POST-VACCINATION SARS-COV-2 IGG ANTIBODY TITER IN DIALYSIS PATIENTS

Background: Dialysis patients have a higher COVID-19 fatality rate than the general population and are priority candidates for SARS-CoV-2 vaccination. However, dialysis patients are immunocompromised, suggesting that they may develop a less immune response to COVID-19 vaccination than healthy individuals. Objective and Methods: A total of 358 hemodialysis patients who were twicevaccinated with BNT162b2 were included. SARS-CoV-2 IgG antibody titer was measured within 7 days to 1 month, 1∼2 months, and 3∼4 months after the second vaccination, and factors influencing antibody titer were statistically investigated. SARS-CoV-2 IgG measurement was performed using SARS-CoV-2 IgG II Quant Reagent (Abbott), which is a reagent to quantitatively measure IgG antibodies against the receptor-binding domain of SARS-CoV-2 spike protein. Results: The patients were 240 males (67%) and 118 females, ranging from 37 to 95 years old, with a median age of 70 years. Causes of kidney failure were diabetes mellitus in 35.2%, hypertensive kidney disease in 7.3%, glomerular disease in 30.5%, and polycystic kidney disease in 4.5% of the patients. Comorbidities were hypertension in 64.3% and diabetes in 48.9%. Steroids or immunosuppressive drugs were used in 9% of the patients. SARS-CoV-2 IgG antibody titers at 7 days to 1 month, 1 to 2 months, and 3 to 4 months (median 10, 42, and 98 days) after the second vaccination have the median of 4092 AU/mL(with interquartile range: 1354, 7592), 2199 (927, 4692), and 789 (323, 1559), respectively. Post-vaccination SARS-CoV-2 IgG titers were significantly correlated with Kt/V, the presence of autoimmune diseases, the use of steroids or immunosuppressive drugs, malignancy treatment, and serum albumin and hemoglobin levels. Multivariate analysis showed that the factors that decreased post-vaccination SARS-CoV-2 IgG titer were the use of steroids and immunosuppressive drugs, the presence of malignant tumors under treatment, and hypoalbuminemia. Conclusion: Compared to healthy subjects in previous reports, dialysis patients had lower SARS-CoV-2 IgG titers after COVID-19 vaccination, suggesting that the vaccine may not be sufficiently effective. In addition, SARS-CoV-2 IgG titers are likely to be even lower in patients at high risk for decreased immune response due to medications or comorbidities. Additional vaccination may be essential for hemodialysis patients who are expected to have low SARS-CoV-2 IgG titers.

COVID-19 Vaccine Development Studies and Nanotechnology Approaches

Despite the development of new antigens and adjuvants in conventional vaccine studies, different approaches are required in vaccine formulations due to the poor immunogenicity, in vivo intrinsic instability, toxicity, and the need for multiple administrations of conventional vaccines. To overcome these problems, nanotechnology approaches have recently been incorporated into vaccine formulations. As the development of vaccines is directed towards "minimal” compositions with low immunogenicity, there is an increasing need for new formulations that enhance the efficacy of antigens and adjuvants. There is an urgent need to regulate existing advanced treatment options for the global health threat posed by COVID-19, as well as to accelerate the development of new vaccines and drugs. Nano-sized carrier systems developed for the diagnosis and treatment of many diseases, especially cancer, continue to maintain their importance in the COVID-19 pandemic. The use of nanoparticles in medicine started about 30 years ago, but gained momentum with the pandemic and reached many people in a short time with vaccine formulation. The rapid development, approval and delivery of SARS-CoV-2 vaccines is one of the most important achievements in the history of medicine, and nanomedicine is part of that history. Within the scope of the review, up-to-date information was given about the use of nanotechnology and nanoparticles in COVID-19 vaccine development studies.

