Medical Specialties Commons^™

Neonatal Admissions And Mortality: A Statistical Adjustment Approach Using Birthweight-Specific Curves To Address Bias Due To Underreporting In 65 Hospitals In Four African Countries, Lucas Malla, Siu Wong, Samuel Ngwala, Evelyn Zimba, Msandeni Chiume, Norman Lufesi, Kondwani Kawaza, Honorati Masanja, Josephine Shabani, William Macharia

Paediatrics and Child Health, East Africa

Background Underreporting of neonatal admissions and deaths – particularly among <  1000 g newborns – compromises the plausibility of in-patient neonatal mortality rate (iNMR) estimates. This limits progress tracking, since 2.3 million neonatal deaths occur annually, and 65 countries are projected to miss the Sustainable Development Goal (SDG) 3.2 target of fewer than 12 deaths per 1000 live births by 2030. Reliable iNMR estimates are essential for national and hospital-level monitoring. This study assessed birthweight-specific adjustment curves developed using simulated data, and extended the approach to routine data from 172,809 neonatal admissions across four African countries in the NEST360 network.

Methods Simulated data were generated using birthweight intervals of 500 g from 500 to 5000 g, with 1000 values per category representing 1000 hospitals. Admissions were drawn from a negative binomial distribution and mortality rates from a beta distribution based on published birthweight-specific iNMRs. Adjustment functions were developed using data from 500 hospitals without underreporting and tested on 500 with induced underreporting. This approach was then extended to real data from 65 NEST360 partnering hospitals. The adjustment functions were derived from 26 hospitals with plausible reporting (iNMR ≥ 700 per …

Unlocking The Potential Of Sub-Saharan Africa In Globalized Cancer Clinical Trials: A Perspective From The 2024 Aortic-Asco Stakeholder Meeting, Abiola Ibraheem, Adedayo Joseph, Miriam Mutebi, Mansoor Saleh, Sitna Mwanzi, Olusegun Alatise

General Surgery, East Africa

Sub-Saharan Africa (SSA) remains significantly underrepresented in global cancer clinical trials, despite having the largest population of individuals of African descent, an essential demographic for ensuring diversity in clinical research. This study, developed from the 2024 African Organization for Research and Training in Cancer (AORTIC)-ASCO stakeholder meeting, addresses the critical need to involve SSA in cancer trials to improve global trial diversity and patient outcomes. Although globalization of trials has shifted research sites to regions like Eastern Europe and Asia, < 1% occur in Africa. This report highlights emerging solutions such as regional alliances, decentralized trial models, capacity-building initiatives, and public-private partnerships. The role of AORTIC and its Clinical Trial Special Interest Group in advancing training, infrastructure development, and international collaboration is discussed, with notable clinical trial networks, such as HypoAfrica, ARETTA, African Research Group for Oncology, and regional consortia, illustrating growing momentum and capability. This study advocates for a coordinated strategy to integrate SSA into global trials, ensuring more inclusive, effective, and equitable cancer treatment outcomes.

Social Relationships, Mental Health, And Stigma: A Qualitative Study Of Social Networks And Hiv Disclosure In Western Kenya, Sarah Obatsa, Adel Mburia-Mwalili, Salvador Jauregui, Karla Wagner, Lukoye Atwoli, Francesca Odhiambo, Jayne Lewis-Kulzer, Suzanne Goodrich, Kara Wools-Kaloustian, Jennifer Syvertsen

Internal Medicine, East Africa

The disclosure of one’s HIV-positive status is a personal decision that can play an important role in engagement in HIV treatment and care. Social network approaches situate individuals within broader webs of social connections that influence health and wellbeing and thus hold the potential to elucidate key social factors shaping the process of disclosure. As part of a larger clinical study examining how substance use and mental health shape HIV outcomes, we recruited 61 individuals newly diagnosed with HIV at two clinics in Western Kenya to participate in an egocentric social networks study. We conducted a survey that generated a …

Hydroxyurea Interferes With Point-Of-Care Creatinine Testing In Children With Sickle Cell Anemia, Ruth Namazzi, Robert Opoka, Charles Ssuuna, Michael Goings, Kathryn Mcelhinney, Dibyadyuti Datta, Russell Ware, Chandy John, Andrea Conroy

Paediatrics and Child Health, East Africa

Objective To evaluate the performance of the point-of-care i-STAT device for creatinine measurement in Ugandan children with sickle cell anemia (SCA), and to determine the clinical impact of hydroxyurea-associated assay interference.

