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JMIR Cancer May 2024Given that cancer is a challenging disease that plagues millions of individuals of all age groups and socioeconomic statuses globally, developmentally appropriate...
Given that cancer is a challenging disease that plagues millions of individuals of all age groups and socioeconomic statuses globally, developmentally appropriate education is often lacking for young people, particularly adolescents. Increasing cancer awareness and prevention education among adolescents using innovative strategies, such as game-based learning, is critical in reducing the burden of this disease. Adolescents are understudied in the field of cancer prevention and control, yet vulnerable as they tackle creating life-long health behavior patterns. Targeting cancer prevention education for adolescents has the potential to support long-term healthy behavior and reduce their risk of cancer. This paper provides an overview of the Collaborative Research on MEdication use and family health (CRoME) Lab's novel game-based cancer prevention education tool. OutSMART Cancer is an innovative, novel educational intervention in the form of a serious game. Serious games are educational tools that seek to impart knowledge and improve behaviors in their players. This game covers information related to breast cancer, colon cancer, and lung cancer. This viewpoint is a summary of the developmental process for the OutSMART Cancer game. We describe in detail the work preceding initial game development, the current version of the game, future directions for the game, and its educational potential. The long-term goal of OutSMART Cancer is to improve cancer awareness and knowledge regarding prevention behaviors in adolescents and support a lifetime of health and wellness.
PubMed: 38809587
DOI: 10.2196/56168 -
Epidemiologia (Basel, Switzerland) May 2024From the year 1 anno Domini until 1855, with the third plague, major pandemics occurred on average every 348 years. Since then, they have occurred on average every 33...
From the year 1 anno Domini until 1855, with the third plague, major pandemics occurred on average every 348 years. Since then, they have occurred on average every 33 years, with coronavirus disease 2019 (COVID-19) now underway. Even though current technologies have greatly improved the way of life of human beings, COVID-19, with more than 700,000,000 cases and 6,950,000 deaths worldwide by the end of 2023, reminds us that much remains to be done. This report looks back at 18 months of COVID-19, from March 2020 to August 2021, with the aim of highlighting potential solutions that could help mitigate the impact of future pandemics. COVID-19 data, including case and death reports, were extracted daily from the Worldometer platform to build a database for the macroscopic analysis of the spread of the virus around the world. Demographic data were integrated into the COVID-19 database for a better understanding of the spatial spread of the SARS-CoV-2 virus in cities/municipalities. Without loss of generality, only data from the top 30 (out of 200 and above) countries ranked by total number of COVID-19 cases were analyzed. Statistics (regression, -test ( < 0.05), correlation, mean ± std, etc.) were carried out with Excel software (Microsoft Excel 2013 (15.0.5579.1001)). Spectral analysis, using Matlab software (license number: 227725), was also used to try to better understand the temporal spread of COVID-19. This study showed that COVID-19 mainly affects G20 countries and that cities/municipalities with high population density are a powerful activator of the spread of the virus. In addition, spectral analysis highlighted that the very first months of the spread of COVID-19 were the most notable, with a strong expansion of the SARS-CoV-2 virus. On the other hand, the following six months showed a certain level of stability, mainly due to multiple preventive measures such as confinement, the closure of non-essential services, the wearing of masks, distancing of 2 m, etc. Given that densely populated cities and municipal areas have largely favored the spread of the SARS-CoV-2 virus, it is believed that such a demographic context is becoming a societal problem that developed countries must address in a manner that is adequate and urgent. COVID-19 has made us understand that it is time to act both preventatively and curatively. With phenomenological evidence suggesting that the next pandemic could occur in less than 50 years, it may be time to launch new societal projects aimed at relieving congestion in densely populated regions.
PubMed: 38804342
DOI: 10.3390/epidemiologia5020015 -
One Health (Amsterdam, Netherlands) Jun 2024A mouse plague occurred in Eastern Australia from spring 2020 to winter 2021, impacting an area of around 180,000 km. It harmed human physical and psychological health,...
A mouse plague occurred in Eastern Australia from spring 2020 to winter 2021, impacting an area of around 180,000 km. It harmed human physical and psychological health, damaged the natural and built environment, and endangered farmed, domestic and native animals. However, the mouse plague was overshadowed by the COVID-19 pandemic, especially as the end of the plague coincided with the arrival and surge of the COVID-19 delta strain in rural New South Wales (NSW). In this article, we systematically overview the multiple impacts of the plague and highlight their complex interactions. Using a One Health framework, we comprehensively review the i) human, ii) animal and iii) environmental impacts including economic dimensions. Given the damage that the mouse plague caused to infrastructure, we consider the environment from two perspectives: the natural and the built environment. This One Health description of the 2020-2021 mouse plague identifies priorities for preparedness, response and recovery at local, regional land levels to inform response and management of future mouse plague events in Australia. It also highlights the need for ongoing collaboration between researchers and practitioners in the human, animal and environmental health sectors.
