Correlation of Genetic Heterogeneity with Cytopathological and Epidemiological Findings of Leishmania major Isolated from Cutaneous Leishmaniasis in Southern Iran

2016 ◽  
Vol 60 (2) ◽  
pp. 97-106 ◽  
Author(s):  
Sadegh Shirian ◽  
Ahmad Oryan ◽  
Gholam-Reza Hatam ◽  
Mohammad-Reza Tabandeh ◽  
Ehasan Daneshmand ◽  
...  

Objective: Cutaneous leishmaniasis (CL) has recently grown into a major public health problem in 88 countries of the world, including Iran. It is a polymorphic disease which may show various clinicopathological features. Although the effect of the genetic diversity of the parasite has been demonstrated as one of the factors influencing clinical manifestations in CL, no data exist regarding the genetic variation of Leishmania major and its microscopical features. Study Design: Fine-needle aspiration, touch smears and the histological sections of 100 patients were examined for Leishmania amastigotes, using Giemsa and hematoxylin and eosin. Diverse types of inflammatory cells in the 40 positive and 5 negative smears were differentiated. Kinetoplast DNA (kDNA) was amplified using nested PCR and subsequently sequenced. Sequencing analysis of the amplified kDNA was used to investigate the genetic variations among L. major isolates and to correlate the findings with microscopical features and geographical origins. Results: The quantified amastigote density in the 40 positive touch smears was blindly classified by 3 observers. Grade I, II, III and IV had 7, 13, 9 and 11 cases, respectively. The microscopical features, the mean percentage of neutrophils, lymphocytes and other inflammatory cells, and the leishmanial density of the grades and negative cytopathological samples were contrasting. kDNA amplification of L. major was detected from the cutaneous lesion, and 21 of these amplicons were successfully sequenced. Conclusions: These results indicate that L. major strains causing CL in southern Iran are genetically diverse; furthermore, a correlation between the genetic heterogeneity of the parasite, the microscopical manifestation and the geographical regions of the disease in humans was found.

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Abaseen Khan Afghan ◽  
Masoom Kassi ◽  
Pashtoon Murtaza Kasi ◽  
Adil Ayub ◽  
Niamatullah Kakar ◽  
...  

Cutaneous leishmaniasis (CL) is a rising epidemic in Pakistan. It is a major public health problem in the country especially alongside regions bordering the neighboring Afghanistan and cities that have had the maximum influx of refugees. The purpose of our paper is to highlight the diverse clinical manifestations of the disease seen along with the geographic areas affected, where the hosts are particularly susceptible. This would also be helpful in presenting the broad spectrum of the disease for training of health care workers and help in surveillance of CL in the region. The increased clinical diversity and the spectrum of phenotypic manifestations noted underscore the fact that the diagnosis of CL should be not only considered when dealing with common skin lesions, but also highly suspected by dermatologists and even primary care physicians even when encountering uncommon pathologies. Hence, we would strongly advocate that since most of these patients present to local health care centers and hospitals, primary care practitioners and even lady health workers (LHWs) should be trained in identification of at least the common presentations of CL.


2018 ◽  
Vol 17 (2) ◽  
pp. 83-89 ◽  
Author(s):  
I. Zeouk ◽  
A. Et-Touys ◽  
M. Balouiri ◽  
H. Fellah ◽  
A. El Ouali Lalami ◽  
...  

According to the World Health Organization, leishmaniasis remains a major worldwide public health problem. The province of Sefrou located in the center of Morocco is a focus of cutaneous leishmaniasis. The present study aims at evaluating the antileishmanial potential of Berberis sp.,Crataegus oxyacantha, Cistus salviifolius, Ephedra altissima and Lavandula dentatafrequently used by the local population. Methanolic extracts were tested against the promastigote form ofLeishmania tropica, Leishmania majorandLeishmania infantumusing tetrazolium-based colorimetric (MTT) assay. The total phenol and flavonoids content of all extracts were determined using the Folin–Ciocalteu reagent, aluminum chloride, and potassium acetate solutions respectively. The plant extracts exhibited antileishmanial activity with variability depending on the tested strain and the plant species compared to Glucantime® used as control (IC50 (the half maximal inhibitory concentration) > 1,000 μg/mL). The best inhibition was observed with Berberis sp., againstLeishmania major(IC50 = 394.40 ± 3.02 μg/ml), andEphedra altissima(reported for the first time) againstLeishmania infantum(IC50 = 490.84 ± 3.15 μg/mL).Leishmania tropicahas shown the same sensitivity behavior toward the five extracts (in average IC50 = 540 ± 11.20 μg/mL). The total phenolic content was higher forCrataegus oxyacanthaandCistus salviifolius(140.67 ± 3.17 μg eq Gallic Acid (GA)/ mg of Extract (E) and 133.83 ± 9.03 μg eq GA/mg of E respectively), while flavonoid was higher forCistus salviifoliusandLavandula dentata(57.92 ± 2.46 μg eq Quercetin (Que)/ mg of Extract (E) and 41.53 ± 1.74 μg eq Que/mg of E). All the tested extracts present some promising aspects that may cure cutaneous leishmaniasis in the center of Morocco; further bioguided assays are needed to isolate the fractions and the bioactive molecule.


