53 research outputs found
Non-Electrochemical Study of Mild Steel Corrosion Inhibition in Sulphuric Acid Solution by Using the Cuscuta Reflexa Extract
The anticorrosive effect of Cuscuta reflexa Roxb. extract (CRRE) on the mild steel corrosion in 0.5 M H2SO4 employing weight loss measurements. Weight loss measurement shows that inhibitor exhibited the best inhibition efficiency of 92.58 at optimum concentration. The inhibition action of inhibitor is discussed in view of blocking the metal electrode surface by mean of adsorption of the indicator molecules following the Langmuir adsorption isotherm. Scanning electron microscopy (SEM) displays that the inhibitor formed protective film over the mild steel surface. Weight loss measurement as well as SEM, indicate that CRRE can efficiently protect the mild steel from corrosion in 0.5 M H2SO4. Keywords: Adsorption · Corrosion inhibition · Mild steel · CRR
Acute pancreatitis in pregnancy: a case report
Acute pancreatitis is a rare event, can be associated with a high maternal mortality and fetal loss with an incidence of 3 in 10,000 pregnancies. A 24 years old primigravida with 28 weeks of gestation, presented with pain in upper abdomen since 4 days and nausea, vomiting and fever sine two days, abdomen distended and tenderness present in epigastric region. Serum amylase and lipase were raised. Sonography abdomen showed pancreas bulky with peripancreatic free fluid and inflammatory changes suggestive of pancreatitis. Patient was managed condervatively and was discharged to home after 7 days. Regular follow up was done till 36 weeks and emergency cesarean delivery was done in view of non-reassuring fetal heart rate at 36 weeks 3 days of gestation. Early diagnosis of acute pancreatitis in pregnancy and supportive treatment with maternal and fetal monitoring results in good perinatal outcome. The treatment of pancreatitis in pregnancy should be conservative as far as possible with delaying the definitive treatment until delivery of the baby
New HIV Infection Estimation from Program Data of Key Populations
In India, HIV sentinel surveillance is carried out to estimate the prevalence of HIV for calibrating the response. However, estimate of new HIV infections is also needed to monitor the effectiveness of prevention strategies. We used Targeted Intervention Program data of Injecting Drug Users (IDUs) and Female Sex Workers (FSWs) enrolled in Targeted Intervention (TI) programme in Aizawl district of Mizoram state to estimate the trend in new HIV infection rate. Those who had tested HIV positive in a particular year but were negative in the previous HIV test were considered to be newly infected. New HIV infections were found to have a rising trend from 2010 to 2019 (p<0.01). The new infection rate of HIV was 6.73% among IDUs and 1.94% among FSWs in 2019. This analysis, which requires minimal resources, may be undertaken at regular interval in all Targeted Intervention Programs to monitor the effect of preventive strategies at local level
Sporotrichosis in Sub-Himalayan India
Sporotrichosis is endemic in the Sub-Himalayan belt, which ranges from the northern to the north-eastern Indian subcontinent. Similar to many parts of the developing world, sporotrichosis is commonly recognized clinically in this region however consolidated epidemiological data is lacking. We report epidemiological, clinical and microbiological data from a hundred culture positive cases of sporotrichosis. Out of 305 clinically suspicious cases of sporotrichosis, a total of 100 isolates were identified as Sporothrix schenckii species complex (S. schenckii) on culture. Out of the culture proven cases 71% of the cases presented with lymphocutaneous type of lesions while 28% had fixed localized type and 1% had disseminated sporotrichosis. Presentation with lesions on hands was most frequently seen in 32% with arm (23%) and face (21%) in that sequence. The male to female ratio was 1∶1.27. Age ranged from 1 ½ years to 88 years. Mean age was 43.25 years. Disease was predominantly seen in the fourth to sixth decade of life with 58% cases between 31 and 60 years of age. Since the first report from the region there has been a steady rise in the number of cases of sporotrichosis. Seasonal trends reveal that most of the patients visited for consultation in the beginning of the year between March and April. This is the first study, from the most endemic region of the Sub-Himalayan belt, to delve into epidemiological and clinical details of such a large number of culture proven cases over a period of more than eighteen years which would help in the understanding of the local disease pattern of sporotrichosis
Brain temperature monitoring in newborn infants:Current methodologies and prospects