Impact of a new coronavirus infection on causes of death in Moscow and St. Petersburg

The distribution of causes and mortality rates in Moscow and St. Petersburg (SPb) are different. Objective. To analyze changes in the distribution of causes of death in Moscow and St. Petersburg related to the COVID-19 pandemic. Material and methods. The data were used on the annual average population and the annual number of deaths in one-year age groups according to Rosstat for 2019—2021. Standardized mortality rates based on the European standard were calculated. An ABC analysis of the deaths and causes of death in the two cities was performed. Results. Despite the new coronavirus infection, mortality rates in St. Petersburg exceeded those in Moscow by 20% for three years. ABC analysis of the cause of death distribution showed a sharp decrease in the number of causes responsible for 80% of deaths. The 50 leading causes of death in St. Petersburg were more consistent. In the list of causes, mortality due to malignant neoplasms of various localizations in Moscow has shifted down by 3—11 positions, and in St. Petersburg, it increased by 10 positions. The proportion of malignant neoplasms exceeds half of the deaths due to gastrointestinal and respiratory diseases. Mortality from cardiovascular diseases in Moscow was 30% lower in 2021. Mortality from diseases associated with the gastrointestinal tract tended to decrease in both cities. Mortality from respiratory diseases was 15—20% lower in Moscow. The changing distribution of causes of death during a pandemic was expected for several reasons. In Moscow, compared to St. Petersburg in 2020, the «coronavirus infection» diagnosis was apparently used more «cautiously» as a cause of death. Conclusion. The coronavirus pandemic had a significant impact on mortality rates and distribution. The trends of mortality changes during the analyzed period were often inconsistent;however, mortality from leading causes in St. Petersburg remained higher than in Moscow.

Oncological emergencies

The incidence of cancer continues to rise, with an estimated 1 in 2 of the UK population born after 1960 diagnosed with malignancy at some point during their lifetime. This is in the context of an ageing population with increasing multimorbidity and polypharmacy. Cancer patients are frequent users of emergency care services and have a high rate of ambulance conveyance and hospital admission after review in emergency departments. Presentations can be a consequence of the cancer, its treatment or coexistent morbidity. Given the expanding armamentarium of cancer therapies, acute and general physicians are faced with a myriad of complex issues and require a knowledge of the broad principles of initial assessment, initial management and timely access to the wider multi-professional cancer team. © 2022

Mechanism-based approaches of 1,3,4 thiadiazole scaffolds as potent enzyme inhibitors for cytotoxicity and antiviral activity

Significant progress in understanding cancer pathogenesis, it remains one of the leading causes of death after cardiovascular diseases. Similarly viral infections have emerged from wildlife or re-emerged, generating serious threats to the global health. As a result, there is an urgent need for the development of novel, more effective anticancer and antiviral therapeutics. Scientists, medicinal chemists and researchers are continuously finding novel targets, mechanisms and molecules against theses severe and dangerous infections. Therefore, ongoing extensively study and research emphasizes 1,3,4 thiadiazole pharmacophore have versatile pharmacological actions. Due to mesoionic behaviour of 1,3,4 thiadiazole pharmacophore allows to enter and easily cross biological membrane which allow to interact various biological proteins. In this review study an attempt has been made of various mechanisms involved in cancer and viral prevalence with updated studies done so far. This review study also findings the role of 1,3,4 thiadiazole motif in the management of various cancers and viral infection. This study also highlighting research statics on clinical trials and various patents containing 1,3,4 thiadiazole derivatives. © 2022 The Author(s)

Early mortality following COVID-19 infection among cancer patients who received radiotherapy: a meta-analysis

Introduction: Identifying the patients at higher risk for poor outcomes after radiotherapy (RT) during coronavirus disease 19 (COVID-19) era is an unmet clinical need. Methods: The Ovid MEDLINE, Ovid Embase, Clarivate Analytics Web of Science, PubMed and Wiley-Blackwell Cochrane Library databases were searched. Eligible studies were required to address the outcomes of cancer patients who underwent RT during the COVID-19 era. The primary outcome was early mortality, while secondary outcomes included length of hospital stay, hospital admission, intensive care unit (ICU) admission and use of mechanical ventilation. Pooled event rates were calculated, and meta-regression and 'leave-one-out' sensitivity analyses were performed. Results: Twelve eligible studies were included out of 928. The prevalence of early mortality after COVID-19 infection was 21.0%. The prevalence of hospital admission, ICU admission and mechanical ventilation was 78.1, 15.4 and 20.0%, respectively. Meta-regression showed that older age was significantly and positively associated with early mortality (β = 0.0765± 0.0349, p = 0.0284), while breast cancer was negatively associated with early mortality (β=-1.2754±0.6373, p = 0.0454). Conclusions: Older age adversely impacts the early mortality rate in cancer patients during COVID-19 era. The risks of interruption/delay of cancer treatment should be weighed against the risk of increased morbidity and mortality from the infection. A global registry is needed to establish international oncologic guidelines during the COVID-19 era. © 2021 The Author(s).