2004 ◽  
Vol 122 (1) ◽  
pp. 26-31 ◽  
Author(s):  
Mário Terra Filho ◽  
Chen Chin Yen ◽  
Ubiratan de Paula Santos ◽  
Daniel Romero Muñoz

CONTEXT: Brazilian researchers have recently recognized a marked increase in the number of people using abusable drugs and the consequences of this habit. It has become a major public health problem in a potentially productive segment of the general population. In the last few years, several medical articles have given special emphasis to pulmonary complications related to cocaine use. This review is based on this information and experience acquired with groups of cocaine users. OBJECTIVE: To present to physicians the pulmonary aspects of cocaine use and warn about the various effects this drug has on the respiratory system, stressing those related to long-term use. DESIGN: Narrative review. METHOD: Pulmonary complications are described. These may include infections (Staphylococcus aureus, pulmonary tuberculosis, acquired immunodeficiency syndrome/aids, etc.), aspiration pneumonia, lung abscess, empyema, septic embolism, non-cardiogenic pulmonary edema, barotrauma, pulmonary granulomatosis, bronchiolitis obliterans and organizing pneumonia, pneumonitis and interstitial fibrosis, pneumonitis hypersensitivity, lung infiltrates and eosinophilia in individuals with bronchial hyperreactivity, diffuse alveolar hemorrhage, vasculitis, pulmonary infarction, pulmonary hypertension and alterations in gas exchange. It is concluded that physicians should give special attention to the various pulmonary and clinical manifestations related to cocaine use, particularly in young patients.


2017 ◽  
Vol 22 (2) ◽  
pp. 106-112
Author(s):  
A. M Bronshteyn ◽  
N. G Kochergin ◽  
N. A Malyshev ◽  
V. Ya Lashin ◽  
S. V Burova ◽  
...  

Two cases of New World cutaneous leishmaniasis acquired by Russian tourists in Peru and possibly in Bolivia are presented. L. viannia ( L.braziliensis complex) was identified in Liverpool School of Tropical medicine in the patient travelled to Bolivia. The present study aimed to investigate Balsamum peruvianum one of the product of folk medicine of Indians of Amazon region against local species of Leishmania resulted in healing the ulcers. Leishmaniasis is a major public health problem, and the alarming spread of parasite resistance has increased the importance of discovering new therapeutic products.


2020 ◽  
pp. 1529-1533
Author(s):  
Pedro L. Moro ◽  
Hector H. Garcia ◽  
Armando E. Gonzalez

Cystic hydatid disease, caused by Echinococcus granulosus, is a zoonotic disease principally transmitted between dogs and domestic livestock, particularly sheep. Humans are infected when they ingest tapeworm eggs, with disease occurring in most parts of the world where sheep are raised and dogs are used to herd livestock. The most common clinical manifestations are cysts in the liver (typically presenting with hepatomegaly) and/or lung (presenting with cough, haemoptysis, and dyspnoea). Diagnosis is usually made on the basis of serological tests in combination with imaging techniques. Treatment options include surgery, chemotherapy with anthelminthic agents, or—for liver cysts—PAIR (puncture–aspiration–injection–reaspiration). Echinococcosis is a major public health problem in several countries. Control programmes have been aimed at educating dog owners to prevent their animals from having access to infected offal. Vaccines against sheep hydatidosis and the dog tapeworm stage are promising alternatives.


2016 ◽  
Vol 21 (4) ◽  
pp. NP98-NP102 ◽  
Author(s):  
Sedighe Albakhit ◽  
Shahram Khademvatan ◽  
Monir Doudi ◽  
Masoud Foroutan-Rad

Leishmaniasis is considered as a major public health problem worldwide. Current drugs in treatment of leishmaniasis have some limitations; thus, the current study was aimed to assess the methanolic extracts of pit and fruit of Phoenix dactylifera against Leishmania major promastigotes. L major promastigotes were cultured in RPMI 1640 and incubated at 25°C ± 1°C for 24, 48, and 72 hours. For obtaining the IC50 (half maximal inhibitory concentration) value, MTT assay was employed. Furthermore, promastigotes were examined in terms of morphology under light microscope. About 48 hours after treatment, IC50s were estimated 23 μg/mL and 500 mg/mL for methanolic extracts of pit and fruit of P dactylifera, respectively. Both extracts exhibited a dose and time-dependent antileishmanial activity against L major parasites. Also, some visible morphological changes were seen. This finding revealed both date fruit and pit, are effective against L major promastigotes. Further studies should be designed in future based on apoptosis induction in vitro and in vivo.