Brain tissue temperature is a dynamic balance between heat generation from metabolism, passive loss of energy to the environment, and thermoregulatory processes such as perfusion. Perinatal brain injuries, particularly neonatal encephalopathy, and seizures, have a significant impact on the metabolic and haemodynamic state of the developing brain, and thereby likely induce changes in brain temperature. In healthy newborn brains, brain temperature is higher than the core temperature. Magnetic resonance spectroscopy (MRS) has been used as a viable, non-invasive tool to measure temperature in the newborn brain with a reported accuracy of up to 0.2 degrees Celcius and a precision of 0.3 degrees Celcius. This measurement is based on the separation of chemical shifts between the temperature-sensitive water peaks and temperature-insensitive singlet metabolite peaks. MRS thermometry requires transport to an MRI scanner and a lengthy single-point measurement. Optical monitoring, using near infrared spectroscopy (NIRS), offers an alternative which overcomes this limitation in its ability to monitor newborn brain tissue temperature continuously at the cot side in real-time. Near infrared spectroscopy uses linear temperature-dependent changes in water absorption spectra in the near infrared range to estimate the tissue temperature. This review focuses on the currently available methodologies and their viability for accurate measurement, the potential benefits of monitoring newborn brain temperature in the neonatal intensive care unit, and the important challenges that still need to be addressed
The Extracellular Vesicle Citrullinome and Signature in a Piglet Model of Neonatal Seizures
Neonatal seizures are commonly associated with acute perinatal brain injury, while understanding regarding the downstream molecular pathways related to seizures remains unclear. Furthermore, effective treatment and reliable biomarkers are still lacking. Post-translational modifications can contribute to changes in protein function, and post-translational citrullination, which is caused by modification of arginine to citrulline via the calcium-mediated activation of the peptidylarginine deiminase (PAD) enzyme family, is being increasingly linked to neurological injury. Extracellular vesicles (EVs) are lipid-bilayer structures released from cells; they can be isolated from most body fluids and act as potential liquid biomarkers for disease conditions and response to treatment. As EVs carry a range of genetic and protein cargo that can be characteristic of pathological processes, the current study assessed modified citrullinated protein cargo in EVs isolated from plasma and CSF in a piglet neonatal seizure model, also following phenobarbitone treatment. Our findings provide novel insights into roles for PAD-mediated changes on EV signatures in neonatal seizures and highlight the potential of plasma- and CSF-EVs to monitor responses to treatment
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The Extracellular Vesicle Citrullinome and Signature in a Piglet Model of Neonatal Seizures
Neonatal seizures are commonly associated with acute perinatal brain injury, while understanding regarding the downstream molecular pathways related to seizures remains unclear. Furthermore, effective treatment and reliable biomarkers are still lacking. Post-translational modifications can contribute to changes in protein function, and post-translational citrullination, which is caused by modification of arginine to citrulline via the calcium-mediated activation of the peptidylarginine deiminase (PAD) enzyme family, is being increasingly linked to neurological injury. Extracellular vesicles (EVs) are lipid-bilayer structures released from cells; they can be isolated from most body fluids and act as potential liquid biomarkers for disease conditions and response to treatment. As EVs carry a range of genetic and protein cargo that can be characteristic of pathological processes, the current study assessed modified citrullinated protein cargo in EVs isolated from plasma and CSF in a piglet neonatal seizure model, also following phenobarbitone treatment. Our findings provide novel insights into roles for PAD-mediated changes on EV signatures in neonatal seizures and highlight the potential of plasma- and CSF-EVs to monitor responses to treatment
Sweat gland tumor (Eccrine Porocarcinoma) of scalp: A rare tumor
Eccrine Porocarcinoma is a rare neoplasm arising from sweat glands. It was first described by Pinkus and Mehregan as ′Epidermotropic eccrine carcinoma′. It may occur de novo or as a malignant transformation of an eccrine poroma. It is commonly found in older age group and in the lower extremities. Clinically, it may present as a verrucous plaque, polypoid growth or an ulcerative lesion of long duration. Local recurrence and metastasis to skin, lymphnodes, viscera, and bone may occur. Treatment is wide local excision. Metastatic lesions can be treated with chemotherapy. We report a case of eccrine porocarcinoma of the scalp in a 50 years old female who presented to us with a bosselated, firm, painless, non-tender, freely mobile swelling over left fronto-parietal region of 12 years duration. It was excised and histopathological diagnosis was Eccrine Porocarcinoma. In literature, scalp porocarcinoma is a very rare tumor
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