Silver incorporated SeTe nanoparticles with enhanced photothermal and photodynamic properties for synergistic effects on anti-bacterial activity and wound healing.

Bacteria invade the host's immune system, thereby inducing serious infections. Current treatments for bacterial infections mostly rely on single modalities, which cannot completely inhibit bacteria. This study evaluates the therapeutic potential of SeTe-Ag NPs, designed with excellent photo responsiveness, with a particular focus on their dual-action antibacterial effect and wound healing properties. SeTe-Ag NPs exhibited promising synergistic antibacterial effects due to their superior photothermal and photodynamic properties. The investigation records substantial zones of inhibition of bacteria, demonstrating potent antibacterial effect. Furthermore, upon the irradiation of near-infrared (NIR) light, SeTe-Ag NPs exhibit remarkable antibiofilm and wound-healing capabilities. Overall, this study shows the applications of NIR-active SeTe-Ag NPs, which serve as a versatile platform for biomedical applications.

NIR light-activated nanocomposites combat biofilm formation and enhance antibacterial efficacy for improved wound healing.

Nanoparticle-based therapies are emerging as a pivotal frontier in biomedical research, showing their potential in combating infections and facilitating wound recovery. Herein, selenium-tellurium dopped copper oxide nanoparticles (SeTe-CuO NPs) with dual photodynamic and photothermal properties were synthesized, presenting an efficient strategy for combating bacterial infections. In vitro evaluations revealed robust antibacterial activity of SeTe-CuO NPs, achieving up to 99% eradication of bacteria and significant biofilm inhibition upon near-infrared (NIR) irradiation. Moreover, in vivo studies demonstrated accelerated wound closure upon treatment with NIR-activated SeTe-CuO NPs, demonstrating their efficacy in promoting wound healing. Furthermore, SeTe-CuO NPs exhibited rapid bacterial clearance within wounds, offering a promising solution for wound care. Overall, this versatile platform holds great promise for combating multidrug-resistant bacteria and advancing therapeutic interventions in wound management.

Genomic Exploration: Unraveling the Intricacies of Indica Rice Oryza sativa L. Germin-Like Protein Gene 12-3 (OsGLP12-3) Promoter via Cloning, Sequencing, and In Silico Analysis.

Germin and Germin-like proteins (GLPs) are a class of plant proteins that are part of the Cupins superfamily, found in several plant organs including roots, seeds, leaves, and nectar glands. They play a crucial role in plant defense against pathogens and environmental stresses. Herein, this study focused on the promoter analysis of OsGLP12-3 in rice cultivar Swat-1 to elucidate its regulation and functions. The region (1863bp) of the OsGLP12-3 promoter from Swat-1 genomic DNA was amplified, purified, quantified, and cloned using Topo cloning technology, followed by sequencing. Further in silico comparative analysis was conducted between the OsGLP12-3 promoters from Nipponbare and Swat-1 using the Plant CARE database, identifying 24 cis-acting regulatory elements with diverse functions. These elements exhibited distinct distribution patterns in the 2 rice varieties. The OsGLP12-3 promoter revealed an abundance of regulatory elements associated with biotic and abiotic stress responses. Computational tools were employed to analyze the regulatory features of this region. In silico expression analysis of OsGLP12-3, considering various developmental stages, stress conditions, hormones, and expression timing, was performed using the TENOR tool. Pairwise alignment indicated 86% sequence similarity between Nipponbare and Swat-1. Phylogenetic analysis was conducted to explore the evolutionary relationship between the OsGLP12-3 and other plant GLPs. Additionally, 2 unique regulatory elements were modeled and docked, GARE and MBS to understand their hydrogen bonding interactions in gene regulation. The study highlights the importance of OsGLP12-3 in plant defense against biotic and abiotic stresses, supported by its expression patterns in response to various stressors and the presence of specific regulatory elements within its promoter region.

Predicting Superficial Surgical Site Infections: A Study of the Risk Factors and an Assessment Scale From Western India.

