Recent development in applications of nano-science in incurable diseases: A review

Cancer is one amongst the key causes of mortality worldwide and advanced techniques for medical aid are desperately required. Hence, the most aim of this review is to supply info regarding the engineering in cancer medical aid. The development of novel nano materials and nanocarriers has allowed a serious drive to boost drug delivery in cancer. The major aim of most nanocarrier application has been to safeguard the drug from speedy degradation when general delivery and permitting it to achieve tumour at therapeutic concentration and avoiding drug delivery to traditional site the maximum amount as attainable to scale back ADRs. Nanotechnology is additionally employed in several incurable diseases like HIV, protozoal infection and Alzheimer apart from cancer. Hence, during this review we tend to target many nanotechnologies and improved ways in nanocarrier style for the cancer in addition as many incurable unwellness therapies.

Leishmaniasis in the United States: Emerging Issues in a Region of Low Endemicity

Leishmaniasis, a chronic and persistent intracellular protozoal infection caused by many different species within the genus Leishmania, is an unfamiliar disease to most North American providers. Clinical presentations may include asymptomatic and symptomatic visceral leishmaniasis (so-called Kala-azar), as well as cutaneous or mucosal disease. Although cutaneous leishmaniasis (caused by Leishmania mexicana in the United States) is endemic in some southwest states, other causes for concern include reactivation of imported visceral leishmaniasis remotely in time from the initial infection, and the possible long-term complications of chronic inflammation from asymptomatic infection. Climate change, the identification of competent vectors and reservoirs, a highly mobile populace, significant population groups with proven exposure history, HIV, and widespread use of immunosuppressive medications and organ transplant all create the potential for increased frequency of leishmaniasis in the U.S. Together, these factors could contribute to leishmaniasis emerging as a health threat in the U.S., including the possibility of sustained autochthonous spread of newly introduced visceral disease. We summarize recent data examining the epidemiology and major risk factors for acquisition of cutaneous and visceral leishmaniasis, with a special focus on implications for the United States, as well as discuss key emerging issues affecting the management of visceral leishmaniasis.

Prevalence of gastro-intestinal parasitic infections of cats and efficacy of antiparasitics against these infections in Mymensingh sadar, Bangladesh

Background: Gastro-intestinal parasitic infections in cats is a major concern for public health as they have zoonotic importance. The present research was conducted to determine the prevalence of gastro-intestinal parasitic infection in cats in different areas of Mymensingh Sadar between December, 2018 to May, 2019. Methods: The fecal samples were examined by simple sedimentation and stoll’s ova counting method for detection of eggs/cysts/oocysts of parasites. The efficacy of antiparasitics against the parasitic infections in cats was evaluated. Results: The overall prevalence of gastrointestinal parasites was 62.9% (39/62) and the mixed parasitic infection was 20.9% (13/62). The prevalence of Toxocara cati and Ancylostoma tubaeforme infections were 17.7% and 6.5%, respectively. The prevalence of Taenia pisiformis infection was 3.22%. However, the prevalence of Isospora felis, Toxoplasma gondii and Balantidium coli infections were 4.8%, 3.2% and 6.5%. The prevalence of infection was significantly (P<0.008) higher in kitten than that in adult cat. The efficacy of albendazole, fenbendazole against single helminth infection was 100%. However, the efficacy of the drug was reduced against mixed helminth infection. The efficacy of metronidazole, pyrimithamine plus sulfadoxine was 100% against single protozoa infection but the efficacy of the drug was reduced against mixed protozoal infection. Conclusions: Kittens should be dewormed with effective anthelmintics as they are more vulnerable to parasitic diseases. The T. cati, A. tubaeforme, T. gondii prevalent in cats are zoonotic and owners awareness need to be increased to prevent human infections.

