Occurrence of Sphingomonas olei with elemental S oxidation capability in sodic soil: Potential role in sodicity reclamation and plant growth promotion.

The success of the sodic soil reclamation using elemental S (S°) depends on the population of the native S° oxidizers. Augmenting the native flora of the sodic soils with effective S° oxidizers can enhance the success of the sodic soil reclamation. Present study reports for the first time the S° oxidation potential of the Sphingomonas olei strain 20UP7 isolated from sodic soils with pHs 9.8 and ECe 3.6 dS m-1. Inoculation with S. olei strain 20UP7 caused 13.0-24.2 % increase in S° oxidation in different sodic soils (pHs 9.1-10.5). It improved the concentration of the Ca2+, Mg2+, PO43- and declined the HCO3- and total alkalinity of the soil solution. This isolate also showed appreciable P and Zn solubilization, indole acetic acid, ammonia, and titratable acidity production in the growth media. It tended to the formation of biofilm around sulphur particles. The PCR amplification with gene-specific primers showed the occurrence of soxA, soxB, and soxY genes with a single band corresponding to length of 850, 460, and 360 base pairs, respectively. The integration of the S. olei strain 20UP7 with S° caused 21.7-25.4 % increase in the rice and wheat yield compared to the soil treated with S° alone. This study concludes that the S. olei, native to high saline-sodic soils can be utilized for improving the sodicity reclamation and plant growth promotion using elemental S based formulations.

Characterization of flue gas desulphurized (FGD) gypsum of a coal-fired plant and its relevant risk of associated potential toxic elements in sodic soil reclamation.

Thermal Power Plant generates FGD gypsum as by-product during coal combustion. This study evaluates the characterization (spectroscopic and elemental), potentially toxic elements (PTEs) distribution, and environmental risk assessment of FGD gypsum for safe and sustainable use in agriculture. The XRD and SEM analysis confirmed the dominance of crystalline CaSO4·2H2O in FGD gypsum. The order of concentrations of PTEs in FGD gypsum was Fe > Al > Mn > Zn > Ni > Co. The residual fraction was the dominant pool, sharing 80-90% of the total PTEs. The heavy metals (HMs) were below the toxic range in the leachates. The Co, Ni, Al, Fe Mn, Zn had low (< 10%) risk assessment code and the ecotoxicity was in the range of 0.0-7.46%. The contamination factor was also low (0.0-0.16) at the normal recommended doses of FGD gypsum application for sodicity reclamation. The enrichment factor was in the order of Al < Mn < Co < Zn < Ni. Mn [enrichment factor (Ef) 1.2-2.0] and Co (Ef 1.7-2.8) showed negligible enrichment of metals, whereas Ni (Ef 4.3-5.2) and Zn (Ef 4.5-5.6) reported moderate accumulation in soil. The application of FGD gypsum @ 10 t ha-1 for sodicity reclamation will develop a geo-accumulation index below the critical values indicating its safe and sustainable use to achieve land degradation neutrality (LDN) and UN's Sustainable Development Goals.

Needs assessment for introducing pulmonary rehabilitation for chronic obstructive pulmonary disease management in a rural Indian setting: a qualitative study.

BACKGROUND: Pulmonary rehabilitation (PR) is an effective strategy to improve breathlessness, health status and exercise tolerance and to reduce readmissions and mortality. In India, there is no government health programme for chronic obstructive pulmonary disease (COPD) management while in the private sector availability of PR is limited. Most PR centres are in urban areas, with few services accessible to rural populations. We aimed to assess the need for PR from the perspective of patients with COPD and healthcare professionals (HCPs: registered medical practitioners and medical officers) in rural Maharashtra. METHODOLOGY: Between June and October 2020, we conducted semi-structured interviews with 14 patients with COPD and 9 HCPs to explore their perceptions of, and need for, PR in rural Maharashtra. Interviews were transcribed and analysed thematically. RESULTS: We approached 14 patients with COPD and 9 HCPs practising in rural areas. Five HCPs stated that they did not advise PR for patients with COPD citing poor compliance to PR referral and follow-up of the patients. Patients with COPD had symptoms and needs that could be helped by PR but commented how transportation would be a problem for them to visit a PR centre. In contrast, they could understand the benefits of PR and expressed their willingness to join such programmes. A PR service was established that addressed these needs. CONCLUSION: Patients with COPD have unmet needs that could benefit from attending a PR programme, but there are barriers at both healthcare and patient levels that we addressed in a new PR service for people with chronic respiratory disease in rural Maharashtra.

Seroprevalence of SARS-CoV-2 specific Immunoglobin G antibodies in rural population of Western Maharashtra, India.

Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, responsible for the coronavirus disease 2019 (COVID-19) pandemic, has been a major public health concern requiring continuous efforts for understanding its epidemiology. Patients infected with SARS-CoV-2 have a wide range of clinical features ranging from asymptomatic infection to mild or severe illness with fatal outcomes or recovery. Population-based seroepidemiological studies are an effective method for measuring the rapid spread of SARS-CoV-2 and monitoring the pandemic's progress. Methods: We conducted repeated cross-sectional community-based sentinel surveillance between January and June 2021 in the rural parts of the Pune district of Maharashtra, India to assess the seroprevalence against SARS-CoV-2 in three age categories. We selected 30 clusters for each round using a proportional population sampling method and 30 individuals in each of the three age groups (1-17 years, 18-49 years, and ≥50 years). We took blood samples from consenting study participants to check for the presence of Immunoglobulin G (IgG) antibodies against SARS-CoV-2 in all five rounds. Results: We included 14 274 individuals across five rounds; 29% were from the 1-17, 39% from the 18-49, and 32% from the ≥50-year-old group. Overall seroprevalence combining all rounds was 45%. There was an increase in seropositivity in rounds four (51.15%) and five (58.32%) contributed mostly by adults. We found that about 72% of elderly individuals ≥50 years in round five were seropositive. The factors strongly associated with the seropositivity were being in contact with suspected or confirmed cases of COVID-19 (odds ratio (OR) = 7.15; 95% confidence interval (CI) = 4.2-12.14), receiving at least one dose of COVID-19 vaccine (OR = 3.13 (95% CI = 0.70-14.07), being aged ≥50 years (OR = 1.97; 95% CI = 1.81-2.15), and being in an occupation belonging to a high-risk category (OR = 1.92; 95% CI = 1.65-2.26). Among 135 hospitalizations reported due to COVID-19-like illness, 91 (67%) were in the elderly age group of ≥50 and 33 (24%) were in the 18-49-year-old age group. Conclusions: Seroprevalence of SARS-CoV-2 was high in the last two rounds (April to June 2021) which coincide with the second wave of the pandemic (Delta variant B.1.617.2) in India. Overall, one in three children and one in two adults had antibodies for SARS-CoV-2. The suspected or confirmed case of COVID-19 emerged as the significant factor strongly associated with the seropositivity followed by COVID-19 vaccination.

Correlation between Pulp Stones and Gall Bladder Stones: A Radiographic Retrospective Case-Control Study.

BACKGROUND: Calcifications can occur in the dental pulp as discrete bodies known as pulp stones. Their etiology remains obscure. They were believed to be formed as a result of local irritating factors within the pulp; however, a few authors now suggest that they may be a part of systemic biomineralization process that affects many body parts such as kidneys, gall bladder, joints, arteries as well as pulp leading to formation of stones. AIM: This retrospective case-control study was taken up to (i) determine the prevalence of pulp stones as well as pulp chamber narrowing in patients with gallbladder stones as well as the controls (ii) whether any correlation exists between the prevalence of pulp stones and gallbladder stones so as to test the hypothesis that pulp stones and gallbladder stones may be a part of a common systemic calcification process. SETTING AND DESIGN: This retrospective case-control study was conducted in the Department of Gastroenterology and Department of Radiodiagnosis, Sri Guru Ram Das Institute of Medical Sciences and Research, Amritsar. A total of 200 individuals were taken up for the study. Group I consisted of 100 patients (cases) with confirmed diagnosis of gallbladder stones. Group II included the control group in which individuals who were the close relatives of the patients with gall bladder stones were taken (n = 100), so as to eliminate the common confounding factors in these two groups such as diet, air, water, environment, genes, and age, which could affect the formation of pulp stones could not be the reason for the formation of pulp stones. MATERIALS AND METHODS: Standard bitewing radiographs were taken for all the patients in each group and presence or absence of pulp chamber narrowing and pulp stones were observed. STATISTICAL ANALYSIS USED: McNemar's statistical test was used to find the difference between the two groups, and the P value was determined. Coefficient of association using the Phi coefficient was used to determine if there was any association between the two groups. RESULTS: In Group I, 37% of the patients with gallbladder stones showed the presence of pulp stones; whereas in the Group II which was the control, 57% of individuals showed the presence of pulp stones. McNemar's test of significance calculated with one-degree freedom (1-df) showed that P = 0.01, thereby showing that there was a significant difference between these two groups. CONCLUSION: According to the study, a negative correlation between pulp stones and gallbladder stones was found and they are not related to each other.

Neuropathic Pain models caused by damage to central or peripheral nervous system.

Neuropathic Pain (NP) is a painful condition which is a direct consequence of a lesion or disease affecting the somatosensory system with symptoms like allodynia, hyperalgesia. It has complex pathogenesis as it involves several molecular signaling pathways, thus numerous reliable animal models are crucial to understand the underlying mechanism of NP and formulate effective management therapy. Some models like spinal cord injury, chronic constriction injury, spinal nerve ligation, chemotherapy induced peripheral neuropathy, diabetes-induced NP and many more are discussed. This review contains an overview of the procedures followed to induce neuropathy and specific characteristics of that particular model. Some new techniques like spared nerve ligation, have omitted the limitation of methods not presently used where complete nerve damage occurs. Since animal models provide a window to experienced symptoms and physiology and impact the translation of bench discoveries to the bedside, the reporting, interpretation and comparison of these models is necessary because slight variation in procedure of model generation can drastically alter the results. The development of novel, but rational analgesic drugs to alleviate this intractable pain demands elucidation of molecular mechanisms of NP for which different types of animal models have been established.