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1.
World Neurosurg ; 185: 3-25, 2024 05.
Article in English | MEDLINE | ID: mdl-38286319

ABSTRACT

Exploring the landscape of intracranial aneurysms in South America unravels a complex interplay of epidemiological factors, clinical manifestations, and therapeutic challenges. The study methodically conducts a comprehensive literature review spanning the years 2003 to 2023, focusing on English-language articles obtained from diverse databases to elucidate the multifaceted nature of intracranial aneurysms in the region. Results and discussions categorize outcomes into positive domains, emphasizing successful treatments, favorable recoveries, and high survival rates, while also shedding light on negative aspects such as residual aneurysms and complications. The research illuminates significant gaps in pathological typing of intracranial aneurysms and exposes challenges in healthcare accessibility, notably the disparities in neurosurgical resources. Management challenges, including constrained infrastructure access, a neurosurgeon shortage, and gender disparities, are underscored. Transitioning to future prospects, the study advocates for strategic interventions, proposing expanded neurosurgical training, multidisciplinary approaches, improved funding, enhanced access to care, and fostering international collaborations. The study concludes by emphasizing the pivotal role of collaborative efforts, intensified training programs, and global partnerships in propelling intracranial aneurysm management forward in South America, ultimately contributing to enhanced patient outcomes across the region.


Subject(s)
Intracranial Aneurysm , Humans , Intracranial Aneurysm/epidemiology , Intracranial Aneurysm/therapy , Intracranial Aneurysm/surgery , South America/epidemiology , Neurosurgical Procedures , Neurosurgeons , Health Services Accessibility
2.
Oman J Ophthalmol ; 16(3): 415-420, 2023.
Article in English | MEDLINE | ID: mdl-38059089

ABSTRACT

Plateau iris syndrome (PIS) was first coined in 1958 to describe the iris configuration of a patient, 2 years later; the concept of plateau iris was published. In 1992, the anatomic aspects of plateau iris were studied using ultrasound biomicroscopy (UBM) determining it as a form of primary angle-closure glaucoma caused by a large or anteriorly positioned ciliary body that leads to mechanical obstruction of the trabecular meshwork, this condition is most often found in young patients. We aim to review the current literature and knowledge on the diagnosis and treatment options of PIS; the search was conducted in PubMed, LILACS, and BIREME internet search sites using keywords and snowball search strategy of articles published until 2022, focusing on PIS history, epidemiology, clinical diagnosis, UBM feature, and treatment.

3.
ACS Omega ; 8(42): 39535-39545, 2023 Oct 24.
Article in English | MEDLINE | ID: mdl-37901565

ABSTRACT

Herein, we describe a urea hydrogen peroxide-mediated sustainable protocol for the synthesis of selenylated imidazo[2,1-b]thiazole by using half molar equivalent diorganyl diselenides in ethyl lactate as a greener solvent. The reaction features high yields, easy performance on gram scale, metal-free conditions, as well as applicability to imidazopyridine and imidazopyrimidine.

4.
Environ Sci Pollut Res Int ; 29(57): 86744-86758, 2022 Dec.
Article in English | MEDLINE | ID: mdl-35794334

ABSTRACT

The main objective of this paper is to look at how environmental degradation in the form of climate change and air pollution affect international tourism for five countries such as Brazil, Russia, India, China, and South Africa (BRICS) over the years 1990-2019. Other independent variables include information and communication technology (ICT) and democracy. We also look at the role of environmental regulation to see the validity of porter hypothesis in the tourism sector. To achieve this objective, we apply a novel method of moments quantile regression approach as well as a robust causality technique. The result shows that at lower and medium quantile, CO2 emission has positive impact on tourism while at higher quantile, CO2 emission has negative but insignificant effect on tourism in BRICS countries. The result for PM2.5 is uniform across all the quantiles, showing the negative effect on tourism. ICT and human capital positively affect the tourism while democracy has negative impact on the tourism sector of the BRICS nations. The result also validated the Porter hypothesis for tourism sector. We conclude that tourism industry stakeholders and the environmental policymakers must work together to integrate tourism policies with BRICS countries' environmental conservation policies as part of the transition to sustainable tourism industry.