Results description This secondary analysis was nested within a randomized clinical trial involving 248 Ugandan children with SCA. The mean age at enrollment was 32 months, and 115/248 (46.2%) initiated hydroxyurea during 12 months of follow-up as part of routine clinical care. At enrollment, creatinine values measured by i-STAT and reference laboratory testing were clinically comparable. At follow-up, children receiving hydroxyurea had significantly higher creatinine values measured by iSTAT …

Paracrine Signals From Hiv-1-Infected Immune Cells Reprogram Cervical Cancer Pathways, Charles Olwal, Ujjwal Rathore, Sara Makanani, Prashant Kaushal, Immy Ashley, Manisha Ummadi, Vincent Appiah, Alexandra Lindsey Zune, Sophie Blanc, Elkanah Orang'o

Obstetrics and Gynaecology, East Africa

No abstract provided.

Ambulatory Blood Pressure Monitoring Phenotypes And Circadian Blood Pressure Patterns Among Adults Referred For Diagnostic Evaluation At Aga Khan University Hospital, Nairobi, Kenya: A Retrospective Cross-Sectional Study, Nadeem Kassam, Mzee Ngunga, James Orwa, Alisa Bhojani, Mohamed Varwani, Swaffiya Salim, Yvonne Oketch, Salim Surani, Anthony Ochola, Barbara Karau, Jeilan Mohamed, Etienne Amendezo

Internal Medicine, East Africa

Introduction: hypertension represents the primary modifiable risk factor for cardiovascular disease and poses a public health challenge in sub-Saharan regions, with Kenya experiencing particularly low detection and control rates. Traditional office-based blood pressure measurements often fail to detect key phenotypes, such as white-coat and masked hypertension. Ambulatory Blood Pressure Monitoring (ABPM) offers a comprehensive 24-hour profile that excludes white-coat hypertension and allows for the evaluation of circadian patterns, including nocturnal hypertension and non-dipping status, both of which are recognized as high-risk phenotypes strongly linked to adverse cardiovascular events. This study evaluated ABPM data from Aga Khan University Hospital, Nairobi …

Development And Validation Of The Lifetime Sense Of Safety Scale In Kenyan Adults, Karen Blackmon, Anne Nyambura, Anne Gitere, Levi Muyela, Catherine Onyancha, Kendi Muchungi, Catherine Ajalo, Litha Musili, Rachel Maina, Edna Bosire, Lukoye Atwoli, Zul Merali, Chinedu Momoh

Brain and Mind Institute

Background. Safety supports psychological wellbeing and potentially shapes brain aging yet existing scales overlook cumulative lifespan safety experiences.

Methods. To address this gap, we developed and validated the Lifetime Sense of Safety (LSS) scale in Kenyan adults. The LSS uses visual analog scaling with a red-to-green color gradient to retrospectively rate felt safety across life stages and settings. We evaluated scale psychometrics and associations with social determinants of health and indicators of brain health.

Results. The LSS shows adequate internal consistency and test-retest reliability, with two distinct but correlated factors representing childhood and adulthood safety. Women and …

Contextual Variability In Under-Diagnosed Cardiometabolic Disease And Cognitive Vulnerability Among Populations At High Risk For Alzheimer's Disease And Related Dementias, Nwanyieze Jiakponnah, Joseph Curran, Tamlyn Watermeyer, Jasmit Shah, Litha Musili, Stanely Onyango, Benard Aliwa, Zul Merali, Karen Blackmon, Chinedu Momoh