PubMed: 38798736
DOI: 10.1016/j.onehlt.2024.100753 -
Pharmaceuticals (Basel, Switzerland) May 2024Tuberculosis (TB) is a disease that plagues the frailest members of society. We have developed a family of -alkyl nitrobenzamides that exhibit promising antitubercular...
Tuberculosis (TB) is a disease that plagues the frailest members of society. We have developed a family of -alkyl nitrobenzamides that exhibit promising antitubercular activities and can be considered a structural simplification of known inhibitors of decaprenylphosphoryl-β-D-ribofuranose 2'-oxidase (DprE1), an essential (Mtb) enzyme and an emergent antitubercular target. Hereby, we report the development of these compounds via a simple synthetic methodology as well as their stability, cytotoxicity, and antitubercular activity. Studying their activity revealed that the 3,5-dinitro and the 3-nitro-5-trifluoromethyl derivatives were the most active, and within these, the derivatives with intermediate lipophilicities presented the best activities (MIC of 16 ng/mL). Additionally, in an macrophage model of infection, the derivatives with chain lengths of six and twelve carbon atoms presented the best results, exhibiting activity profiles comparable to isoniazid. Although the proof is not definite, the assessment of susceptibility over multiple mycobacterial species, together with the structure similarities with known inhibitors of this enzyme, support DprE1 as a likely target of action for the compounds. This idea is also reinforced by the docking studies, where the fit of our more active compounds to the DprE1 binding pocket is very similar to what was observed for known inhibitors like DNB1.
PubMed: 38794178
DOI: 10.3390/ph17050608 -
Viruses May 2024Plague is an endemic infectious disease caused by . In this study, we isolated fourteen phages with similar sequence arrangements to phage 186; these phages exhibited...
Plague is an endemic infectious disease caused by . In this study, we isolated fourteen phages with similar sequence arrangements to phage 186; these phages exhibited different lytic abilities in Enterobacteriaceae strains. To illustrate the phylogenetic relationships and evolutionary relationships between previously designated 186-type phages, we analysed the complete sequences and important genes of the phages, including whole-genome average nucleotide identity (ANI) and collinearity comparison, evolutionary analysis of four conserved structural genes (, , , and genes), and analysis of the regulatory genes (, and ) and integrase gene (). Phylogenetic analysis revealed that thirteen of the newly isolated phages belong to the genus and one belongs to the genus in the family , and these phages can be roughly clustered into three subgroups. The topological relationships exhibited by the whole-genome and structural genes seemed similar and stable, while the regulatory genes presented different topological relationships with the structural genes, and these results indicated that there was some homologous recombination in the regulatory genes. These newly isolated 186-type phages were mostly isolated from dogs, suggesting that the resistance of Canidae to infection may be related to the wide distribution of phages with lytic capability.
Topics: Phylogeny; Yersinia pestis; Genome, Viral; Bacteriophages; Animals; Evolution, Molecular; Dogs; Plague
PubMed: 38793629
DOI: 10.3390/v16050748 -
Virus Research Aug 2024The plague, caused by Yersinia pestis, is a natural focal disease and the presence of Y. pestis in the environment is a critical ecological concern worldwide. The role...
The plague, caused by Yersinia pestis, is a natural focal disease and the presence of Y. pestis in the environment is a critical ecological concern worldwide. The role of Y. pestis phages in the ecological life cycle of the plague is crucial. Previously, a temperature-sensitive phage named vB_YpM_HQ103 was isolated from plague foci in Yunnan province, China. Upon infecting the EV76 strain of Y. pestis, vB_YpM_HQ103 exhibits lysogenic behavior at 21 °C and lytic behavior at 37 °C. Various methods including continuous passage lysogenic tests, in vitro lysis tests, comparative genomic assays, fluorescence quantitative PCR and receptor identification tests were employed to demonstrate that the lysogenic life cycle of this phage is applicable to wild Y. pestis strains; its lysogeny is pseudolysogenic (carrying but not integrating), allowing it to replicate and proliferate within Y. pestis. Furthermore, we have identified the outer membrane protein OmpA of Y. pestis as the receptor for phage infection. In conclusion, our research provides insight into the characteristics and receptors of a novel Y. pestis phage infection with a pseudolysogenic cycle. The findings of this study enhance our understanding of Y. pestis phages and plague microecology, offering valuable insights for future studies on the conservation and genetic evolution of Y. pestis in nature.