Introduction Superficial surgical site infections (SSSIs) are very common nosocomial infections that can complicate a range of surgeries, resulting in increased morbidity and mortality, and an overall decreased benefit of surgical interventions, along with exorbitant expenditure of healthcare resources. An assessment scale could help in the segregation of the high-risk patient population, and appropriate resources could be directed toward them. Methods A prospective observational study was carried out in a tertiary care hospital in Western India with 200 participants. Certain probable preoperative, intraoperative, and postoperative risk factors for SSSIs were assessed for significance of association, and each patient was given a score according to the assessment scale. The predictive power of the scale was calculated. Results Body mass index (BMI), preoperative laboratory investigations, and preoperative hospital stay showed a significant association with the complication. Clean-contaminated wounds had a higher incidence of postoperative SSSIs as compared to clean wounds. Postoperatively, fever and the presence of open drains predisposed the patient to complications. The assessment scale was found to have a positive predictive value of 40.94% and a negative predictive value (NPV) of 86.30%. Conclusion The factors that could significantly prevent the development of SSSIs are normal preoperative laboratory investigations, less than three days of preoperative hospital stay, and avoiding the use of open drains. The high NPV of the assessment scale means that it can be used as a screening tool to segregate high-risk patients.

Utility of Cupping Therapy in Substance Use Disorder: A Novel Approach or a Bizarre Treatment?

Substance use disorder is a psychiatric problem not bound by age, sex, ethnicity, sexual preference, geography, socio-economic status, educational level, or political and religious ideologies. While robust pharmacotherapy and psychotherapy treatments are available for de-addiction and managing withdrawal symptoms, patients from rural areas and lower socio-economic classes often prefer alternative medicine. Cupping therapy is one such ancient practice used mainly for organic physical conditions. A patient addicted to alprazolam, codeine, and tobacco presented to our psychiatry outpatient department for de-addiction and management of his withdrawal symptoms. He came to seek professional help after a trial of cupping therapy by an alternative medicine practitioner, which did not improve his condition. His withdrawal symptoms subsided after standard treatment. As found in this case, cupping therapy is not beneficial in treating substance use disorder or managing withdrawal symptoms. Awareness of the utility and consequences of cupping therapy and other alternative therapies is required to promote rational scientific treatments. Substantial reforms in health promotion and health education are required to educate the general population regarding the most effective treatments available, and the risks of iatrogenesis associated with traditional cures that are not evidentially backed.

Overreliance on Radiological Findings Leading to Misdiagnosed Giant Retroperitoneal Ganglioneuroma: A Case Report and Literature Review.

Ganglioneuroma is a rare, benign, well-differentiated neurogenic tumor most commonly located in the posterior mediastinum or retroperitoneum. Giant ganglioneuromas are even less common; this is only the 19th reported case in literature to date. We present a case of a giant retroperitoneal ganglioneuroma in a five-year-old child, which on imaging mimicked a mesenteric cyst and posed various challenges in its management. Histopathology later confirmed our misdiagnosis and revealed the tumor to be a ganglioneuroma. This unique case serves as a lesson for clinicians to not operate before receiving histopathological confirmation of their diagnosis.

Ataxia-Telangiectasia: A Case Report and a Brief Review.

Ataxia-telangiectasia (A-T) is a rare inherited syndrome that primarily presents as ataxia due to cerebellar involvement and dilated capillaries in the oculocutaneous region. But many more serious complications of the condition exist, due to which both the quality and length of life are severely affected. Some of these include opportunistic infections due to an abnormal immune system, various malignancies, and an increased sensitivity to ionizing radiation. Due to the involvement of multiple systems in the body, diagnosis of this condition could be tricky as it may manifest with uncommon signs like dystonic head movements seen in our case. We have presented the case of a 16-year-old male born out of a consanguineous marriage, with the major symptoms of walking difficulties, frequent falls, and jerky movements of the head. Similar or related complaints had been noted in the past in his siblings. Laboratory investigations revealed elevated levels of serum alpha-fetoprotein, while the confirmatory diagnosis was made by genetic testing of the ataxia-telangiectasia mutated (ATM) gene. The patient was treated with amantadine and clonazepam, along with speech therapy, but the prognosis remained poor due to the lack of curative treatment for A-T.

In silico mutagenesis-based designing of oncogenic SHP2 peptide to inhibit cancer progression.

Cancer is among the top causes of death, accounting for an estimated 9.6 million deaths in 2018, it appeared that approximately 500,000 people die from cancer in the United States alone annually. The SHP2 plays a major role in regulation of cell growth, proliferation, and differentiation, and functional upregulation of this enzyme is linked to oncogenesis and developmental disorders. SHP2 activity has been linked to several cancer types for which no drugs are currently available. In our study, we aimed to design peptide inhibitors against the SHP2 mutant. The crystal structure of the human Src SH2-PQpYEEIPI peptide mutant was downloaded from the protein databank. We generated several peptides from the native wild peptide using an in silico mutagenesis method, which showed that changes (P302W, Y304F, E306Q, and Q303A) might boost the peptide's affinity for binding to SHP2. Furthermore, the dynamical stability and binding affinities of the mutated peptide were confirmed using Molecular dynamics simulation and Molecular Mechanics with Generalized Born and Surface Area Solvation free energy calculations. The proposed substitution greatly enhanced the binding affinity at the residue level, according to a study that decomposed energy into its component residues. Our proposed peptide may prevent the spread of cancer by inhibiting SHP2, according to our detailed analyses of binding affinities.