Duodenal Stricture as a Rare, Possible Complication of Eosinophilic Gastrointestinal Disease (Egid)

EGID is a recently described condition with an unknown etiology and pathogenesis. There are three case reports of duodenal stricture associated with EGID: one in an adult requiring pancreaticoduodenectomy due to the suspicion of malignancy and 2 cases in a child and a young adult, who responded to oral steroids. We report the case of a 10-year-old who presented to A&E with a 9-month history of epigastric abdominal pain and 1 episode of haematemesis, on a background of asthma. He was treated for Helicobacter pylori, based on a positive stool antigen. Abdominal pain and vomiting persisted, therefore an oesophago-gastro-duodenoscopy (OGD) was performed. This identified widespread white plaques throughout the oesophagus, erythema and nodularity of the gastric antrum and white nodules in the first part of the duodenum. Histology revealed changes of EGID and eosinophilic oesophagitis (EOE) and patient was commenced on Montelukast, oral viscous Budesonide (OVB), Cetirizine and continued proton pump inhibitor (PPI). After the allergy workup identified house dust mites, cat sensitisation and fish allergy, a 6-food elimination diet was initiated. During the next 2 years, symptoms subsided, and endoscopy changes improved, with only mild signs of active EOE while on OVB, PPI and diary/egg/fish free diet. However, the patient relapsed due to poor compliance to treatment. He became more unwell during the Covid pandemic with recurrent vomiting and static weight. A trial of dupilumab was considered, however his reassessment OGD had to be delayed due to restricted access to theatre. He was treated empirically with a reducing course of oral prednisolone, with temporary response. The endoscopic assessment performed subsequently showed erythema, erosions and white plaques in the distal oesophagus and gastric antrum with narrowing between the first and the second part of the duodenum (D2), that could not be entered. Histology identified mild upper oesophagitis (4 eosinophils (eos)/HPF), active middle and lower oesophagitis (20 eos/HPF and 12 eos/HPF, respectively), chronic gastritis (80 eos/HPF) and nonspecific reactive changes of the proximal duodenum. A barium meal confirmed a duodenal stricture. At this stage, we recommended a sloppy diet and a second weaning course of oral prednisolone, along with Montelukast. He was subsequently commenced on azathioprine for maintenance of remission. A repeat barium study and small bowel MRI performed post course of steroids and on azathioprine revealed stable appearances of the proximal duodenal stricture, excluding the presence of further strictures. While the patient has responded to the course of oral steroids and azathioprine, a repeat upper GI endoscopy is currently planned to dilate the duodenal stricture. The challenges posed by this case were the rarity of the condition, limited treatment options and access to endoscopy during the Covid pandemic and the fact that unlike previous case reports a sustained remission could not be obtained on steroids, and a maintenance immunosuppressive medication was required. We can conclude that this subgroup of patients should be monitored closely for signs of bowel obstruction and will require more intense treatment, including immunomodulators, endoscopic dilatation and or surgery.

Clinical characteristics and risk factors for mortality in patients with COVID-19: A retrospective nationwide study in Malaysia

Background: Age and multiple comorbidities have been reported to influence the case fatality rate of COVID-19 worldwide, so also in Malaysia;however, to date, no scientific study among the local population has been published to confirm this. This study aimed to determine the overall demographics and clinical characteristics of COVID-19 non-survivors in Malaysia, stratified by age (< 65 vs. >= 65 years old). The mortality was also compared between two half-year periods: March-August 2020 and September 2020-March 2021. Method(s): Daily reports containing demographics and medical history of COVID-19 non-survivors from March 2020 to March 2021 were obtained from the Malaysian Ministry of Health website. All information was extracted retrospectively and analysed using descriptive and inferential statistics with SPSS. Result(s): Of 1192 COVID-19 non-survivors, the overall mean (SD) age was 64.8 (15.7) years, with 64.7% male. Death was seen mostly among 50- to 64-year-olds (33.1%) and 65- to 74-year-olds (24.8%). The presence of underlying hypertension (61.8%) and diabetes mellitus (48.2%) were the most common comorbid diseases encountered in the COVID-19 non-survivors. Underlying hypertension, stroke, heart disease and dyslipidaemia were significantly higher among COVID-19 non-survivors who were >= 65 years old compared to those < 65 (p < 0.05). Mortality was a lot higher in September 2020-March 2021 compared to March 2020-August 2020 (91.3% vs. 8.3%). Conclusion(s): Older age, male gender and the presence of multimorbidity (hypertension, diabetes mellitus, stroke and heart disease) are risk factors that contribute to mortality due to COVID-19 in Malaysia, especially among those >= 65 years old. Copyright © The Author(s) 2022.

