Deciphering the antimicrobial, antibiofilm and membrane stabilizing synergism of Mikania scandens (L.) Willd. leaves and stems substantiation through in vitro and in silico studies.

Considering the traditional application of Mikania scandens (L.) Willd. against wounds and itching. Leaves (MSL) and stems (MSS) were sequentially extracted using solvents petroleum-ether, carbon-tetrachloride, chloroform, ethyl-acetate and ethanol. Disk-diffusion assay revealed the ethyl acetate MSL and MSS extracts were the prominent against ten bacteria, five carbapenem-resistant bacteria and one fungal strains. Subsequent quantitative antimicrobial analysis specified MSL extractives more potent over MSS with lower 1500 and 3500µg/ml MIC and MBC value in both gram-negative and positive bacteria. These sturdiest ethyl-acetate MSL extractives antimicrobial efficiency also fostered fungicidal activity having lower 100µg/ml MFC. Whereat, almost homologous 160-180 min timing noted liken to standard ciprofloxacin susceptibility in both strains, 75% biofilm inhibition at 2×MIC concentration along with 92±0.2% membrane stabilizing activities over synthetic counterparts prospected in preceding standard extractives. Computational molecular docking of MSL compounds supported this findings therefore forego this valuable synergistic insight as antimicrobial agents to efficiently eradicate human infections.

Chemical, biological and protein-receptor binding profiling of Bauhinia scandens L. stems provide new insights into the management of pain, inflammation, pyrexia and thrombosis.

Bauhinia scandens L. (Family, Fabaceae) is a medicinal plant used for conventional and societal medication in Ayurveda. The present study has been conducted to screen the chemical, pharmacological and biochemical potentiality of the methanol extracts of B. scandens stems (MEBS) along with its related fractions including carbon tetrachloride (CTBS), di-chloromethane (DMBS) and n-butanol (BTBS). UPLC-QTOF-MS has been implemented to analyze the chemical compounds of the methanol extracts of Bauhinia scandens stems. Additionally, antinociceptive and anti-inflammatory effects were performed by following the acetic acid-induced writhing test and formalin-mediated paw licking test in the mice model. The antipyretic investigation was performed by Brewer Yeast induced pyrexia method. The clot lysis method was implemented to screen the thrombolytic activity in human serum. Besides, the in silico study was performed for the five selected chemical compounds of Bauhinia scandens, found by UPLC-QTOF-MS By using Discover Studio 2020, UCSF Chimera, PyRx autodock vina and online tools. The MEBS and its fractions exhibited remarkable inhibition in dose dependant manner in the antinociceptive and antiinflammatory investigations. The antipyretic results of MEBS and DMBS were close to the standard drug indomethacin. Investigation of the thrombolytic effect of MEBS, CTBS, DMBS, and BTBS revealed notable clot-lytic potentials. Besides, the phenolic compounds of the plant extracts revealed strong binding affinity to the COX-1, COX-2, mPGES-1 and plasminogen activator enzymes. To recapitulate, based on the research work, Bauhinia scandens L. stem and its phytochemicals can be considered as prospective wellsprings for novel drug development and discovery by future researchers.

Relation of vaccination with severity, oxygen requirement and outcome of COVID-19 infection in Chattogram, Bangladesh

IntroductionPeoples all around the world are waiting for vaccination against COVID -19 infection. In Bangladesh, Astra-Zeneca (AZ) vaccine was provided, but patients had infections of SARS-COV-2 even after vaccination. We focused on observing the severity, oxygen requirement and outcome of the COVID-19 infected patients who took the first dose or completed the immunization regimen. MethodsThis is an observational study done among 174 COVID-19 patients from three COVID-19 dedicated hospitals of Chattogram, Bangladesh, who took AZ vaccines 1st dose or completed the schedule. All patients were Real-Time Reverse Transcription Polymerase Chain Reaction (rRT-PCR) positive for COVID-19. Patients were enrolled after receiving written informed consent. Suspected cases or unwilling patients were excluded from the study. Ethical approval was granted by the CMOSH-ERB. SPSS-20 was used to analyze the information gathered. ResultsAmong 174 vaccinated patients, 55(31.61%) completed the vaccination schedule, and 119(68.39%) took their 1st dose of the COVID-19 vaccine. Gender distributions revealed 67(38.5%) female and 107(61.5%) male got the vaccine, and 55 patients completed the full two doses, and 119 patients took the 1st dose. Most of the patients were 40 years and above. In the completed vaccination group, 33(60.0%) out of 55 in and in the first dose vaccinated group, 75(63.0%) out of 119 had a mild COVID-19, and severe and critical cases were found very minimum. Among the patients who have completed the vaccination, 32(58.2%) needed no oxygen, and who was given the first dose, 78(65%) needed no oxygen. No death occurred who completed the vaccine, and 3(2.5%) patients died who took 1st dose of the vaccine. ConclusionVaccine provided in Bangladesh to the people so far seems safe and effective. Severe and critical COVID-19 is low, and the need for oxygen to admitted patients is less, and the death rate is minimal.