Liver Involvement in Individuals with Obesity: A Cross-sectional Study from Western India.

BACKGROUND: Obesity is a largely neglected health problem in developing countries which leads to additional morbidities including nonalcoholic fatty liver disease (NAFLD), one of the most important causes of chronic liver disease. Central obesity is intricately related to the pathogenesis of the NAFLD, which over time could result in a fiogenic response and end-stage liver disease. We have attempted to study the association of various risk factors and laboratory investigations with the incidence of liver involvement in obese individuals. MATERIALS AND METHODS: A cross-sectional study of 210 patients was carried out in a tertiary care center in Western India. Patients above 18 years of age with either general or abdominal obesity were included and their history taking and general and systemic examination was done along with laboratory investigations and ultrasonography for visualize any liver involvement. RESULTS: Age >50 years, female gender, postmenopausal state, sedentary lifestyle, high body mass index (BMI), waist circumference (WC), and neck circumference were all risk factors for liver involvement in obese individuals. Raised C-reactive protein (CRP), serum glutamic-oxaloacetic transaminase (SGOT), triglycerides, low density lipoprotein (LDL), cholesterol, fasting blood sugar (FBS), 2-hour postprandial blood sugar (PP2BS), and low high density lipoprotein (HDL), serum protein, and albumin were significantly associated with liver disease. Patients having high NAFLD fiosis and BMI, aminotransferace ratio and diabetes (BARD) scores, or Metabolic syndrome (MS) was at a higher risk for liver disease. CONCLUSION: Advancing age, postmenopausal females, and lack of physical activity are risk factors for liver disease in obesity. Raised CRP and SGOT along with impaired lipid profile and glycemic control could be used as markers for fatty liver in obese individuals. MS greatly increases the risk of liver involvement in obese individuals.

A Triad of Trichobezoar: Rapunzel Syndrome, Severe Malnutrition, and Cerebral Venous Thrombosis.

Trichobezoar is a rare condition almost exclusively seen in young females presenting with non-specific abdominal complaints and a history of psychiatric illness. In most patients, it is confined within the stomach; however, in some severe cases, it extends through the pylorus into the duodenum, jejunum, ileum, or even colon, known as Rapunzel syndrome. Conventional treatment includes laparotomy and psychiatric counseling to prevent relapses. We report the case of an 18-year-old female with no previous history of medical or psychiatric illness who presented with chief complaints of upper abdominal pain, nausea, occasional vomiting for the last six months, and generalized edema for the last three days. On examination, pallor, anasarca, and a palpable abdominal lump were present. On blood investigations, severe malnutrition was seen in the form of severe iron deficiency anemia and severe protein deficiency. Radiological evaluation revealed a large trichobezoar on the CT abdomen and endoscopy, whereas CT venography of the brain, done for persistent headache, showed hyperdense thrombi in the cortical veins. Exploratory laparotomy was done to remove trichobezoar, followed by medical management of malnutrition, cerebral venous thrombosis (CVT) with anticoagulants, and psychiatric counseling for trichobezoar. The association between trichobezoar, malnutrition, and CVT in our case is a further area of research.

Iron Status in Sickle Cell Anemia: Deficiency or Overload?

Background Sickle cell anemia (SCA) is a hereditary disease with defective hemoglobin (Hb) synthesis causing severe hemolytic anemia, pain crisis, and target organ damage. In SCA, several factors independently or in combination lead to derangement in iron stores. Some centers incorrectly prescribe iron therapy on the presumption that SCA would be associated with iron deficiency, but it is not always the case. This study attempts to evaluate the iron status in SCA patients and records the target organ damage present. Methodology A single-center cross-sectional study of 180 patients with sickle cell disease was carried out at a tertiary-care center in Western India. Patients >12 years of age were included in the study after confirming SCA using high-performance liquid chromatography (HPLC). The iron status of each patient was identified and patients were labeled as iron sufficient based on the following values: Hb (8.1-12 gm%), serum iron (S. iron) level (50-150 µg/dl), serum ferritin (S. ferritin) (50-200 ng/ml), and total iron binding capacity (TIBC) (251-450 µg/dl). The iron status of patients with different target organ damage was also analyzed. Results Demographic data revealed that 21-30 years was the most common age group affected by SCA along with a male preponderance. The most common presenting complaint was joint pain (68.9%), the most common sign was pallor (64.4%), most patients had a history of pain crisis (95.6%), and half of the patients had organomegaly (51.1%). Most of the patients had no complications, however, for those who did, hepatopathy (28.9%) was the most common. Conclusion While the majority of patients were iron sufficient, a considerable number had either iron deficiency or iron overload states, which emphasizes the necessity of investigating the iron status before deciding the course of treatment in SCA patients. Although the majority were unaffected, screening for end-organ damage should be carried out in all SCA patients.