Prevalence of Gastro-Intestinal Parasitic Infections and Efficacy of Antiparasitics Against These Infections in Dogs in Mymensingh Sadar

Gastro-intestinal parasitic infections in dogs represent a major concern in developing countries including Bangladesh. Dogs are important definitive or reservoir hosts for several zoonotic parasites. This study was conducted to determine the prevalence of gastro-intestinal parasites in dogs from different areas of MymensinghSadar. The fecal samples were examined by simple sedimentation and stoll’s ova counting method for detection of eggs/cysts/oocysts of parasites. The overall prevalence of gastrointestinal parasites was 60.00% (51/85) and the mixed parasitic infection was 16.47% (14/85). A total of six species of gastro-intestinal parasites (ova/oocyst) were identified, of them four species were nematode namely,Toxocaracanis (24.7%), Acylostomacaninum (7.05%), Acylostomabraziliense (2.35%), Uncinariastenocephala (2.35%), one species was cestode, Taeniapisiformis (3.52%) and one species was protozoa, Isosporacanis (3.52%). The prevalence of infection was significantly (P<0.02) higher in puppies and young dogs than that in adult dogs. The efficacy of fendnedazole (Bol. Fenvet®), albendazole (Tab. Alben DS®), fenbendazole (Tab. Paraclear®) was 100% effective against single helminth infection. However, the efficacy of mebendazole (Syrup.Mebantrin®) was 25%-50% against mixed helminth infections. The efficacy of metronidazole (Syrup.Amodis®) was 100% against single protozoal infection. So, anthelmintic including albendazole, fenbendazole, mebendazole and metronidazole may be recommended to treat effectively the single infection of helminth and protozoa, respectively, in dogs. Special emphasis should be given to deworm puppies as they are more vulnerable to parasitic diseases. The T. canis, A. caninum, A. braziliense and U. stenocephala prevalent in dogs are zoonotic and have public health impact. Res. Agric., Livest. Fish.7(3): 411-419, December 2020

The status of cryptosporidiosis in Jordan: a review

Background: Cryptosporidium is a waterborne intestinal parasite that causes diarrhoea in low and middle-income countries worldwide. Reports from Mediterranean countries have documented the prevalence of cryptosporidiosis in children at various ages, also among cancer patients, and in cases of chronic kidney disease, haemodialysis, and organ transplant. Untill now, modified-acid staining preceded by stool concentration preparation remains the leading screening diagnostic test for the infection. In Jordan, few studies for cryptosporidiosis have been performed during the last 3 decades. Aims: This paper reviewed the status of cryptosporidiosis in Jordan and tracked recent updates for this emerging protozoal infection among different population groups. Methods: In this study, an online search was conducted on Google Scholar and PubMed databases using the keywords: Jordan, cryptosporidiosis and Cryptosporidium to inspect studies done on this parasite in Jordan. Results: Only 9 articles were identified from 1994 to 2019. These were analysed in terms of population group, demography, clinical history and the diagnostic tools used. Conclusion: Cryptosporidiosis is still neglected in Jordan as indicated by the low number of studies over the last 3 decades and the prevalence is diverse depending on the diagnostic test used and socioeconomic status.

Predators, Disease, and Environmental Change in the Nearshore Ecosystem: Mortality in Southern Sea Otters (Enhydra lutris nereis) From 1998–2012

