Gabriella Pinto provides a great example of what undergraduate research can do for a student. The Penn State food science major, who graduates this month, is headed for a good job armed with a wealth of experience and knowledge from her research, which gives her a leg up on her career.

More than a decade after the Economic Community of Central African States (ECCAS) was requested by the African Union (AU) to give life to a new peace and security architecture, political and security cooperation on the continent is still in need of reinforcement.

South Africa’s efforts to foster peace and security have placed it centre stage in some of the continent’s most intractable conflicts. This is an inevitable result of the quest to promote “African solutions for African problems”.

Since the March 24 coup by the Seleka, a loose coalition of Muslim rebels, the Central African Republic has been in free fall. There are about 400,000 internally displaced people, 64,000 refugees, and burned villages, largely in the western part of the country. Banditry, the rise of self-defense militias and clashes between Christian and Muslim communities are now part of daily life for this mineral-rich country in the heart of Africa. The expanding insecurity makes the delivery of humanitarian assistance difficult, and the United Nations has even warned of the risk of genocide.

There is an urgent need for new, potent anti-tuberculosis (TB) drugs with novel mechanisms of action that can be included in new regimens to shorten the treatment period for TB. After screening a library of carbostyrils, we optimized 3, 4-dihydrocarbostyril derivatives and identified OPC-167832 as having potent anti-tuberculosis activity. The minimum inhibitory concentrations of the compound for Mycobacterium tuberculosis ranged from 0.00024 to 0.002 μg/mL. It had bactericidal activity against both growing and intracellular bacilli, and the frequency of spontaneous resistance for Mycobacterium tuberculosis H37Rv was less than 1.91 x 10^-7. It did not show antagonistic effects with other anti-TB agents in an in vitro checkerboard assay. Whole genome and targeted sequencing of resistant isolates to OPC-167832 identified the decaprenylphosphoryl-β-D-ribose 2'-oxidase (DprE1), an essential enzyme for cell wall biosynthesis, as the target of this compound, and further studies demonstrated inhibition of the DprE1 enzymatic activity by OPC-167832. In a mouse model of chronic TB, OPC-167832 showed potent bactericidal activities starting at a dose of 0.625 mg/kg. Further, it exhibited significant combination effects in 2-drug combinations with delamanid, bedaquiline, or levofloxacin. Finally, 3-4 drug regimens comprised of delamanid and OPC-167832 as the core along with bedaquiline, moxifloxacin, or linezolid showed superior efficacy in reducing bacterial burden and preventing relapse compared to the standard treatment regimen. In summary, these results suggest that OPC-167832 is a novel and potent anti-TB agent and regimens containing OPC-167832 and new or repurposed anti-TB drugs may have the potential to shorten the duration of treatment for TB.

Globally, mutations in the katG gene account for the majority of isoniazid-resistant strains of Mycobacterium tuberculosis. Buyankhishig et al analyzed a limited number of Mycobacterium tuberculosis strains in Mongolia and found that isoniazid resistance was mainly attributable to inhA mutations. The GenoType® MTBDRplus assay was performed for isolates collected in the First National Tuberculosis Prevalence Survey and the Third Anti-Tuberculosis Drug Resistance Survey to investigate genetic mutations associated with isoniazid resistance in Mycobacterium tuberculosis in Mongolia. Of the 409 isoniazid-resistant isolates detected by the GenoType® MTBDRplus assay, 127 (31.1%) were resistant to rifampicin, 294 (71.9%) had inhA mutations without katG mutations, 113 (27.6%) had katG mutations without inhA mutations, and two (0.5%) strains had mutations in both the inhA and katG genes. Of the 115 strains with any katG mutation, 114 (99.1%) had mutations in codon 315 (S315T). Of the 296 trains with any inhA mutation, 290 (98.0%) had a C–15T mutation. The proportion of isoniazid-resistant strains with katG mutations was 25.3% among new cases and 36.2% among retreatment cases (p=0.03), as well as 17.0% among rifampicin-susceptible strains and 52.8% among rifampicin-resistant strains (p<0.01). Rifampicin resistance was significantly associated with the katG mutation (adjusted odds ratio 5.36, 95% CI 3.3–8.67, p<0.001). Mutations in inhA predominated in isoniazid-resistant tuberculosis in Mongolia. However, the proportion of katG mutations in isolates from previously treated cases was higher than that among new cases, and that in cases with rifampicin resistance was higher than that in cases without rifampicin resistance.

One of the reasons for the lengthy tuberculosis (TB) treatment is the difficult to treat non-multiplying mycobacterial subpopulation. In order to assess the ability of (new) TB drugs to target this subpopulation, we need to incorporate dormancy models in our pre-clinical drug development pipeline. In most available dormancy models it takes a long time to create a dormant state and it is difficult to identify and quantify this non-multiplying condition.