Clinical Profile and Outcome of Critically-ill Hospitalized COVID-19 Patients Aged 18-50 Years: A Limited Resource Setting Perspective.

OBJECTIVES: The coronavirus disease of 2019 (COVID-19) pandemic started by affecting the older age groups with comorbidities but gradually advanced to severely affect even young adults. This study attempts to clinically evaluate critically ill young and middle-aged adults hospitalized with COVID-19 and study the association of risk factors and the markers of inflammation and coagulation with their outcome. MATERIALS AND METHODS: A prospective observational study on 146 patients was conducted in a tertiary care hospital in Western India. History taking, clinical examination, laboratory investigations, and chest X-rays were done for all patients, and investigations were repeated after 3 days. Treatment, including ventilation, was given according to standard guidelines. RESULTS: Difficulty in breathing was the most common chief complaint, and the majority of patients had a normal body temperature on admission. Involvement of >2 lung zones on chest X-ray, a high neutrophil to lymphocyte (N/L) ratio, the presence of complications, raised D-dimer and serum ferritin, and invasive ventilation were all associated with higher mortality. While the presence of a single comorbidity did not affect the outcome, a combination of multiple comorbidities increased the mortality. CONCLUSION: The presence of multiple comorbidities and complications along with radiological abnormalities and raised D-dimer and serum ferritin are associated with critically ill COVID-19 patients and may indicate a higher risk of mortality. Administration of remdesivir has no significant influence on the outcome, but tocilizumab decreases the mortality. The inflammatory markers scoring system has utility in the prognosis of patients, especially in limited-resource settings.

Association of Mean Platelet Volume With Vascular Complications in the Patients With Type 2 Diabetes Mellitus.

Background Diabetes mellitus (DM) is a global health concern that is predicted to involve over 10% of the adult population by the next decade. Vascular complications are the major source of mortality and morbidity in diabetics. Mean platelet volume (MPV) which indicates platelet activity may play a crucial role in the vascular effects of DM and, hence, can be used as a prognostic marker. We have attempted to study the association of MPV with the glycemic status, duration of diabetes, and presence of vascular complications in diabetics. Methods A cross-sectional study of 300 patients with type 2 DM aged ≥18 years admitted to the inpatient department of medicine was carried out in a tertiary care hospital. After subgrouping patients according to their glycemic status and MPV, the association between microvascular and macrovascular complications was studied. Results The majority of patients were >60 years of age and an increasing prevalence of vascular complications was noted with increasing age. Forty-six percent and 45% of the patients had microvascular and macrovascular complications, respectively. Ischemic heart disease (IHD) and retinopathy were the most common macrovascular and microvascular complications, respectively. Vascular complications in DM showed a significant association with MPV, fasting blood sugar (FBS), post-prandial blood sugar (PP2BS), glycated hemoglobin (HbA1c), and the duration of diabetes. Conclusion A high MPV was linked to poor glycemic control, a longer duration of diabetes, and an increased prevalence of vascular complications. Hence, MPV could be used as a cost-effective marker to predict vascular complications in patients with type 2 DM.

Functionalization of Se-Te Nanorods with Au Nanoparticles for Enhanced Anti-Bacterial and Anti-Cancer Activities.