Brain and Mind Institute

Underdiagnosis of cardiometabolic risk factors (CMRFs) may represent an unrecognised biological pathway contributing to dementia risk; yet remains poorly characterised in African and African diaspora populations. We quantified the prevalence and determinants of underdiagnosed hypertension and abnormal glycaemia across four cohorts comprising up to 7000 adults aged ≥40 years from Nigeria, Kenya, and The United States: Indianapolis, and North Texas. Underdiagnosis was defined as absence of self-reported diagnosis despite elevated systolic blood pressure ( ≥130 mmHg) or fasting blood glucose ( ≥100 mg/dL). Cohort-stratified analyses examined demographic, socioeconomic, cognitive, Alzheimer’s genetic, and blood-based biomarker correlates. Underdiagnosis was pervasive in African …

Adverse Childhood Experiences Among Kenyan Adolescents: Psychometric Properties, Prevalence Rates And Correlates, Tom Osborn, Rosine Baseke, Faith Kamau, Winnan Munyasa, Christine Wasanga, Maureen Ngesa, Victoria Mutiso, Moses Nyongesa, Jasmit Shah, Zul Merali

Brain and Mind Institute

Background: Adverse Childhood Experiences (ACEs) have been consistently linked to poor mental health outcomes, yet research on their impact in low- and middle-income countries (LMICs) settings of Africa, remains relatively unexplored. In Kenya, where childhood adversity is widespread, there is a critical need to examine the validity of ACE measures and their associations with mental ill health. This study aimed to validate the Adverse Childhood Experiences questionnaire (ACE-10) in a Kenyan adolescent sample and assess its associations with symptoms of depression and anxiety, bullying, and sociodemographic factors.

Methods: Data was collected from N = 2,842 adolescents and young …

Family Planning Exemplar Country Selection Methodology: Time Lag And Trends Analysis, Zahid Memon, Abeer Mian, Ira Martopullo, Narjis Hussain, Zeba Sathar, Ali Mohammad Mir, Michael Mbizvo, Marleen Temmerman, Jen Drake, Zulfiqar Bhutta

Centre of Excellence in Women and Child Health

Introduction While many countries achieved notable gains in contraceptive use levels after the 1994 International Conference on Population and Development which redefined family planning (FP) as a human right, there was a long period of 15 years when contraceptive use levels did not receive due attention. It was only later that its subsequent inclusion in the Sustainable Development Goals and the 2012 London Summit on FP renewed global commitment and a focus towards FP. This paper aims to select countries that identify as ‘exemplar’ low-middle-income countries that have achieved exceptional progress in FP. Examining these outliers can uncover actionable drivers …

An Aggressive Presentation Of Anti-Melanoma Differentiation-Associated Gene 5 (Mda-5)-Positive Dermatomyositis With Rapidly Progressive Interstitial Lung Disease: A Case Report, Zamanali Khakhar, Shreedhi Patel, Rajiv Patel, Soraiya Manji, Fredrick Otieno, Sayed Karar

Internal Medicine, East Africa

Anti-melanoma differentiation-associated gene 5 (MDA-5) dermatomyositis is an uncommon condition that is frequently complicated by rapidly progressive interstitial lung disease (RP-ILD), resulting in a poor prognosis. Due to its aggressive course, management is often challenging and requires timely interventions to improve outcomes. This case of a female patient with anti-MDA-5-positive DM and RP-ILD aims to document this unique and uncommon condition, its aggressive clinical course, associated complications, diagnostic challenges, and management considerations.

Left Bundle Branch Area Pacing Outcomes From An African Registry: Short-Term Findings From The Macop Study, Willy Mucyo, Marcus Ngantcha, Mzee Ngunga, Miriam Msunza, Justin Ragadu, Klindheer Rampersad, Jeilan Mohamed, Brian Vezi

Internal Medicine, East Africa

Background

Objective

Methods

Results

Government Health Care Worker Training Needs For Intestinal Schistosomiasis Morbidity Management, Phyllis Isaiah, Betty Nabatte, Lauren Wilburn, John Oryema, Noah Ukumu, Morris Okumu, Juma Nabhonge, Hilda Kyarisiima, Prudence Beinamaryo, Christopher Opio

Internal Medicine, East Africa

Background Schistosomiasis causes substantial chronic morbidity in sub-Saharan Africa, yet case definitions, clinical management guidance, and health worker training for schistosomiasis-related morbidity remain limited.