Topics: Yersinia pestis; Lysogeny; Bacteriophages; Genome, Viral; Plague; China; Bacterial Outer Membrane Proteins
PubMed: 38782263
DOI: 10.1016/j.virusres.2024.199395 -
Yersinia pestis can infect the Pawlowsky glands of human body lice and be transmitted by louse bite.PLoS Biology May 2024Yersinia pestis, the causative agent of plague, is a highly lethal vector-borne pathogen responsible for killing large portions of Europe's population during the Black...
Yersinia pestis, the causative agent of plague, is a highly lethal vector-borne pathogen responsible for killing large portions of Europe's population during the Black Death of the Middle Ages. In the wild, Y. pestis cycles between fleas and rodents; occasionally spilling over into humans bitten by infectious fleas. For this reason, fleas and the rats harboring them have been considered the main epidemiological drivers of previous plague pandemics. Human ectoparasites, such as the body louse (Pediculus humanus humanus), have largely been discounted due to their reputation as inefficient vectors of plague bacilli. Using a membrane-feeder adapted strain of body lice, we show that the digestive tract of some body lice become chronically infected with Y. pestis at bacteremia as low as 1 × 105 CFU/ml, and these lice routinely defecate Y. pestis. At higher bacteremia (≥1 × 107 CFU/ml), a subset of the lice develop an infection within the Pawlowsky glands (PGs), a pair of putative accessory salivary glands in the louse head. Lice that developed PG infection transmitted Y. pestis more consistently than those with bacteria only in the digestive tract. These glands are thought to secrete lubricant onto the mouthparts, and we hypothesize that when infected, their secretions contaminate the mouthparts prior to feeding, resulting in bite-based transmission of Y. pestis. The body louse's high level of susceptibility to infection by gram-negative bacteria and their potential to transmit plague bacilli by multiple mechanisms supports the hypothesis that they may have played a role in previous human plague pandemics and local outbreaks.
Topics: Animals; Yersinia pestis; Pediculus; Humans; Plague; Insect Vectors; Insect Bites and Stings; Female; Male
PubMed: 38771885
DOI: 10.1371/journal.pbio.3002625 -
Ui Sahak Apr 2024During the Song period, abscesses were a disease that could affect anyone regardless of their class. This study examines how people at that time explained the cause of...
During the Song period, abscesses were a disease that could affect anyone regardless of their class. This study examines how people at that time explained the cause of abscesses and their efforts to treat them, focusing on the experiences of those who suffered from abscesses and their families. Previous research on disease history during the Song period primarily focused on ailments like colds and infectious diseases , or plagues prevalent in the southern regions of China. On the other hand, examining abscesses as a common everyday illness that could affect anyone and considering them from the perspective of patients' experiences has remained unexplored in previous studies. To reconstruct the experiences of Song period patients, this study analyzes over sixty anecdotes related to abscesses found in Yi Jian Zhi written by Hong Mai. These cases span across the mid to late 12th century, with a majority of the patients being from the literati () class or connected to the literati. These anecdotes exhibit two distinct trends. One focuses on narratives surrounding the onset of abscesses, attributing their cause primarily to the patients' lifestyle. When the cause of the abscesses was unknown, people metaphorically attributed its onset to perceived blasphemy against God, an act of killing, negligence in duties, or other wrongdoings. This trend is evident among the literati class in particular, where abscesses were often linked to factors such as excessive legal executions or exploitation, and even acts of killing people. Except for those cases, in explaining the cause of abscesses in commoners, there were instances caused by a pediculus infestation, while in case of literati, Dansha () poisoning was a common cause. It is interesting to note that the narrative tradition, prevalent in official history biographies, which attributes the onset of abscesses to worries and resentment, was not evident in written records such as Yi Jian Zhi. Furthermore, the detailed description of external similarities, portraying abscesses as traces of punishment from the underground realm, is a narrative characteristic that solidified such stereotypical perceptions. The literati's notion that they should alert people through these related anecdotes contributed to the spread of this perception. Another trend in these anecdotes was centered around narratives of abscess treatment, where the focus shifted primarily to seeking "doctors," unlike the metaphorical explanations of abscess onset causes and processes. When afflicted with abscesses, people generally sought out those renowned surgeons, known as Yang-yi , and those famous for treating abscesses. In local communities, individuals who had "received the divine secrets of abscesses," those possessing their own mysterious abscesses cures, and those famous for generations for treating abscesses by using stone acupuncture