Topic > Causes, detection and treatment of leishmaniasis

IntroductionDiseases are sorted into transferable (or irresistible) and non-transferable forms, where each has its distinctive causes and is transmitted unexpectedly. One of the main contrasts between these two types is that transferable diseases can be transmitted from one individual to another, although in the case of non-transferable diseases they do not infect the next individual. Another significant contrast is transmission vehicles where vectors play an essential role in disease transmission while neighborhood conditions, dietary habits and lifestyle are also important in causing non-communicable diseases. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay Leishmania are intracellular protozoan parasites that are transmitted by the sandfly vector and infect mammalian phagocytes for intracellular replication. About 20 types of Leishmania have been recorded to have affected more than 12 million people worldwide. Skin lesions were reported to be the most common. A key requirement for the parasite are specific receptors on macrophages. The most widely considered receptors for Leishmania phagocytosis are the third supplement receptor (CR3). The first supplement receptor (CR1) is the mannose receptor (MR), the Fc receptor (FcR), and the fibronectin receptors (FnR). In any case, understanding these receptors is important to understand the characteristics of the contamination. Leishmania are intracellular protozoan parasites that are transmitted by the sandfly vector and are taken up by phagocytes for intracellular replication. A particular receptor is formed on the host macrophage which effectively helps in its attachment. The most examined receptors for Leishmania phagocytosis are the third supplement receptor (CR3), the first supplement receptor (CR1), the mannose receptor (MR), the Fc receptors (FcR), and the fibronectin receptors (FnR ). The role of these receptors and how they relate to parasite survival is not fully understood. Leishmania parasites have a place in the kingdom of protists, in the class kinetoplastea, in the subclass Metakinetoplastina, in the family Trypanosomatidae, in the subfamily Leishmania and in the genus Leishmania. A wide range of leishmaniases are transmitted by parasitic female sandflies, Phlebotominae. About 700 species of sandflies have been depicted and grouped into six genera. Three of these genera have been found in the New World (Warileya, Lutzomyia, and Brumptomyia) and three (Phlebotomus, Chinius, and Sergentomyia) in the Old World. Of these six genera, Lutzomyiah and Phlebotomus are responsible for the transmission of Leishmania. Leishmania can be transmitted without these genera, for example events due to casual laboratory contamination or blood transfusion. As indicated by Killick-Kendrick (1990) and Young and Arias (1991), 88 Lutzomyiah and 39 Phlebotomus types have been established as vector transmitters of Leishmania. Sandflies are found in arid and semi-dry territories. Sandflies can therefore be found in arid and semi-arid areas (e.g. in mouse dividers and tunnels) and in rainforests (e.g. in openings in tree trunks or leaf litter). Sandflies are 1.3 to 3.5 mm long with dark to dark shading. They are described by their thick furry wings which are held in an upright V shape on the body. Male and female sandflies can be recognized by the conspicuous correspondence of the clasps towards the end of the male viscera while for the female the mouthparts are altered to cut the skin of the vertebrates. THESandflies breed in dark, damp regions, for example in mouse tunnels and leaf litter. The female sand fly is the main transmitter of the Leishmania parasite as it feeds on the blood of vertebrates for the development of the eggs and also on plant juices, sap and honeydew. The male sand fly feeds on plant juices, sap and honeydew but not blood. Sandflies jump instead of flying. Female sandflies have been discovered compared to males, perhaps due to their larger appearance. Female sandflies have been discovered in areas such as rodent tunnels, partitions and animal covers. Such situations provide the heat and viscosity necessary for the egg-laying stages of sandflies. The improvement of sandflies can be characterized in four main stages: egg, larvae, pupae and adult. Female sandflies lay 80 to 100 eggs of normal size of 0.3-0. 