Factors associated with COVID-19 vaccine receipt at two integrated healthcare systems in New York City: A Cross sectional study of healthcare workers

ObjectivesTo examine factors associated with COVID-19 vaccine receipt among healthcare workers, including healthcare worker job type, race, and gender, as well as the role of vaccine confidence in decisions to vaccinate, and to better understand specific concerns related to COVID-19 vaccination among healthcare workers. DesignCross-sectional anonymous survey among front-line, support service, and administrative healthcare workers. SettingTwo large integrated healthcare systems (one private and one public) in New York City during the initial rollout of the COVID-19 vaccine among healthcare workers. Participants1,933 healthcare workers, including nurses, physicians, allied health professionals, environmental services staff, researchers, and administrative staff. Main Outcome MeasuresThe primary outcome was COVID-19 vaccine receipt during the initial rollout of the vaccine among healthcare workers. ResultsAmong 1,933 healthcare workers who had been offered the vaccine, 81% had received the vaccine at the time of the survey. Receipt was lower among Black (58%) compared with White (91%) healthcare workers; and lower among Hispanic (69%) compared with non-Hispanic (84%) healthcare workers. Among healthcare workers with concerns about COVID-19 vaccine safety, 65% received the vaccine. Among healthcare workers who agreed with the statement that the vaccine is important to protect family members, 86% were vaccinated. Of those who disagreed, 25% received the vaccine. Across all participants, 27% expressed concern about being experimented on with the COVID-19 vaccine. In a multivariable analysis, concern about being experimented on with the COVID-19 vaccine, concerns about COVID-19 vaccine safety, lack of influenza vaccine receipt, disagreeing that COVID-19 vaccination is important to protect family members, and Black race were independently associated with COVID-19 vaccine non-receipt. Over 70% of all healthcare workers responded that they had been approached for vaccine advice multiple times by family, community members, and patients. ConclusionsOur data demonstrated high overall receipt among healthcare workers. Even among healthcare workers with concerns about COVID-19 vaccine safety, side effects, or being experimented on, over 50% received the vaccine. Attitudes around the importance of COVID-19 vaccination to protect others played a large role in healthcare workers decisions to vaccinate. We observed striking inequities in COVID-19 vaccine receipt, particularly affecting Black and Hispanic workers. Further research is urgently needed in developing strategies with healthcare workers to address issues related to vaccine equity and uptake in the context of systemic racism and barriers to care. This is particularly important given the influence healthcare workers have in vaccine decision-making conversations in their communities. SUMMARY BOXES What is already known?O_LIHigh uptake of effective COVID-19 vaccines among healthcare workers is critical to pandemic response. C_LIO_LIIn studies of potential COVID-19 vaccine acceptance prior to COVID-19 vaccine availability, people who identified as Black were less likely to indicate they would accept the vaccine. C_LIO_LIUnderstanding reasons why some healthcare workers chose not to get the COVID-19 vaccine will help us develop interventions to improve COVID-19 vaccine confidence among healthcare workers and in their communities. C_LI What this study addsO_LIWe demonstrate high receipt of COVID-19 vaccines in the initial rollout among healthcare workers. C_LIO_LIAttitudes around the importance of COVID-19 vaccination to protect others played a large role in healthcare workers decisions to vaccinate. C_LIO_LIWe observed substantially lower rates of receipt among Black and Hispanic healthcare workers, independent of differences in vaccine-related beliefs. A quarter of healthcare workers expressed concerns about being experimented on. These results suggest systemic racism may be a critical barrier to equitable vaccination. C_LIO_LIOur results highlight that healthcare workers of all types, including those with non-patient-facing roles, play an important role as sources of COVID-19 vaccine information in their communities. C_LI

Disaggregating Asian Race Reveals COVID-19 Disparities among Asian Americans at New York City's Public Hospital System

There is growing recognition of the burden of COVID-19 among Asian Americans, but data on outcomes among Asian ethnic subgroups remain extremely limited. We conducted a retrospective analysis of 85,328 patients tested for COVID-19 at New York Citys public hospital system between March 1 and May 31, 2020, to describe characteristics and COVID-19 outcomes of Asian ethnic subgroups compared to Asians overall and other racial/ethnic groups. South Asians had the highest rates of positivity and hospitalization among Asians, second only to Hispanics for positivity and Blacks for hospitalization. Chinese patients had the highest mortality rate of all groups and were nearly 1.5 times more likely to die than Whites. The high burden of COVID-19 among South Asian and Chinese Americans underscores the urgent needs for improved data collection and reporting as well as public health program and policy efforts to mitigate the disparate impact of COVID-19 among these communities.