We compiled findings from 15 years (1998–2012) of southern sea otter (Enhydra lutris nereis) necropsies, incorporating data from 560 animals. Sensitive diagnostic tests were used to detect biotoxins, bacteria, parasites and fungi. Methods to classify primary and contributing causes of death (COD) and sequelae utilized an updated understanding of health risks affecting this population. Several interesting patterns emerged, including identification of coastal regions of high mortality risk for sea otter mortality due to shark bite, cardiomyopathy, toxoplasmosis, sarcocystosis, acanthocephalan peritonitis and coccidioidomycosis. We identified demographic attributes that enhanced the risk of disease in relation to age, sex, and reproductive stage. Death due to white shark (Carcharodon carcharias) bite increased dramatically during the study period and was the most common primary COD. However, when primary and contributing COD were combined, the most prevalent COD was infectious disease (affecting 63% of otters), especially fatal infections by acanthocephalans (Profilicollis spp.) and protozoa (e.g., Sarcocystis neurona and Toxoplasma gondii). Fatal bacterial infections were also extremely common as a primary process or a sequela, affecting 68% of examined otters. Substantial advances were made in identifying sea otters that died following exposure to the pervasive marine neurotoxin domoic acid (DA), and DA intoxication was conservatively estimated as a primary or contributing COD for 20% of otters. Cardiomyopathy was also highly prevalent as a primary or contributing COD (41%) and exhibited significant associations with DA intoxication and protozoal infection. For adult and aged adult females in late pup care through post-weaning at the time of death, 83% had end lactation syndrome (ELS) as a primary or contributing COD. This comprehensive longitudinal dataset is unique in its depth and scope. The large sample size and extensive time period provided an opportunity to investigate mortality patterns in a changing environment and identify spatial and temporal disease “hot spots” and emerging threats. Our findings will help improve estimates of population-level impacts of specific threats and optimize conservation and environmental mitigation efforts for this threatened species.

Virtual Screening of Leishmanial Pyridoxal Kinase Enzyme Inhibitors by Repurposed Anti-Trypanosomal Libraries Reveals Two Core Scaffolds

Leishmania is an intracellular protozoal infection, and it is classified as a neglected disease by the World Health Organization (WHO). Annually more than 2 million newly diagnosed cases were treated with highly toxic drugs. Leishmanial pyridoxal kinase enzyme (LPDxK) is an essential and druggable target. DNDI1103666 is the most promising lead as a potential inhibitor for LPDxK

Virtual Screening of Leishmanial Pyridoxal Kinase Enzyme Inhibitors by Repurposed Anti-Trypanosomal Libraries Reveals Two Core Scaffolds

Leishmania is an intracellular protozoal infection, and it is classified as a neglected disease by the World Health Organization (WHO). Annually more than 2 million newly diagnosed cases were treated with highly toxic drugs. Leishmanial pyridoxal kinase enzyme (LPDxK) is an essential and druggable target. DNDI1103666 is the most promising lead as a potential inhibitor for LPDxK

THE EFFECT OF PLASMODIUM FLORIDENSE ON RELATIVE LEUKOCYTE COUNTS OF ANOLIS SAGREI AND A. CAROLINENSIS IN FLORIDA, USA

Native Green Anoles, Anolis carolinensis, and invasive Brown Anoles, Anolis sagrei, are commonly found in Florida and may be infected with the malarial parasite, Plasmodium floridense. Because no studies have directly addressed health effects of the parasite on Florida anoles, we collected blood smears of infected and uninfected anoles from Central and Southwest Florida and compared the overall leukocyte (WBC) counts, eosinophil counts, and heterophil/lymphocyte ratios. Eosinophils are generally elevated in response to protozoal infection and heterophil/lymphocyte ratios are often altered due to stress. A generalized linear model that tested contributions to erythrocyte/leukocyte ratios included infection status and locality as significant factors. We found significant differences in WBC counts between infected and uninfected lizards in Central Florida but not in Southwest Florida. Central Florida anoles also had higher mean WBC counts than Southwest Florida anoles. We did not detect significant differences in eosinophil counts or H/L ratios related to infection status. Our project is the first to examine leukocyte effects of Plasmodium infection in anoles and to provide leukocyte profiles of Anolis lizards. It appears that infected anoles sustain some negative immunological effects, at least in Central Florida. The differences in regions may be caused by the fact that Central Florida anoles still are under continuous interspecific competition whereas the Southwest Florida Brown Anoles are not because of low populations of Green Anoles. Additional studies that address leukocyte levels related to Plasmodium infection are needed to tease out the health and fitness effects on the lizards of Florida.