Patient-reported access to telehealth: An important and unmeasured social determinant of health

Background: The recent COVID-19 pandemic expanded opportunities for remote oncology telehealth visits. However, reliable internet connectivity, digital literacy, and patient comfort with virtual medical visits may differ among patients, especially socially disadvantaged groups. The primary aim of this study was to identify patient demographics and social determinants of health (SDOH) which might limit access to remote telehealth services. Method(s): First, a retrospective analysis was performed of composite administrative data of all patient visits to a large regional cancer center over the COVID-19 pandemic (3/2020-4/2022). Second, a prospective, crosssectional study was conducted of patients with known or suspected malignancy presenting to the same center over six-months (11/2021-5/2022). Participants were asked a standard set of survey questions regarding telehealth accessibility during an in-person clinic visit. Demographics and SDOH were ed from the electronic health record (EHR). Result(s): Although Black patients comprised 43% (n=9,021) of all patient visits (n=20,953), the proportion of telehealth visits conducted among Black patients (29%;n=889) was significantly lower compared to White patients (71%, n=2,142, p<0.0001). Within the cross-sectional study cohort (n=149), 51% (n=76) were Black, 39% (n=58) resided in a rural county, and 8.7% (n=13) were uninsured or Medicaid-insured. Black participants were more likely to self-report lack of internet access (73.7% vs. 90.4%, p<0.01) and were less likely to report having access to or actively using a patient portal in the EHR compared to White patients (47.4% and 79.5%, respectively;p<0.001). Rates of self-reported access to videocapable devices (82.9% vs. 90.4%) and confidence in conducting video visits without assistance (59.2% vs. 68.5%) were similar among Black and White patients (p>0.05). The most common selfidentified challenge to telehealth usage among both races was limited digital literacy. Conclusion(s): Black patients disproportionally under-participated in telehealth visits, suggesting underlying structural disparities in access to digital care. A greater proportion of Black participants self-reported lack of internet access and access to a patient portal to the EHR compared to White patients. Ensuring equal internet access and digital literacy will be critical to reduce further disparities in cancer care among racial minorities.

Severity and Mortality of Covid-19 in Patients with Diabetes Mellitus

Background: Covid-19 infection appeared as rapidly spreading cases of acute respiratory disease in Wuhan city of China that became pandemic. It was brought to the notice of WHO on December 31, 2019. Diabetes mellitus is one of the biggest health problems and fast growing emergencies of the 21st century. Diabetic patients with who got infected with Covid-19 have more chance of in hospital treatment need, intensive care unit care requirement, intubation and death. Objective(s): The objective of this study was to know the severity and mortality of covid-19 in patients with diabetes mellitus. Study Design: This was a descriptive case series study. Study Setting: It was done in the Covid-19 isolation and ICU unit of Ayub Teaching Hospital Abbottabad from May 2020 to October 2021. Method(s): Using non-probability consecutive sampling, 189 diabetic patients were enrolled. Sample included all covid-19 patients having diabetes that received indoor treatment during this period. All patients from both genders with age > 18 years were included. Patients with malignancy or on immunosuppressants for more than 1 month were excluded. Patients who were maintaining oxygen saturation at room air/facemask/nasal prongs were labelled as having non-severe disease while patient who needed CPAP or assisted ventilation were labelled as having severe covid-19 disease. All patients who died during admission were documented as covid-19 related mortality. Patients were labelled as diabetic who were known diabetic and taking diabetes treatment. Data was collected on a structured pro forma. Statistical program SPSS version 16.0 was used for the analysis of data. Result(s): In this study, mean age was 61.29 +/- 11.73 years. There were 40.2% male and 59.8% female patients. 86.2% patients were not-vaccinated, 3.7% patients were partially vaccinated and 10.1% patients were fully vaccinated. Hypertension was most common comorbidity (42.3%) and only CKD was significantly associated with increased mortality. 43.92%patients had non-severe illness while 56.08% patients had severe illness. The overall mortality of illness was 48.15% while it was 84.9% in patients with severe illness. Practical implication: These published publications provide a variety of various estimations and impact amounts due to the numerous different study designs and demographics. A comprehensive and methodical study is required because of the unpredictability of the situation. So that we conducted this study to assess the severity and mortality of covid-19 in patients with diabetes mellitus Conclusion(s): Our study concluded that severity and mortality of covid-19 was high in diabetic patients with high fasting & random sugar levels, pack smoking years and low oxygen saturation. Copyright © 2022 Lahore Medical And Dental College. All rights reserved.

