Traditional methods of purification (detoxification process) for Schedule E poisonous drugs

740-748Medicinal plants have different types of active phytochemicals, which are still in use, either in their crude form or after proper processing. Though most of the plant drugs are safe, few are poisonous and may cause immediate toxic effect or cumulative toxic effect for human health. There are 25 poisonous or toxic plants in Siddha texts listed in the Schedule E of Drugs and Cosmetics Act 1940. The concept of Suthimuraigal in Siddha not only covers the process of purification and detoxification of physical and chemical impurities but also minimizes the side effects and improves the potency/therapeutic efficacy of the purified drugs. The aim of this review is to perceive the importance of the Schedule E drugs through their immense uses to treat diseases and to flourish the knowledge of purification processes to detoxify the poisonous elements, thus enhancing and utilizing them in curing challenging diseases. The distinct purification methods mentioned in Ayurvedic journals have also been reviewed for possible information. Methods of Suthi are variable and some of the important Siddha Suthimuraigal are reviewed in this paper. The traditional methods of purification may combat the toxic effects like ulceration, swelling, giddiness, skin rashes, pruritis also, thus enhancing the efficacy of the drugs in healing various ailments. Since these poisonous plants have very high potential to treat diseases, the chemical changes which transpired during the Suthi are to be revealed in further studies such as quantitative and qualitative analysis after their purification before they are applied in medicines

Traditional methods of purification (detoxification process) for Schedule E poisonous drugs

Medicinal plants have different types of active phytochemicals, which are still in use, either in their crude form or after proper processing. Though most of the plant drugs are safe, few are poisonous and may cause immediate toxic effect or cumulative toxic effect for human health. There are 25 poisonous or toxic plants in Siddha texts listed in the Schedule E of Drugs and Cosmetics Act 1940. The concept of Suthimuraigal in Siddha not only covers the process of purification and detoxification of physical and chemical impurities but also minimizes the side effects and improves the potency/therapeutic efficacy of the purified drugs. The aim of this review is to perceive the importance of the Schedule E drugs through their immense uses to treat diseases and to flourish the knowledge of purification processes to detoxify the poisonous elements, thus enhancing and utilizing them in curing challenging diseases. The distinct purification methods mentioned in Ayurvedic journals have also been reviewed for possible information. Methods of Suthi are variable and some of the important Siddha Suthimuraigal are reviewed in this paper. The traditional methods of purification may combat the toxic effects like ulceration, swelling, giddiness, skin rashes, pruritis also, thus enhancing the efficacy of the drugs in healing various ailments. Since these poisonous plants have very high potential to treat diseases, the chemical changes which transpired during the Suthi are to be revealed in further studies such as quantitative and qualitative analysis after their purification before they are applied in medicines

Study of metastasis in lymph node by fine needle aspiration cytology: our institutional experience

Background:Fine needle aspiration cytology (FNAC) is a reliable as well as an inexpensive diagnostic method. It is suitable for the developing countries for the diagnosis of lymphadenopathy at any approachable site. Fine needle aspiration cytology not only confirms the presence of metastatic disease but also, in most cases, gives the clue regarding the origin of the primary tumor, prognosis as well in the management of patient for staging purposes. The aim of the study was to detect and diagnose metastasis in lymph nodes. Methods:A study was done of all metastatic lymph node lesions reported in Department of Pathology, Govt. Medical College, Surat from May 2011 to April 2012.Results:A total of 2355 cases of fine needle aspiration cytology were carried out of which 580 cases were of lymph node. Cytology results were positive for metastasis in 157 specimens (27.06%). The most common site was cervical lymph nodes. Maximum numbers of cases of metastatic tumors were in 41-50 yrs age group. There were 115 males and 42 females with a male predominance (Male:Female= 2.8:1). The most common malignancy was squamous cells carcinoma, seen in 118 cases (75.15%), followed by metastatic mammary carcinoma (13 cases, 8.29%). In 26 cases out of 580 cases, histopathological confirmation was done and diagnostic accuracy of FNAC was 100%. Conclusions:Fine needle aspiration cytology of lymphadenopathy is a useful tool in diagnosing metastatic lesions with good certainty

Effect of monocular sensitivity on binocular summation of luminance-modulated flicker