Methods We conducted a qualitative needs assessment for schistosomiasis morbidity management. Workshops were held over one day in each of Pakwach, Buliisa, and Mayuge Districts in Uganda in October 2024. 105 government health workers participated including clinicians, nurses, laboratory technicians, sonographers, and district health managers from health facilities at different levels of care. The workshops comprised six structured sessions: presentations on schistosomiasis burden in Uganda and the SchistoTrack cohort, a clinical case report by an expert …

Assessing Aflatoxin Knowledge, Perceptions, And Related Practices, In A Rural Coastal Community: A Population-Based Cross-Sectional Survey, Rosebella Iseme, Joseph Abuodha, Anthony Ngugi, Innocent Abayo, Mansoor Saleh

Population Health, East Africa

Background

Aflatoxin contamination is a significant yet under-addressed food safety challenge in low-resource settings, driven by a complex interplay of environmental, agricultural, and socio-economic factors. Limited access to agricultural inputs, inadequate post-harvest handling and storage, and weak regulatory enforcement alongside food scarcity and climate change heighten the risk of contamination and exposure. Human exposure is associated with serious health consequences, including hepatocellular carcinoma, immune suppression, and childhood stunting. Although aflatoxin is increasingly recognized as a global food safety concern, little is known about community-level knowledge, risk perceptions, and preventive practices. This study examined household heads’ awareness, perceptions, and behaviours related …

Feasibility And Acceptability Of A Mobile App And Wearable Device For Collecting Mental Health Survey And Passively Sensed Data Among Health Care Workers In Kenya: Mixed Methods Pilot Study, Linda Khakali, Andrew Aballa, Dorcas G. Mwigereri, Willie Njoroge, Rachel Maina, Amos Bunde, Peris Musitia, Moses Nyongesa, James Orwa, Jasmit Shah, Anthony Ngugi, Lukoye Atwoli, Amina Abubakar, Zul Merali

Brain and Mind Institute

Background: Mobile apps and wearable devices may help to facilitate early detection of mental health conditions by providing objective, real-time data to supplement other forms of feedback and diagnoses. Few studies have investigated the acceptability and feasibility of using a mobile app to track survey- and wearable-based data in mental health research in Sub-Saharan Africa.

Objective: This pilot study evaluated the feasibility and acceptability of using a mobile app and wearables to capture mental health–based survey data and passively sensed data among Kenyan health care workers.

Methods: A mixed methods study was conducted among health care workers …

Recurrent Upper Gastrointestinal Bleeding Due To Gastric Arteriovenous Malformation, Lavender Otom, Priyanka Panwar, Gerald Odong, Christopher Opio, Saleem Abdulkarim

Internal Medicine, East Africa

We present the case of a 45-year-old male with repeated episodes of upper gastrointestinal bleeding due to a gastric arteriovenous malformation (AVM). The case underscores the diagnostic challenges, multidisciplinary decision-making, and management considerations associated with gastrointestinal vascular malformations. Given the rarity of gastric AVMs and their potential for serious complications, this report highlights the importance of an integrated approach to diagnosis and treatment, including advanced imaging and endovascular interventions.

Incidence And Risk Factors For Stillbirth In Kenya, Mozambique And The Gambia: The Precise Cohort Study, Grace Mwashigadi, Joseph Akuze, Angela Koech, Hawanatu Jah, Anna Roca, Geoffrey Omuse, Moses Mukhanya, Marleen Temmerman, Amina Abubakar, Patricia Okiro

Centre of Excellence in Women and Child Health

Background

Methods

Terminal Digit Preference And Threshold Avoidance In Digital Blood Pressure Measurements During Pregnancy: Secondary Analysis Of Data From The Clip And Precise Cohorts, Peter Dadelszen, Akshdeep Sandhu, Jeffrey Bone, Rahat Qureshi, Olukayode Dada, Ashalata Mallapur, Marleen Temmerman, Marie-Laure Volvert, Joseph Waiswa, Moses Mukhanya, Angela Koech

Centre of Excellence in Women and Child Health

Background:Screening for, detecting, and managing pregnancy hypertension is a core function of antenatal care. To reduce both training requirements and the risks of measurement error in blood pressure (BP) values, automated and semiautomated BP devices have been validated in pregnant women with normal BP and pregnant women with hypertension and introduced for serial antenatal measurement of BP.