The Mycobacterium tuberculosis 18b strain might overcome some of these problems, because it is dependent on streptomycin for growth and becomes non-multiplying after 10 days of streptomycin starvation, but still can be cultured on streptomycin-supplemented culture plates. We developed our 18b dormancy time-kill kinetic model to assess the difference in the activity of isoniazid, rifampicin, moxifloxacin and bedaquiline against log-phase growth compared to the non-multiplying M. tuberculosis subpopulation by CFU counting including a novel AUC-based approach as well as time-to-positivity (TTP) measurements.

We observed that isoniazid and moxifloxacin were relatively more potent against replicating bacteria, while rifampicin and high dose bedaquiline were equally effective against both subpopulations. Moreover, the TTP data suggest that including a liquid culture-based method could be of additional value as it identifies a specific mycobacterial subpopulation that is non-culturable on solid media.

In conclusion, the results of our study underline that the time-kill kinetics 18b dormancy model in its current form is a useful tool to assess TB drug potency and thus has its place in the TB drug development pipeline.

Exploring different ways of minimising linezolid toxicity without compromising efficacy is a major quest in the treatment of drug resistant tuberculosis (TB)....

Linezolid has strong antimicrobial activity against the multidrug-resistant (MDR) strains of Mycobacterium tuberculosis. Little is known about the distribution of linezolid in tuberculosis (TB) lesions in patients with MDR-TB. The aim of this study is to evaluate the distribution of linezolid in TB lesions in patients with spinal MDR-TB. Nine patients with spinal MDR-TB were enrolled prospectively from August 2019 to February 2020. The patients received a linezolid-containing anti-TB treatment regimen and needed surgery for the removal of TB lesions. During the operation, nine blood samples, eight diseased bone tissue samples, seven pus samples and four granulation tissue samples were collected simultaneously and 2 h after the oral administration of 600 mg of linezolid. Linezolid concentrations in plasma, diseased bone tissue, pus, and granulation tissue samples were subjected to high-performance liquid chromatography–tandem mass spectrometry. At sample collection, the mean concentrations of linezolid in plasma, diseased bone tissue, pus, and granulation tissue samples of the nine patients were 11.14 ± 5.82, 5.94 ± 4.27, 11.09 ± 4.58, 14.08 ± 10.61 mg/L, respectively. The mean ratios of linezolid concentration in diseased bone/plasma, pus/plasma, and granulation/plasma were 53.84%, 91.69%, and 103.57%, respectively. The mean ratios of linezolid concentration in pus/plasma and granulation/plasma were higher than those in diseased bone/plasma, and the difference was statistically significant (t =-2.810, p = 0.015; t =-4.901, p = 0.001). In conclusion, linezolid had different concentration distributions in different types of TB infected tissues in patients with spinal MDR-TB.

Ebola Virus (EBOV) is among the most devastating pathogens causing fatal hemorrhagic fever in humans. The 2013–2016 epidemics resulted in over 11000 deaths, while another outbreak is currently ongoing. Since there is no FDA-approved drug so far to fight EBOV infection, there is an urgent need to focus on drug discovery. Considering the tight correlation between the high EBOV virulence and its ability to suppress the type-I Interferon (IFN-I) system, identifying molecules targeting viral protein VP24, one of the main virulence determinants blocking IFN response, is a promising novel anti-EBOV therapy approach. Hence, in the effort of finding novel EBOV inhibitors, a screening of a small set of flavonoids was performed, showing that Quercetin and Wogonin can suppress the VP24 effect on IFN-I signaling inhibition. The mechanism of action of the most active compound, Quercetin, showing an IC₅₀ value of 7.4 μM, was characterized to significantly restore the IFN-I signaling cascade, blocked by VP24, by directly interfering with the VP24 binding to karyopherin-α and thus restoring P-STAT1 nuclear transport and IFN genes transcription. Quercetin significantly blocked viral infection, specifically targeting EBOV VP24 anti-IFN-I function. Overall, Quercetin is the first identified inhibitor of the EBOV VP24 anti-IFN function, representing a molecule interacting with a viral binding site that is very promising for further drug development aiming to block EBOV infection at the early steps.

We thank Kim and colleagues for their interest in our study....

The password-fatigued masses will be pleased to find Keeper's new 30 percent off deal, which brings it down to $20.99 per year from its typical $29.99.

Although it's pricey, the intuitive Salesforce Pardot offers standout features, making it a leader among today's marketing automation platforms.

Antoine Griezmann's first-leg away goal has given Barcelona an advantage after the game in Naples finished 1-1.

During special Easter outreaches to women in red light areas, outreach workers go in the knowledge that Jesus is with them and His resurrection power gives hope, strength and life.