were active. Such information about them was shared within the local societies. Their treatment predominantly consisted of surgical procedures to lance abscesses and drain pus, which often led patients to endure significant pain during the treatment process. In many cases, such patients sought treatment from well-known local surgeons and abscess specialists who surgically treated them. The literati, who are said to have influenced the development of pulse-centered medical and academic medicine in China, also sought out surgeons for abscess treatment. Medical formularies compiled by the court as well as privately published ones rarely mentioned surgical methods utilizing tools. The fact that surgical techniques were utilized in local regions at that time indicates a disparity between the official medical practices documented in texts and the practical methods employed in local communities. An analysis of approximately sixty anecdotes related to abscesses shows that abscesses were characterized by unknown causes and excruciating pain. Their onset was often attributed to the patient's lifestyle and wrongdoings, and they were also perceived as punishment for one's wrongdoings. However, as it was a disease where treatment effects could be relatively easily observed through surgical procedures, there was a proactive utilization of the locally formed treatment environment, preferring surgical interventions over relying on religious powers. Contrary to the medical trends and methods outlined in medical literature, surgical treatments were prevalent as the chosen method of treatment among the population in local communities. It appears that the realities experienced, reasoned, and shared by people in the Song period regarding the perception and response to abscesses did not necessarily align with those of mainstream medical practices. Moreover, despite attributing the onset of abscesses to one's wrongdoing, there was a preference for seeking surgeons or Yang-yi over religious methods in their treatment, reflecting a characteristic of the local medical culture surrounding abscesses during the Song period.
Topics: Abscess; China; Humans; History, Medieval; Medicine, Chinese Traditional; Music
PubMed: 38768993
DOI: 10.13081/kjmh.2024.33.135 -
PloS One 2024Amphibians globally suffer from emerging infectious diseases like chytridiomycosis caused by the continuously spreading chytrid fungi. One is Batrachochytrium...
Amphibians globally suffer from emerging infectious diseases like chytridiomycosis caused by the continuously spreading chytrid fungi. One is Batrachochytrium salamandrivorans (Bsal) and its disease ‒ the 'salamander plague' ‒ which is lethal to several caudate taxa. Recently introduced into Western Europe, long distance dispersal of Bsal, likely through human mediation, has been reported. Herein we study if Alpine salamanders (Salamandra atra and S. lanzai) are yet affected by the salamander plague in the wild. Members of the genus Salamandra are highly susceptible to Bsal leading to the lethal disease. Moreover, ecological modelling has shown that the Alps and Dinarides, where Alpine salamanders occur, are generally suitable for Bsal. We analysed skin swabs of 818 individuals of Alpine salamanders and syntopic amphibians at 40 sites between 2017 to 2022. Further, we compiled those with published data from 319 individuals from 13 sites concluding that Bsal infections were not detected. Our results suggest that the salamander plague so far is absent from the geographic ranges of Alpine salamanders. That means that there is still a chance to timely implement surveillance strategies. Among others, we recommend prevention measures, citizen science approaches, and ex situ conservation breeding of endemic salamandrid lineages.
Topics: Animals; Batrachochytrium; Mycoses; Urodela; Communicable Diseases, Emerging; Salamandra; Europe; Chytridiomycota
PubMed: 38758948
DOI: 10.1371/journal.pone.0298591 -
FEMS Microbiology Reviews May 2024Bloodstream infection is a major public health concern associated with high mortality and high healthcare costs worldwide. Bacteremia can trigger fatal sepsis whose... (Review)
Review
Bloodstream infection is a major public health concern associated with high mortality and high healthcare costs worldwide. Bacteremia can trigger fatal sepsis whose prevention, diagnosis, and management have been recognized as a global health priority by the World Health Organization. Additionally, infection control is increasingly threatened by antimicrobial resistance, which is the focus of global action plans in the framework of a One Health response. In-depth knowledge of the infection process is needed to develop efficient preventive and therapeutic measures. The pathogenesis of bloodstream infection is a dynamic process resulting from the invasion of the vascular system by bacteria, which finely regulate their metabolic pathways and virulence factors to overcome the blood immune defenses and proliferate. In this review, we highlight our current understanding of determinants of bacterial survival and proliferation in the bloodstream and discuss their interactions with the molecular and cellular components of blood.
Topics: Humans; Bacteria; Bacteremia; Virulence Factors; Blood; Microbial Viability
PubMed: 38734892
DOI: 10.1093/femsre/fuae013