4 mm on different surfaces. The young feed for a period of about two weeks. As a result, sandflies progress to the pupal stage and begin to transform into a caterpillar with the development of wings and eyes. After about five to ten days, the adult sandfly stands up and is ready to munch. Adult female sandflies are most dynamic at sunset. Low humidity, high temperatures and ocean conditions stimulate the birth of young. Female sandflies breed in areas with high relative humidity, for example on the banks of streams or near water tanks. I completed a study in Bihar, India, and found that stream banks were the best natural environment for sandflies to rest and breed and discover large numbers of their young. studied 79 water wells in Greece and found that 37 of them harbored sandflies. Likewise, conceivable environments for sandflies in the state of Bahia, Brazil were examined. Their results showed that the highest thickness of sandflies was collected in areas near water reservoirs. Leishmaniasis are vector-borne infections caused by Leishmania, which affect various warm-blooded animals, mainly carnivores. Clinical patent disease is generally simple to analyze by finding the parasite in clinical specimens. In subclinical cases, the parasite is recognized using delicate methods. Several atomic strategies have been produced and evaluated, including multilocus compound electrophoresis, polymerase chain response (PCR)-based assays, quantitative real-time PCR, and further rearranged PCR techniques. Approximately 30 species of Leishmania have been discovered, of which 20 are considered infectious to humans. The ability to recognize Leishmania species is fundamental for distinguishing the different types of disease (instinctive, cutaneous, mucocutaneous). The Leishmania parasite exchanges between crawling and vertebrate hosts, with interspecies transmission occurring through the bite of the female sand fly. It is zoonotic or anthroponotic depending on the types of Leishmania parasites involved. In general, there are no less than twenty types of Leishmania parasites that contaminate people with the same type. There are four basic types of leishmaniasis caused by Leishmania parasites which are: visceral (VL), cutaneous (CL), diffuse cutaneous (DCL). and MCL mucocutaneous leishmaniasis. VL has been considered the most extreme form of leishmaniasis if not treated quickly and effectively. It has a great effect on numerous parts of the body and the real side effects are enlargement of the spleen and liver, dramatic weight loss, change in skin color, pancytopenia. This problem is found in the dry area of ​​the Mediterranean and South America, in Africaeastern China, the Indian subcontinent and some parts of the Middle East. CL causes changes in skin color and pancytopenia. CL is the most common leishmaniasis that causes lesions on exposed parts of the body. It is cured and the contamination often resolves in a couple of months leaving permanent scars. It is clear that leishmaniasis is a widespread infection and affects a large number of countries, mostly in tropical and subtropical areas. The life cycle of Leishmania includes crawling (midges) and vertebrate stages. The life cycle begins when the female sandfly sucks blood and infuses the body with the promastigote, which attacks selected host cells, mainly macrophages. Promastigotes transform into amastigotes inside macrophages. Amastigotes duplicate cells and attack characteristic tissues, sandflies suck blood and ingest amastigotes with it. In the midgut of the sand fly, the parasites transform into promastigotes. These promastigotes move into the proboscis, so the cycle begins again. Leishmaniasis is a worldwide infection, known to affect 88 nations. According to WHO (2013c) and El-Beshbishy (2013) 90% of CL cases occur in Afghanistan, Algeria, Brazil, Iran, Peru and Saudi Arabia, while 90% of VL cases occur in Bangladesh, India, Nepal, Sudan and Brazil. Despite the fact that sandflies are found primarily in warm climate zones of the world, their dispersal extends from north to southwestern Canada. The primary causative agents are anthroponotic cutaneous leishmaniasis (ACL) and zoonotic cutaneous leishmaniasis (ZCL). CL disease is endemic in the Khorasan Razavi Territory and other nearby urban communities. Amid (2014), reported 68958 cases of CL in Mashhad city. ACL appeared to be the most imperative endemic contamination. Species identification is crucial for choosing the best possible treatment for different types of contamination and for controlling the disease in an area. The coordinated strategy is the most important system used for patients suffering from Leishmania lesions. Many distinctive PCR targets, including coding and noncoding intergenic areas of the gp63 locus, exon (SLME), and SSU rRNA, have been used for parasite recognition. PCR is believed to be the most effective technique for diagnosing leishmaniasis. There are treatment methods for cutaneous leishmaniasis that include physical methods, for example, using infrared, solidification