The use of medical devices for therapeutic and diagnostic purpose is globally increasing; however, bacterial colonization on therapeutic devices can occur, causing severe infections in the human body. It has become an issue for public health. It is necessary to develop a nanomaterial based on photothermal treatment to kill toxic bacterial strains. Appropriately, high photothermal conversion and low-cost powerful photothermal agents have been investigated. Recently, gold nanocomposites have attracted great interest in biological applications. Here, we prepared rod-shaped Se-Te@Au nanocomposites of about 200 nm with uniform shape and surface-coated with gold nanoparticles for the first time showing high anti-bacterial and anti-cancer activities. Se-Te@Au showed proper structural consistency and natural resistance to bacterial and cancer cells. The strong absorption and high photothermal conversion efficacy made it a good photothermal agent material for the photothermal treatment of bacterial and cancer cells. The Se-Te@Au rod showed excellent anti-bacterial efficacy against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus, with highest recorded inhibition zones of 25 ± 2 mm and 22 ± 2 mm, respectively. More than 99% of both types of strains were killed after 5 min with a near-infrared (NIR) laser at the very low concentration of 48 µg/mL. The Se-Te@Au rod's explosion in HeLa cells was extensively repressed and demonstrated high toxicity at 100 µg/mL for 5 min when subjected to an NIR laser. As a result of its high photothermal characteristics, the exceptional anti-bacterial and anti-cancer effects of the Se-Te@Au rod are considerably better than those of other methods previously published in articles. This study could open a new framework for sterilization applications on the industrial level.

Recent advances in biological activities of lignin and emerging biomedical applications: A short review.

As an abundant biopolymer, lignin gains interest owing to its renewable nature and polyphenolic structure. It possesses many biological activities such as antioxidant activity, antimicrobial activity, and biocompatibility. Studies are being carried out to relate the biological activities to the polyphenolic structures. These traits present lignin as a natural compound being used in biomedical field. Lignin nanoparticles (LNPs) are being investigated for safe use in drug and gene delivery, and lignin-based hydrogels are being explored as wound dressing materials, in tissue engineering and 3D printing. In addition, lignin and its derivatives have shown the potential to treat diabetic disease. This review summarizes latest research results on the biological activities of lignin and highlights potential applications exampled by selective studies. It helps to transform lignin from a waste material into valuable materials and products.

Recent Advances in the Surface Functionalization of Nanomaterials for Antimicrobial Applications.

Innovations in nanotechnology have had an immense impact on medicine, such as in drug delivery, tissue engineering, and medical devices that combat different pathogens. The pathogens that may cause biofilm-associated nosocomial diseases are multidrug-resistant (MDR) bacteria, such as Escherichia coli (E. coli), Pseudomonas aeruginosa (P. aeruginosa), Staphylococcus aureus (S. aureus), including both Gram-positive and Gram-negative bacterial species. About 65-80% of infections are caused by biofilm-associated pathogens creating a move in the international community toward developing antimicrobial therapies to eliminate such pathogenic infections. Several nanomaterials (NMs) have been discovered and significantly employed in various antipathogenic therapies. These NMs have unique properties of singlet oxygen production, high absorption of near-infrared irradiation, and reasonable conversion of light to heat. In this review, functionalized NPs that combat different pathogenic infections are introduced. This review highlights NMs that combat infections caused by multidrug-resistant (MDR) and other pathogenic microorganisms. It also highlights the biomedical application of NPs with regard to antipathogenic activities.

Identification and characterization of thermophilic amylase producing bacterial isolates from the brick kiln soil.

The present experiment was designed to isolate bacterial strains from the brick kiln soil and to check the activity and enzyme kinetics of amylase from these isolates. The bacterial colonies were isolated from soil samples through the serial dilution method. The bacterial isolates were identified through morphological, electron microscopic and molecular analysis. The 16S ribosomal RNA sequences of the isolates IR-1, IR-2, IR-3, IR-8, and IR-9 showed high similarities with Bacillus tequilensis, Bacillus paramycoides, Proteus alimentorum, Bacillus wiedmannii, and Pseudomonas aeruginosa, respectively. All of the bacterial isolates showed a positive catalase activity except IR-9. Furthermore, the isolates showed variable antagonistic effects against different bacterial pathogens. All of the strains produced indole acetic acid (IAA), and the concentrations increased in the presence of tryptophan application. The isolates showed the amylase enzyme activity and maximum activity of isolates was achieved in 4% starch concentration. The IR-9 isolate showed the highest amylase activity of 5.9 U/ml. The V max values of the extracellular amylase from different bacterial isolates ranged between 12.90 and 50.00 IU ml-1. The lowest K m value of 6.33 mg starch was recorded for IR-8 and the maximum K cat value of 2.50 min-1 was observed for IR-3. The amylase activity of the isolates was significantly affected by a range of different incubation time, temperature, and pH values. Further tests are required before the potential utilization of these isolates for amylase production, and in the biopesticide and biofertilizer applications.