For years, Gustavo, an architect from Central America, felt drawn to working in the Arabian Peninsula. Then, on a short-term trip, he saw what it could be like to use his profession overseas.

Despite being aware of the need for discretion when talking about Jesus, Argentinian Cecilia felt no fear while she was in Central Asia.

Rachel Hooker, who will graduate May 9 with a 3.99 GPA in supply chain and information systems, has been selected as the Smeal College of Business’ spring 2020 supply chain and information systems student marshal.

In an effort to help mitigate the disruptive effects of the deadly COVID-19 virus, an interdisciplinary team of Penn State researchers are developing a novel methodology to analyze its spread and the impacts on policy to create better-prepared and more-resilient health care systems.

Penn State University Libraries has developed a curated guide to COVID-19 related resources for researchers, including ongoing research at Penn State.

With speed and ingenuity, more than 100 researchers across Penn State are shifting their research programs to address the COVID-19 crisis, thanks to funding from a seed grant initiative led by the Huck Institutes of the Life Sciences. In total, the initiative awarded $2.25 million to 47 teams of researchers from three campuses, 10 colleges and more than 25 departments.

To assess public perceptions about COVID-19 and identify populations whose behaviors put them at risk of infection, researchers at Penn State have released an online survey for the general public.

The Penn State Center for Structural Oncology is shifting some of its focus from fighting cancer to fighting COVID-19, with three projects.

The Fitbit Inspire HR, which earned an excellent rating in PCMag's review and our Editors' Choice award, is already a good deal at $99.95, but you can grab one right now for just $69.95.

During special Easter outreaches to women in red light areas, outreach workers go in the knowledge that Jesus is with them and His resurrection power gives hope, strength and life.

For years, Gustavo, an architect from Central America, felt drawn to working in the Arabian Peninsula. Then, on a short-term trip, he saw what it could be like to use his profession overseas.

Despite being aware of the need for discretion when talking about Jesus, Argentinian Cecilia felt no fear while she was in Central Asia.

Wine, fish, and excessive use of social media were a few of the topics that earned students top honors in Penn State Hazleton's first-ever virtual Undergraduate Research Fair.

It is crucial that all children are provided with high-quality and safe health care. Pediatric inpatient needs are unique in regard to policies, equipment, facilities, and personnel. The intent of this clinical report is to provide recommendations for the resources necessary to provide high-quality and safe pediatric inpatient medical care.

Want to contribute to Apple's health research studies? You can sign up for programs on women's health, your heart and movement, and hearing using the Research app.

The Windows 10 search feature seems pretty simple, but it can be even more effective. Here are some ways to control your searches and find things faster.

Holders Inter FS, two-time winners Barcelona, Sporting CP and Győr will contest the UEFA Futsal Cup finals in April after topping their elite round groups to make the last four.

Spanish co-hosts Inter FS and Barcelona will face off in the UEFA Futsal Cup semi-finals after being drawn together in the last four of this year's event in Zaragoza, while Győr face Sporting CP.

Google removes the free WireGuard app from the Play Store for having a donation button, reigniting a debate over whether its policy hurts the open-source community.

You don't have to fork over a bunch of cash to get a bunch of storage. PNY flash drives, SD cards, and portable drives are on sale at Amazon, with prices starting as low as $5.84.

The march of Marvel off of Netflix continues and this month a few DC films join in, too.

Amid coronavirus-related school closures, advocates worry Education Secretary Betsy DeVos may waive requirements of special education law if Congress signs off. Schools say it's difficult to meet some requirements during the pandemic.

Nearly 30 disability rights and education advocacy organizations have launched a new resource hub and online network designed to help special educators during the coronavirus crisis.

The TP-Link Archer AX6000 is an 802.11ax router that delivers relatively fast throughput speeds and packs a lot of tech into its sizable frame. Just note that it's not yet Wi-Fi 6 certified.

Usually priced at $79.99, it's available now for just $51.99.

As educators, we need to be critical consumers of educational research before assuming that findings present the "truth."

The Every Student Succeeds Act will give states and districts more authority to be creative in improving schools, but they will need support to use research and data effectively, according to a report by the Center for American Progress think tank and the Knowledge Alliance, a professional group for

When reading articles that reference empirical research, we need to examine how the author makes assumptions before considering the study as "proof."

To better understand educational research, start by asking "who?" Who wrote the study; who published it; and who did the authors intend as their audience?

The research behind growth mindset and grit is familiar to many educators, but when misrepresented, can be harmful. The executive director of the Mindset Scholars Network, explains.

Without rigorous research that accurately reflects the current population, early education won't deliver for all students, write two education researchers.

How a public research event can bring education stakeholders together to discuss important early education issues.