acute or chronic infection of the external auditory canal, characterized by pruritis, inflammation, pain and itching commonly seen in tropical and subtropical regions of the world. Various host and environmental factors can predispose a person to otomycosis. However, a clinical presentation along with otoscopic observations of the patients shows fungal and bacterial infections. Proper identification of causative agents is necessary in order to prevent recurrences and complications such as hearing lost. The aim of our study was to determine the fungi and bacteria pathogens causing otomycosis and to derive association of risk factors with otomycosis of the clinically diagnosed patients. A descriptive cross-sectional study was conducted in the otorhinolaryngology department at the University Teaching hospital and the Central hospital over a period of one year. A total of 250 clinically diagnosed patients of otomycosis of age above one year were included in the study. We evaluated age and sex distribution, predisposing factors and complaints of the clinically diagnosed patients for otomycosis. All samples collected were transported and evaluated by both direct microscopic examination and culture method for bacteria and fungi examination, which were identified by standard procedures. Among 250 samples, 46.22% yielded fungal growth, 21.33% grew bacteria only and 32.44% showed mixed growth of fungi and bacteria. Major fungal isolates were Aspergillus (n=121) including 75 isolates of Aspergillus section Nigri, 20 isolates of Aspergillus section Flavi, 13 isolates of Aspergillus section Fumigati, 8 isolates of Aspergillus section Nudilante and 5 isolates of Aspergillus section Terrei. 48 isolates were identified as Candida species. Major bacterial isolates were Staphylococcus aureus (n=45) followed by Pseudomonas species (n=26), Klebsiella species (n=21), Escherichia coli (n=7) and Proteus species (n=3). This study highlights the highest isolation of Aspergillus section Nigri in cases of clinically diagnosed otomycosis patients at the two reference hospital in Yaoundé, Cameroon with high prevalence seen in patients using antibiotic eardrops as a mean of treatment from pains and itching.

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