Binocular summation of luminance contrast signals in the spatial domain has been investigated in many studies, but less attention has been paid to the analogous interactions in the temporal domain. The present study determined the impact of monocular sensitivity on the binocular detection of luminance-modulated flickering stimuli. Binocular summation ratios (BSRs) were determined in 13 visually-normal adults for a range of monocular flicker modulation thresholds (FMTs), generated by changing stimulus size (7'- 60') and luminance (mesopic and photopic). Monocular and binocular FMTs were measured at the point of regard and in each of the four quadrants at 5° eccentricity for each target size and luminance using the Flicker-Plus test. Monocular and binocular FMT's increased with decreasing target size for all retinal locations (p0.12). The results demonstrate that the visual system successfully summates inputs from the two eyes to enhance flicker detection, independent of their absolute monocular detection thresholds. These findings may serve as a predictive baseline for further experiments designed to determine how other stimulus properties and interocular differences in monocular thresholds may affect the binocular perception of flicker

Report on egg mass of Hound needle fish Tylosurus crocodilus

During an oceanographic cruise of ICAR-CMFRI on board FV Silver Pompano on November 2021, a bunch of pale-yellow spherical egg consisting of about thousand numbers connected by strong filaments on the chorion were obtained while undertaking experimental trawling in off Kochi region at 20-meter depth (Fig 1). After taking photographs and enumeration of the egg bunch, a small sub sample was taken for further analysis and the remaining eggs were released back into the sea immediately. The collected egg samples were preserved in 95% ethanol and brought to lab for further analysis. Preserved eggs were observed and photographed in the lab by Nikon SMZ 25 stereo zoom microscope

The role of social networks in students’ learning experiences

The aim of this research is to investigate the role of social networks in computer science education. The Internet shows great potential for enhancing collaboration between people and the role of social software has become increasingly relevant in recent years. This research focuses on analyzing the role that social networks play in students’ learning experiences. The construction of students’ social networks, the evolution of these networks, and their effects on the students’ learning experience in a university environment are examined

Melanoma central nervous system metastases: current approaches, challenges, and opportunities

Melanoma central nervous system metastases are increasing, and the challenges presented by this patient population remain complex. In December 2015, the Melanoma Research Foundation and the Wistar Institute hosted the First Summit on Melanoma Central Nervous System (CNS) Metastases in Philadelphia, Pennsylvania. Here, we provide a review of the current status of the field of melanoma brain metastasis research; identify key challenges and opportunities for improving the outcomes in patients with melanoma brain metastases; and set a framework to optimize future research in this critical area

Genetic Analysis of HIV-1 Subtypes in Nairobi, Kenya

Background: Genetic analysis of a viral infection helps in following its spread in a given population, in tracking the routes of infection and, where applicable, in vaccine design. Additionally, sequence analysis of the viral genome provides information about patterns of genetic divergence that may have occurred during viral evolution. Objective: In this study we have analyzed the subtypes of Human Immunodeficiency Virus -1 (HIV-1) circulating in a diverse sample population of Nairobi, Kenya. Methodology: 69 blood samples were collected from a diverse subject population attending the Aga Khan University Hospital in Nairobi, Kenya. Total DNA was extracted from peripheral blood mononuclear cells (PBMCs), and used in a Polymerase Chain Reaction (PCR) to amplify the HIV gag gene. The PCR amplimers were partially sequenced, and alignment and phylogenetic analysis of these sequences was performed using the Los Alamos HIV Database. Results: Blood samples from 69 HIV-1 infected subjects from varying ethnic backgrounds were analyzed. Sequence alignment and phylogenetic analysis showed 39 isolates to be subtype A, 13 subtype D, 7 subtype C, 3 subtype AD and CRF01_AE, 2 subtype G and 1 subtype AC and 1 AG. Deeper phylogenetic analysis revealed HIV subtype A sequences to be highly divergent as compared to subtypes D and C. Conclusion: Our analysis indicates that HIV-1 subtypes in the Nairobi province of Kenya are dominated by a genetically diverse clade A. Additionally, the prevalence of highly divergent, complex subtypes, intersubtypes, and the recombinant forms indicates viral mixing in Kenyan population, possibly as a result of dual infections