Objectives:The study aimed to (1) determine whether or not repeated BP measurements reduced the presence of terminal digit preference and (2) discern whether or not there was evidence of threshold avoidance in the Community-Level Interventions for Preeclampsia (CLIP) trials compared with …

Cancer Workforce-A Global Crisis: A Lancet Oncology Commission, Hedvig Hricak, Zachary Ward, Fabio Moraes, Andrew Scott, Farouk Dako, Wilfred Ngwa, Cynthia Villarreal-Garza, May Abdel-Wahab, Stephen Avery, Miriam Mutebi

General Surgery, East Africa

No abstract provided.

Household Air Pollution Is Associated With Disease Severity In Ugandan Children Hospitalized With Hypoxemic Pneumonia, Ayla Ahmed, Sehaj Sandhu, Sophie Namasopo, Juliet Nabwire, Qaasim Mian, Andrea Conroy, Jackson Amone, Charles Olaro, Robert Opoka, Michael Hawkes

Paediatrics and Child Health, East Africa

Background Household air pollution (HAP) due to biomass fuel use is a risk factor for childhood pneumonia, a leading cause of under-five mortality globally. This study examined the relationship between HAP and disease severity in Ugandan children hospitalized with hypoxemic pneumonia.

Methods We conducted a retrospective case-control study across 20 Ugandan hospitals. PM2.5 exposure was estimated using caregiver-reported fuel use, cooking duration, kitchen structure, and ventilation. Pneumonia severity was assessed clinically, and associations were analyzed using non-parametric tests.

Results We included 735 children (median age 9 months, 42% female) hospitalized with hypoxemic pneumonia. Most households used firewood (84%) or charcoal …

Transcranial Doppler Ultrasound Velocity Measurements In Children With Sickle Cell Disease In Kenya, Catherine Mwalimu, Oscar Odhiambo, Elaine Mashisia, Teresa Mwanja, Allan Ade, Maria De Vita, Katherine Oyieke, Pauline Samia, Fenella Kirkham, Samson Gwer

Paediatrics and Child Health, East Africa

Background Sickle cell disease (SCD) is the most common inherited haemoglobinopathy and poses a high public health burden in Sub-Saharan Africa. Children with sickle cell anaemia are at a highrisk of ischemic stroke, and transcranial Doppler (TCD) ultrasonography helps identify those at highest risk for primary stroke prevention.

Objective To determine the prevalence of abnormal cerebral blood flow velocity (CBFV) in children with SCD and describe CBFV in children without SCD.

Methods We conducted a two-component study comprising a retrospective review and a cross-sectional assessment. TCD measurements from 143 children with confirmed SCD aged 2–16 years were reviewed. In a …

Impact Of Intracranial Pressure Monitoring On 30-Day Mortality In Severe Traumatic Brain Injury: A Retrospective Cohort Study In Kenya, George Ongas, Idris Chikophe, Jacqueline Mavuti, David Olunya, Mubashir Qureshi, Beverly Cheserem, Edwin Mogere

General Surgery, East Africa

OBJECTIVE The objective of this study was to evaluate 15-year trends in epidemiology, baseline severity, management, and outcomes of severe traumatic brain injury (sTBI) at a Kenyan tertiary center, and to determine the impact of invasive intracranial pressure (ICP) monitoring on 30-day mortality in a low- and middle-income country (LMIC) context.