Herbs for Heart: Benefits for Post-Covid Cardiac Protection

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-caused coronavirus disease 2019 (COVID-19) pandemic, which began in early December 2019, has spread quickly over the world and presented an unprecedented threat to human health. The disease is characterized by cytokine storm, resulting in endothelial inflammation/dysfunction, micro- and macro-vascular thrombosis, which may damage organs other than the lung. COVID-19 substantially impairs the cardiovascular system. According to the study published in the journal Nature Medicine, patients with COVID-19 were more likely to have a wide range of cardiovascular conditions. Thus, one of the most useful tools in the therapeutic management of post-covid cardiovascular illnesses will be cardio-protection and treatment. Despite improvements in CVD management and therapy, CVDs continue to claim more lives than other cancer types combined. As a result, there has been significant enforcement of CVD prevention in recent years. Since ancient times, people have used herbs to treat cardiovascular conditions. The journal of Clinical Phytoscience published an article in 2021 that used cluster analysis to choose 128 plants. These herbs effectively protected the heart. This study and subsequent analysis revealed that herbal remedies like Arjuna, Tribulus, and Tinospora have potent cardioprotective characteristics. The evidence for these herbs' cardiovascular protection is highlighted in the current review.

Diverse Presentation of Mucormycosis: A Post COVID Catastrophe - A Case Series

The corona virus disease-19 (COVID-19) produced by SARS-CoV-2 has resulted in a wide spectrum of illness ranging from mild to life-threatening conditions thus enhancing the incidence of opportunistic infections among individuals harbouring comorbidities. Mucormycosis is a dreadful angio-invasive opportunistic infection produced by zygomycetes fungus in an immunocompromised host. The clinical manifestations of mucormycosis include rhino-orbital-cerebral (ROC), pulmonary, cutaneous, gastrointestinal, with ROC accounting for around 40% of cases. Diabetes, neutropenia, iron overload, cancer, and organ transplant are all major culprits. Both Aspergillus and Candida have been identified as the primary fungal pathogens causing co-infection in COVID-19 preyed individuals. The most predominant variety, Rhizopus Oryzae, is responsible for roughly 60% of mucormycosis infections in humans, as well as 90% of the Rhino-orbital-cerebral (ROCM) variant. Mucormycosis is the most widespread ailment in India. Until lately, India was declared to be the world's diabetes capital, with the second-largest number of people suffering from diabetes mellitus (DM). Diabetes has been recognised as the most common predictive marker for mucormycosis which explains the dramatic rise in Mucor cases in India lately particularly during second wave of COVID-19. The inflammatory onslaught caused by COVID 19 has debilitated patients' immune systems, making individuals vulnerable to mucormycosis outbreaks. The possible explanation that Mucorales spores appear to be expediting germination in people with COVID-19 is due to the perfect scenario of oxygen deprivation (hypoxia), hyperglycemia (steroid-induced), acidic form of media (metabolic acidosis, diabetic ketoacidosis), increased iron levels (elevated ferritin), and significantly reduced phagocytic activity of white blood cells (WBC) due to immunosuppression (SARS-CoV-2 or steroid mediated or associated comorbidities). Copyright © 2022 International Medical Sciences Academy. All rights reserved.