Subject(s)
Air Pollution , Economic Development , Humans , Climate Change , Carbon Dioxide/analysis , Tourism , China , South Africa , Brazil , India , Russia
5.
An Acad Bras Cienc ; 92(4): e20200067, 2020.
Article in English | MEDLINE | ID: mdl-33206790

ABSTRACT

Urolithiasis is a disorder of kidneys in which stones formation occur due to the excessive deposition of minerals in the urinary tract. It affects 12% of the population worldwide. Salvia hispanica seeds are rich source of quercetin which has preventive role in renal stone formation. The study objective was to explore scientifically the anti-urolithiatic effect of Salvia hispanica seed's methanol extract using in vitro and in vivo urolithiasis models. For in-vitro study nucleation, growth and aggregation assays were performed. In vivo study was performed on rats and they were divided into six groups (n=6). Group-I was given vehicle only. Group-II was disease control, treated with 0.75% EG in drinking water which triggered urolithiasis. Groups-III received cystone (750 mg/kg, orally). Groups IV-VI were treated with extract at 100, 300 and 700 mg/kg doses orally once daily. Groups III-VI additionally received 0.75% EG in drinking water. In vitro study revealed concentration dependent increase in percentage inhibition of crystal's nucleation, growth and aggregation. In vivo study revealed anti-urolithiatic activity by lowering oxalate, calcium, phosphate, sodium and potassium levels in the urine and the serum uric acid, blood urea nitrogen, total proteins and total albumin. Salvia hispanica seeds are good alterative of allopathic anti-urolithiatic drugs to treat urolithiasis.


Subject(s)
Salvia , Urolithiasis , Animals , Ethylene Glycol , Plant Extracts/pharmacology , Rats , Seeds , Uric Acid , Urolithiasis/chemically induced , Urolithiasis/drug therapy
6.
Environ Sci Pollut Res Int ; 27(16): 19616-19629, 2020 Jun.
Article in English | MEDLINE | ID: mdl-32219652

ABSTRACT

Emerging economies are mostly plague by a massive consumption of non-renewable energy amidst an ever inceasing urbanization rate with little or no attention to the quality of the environmental. As such, this paper investigates the relationship between renewable energy, urbanization, economic growth, trade openness, and ecological footprint in CIVETS countries, namely, Colombia, Indonesia, Vietnam, Egypt, Turkey, and South Africa. The study employs augmented mean group estimator, panel cointegration, and causality tests. The findings reveal that renewable energy improves environmental quality, and trade is not particularly harmful to the environment. However, non-renewable energy consumption and urbanization are the chief contributors to environmental degradation in the CIVETS countries. Economic expansion mitigates environmental deterioration in Colombia, South Africa, and Turkey, but contributes to pollution in Egypt, Indonesia, and Vietnam. Finally, the causality test suggests that urbanization drives environmental degradation. Policy directions are discussed.


Subject(s)
Urbanization , Viverridae , Animals , Carbon Dioxide/analysis , Colombia , Economic Development , Egypt , Indonesia , Renewable Energy , South Africa , Turkey , Vietnam
7.
Inflammopharmacology ; 26(4): 1117-1123, 2018 Aug.
Article in English | MEDLINE | ID: mdl-29536218

ABSTRACT

Selenium (Se) is a dietary essential trace element with important biological roles. It is a nutrient related to the complex metabolic and enzymatic functions. Organoselenium compounds have been reported to have anti-ulcer activity and used as drug for the treatment of gastrointestinal disorders. The antiulcer activity of binapthyl diselenide (NapSe)2 was investigated in ethanol-induced gastric lesions in rats. A number of markers of oxidative stress were examined in rats stomach including thiobarbituric acid reactive species (TBARS), catalase (CAT), superoxide dismutase (SOD), non-protein thiol groups (NPSH) and ascorbic acid. (NapSe)2 was found to be significantly restoring the deficits in the antioxidant defense mechanisms (CAT, SOD, NPSH and ascorbic acid), and suppressed lipid peroxidation in rat stomach resulting from EtOH administration. It is experimentally concluded that ethanol exposure causes alterations in the antioxidant defense system and induces oxidative stress in rat stomach. These studies establish a promising foundation for investigating and understanding the beneficial effects of organoselenium compounds on human health. Moreover, (NaPSe)2 deserves further investigation as a therapeutic and preventive agent against gastric ulcer in humans.


Subject(s)
Anti-Ulcer Agents/pharmacology , Organoselenium Compounds/pharmacology , Oxidative Stress/drug effects , Stomach Ulcer/prevention & control , Animals , Antioxidants/metabolism , Catalase/metabolism , Disease Models, Animal , Ethanol/toxicity , Lipid Peroxidation/drug effects , Male , Rats , Rats, Wistar , Superoxide Dismutase/metabolism , Thiobarbituric Acid Reactive Substances/metabolism
8.
Braz. arch. biol. technol ; Braz. arch. biol. technol;59: e16160301, 2016. tab, graf
Article in English | LILACS | ID: biblio-951352