METHODS A retrospective quasi-experimental cohort analysis of consecutive sTBI admissions (postresuscitation Glasgow Coma Scale [GCS] score ≤ 8, age ≥ 13 years) from January 1, 2010, to December 31, 2024, was conducted. This time period was divided into two eras: era 1 (2010–2014), premonitoring, and era 2 (2015–2024), routine …

Cost Of Health Systems Strengthening For Small And Sick Newborn Care In Four Sub-Saharan African Countries Implemented With Nest360: Incremental Cost Analyses, Alice Tarus, Meghan Kumar, Rebecca Penzias, Rosemary Kamuyu, James Cross, Mbozu Sipalo, Edith Gicheha, Christine Bohne, George Okello, William Macharia

Paediatrics and Child Health, East Africa

Background

Methods

Fetal Vascular Malperfusion And Other Placental Lesions In Relation To Maternal Sars-Cov-2 Exposure: A Case–Control Study, Irene Mwandoto, Marleen Temmerman, Ingrid Gichere, Patricia Okiro

Pathology, East Africa

Background:

The morphologic characteristics of placentas associated with coronavirus disease-19 (COVID-19) have been described but with varying findings. Studies conducted at the onset of the pandemic reported frequency of Fetal Vascular Malperfusion (FVM), an umbrella term that describes occlusive vasculopathies that affect fetal circulation and their associated sequelae. Morphologic manifestations include thrombosis, avascular villi and vascular stromal karyorrhexis. Associated outcomes include fetal growth restriction, thromboembolic events such as neonatal stroke and fetal demise. Placental lesions associated with a severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) infection present a unique picture in histology, especially in the attempt to decipher the …

Global Perspectives On Central Nervous System Drug Innovation: Achievements, Barriers, And Priorities For The Next Decade, Hiroyuki Uchida, Gabriella Gobbi, Joseph Zohar, Allan Young, Dan Rujescu, Ming-Chyi Huang, Suresh Sundram, Lukoye Atwoli, Jana Vukovic, Kazutaka Ikeda

Internal Medicine, East Africa

Background Over the past decade, neuropsychopharmacology has shifted from stagnation to momentum, with first-in-class mechanisms and biomarker-enabled trials spanning psychiatry and neurology.

Methods We narratively synthesized advances from 2013 to 2026 across central nervous system (CNS) discovery and development, including pivotal trials, regulatory actions, digital/real-world evidence, genetics, artificial intelligence (AI), and implementation/global-access themes that are endorsed by international societies.

Results Therapeutic gains include rapid-acting drugs for treatment-resistant depression (intranasal esketamine); psychedelic-assisted therapy for posttraumatic stress disorder and depression; neuroactive steroid γ-aminobutyric acid-A receptor positive allosteric modulators (brexanolone, zuranolone) for postpartum depression; non-dopaminergic muscarinic agonists (xanomeline–trospium) for schizophrenia; orexin receptor antagonists …

Global Perspectives On Cns Drug Innovation: Achievements, Barriers, And Priorities For The Next Decade, Hiroyuk Uchida, Gabriella Gobbi, Joseph Zohar, Allan Young, Dan Rujescu, Ming-Chyi Huang, Suresh Sundram, Lukoye Atwoli, Jana Vukovic, Kazutaka Ikeda

Internal Medicine, East Africa

Background Over the past decade, neuropsychopharmacology has shifted from stagnation to momentum, with first-in-class mechanisms and biomarker-enabled trials spanning psychiatry and neurology.

Methods We narratively synthesized advances from 2013 to 2026 across central nervous system (CNS) discovery and development, including pivotal trials, regulatory actions, digital/real-world evidence, genetics, artificial intelligence (AI), and implementation/global-access themes that are endorsed by international societies.