Age-related changes in the immune system and the consequences of immunosenescence

The cellular and molecular hallmarks of aging include genomic instability, telomere attrition, epigenetic alterations, changes in intracellular signaling, cellular senescence, and mitochondrial dysfunction. These lead to complex remodeling and changes involving both the innate and adaptive immune systems. Besides age related changes in immune cells, the microenvironment in the lymphoid and non-lymphoid organs, as well as circulating factors interacting with the immune system also contribute to immunosenescence. Overall, immunosenescence is characterized by reduction of immune response, an increase in inflammatory and oxidation background (inflamm-aging), and production of autoantibodies. One of the most prominent age-related changes in the adaptive immune system is the decline in regenerative thymic capacity. Similar aging related defects have also been observed in stroma of the bone marrow. While lymphocytes in infants show a naive phenotype, memory phenotype predominates after midlife. Though immune responses against recall antigens may still be conserved, the ability to mount primary response against novel antigens declines with age. As a result, increased susceptibility to infections, and suboptimal vaccine response is observed in the elderly. Apart from functional alternation in immune cells, there is a low-grade persistent elevation in inflammatory molecules. Inflamm-aging may result from the accumulation of misfold proteins, compromised gut barrier function, chronic infection, obesity, etc. Furthermore, aging is associated with immune dysregulation, with defective resolution of immune response after activation, and impaired clearance of dead cells with sustained inflammation. Excessive inflammation not only impairs antigen specific immunity, but also leads to tissue damage. In fact, this may partly account for the increased mortality of COVID infection in the elderly. Apart from vulnerability to infection and weakened vaccine response, immunosenescence also plays an important role in cancer and autoimmunity in the elderly. Because of increased tissue damage and apoptosis, coupled with inflamm-aging, increased autoantibodies production is observed in the elderly. Nevertheless, there is an age-related increase in peripheral regulatory T cells. While there is an increase in autoimmunity with aging, this does not always translate into an increase in autoimmune disease. On the other hand, the increase in regulatory T cells, along with other immunosuppressive cells and the senescence associated proinflammatory environment, promotes tumor development and progression in the elderly. As immunosenescence has a significant impact on health and disease, better understanding on this process is crucial for research and development in the future geriatric health care.

Dermatomyositis following SARS-CoV- 2 2 vaccination

Purpose: To report a case of a 51-year- old male who developed dermatomyositis following the second dose of coronavirus disease (COVID-19) vaccine. Method(s): Case report Result: Case: We report a case of 51-year- old male who developed erythematous maculopapular rash on the upper anterior chest and upper back along with symmetric proximal muscle weakness two months after receiving his second dose of CoronaVac vaccine. His symptoms were followed by edema in the periorbital area which later involved the upper and lower extremities. He had dysphagia and weight loss. He had no known family history of autoimmune diseases. Physical examination revealed macular erythema over the lower anterior neck and upper back. Heliotrope rash and hyperkeratotic pink scaly papules on bilateral lateral second digits (mechanic's hands) were seen. Symmetric proximal muscle weakness in the upper and lower extremities was objectified. Blood tests showed elevated muscle enzymes (total CK: 3899 U/L, CK MB mass: 15.4 ng/mL, LDH: 683, AST: 232 U/L, ALT: 66 IU/L) elevated ESR (36) and normal CRP. Anti Jo 1 and anti U1 RNP were negative. Work up for systemic infection, thyroid function and malignancy were unremarkable. Diagnosis: Diagnosis of dermatomyositis was made based on clinical history and physical exam findings of symmetric proximal weakness, presence of heliotrope rash, V sign and shawl sign. Laboratory tests revealed elevated total CK, CK MB mass, LDH, AST, ALT and ESR consistent with an inflammatory myositis. Intervention(s): Hydrocortisone 1 mg/kg/day was started. Azathioprine was commenced on the 3rd hospital day. Ethical consideration: Informed consent for both written and photographic content was secured and patient confidentiality was observed. Conclusion(s): This case highlights the possible association between COVID 19 vaccine and this rare autoimmune disease. We hypothesize that among patients with genetic predisposition, the possibility of vaccines triggering and unmasking an autoimmune event is possible. (Figure Presented).