ABSTRACT

ABSTRACT Newcastle disease (ND) is a major infectious disease of the poultry caused by a virulent strain of Avian Paramyxovirus - 1, that is a single strand non-segmented negative sense RNA virus. ND virus is major threat to the poultry industry in many countries of the world. The study was aimed to isolate and identify Newcastle disease virus (NDV) by using a haemagglutination inhibition (HI) test and reverse transcription-polymerase chain reaction (RT-PCR) assay. A total 100 samples of infected and dead birds were collected from different poultry farms. The weight of the birds was ranged 1000-1200g. The birds were divided into 3 groups. Haemagglutination assay (HA) was performed to detect the presence of NDV in suspension of infected homogenized tissues and it was found that HA is not the best method to detect the virus when it is in trace amounts. RT-PCR using NDV specific primers analyzed different clinical and postmortem samples. Reverse transcriptase polymerase chain reaction and specific primers was used for determining the presence of viruses. It was found that the virus was present in most of the infected samples except the serum of infected birds. During multiple sequence alignment (MSA) it was found that, our isolates have high homology (98%) with other reported NDV isolates. Phylogenetic analysis revealed that our isolate was closely related with viscerotropic velogenic types of NDV, which are highly pathogenic Newcastle disease virus.

9.
Acta sci. vet. (Online) ; 43: 1-5, 2015. tab
Article in English | VETINDEX | ID: vti-23762

ABSTRACT

Background: Reproductive activity of male animal is strongly associated with development of the testicle, the conductor channels and accessory sex gland. Vas deference may be considered the extra-testicular continuation from cauda of the epididymis, and it is the portion of the reproductive tract fundamentally associated with transportation of the sperm-containing fluid from each epididymis to the urethra for their finishing discharge. Non-ampulated part is further divided into: extra-abdominal portion along the caudal border of testes, up to the vaginal ring and abdominal portion started from the vaginal ring to ampullae. Accessory sex glands including vesicular gland and ampullae of vas deferens are characteristically essential for reproductive process. Gross morphometric features of anatomical structures of male reproductive tract in an animal make available a very valuable mechanism in understanding of several physiological and reproductive phenomena. The current study aim at documenting baseline data on gross morphometric aspects of vas deference and seminal vesicle in adult male local nondescript goats in Pakistan ecology that could be utilized as reference values in evaluating their congenital defects and gross pathological abnormalities.Materials, Methods & Results: Experiments were carried out on ampullated and non-ampullated segment of vas deference and seminal vesicle. A total of n = 100 local male goats of 2-3 years of age were selected for this study. Vas deference and seminal vesicles (accessory sex gland) were collected immediately after slaughter from local abattoirs. The non-ampullated segment of vas deference was further divided into abdominal and extra-abdominal segment. Specimens were dissected and washed with normal saline. Standard procedure was adopted for these morphometric features of vas deference and seminal vesicle by using vernier caliper, scale, non-stretchable thread and electronic weighing balance.[...](AU)


Subject(s)
Animals , Male , Vas Deferens/anatomy & histology , Seminal Vesicles/anatomy & histology , Reference Values , Pakistan
10.
Acta sci. vet. (Impr.) ; 43: 1-5, 2015. tab
Article in English | VETINDEX | ID: biblio-1457318

ABSTRACT

Background: Reproductive activity of male animal is strongly associated with development of the testicle, the conductor channels and accessory sex gland. Vas deference may be considered the extra-testicular continuation from cauda of the epididymis, and it is the portion of the reproductive tract fundamentally associated with transportation of the sperm-containing fluid from each epididymis to the urethra for their finishing discharge. Non-ampulated part is further divided into: extra-abdominal portion along the caudal border of testes, up to the vaginal ring and abdominal portion started from the vaginal ring to ampullae. Accessory sex glands including vesicular gland and ampullae of vas deferens are characteristically essential for reproductive process. Gross morphometric features of anatomical structures of male reproductive tract in an animal make available a very valuable mechanism in understanding of several physiological and reproductive phenomena. The current study aim at documenting baseline data on gross morphometric aspects of vas deference and seminal vesicle in adult male local nondescript goats in Pakistan ecology that could be utilized as reference values in evaluating their congenital defects and gross pathological abnormalities.Materials, Methods & Results: Experiments were carried out on ampullated and non-ampullated segment of vas deference and seminal vesicle. A total of n = 100 local male goats of 2-3 years of age were selected for this study. Vas deference and seminal vesicles (accessory sex gland) were collected immediately after slaughter from local abattoirs. The non-ampullated segment of vas deference was further divided into abdominal and extra-abdominal segment. Specimens were dissected and washed with normal saline. Standard procedure was adopted for these morphometric features of vas deference and seminal vesicle by using vernier caliper, scale, non-stretchable thread and electronic weighing balance.[...]


Subject(s)
Male , Animals , Vas Deferens/anatomy & histology , Seminal Vesicles/anatomy & histology , Reference Values , Pakistan
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