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At least 37 records · Page 2Linked to original sources
PubMed2026

Aztreonam-avibactam Activity against Enterobacterales from Asia Pacific and Latin American Medical Centres: Summary of 5 years of Surveillance prior to Clinical Use (2020-2024).

OBJECTIVES: To assess the in vitro activity of aztreonam-avibactam against Enterobacterales from the Asia Pacific region (APAC) and Latin America (LATAM) during a 5-year period prior to its approval for clinical use in these regions. METHODS: 12,039 Enterobacterales isolates were consecutively collected in 2020-2024 from 17 medical centres in APAC (n=7,369) and 10 in LATAM (n=4,670) then susceptibility tested by broth microdilution. Carbapenem-resistant Enterobacterales (CRE) and isolates with elevated aztreonam-avibactam MICs (>4 mg/L) were submitted to whole genome sequencing. RESULTS: Aztreonam-avibactam was active against 99.9% of Enterobacterales from APAC and LATAM and exhibited potent activity against CRE isolates (MIC50/90, 0.25/2 mg/L; 97.3% susceptible in APAC and MIC50/90, 0.25/0.5 mg/L; 99.4% susceptible in LATAM). Cefiderocol was active against 91.2% of CREs from APAC and LATAM. Ceftazidime-avibactam, meropenem-vaborbactam, and imipenem-relebactam showed limited activity against CRE isolates from LATAM (53.5% to 64.8% susceptibility) and APAC (27.3% to 38.8% susceptible). The occurrence of carbapenemases varied clearly among the countries evaluated. In general, metallo-β-lactamases (MBLs) prevailed in APAC and KPCs predominated in LATAM, but with great variability among countries within a region. Decreased susceptibility to aztreonam-avibactam was largely due to PBP3 alterations plus the production of CMY and/or CTX-M β-lactamases among Escherichia coli, and decreased membrane permeability associated with KPC production among Klebsiella pneumoniae. CONCLUSIONS: The results of this investigation provide a baseline for monitoring the activity of aztreonam-avibactam in APAC and LATAM and emphasize the importance of surveillance programs to monitor the emergence of resistance markers.

Aztreonam-avibactam↗
PubMed2025

Evaluation of Multiple Breast Cancer Polygenic Risk Score Panels in Women of Latin American Heritage.

BACKGROUND: A substantial portion of the genetic predisposition for breast cancer is explained by multiple common genetic variants of relatively small effect. A subset of these variants, which have been identified mostly in individuals of European (EUR) and Asian ancestries, have been combined to construct a polygenic risk score (PRS) to predict breast cancer risk, but the prediction accuracy of existing PRSs in Hispanic/Latinx individuals (H/L) remain relatively low. We assessed the performance of several existing PRS panels with and without addition of H/L-specific variants among self-reported H/L women. METHODS: PRS performance was evaluated using multivariable logistic regression and the area under the ROC curve. RESULTS: Both EUR and Asian PRSs performed worse in H/L samples compared with original reports. The best EUR PRS performed better than the best Asian PRS in pooled H/L samples. EUR PRSs had decreased performance with increasing Indigenous American (IA) ancestry, while Asian PRSs had increased performance with increasing IA ancestry. The addition of two H/L SNPs increased performance for all PRSs, most notably in the samples with high IA ancestry, and did not impact the performance of PRSs in individuals with lower IA ancestry. CONCLUSIONS: A single PRS that incorporates risk variants relevant to the multiple ancestral components of individuals from Latin America, instead of a set of ancestry-specific panels, could be used in clinical practice. IMPACT: The results highlight the importance of population-specific discovery and suggest a straightforward approach to integrate ancestry-specific variants into PRSs for clinical application.

Adult↗
PubMed1976

Scleroma of the nose and pharynx.

Scleroma of the respiratory tract was first recognized just over a century ago. The disease is endemic in a number of North African, Central American and Latin American countries. However, it has been only rarely seen in the United States. The progression of scleroma takes place through three stages. The first stage of rhinitis has an early catarrhal phase which progresses to one of atrophic rhinitis. The second stage is seen as a proliferative granulomatous growth which obliterates the nasal fossae. The third cicatricial stage is usually accompanied by pronounced scarring and retraction of the tissues involved. Because of the increased ease of international travel by both sea and air, more cases can be expected to occur in the United States. This paper is presented to alert physicians to suspect scleroma in any case of granulomatous disease of the respiratory tract.