Results Therapeutic gains include rapid-acting drugs for treatment-resistant depression (intranasal esketamine); psychedelic-assisted therapy for posttraumatic stress disorder and depression; neuroactive steroid γ-aminobutyric acid-A receptor positive allosteric modulators (brexanolone, zuranolone) for postpartum depression; non-dopaminergic muscarinic agonists (xanomeline–trospium) for schizophrenia; orexin receptor antagonists …

Participant Recruitment, Baseline Characteristics And Burden Of Cardiometabolic Risk Markers Among Adults With Prediabetes In Kenya: Insights From The Fermented Foods And Prediabetes Study, Rosebella Iseme, Alex Muia, Jacob Shabani, Samuel Mucheru, Catherine Gathu, Eliphas Gitonga, Redempta Mutisya, Peter Kioko, Jalal Safipour, Cornelia Witthöft

Population Health, East Africa

Aims

Methods

Results …

Prevalence And Determinants Of Fully Vaccinated Status For Covid-19 Among Pregnant Women In Brazil, Ghana, Kenya, And Pakistan, Vaishnavi Mathur, Jessica Schue, Berhaun Fesshaye, Prachi Singh, Emily Miller, Caroline Badzi, Emefa Modey, Marleen Temmerman, Ferdinand Okwaro, Renato Souza

Centre of Excellence in Women and Child Health

Maternal immunization provides essential maternal and fetal protection for several infectious diseases. The variability in vaccination guidelines for pregnant women across countries and through the course of the COVID-19 pandemic influenced the perception of both the general public and broader health care systems towards COVID-19 vaccination in pregnancy and moreover shaped the accessibility and decision-making trajectory of pregnant women to become fully vaccinated. As part of a larger multi-country, mixed-methods study, the purpose of this cross-sectional analysis is to assess what factors are associated with pregnant women being fully vaccinated for COVID-19 in Brazil, Ghana, Kenya, and Pakistan. In each …

A Global Prospective Harmonization Framework For Suicidality, Anhedonia, And Obsessive-Compulsive Symptoms In Psychiatric Genetic Studies: A Cross-Continental Study Within The Ancestral Population Network, Ana Diaz-Zuluaga, Jacey Anderberg, Ana Ramirez-Diaz, Andrea Marques, Catherine Rast, Daniel Bustamante, Deborah Jonker, Johanna Valencia-Echeverry, Stella Gichuru, Lukoye Atwoli

Internal Medicine, East Africa

This study aims to prospectively collect harmonized, quantitative, and dimensional psychiatric phenotypes (suicidality, anhedonia, and obsessive-compulsive symptoms) and information on discrimination, stigma, and unfair treatment in up to 27,500 individuals across diverse ancestries and clinical populations for genetic analysis within the NIMH Ancestral Population Network (APN). Five APN projects are participating in the current study (PUMAS-Paisa, PUMAS-NeuroGAP, KOMOGEN-D, LATINO, and SAX-II), spanning recruitment over 15 countries across the Americas, Africa, and Asia. Participants are being enrolled via the recruitment protocols specific to each participating project. The harmonized clinical battery includes the Columbia-Suicide Severity Scale, Snaith-Hamilton Pleasure Scale, and Florida Obsessive-Compulsive …

Low-Abundance And Fragmentary Helicobacter Pylori Dna Detected In Phenotypically Negative Gastric Biopsies Using Targeted Sequencing, Fabien Mbaya-Tshibangu, Alain Cimuanga-Mukanya, Evariste Tshibangu-Kabamba, Nadine Kayiba-Kalenda, Tressy Kalenga-Ngomba, Patrick Ngoma-Kisoko, Gunturu Revathi, Junko Akada, Benoît Mbiya-Mukinayi, Augustin Tshibaka Kabongo

Pathology, East Africa

Accurate detection and monitoring of antimicrobial resistance (AMR) in Helicobacter pylori mainly rely on phenotypic methods and culture, which can sometimes fail when bacterial load is low or after recent treatment. We investigated whether gastric biopsies classified as H. pylori-negative by standard diagnostic techniques still contain detectable bacterial DNA, including regions linked to AMR, and assessed whether selected DNA fragments can mediate allelic exchange in vitro. Gastric biopsies from 46 dyspeptic patients in the Democratic Republic of the Congo (including 23 phenotypically positive and 23 phenotypically negative individuals) were analyzed using long-read amplicon sequencing of seven resistance-associated loci, selective whole-genome …