Pandemic effects on social capital and loneliness in residents and non-residents of Chinese immigrant enclaves in Philadelphia

The COVID-19 pandemic profoundly affected cancer prevention behaviors and cancer care. Social capital is also thought to affect cancer prevention and care, with some observed improvements in well being and survival among cancer patients. Residents of immigrant enclaves are thought to have more social capital than non-residents, potentially buffering against negative effects of the pandemic. We compared residents and non-residents of Chinese immigrant enclaves in Philadelphia with respect to their social capital and loneliness and change in these factors from before to during the pandemic. Participants were 520 Chinese immigrant men and women aged 3565 y. Baseline interviews conducted 9/18-01/20 included questions on residence and demographics, structural and cognitive social capital (short version of the Adapted Social Capital Assessment Tool (SASCAT)), and a validated 3-item loneliness scale. The SASCAT includes questions on membership in neighborhood groups, receiving support from specific individuals (e.g., family, neighbors, friends), and cognitive social capital representing perceived levels of trust and belonging in the neighborhood. In May-July 2020, 419 participants completed a follow-up interview that included the SASCAT and loneliness scales. Participants were categorized as residing in a traditional, emerging, or non-enclave neighborhood depending on the ethnic density of their census tract and adjacent tracts. At baseline there were no significant differences in social capital or loneliness across neighborhood types. During the pandemic, participants regardless of neighborhood type reported declines in group membership (18% baseline vs. 11% pandemic) and loneliness (25% vs. 12%), and increases in cognitive social capital (85% vs. 99%) and receiving support from individuals (35% vs. 69%) (all p<0.001). However, extent of change differed by neighborhood, resulting in significantly less loneliness among residents of traditional enclaves (5%) than in emerging (14%) and non-enclave (16%) residents (p=0.02) during the pandemic. Multivariate analyses using generalized estimating equation models indicated that residents of traditional enclaves experienced a larger decrease in loneliness than other participants (interaction p=0.009), and that residents of traditional and emerging enclaves experienced a larger increase in cognitive social capital than residents of non-enclaves (interaction p=0.03). Our findings provide evidence that while the pandemic may have effected declines in group membership in this sample of Chinese immigrants, it was associated with increases in other forms of social capital and with a decrease in loneliness, particularly among enclave residents. These findings suggest the importance of clarifying how social capital derived from interacting within an immigrant enclave might be leveraged to counter the effects of a community stressor such as the COVID-19 pandemic, and used towards positive cancer outcomes in these communities.

A Review of Phytochemistry and Pharmacology on Moringa Oleifera

Natural extracts have been of very interest since ancient times due to their enormous medicinal use and research attention. Moringa oleifera is well known as miracle tree as it consists of high nutritive values. Originally from India is widely distributed in many tropical regions, in the pacific region, west Africa as well as central America. India is the major supplier of Moringa worldwide, accounting for around 80% of global demand. It is a multipurpose plant cultivated for medicinal applications. It contains rich sources of Vit- A, B1, B2, B3 and C, It also has calcium, potassium, iron, magnesium, zinc and phospherus. Moringa species contain various phytoconstituents such as alkaloids, saponins,tannins, steroids.phenolic acids( gallic, vanillic and p-coumaric acids) and flavanoids(catechin), tocopherol ,glucosinolates and terpenes. Investigations of ethanol extract of the leaves gives lutein, B-carotene,phytyl fatty acids, esters, poly phenols, B- sitosterols,triglycerols,fatty acids and saturated hydrocarbons. Leaves were obtained by super critical extraction with CO2 using ethanol as a cosolvent, temperature 35-80 0C.The phenolic acids( gallic, vanillic and p- coumaric acids) and flavanoids(catechin) were identified in all extracts. Extracts obtained at 35 degrees shows the highest values of total phenolic compounds. The activities of plant include Anti-oxidants, anti-cancer, anti-microbial, anti-viral,anti- hyperglycemic,anti-hyperlipidemic,anti-inflammatory,anti-hypertension, anti-spasmodic and others. Due to covid-19 pandemic, the global Moringa products market size is estimated to be worth USD 5167.2 million in 2022. Leaf powder is expected to exceed USD 6 billion by 2025 on account of increasing demand in the dietary supplement and food applications.