Adolescent↗
PubMed2026

Current knowledge in pharmacogenomics and precision medicine: perspectives of the PGRN global PGx committee on improving drug therapies in underrepresented ethnic populations.

A precision medicine strategy is likely to be more impactful, when pharmacogenomics (PGx) guided selection of drugs and dosage wherever applicable is implemented across the globe. In regions where resources are disproportionately distributed, PGx implementation in routine clinical care can play a critical role in ensuring the optimal use of limited healthcare infrastructure. At present, PGx data from the majority of the distinct ethnic populations across Asia, Africa, and South America is limited. While international consortia, working groups, and scientific bodies have made significant contributions toward evaluating the evidence for PGx implementation, the majority of existing guidelines and recommendations are derived primarily from studies conducted in a limited number of ethnic groups. Precision Medicine Initiatives in countries like Korea, Taiwan, and Malaysia and PGx organizations like the African Institute of Biomedical Science and Technology (AiBST), Consortium for Genomics & Therapeutics in Africa (CGTA), implementation of pharmacogenetic testing for the effective care and treatment in Africa, Greater Middle East (GME) whole exome sequencing program, Ibero-American Network of Pharmacogenetics and Pharmacogenomics (RIBEF), Latin American Society of Pharmacogenomics and Personalized Medicine (SOLFAGEM), Latin American Network for Validation and Implementation of Pharmacogenomic Clinical Guidelines (RELIVAF), IndiGen initiative, Southeast Asian Pharmacogenomics Research Network (SEAPharm), are working toward consolidating the PGx presence in these regions.

Precision Medicine↗
PubMed1978

Racial patterns in pernicious anemia. Early age at onset and increased frequency of intrinsic-factor antibody in black women.

Pernicious anemia affects primarily elderly northern Europeans, but may affect others more often than previously thought. Therefore, we analyzed the data from 156 documented cases: there were 73 patients of "European" origin, 52 black patients and 31 Latin-American patients. The mean age (+/- 1 S.D.) at presentation among black women, 53 +/- 16 years, was lower than that of all the others (P less than 0.001 in most comparisons), and seven of the 33 black women were less than 40 years old. In addition, 23 of the 24 black women tested had circulating antibody to intrinsic factor. A similar though less striking antibody prevalence (85 per cent) and age pattern (60 +/- 13 years) in Latin-American women did not reach statistical significance. No other group exceeded the usual 55 to 70 per cent prevalence of antibody. These finding suggest a different form of or a different response to the disease in black women and perhaps in Latin-American women.

Adult↗
PubMed1977

The epidemiology of drug promotion.

A survey was conducted on the promotion of 28 prescription drugs in the form of 40 different products marketed in the United States and Latin America by 23 multinational pharmaceutical companies. Striking differences were found in the manner in which the identical drug, marketed by the identical company or its foreign affiliate, was described to physicians in the United States and to physicians in Latin America. In the United States, the listed indications were usually few in number, while the contraindications, warnings, and potential adverse reactions were given in extensive detail. In Latin America, the listed indications were far more numerous, while the hazards were usually minimized, glossed over, or totally ignored. The differences were not simply between the United States on the one hand and all the Latin American countries on the other. There were substantial differences within Latin America, with the same global company telling one story in Mexico, another in Central America, a third in Ecuador and Colombia, and yet another in Brazil. The companies have sought to defend these practices by contending that they are not breaking any Latin American laws. In some countries, however, such promotion is in clear violation of the law. The corporate ethics and social responsibilities concerned here call for examination and action.

Adrenal Cortex Hormones↗
PubMed1977

[Integrated teaching of morphological sciences in medical training].

To provide more information to participants in the Second Meeting of the Textbook Committee of PAHO/WHO for the teaching of the Morphological Sciences in the Medical Schools of Latin American, a survey was held of the departments of those sciences, in 150 Latin American schools to acquire updated information on the academic organization, the work schedule of the teachers, the levels of integration of the instruction, use of textbooks by students, and the degree of familiarity with the PAHO/WHO Testbook Program and its coverage. The results of the survey, presented in detail in this document, demonstrate the persistence of most of the problems discussed in the First Meeting of the Committee (1969), which makes it necessary to reconsider the integrated teaching of the morphological sciences and the strategies for attaining it. The document also analyzes the development of the morphological sciences and of integration in them.