or electrotherapy method. Drugs that may be used include antimony mixtures and hypertonic NaCl. Topical aids are also used for treatment. These treatment strategies are used when sores are present. The fundamental treatment of cutaneous leishmaniasis is demonstrated when several sores are present. There is no effective treatment for CL. In any case, these drugs are expensive and could be related to various genuine reactions. Ketoconazole, a broad-spectrum antifungal, is thought to be effective in CL. However, the prolonged time of these drugs is expensive and could be related to various genuine symptoms. Ketoconazole, a broad-spectrum antifungal, has been used in CL. Treatment sometimes causes potential hepatotoxicity. Curettages are significantly less demanding and are less uncomfortable for the patient. After the wounds are cleansed with water, 1% lidocaine anesthesia is administered and tissue is obtained by curettage for skin testing. A curettage is performed to obtain enough exudate for the test. The dermal tissue is then fixed onto a glass slide. Biopsy is the primary strategy for distinguishing conditions other than leishmaniasis andfor skin lesions that are not ulcerative. For a lesion, a surgical blade is used to evacuate some tissue from the edge of the lesion, the tissue is then spread on the glass slide. These slides are stained with Giemsa and can be seen under the microscope. Biopsy tissue should be taken from the edge of the ulcer to incorporate both necrotic and suitable tissue. The tissue can also be stained with hematoxylin and eosin, which, in many examples, is sufficient to highlight amastigotes. All slides should be analyzed using the oil immersion objective. Most amastigotes are round to oval and measure 2-3 µm in most cases. Amastigotes contain a thin cell layer, a cytoplasm, a nucleus, and a kinetoplast patterned at one pole. To distinguish an amastigote, each of these 4 structures must be present. Preventing people from interacting with sandfly living spaces is relatively inconceivable. This is basically due to the wide variety of environments of the sandflies and also the high flexibility of the sandflies towards other new territories. What makes maintaining a strategic distance from sandflies much more difficult is the lack of awareness that people and sandflies are getting closer. Sandflies are present in human settlements, in urban areas and inside homes. Settlements and urban development may attack some normal sandfly living spaces, thus providing greater opportunities for sandflies in endemic territories. Given the challenges in sandfly control and the availability of prophylactic antibodies against any type of leishmaniasis, vector control remains the best method to control the disease. These control measures must be practiced by controlling vectors (sandflies) and rodents. Chloroquine is an antiprotozoal drug used in intestinal disease that has much fewer reactions when used with antimony mixtures. In a pilot investigation of 10 patients, intralesional chloroquine. Chloroquine has been used in the treatment of cutaneous leishmeniasis. Zinc sulfate represses the development of promastigotes of both L. major and L, tropica in vitor. Zinc sulfate helps in the improvement of cutaneous leishmeniasis sores. The viability of zinc against both promastigotes and amastigotes of the two types of cutaneous leishmeniasis has been studied and the immunomodulatory effects of zinc may also represent the prophylactic part of zinc against cutaneous leishmeniasis. Pentavalent antimonials, meglumine antimoniate (Glucantime), and sodium stibogluconate (Pentostam) are the primary line of treatment used to treat leishmaniasis. It makes sense to treat wounds as they can persist for some time leaving unattractive scars. Despite the fact that antimony is the main treatment, it is a slightly lethal drug. This has led numerous specialists to try different medications, such as hypertonic sodium chloride solution, zinc sulfate, and metronidazole. Excellent results have been obtained using ciprofloxacin, furthermore some topical drugs have also been used for experimental studies on BALB/c mice contaminated by L. major. Ketoconazole is an antifungal drug that works primarily by repressing the catalyst of cytochrome P450 14-alpha-demethylase (P45014DM). It has a attenuating action on 5-lipoxygenase and also has an impact on steroids. The drug with zinc sulfate and ketoconazole for rapid improvement is used as an antifungal drug. The antileishmanial effect of ketoconazole in disturbing the transport of protozoan layers by blocking the proton pump could be enhanced by the addition of zinc sulfate. The anti-leishmania effect of zinc is very important..