Education, Medical↗
PubMed1977

The medical "brain drain" and health priorities in Latin America.

This analysis of the medical brain drain places the problem in the context of the health care infrastructure in the developing world. It emphasizes Latin American social realities as a corrective to the self-interest which characterizes much of the current debate in the United States. It is argued that the same factors constituting emigration "push" factors in Latin America simultaneously underscore the relative unimportance of medical manpower migration compared to other obstacles to health progress. That conclusion is supported by a comparison of the relative damage caused by the brain drain by itself and the damage caused by factors which the brain drain concomitantly symbolizes and flows from: elitist objectives, misdirected priorities, unrealistic policies, and inadequate planning on the part of most Latin American nations. In the absence of urgently needed change in traditional structures, merely closing the gates on foreign medical graduates will not serve to ameliorate health conditions in the region. Those who seek real health improvements for developing nations must address greater challenges than the brain drain.

Allied Health Personnel↗
PubMedDate not supplied

[Program of integral general medicine].

This paper intends to present to all the medical profession, but more specifically to the Medican and Latin American medical workers and authorities, the main purposes that arm and give structure to a new concept of teaching and learning medicine called, "Integral General Medicine" (also known as "Plan A-36"). This plan in basically conceived for México and most of Latin American countries, but may be applied to any other. The main idea is to keep the students in close contact with the community in order to achieve the best of their knowledge, both theoretically and practically, since the very early stages of their entrance to the medical school. The whole scholarship curriculum is described with reference to every one of the four academic years that accomplish the program.

Community Medicine↗
PubMedDate not supplied

A study of illness referral in a Spanish-speaking community.

In an anthropologic study of illness referral among Latin-American immigrants three phases were ascertained: First, there was extended use of self-treatment. Second, referrals were made to the social network, particularly to people from the same country of origin. Finally, referrals to the professional network were made to professionals with the same cultural heritage. Latin-American immigrant families living in a cooperative were studied over a 14-month period, utilizing the method of participant observation, a family health calendar, and interviews. This report focuses on the results of the family health calendar. Most illnesses reported by families did not go beyond self-treatment. Cultural influences including language, social network, priorities of daily living were related to the alternatives selected by families when illness incidents occurred.

Disease↗
PubMed1977

[Models of community participation in health programs].

Study of some Latin American experiences of community participation in health programs permit consideration of the following as minimum requirements for the establishment of interrelationships between local health agencies and the community: a local health system; a participating health team; respect for the community; contact with community organizations; and contact with private and governmental organizations at a local level. The models for community participation in health are manifold and the experiences have been countless. For teaching purposes and based on Latin American experiences several considerations are made regarding: community health volunteers; local health councils; local councils for community development; and health brigades. Finally, it is stressed that active and organized community participation in health activities is the best guarantee of success in implementing integral health programs.

Community Health Services↗
PubMed1976

Results of the Inter-American Investigations of Mortality relating to reproduction.

Maternal age and parity, according to the findings of the Inter-American Investigation of Mortality in Childhood, have a direct relationship to the health and survival of the infant. Among the results of this broad undertaking are data suggesting that babies born close in succession, especially within large families and as birth order ascends, are at greater risk of dying. Also, the offspring's future is increasingly threatened as the mother's age tends toward the extremes of the childbearing years. Compromise of the mother's health, in turn, was indicated in the earlier Investigation, a study of deaths in adults, which revealed unexpectedly high maternal mortality in the Latin American cities that it covered. Immaturity, or low birthweight, and malnutrition emerged as the two major underlying or associated causes of death in the Latin American projects of the Inter-American Investigation of Mortality in Childhood. Despite the marked variations in the data available from the different areas, there appeared to be some correlation between these two indicators of deficits in growth and development. Mortality due to immaturity was especially high for babies of young mothers, with increases occurring as the birth order rose. Not only are the risks greater for mothers having low-weight babies when they are young (under 20), but they increase even more with the second, third, and fourth products when the birth intervals become shorter. Maternal age, birth order, and birthweight are factors that must be considered in combination in the programming of protective health measures.

Adolescent↗