Author(s):  
Shikha Chugh ◽  
Vijay Kumar Garg ◽  
Rashmi Sarkar ◽  
Kabir Sardana

Sexually transmitted diseases are a major public health problem both in developing and in developed countries, and especially with the co-synergy with HIV infection, there is an increasing need to have a proper understanding of the clinicodemographic patterns of sexually transmitted infections (STIs) for planning and implementing control strategies. Worldwide, there is an increased preponderance of viral STIs. Increasing incidence and altered clinical presentation of viral STIs in patients with HIV pose a diagnostic challenge; thereby, we studied the demographic profile of HIV-seropositive patients and compared clinical manifestations of viral STIs in HIV-seropositive patients to those in seronegative individuals. Twenty-seven HIV-seropositive patients with viral STI (herpes/molluscum/warts) and same number of age-, sex-, and STI-matched seronegative patients were studied for variability in clinical profile. There were significant differences in the demographic factors (education, income, and migration) and sexual practices (number of contacts and source of infection) in the 2 groups. Lesional symptoms, increased extent of lesions, and resistance to treatment were significantly more common in HIV-seropositive patients.


2015 ◽  
Vol 3 (3) ◽  
Author(s):  
Sitti S. P. Kamuh ◽  
Arthur E. Mongan ◽  
Maya F. Memah

Abstract: Dengue is a major public health problem that can be found throughout the tropical and subtropical countries around the world. Spectrum of clinical manifestations of dengue virus infection varies greatly. In addition to clinical symptoms, the diagnosis of dengue virus infection need to be supported by blood tests such as hematocrit and erythrocyte sedimentation rate. This study aimed to determine the hematocrit value and erythrocyte sedimentation rate (ESR) in children with dengue virus infection in Manado. This study used a cross-sectional design and was conducted from Desember 2014 to January 2015 at GMIM Pancaran Kasih, Advent, and Robert Wolter Mongisidi hospitals in Manado. There were 37 patients that fulfilled the inclusion criteria, consisted of 17 males and 20 females. The results showed that of 37 patients, there were 36 with hematocrit within normal limits. Moreover, of 37 patients only 6 patients performed the ESR examination; only 1 child had a rapid ESR result (> 15mm/h). Conclusion: In this study, most of the pediatric patients with dengue virus infection in Manado had normal hematocrit. Of 6 patients who had performed ESR test, only 1 had rapid ESR.Keywords: dengue, hematocrit, erythrocyte sedimentation rateAbstrak: Dengue merupakan masalah kesehatan masyarakat yang utama dan dapat ditemui diseluruh daerah tropis dan subtropis di seluruh dunia. Spektrum manifestasi klinis infeksi virus dengue sangat bervariasi. Selain gejala klinis, diagnosis infeksi virus dengue perlu ditunjang hasil uji darah di laboratorium antara lain hematokrit dan laju endap darah (LED). Penelitian ini bertujuan untuk mengetahui nilai hematokrit dan LED pada anak dengan infeksi virus dengue di Manado. Penelitian ini menggunakan desain potong lintang, dilakukan pada bulan Desember 2014 sampai Januari 2015 di RSU GMIM Pancaran Kasih Manado, RS Advent Manado, dan RSAD Robert Wolter Mongisidi Teling17 anak laki-laki dan 20 anak perempuan. Hasil penelitian memperlihatkan 36 dari 37 pasien mempunyai hematokrit normal. Dasri 37 pasien, hanya 6 anak yang menjalani pemeriksaan LED; hanya 1 anak dengan LED cepat (> 15mm/jam). Simpulan: Pada studi ini, sebagian besar pasien anak dengan infeksi virus dengue di Manado mempunyai nilai hematokrit normal. Dari 6 pasien yang dilakukan pemeriksaan LED, 1 anak mempunyai hasil LED cepat.Kata kunci: dengue, hematrokrit, laju endap darah.


2016 ◽  
Vol 11 (2) ◽  
pp. 155-159
Author(s):  
Camelia C. DIACONU ◽  
◽  
Alice BĂLĂCEANU ◽  
Mihaela Adela IANCU ◽  
◽  
...  

Heart failure is a major public health problem in developed countries. Many of the clinical manifestations of heart failure are due to congestion and fluid retention, therefore diuretic therapy occupied for a long time an important place in the management of these patients. All diuretics increase the excretion of water from the body, each of the classes of diuretics achieving this effect in a distinct manner. Given the magnitude of their effect, loop diuretics are the central pillar of diuretic therapy in many patients with heart failure. Resistance to diuretic therapy is one of the management issues for medical science, which is looking for solutions.


2021 ◽  
Vol 12 ◽  
Author(s):  
Chun-Hui Wang ◽  
Li-Jia Song ◽  
Yang Yang ◽  
Xiao-Peng Qu ◽  
Li Lan ◽  
...  

Poisoning is a type of accidental injury and it is considered a major public health problem worldwide. Oral drug poisoning in children is an important cause of accidental injury and even death. It is a common critical emergency in the field of pediatrics. Once a child unintentionally takes an overdose, regardless of whether it caused poisoning or not, they should be admitted to the hospital for emergency treatment. Acute poisoning in children most frequently occurs through the digestive tract. Drug poisoning can happen in children of all ages. In children younger than 1 year, drug poisoning is mostly caused by the parents during feeding, while in children aged 1–3 years, it predominantly occurs as a result of an accident. A case of diagnosis and treatment of a child with diphenoxylate-atropine poisoning is reported herein. The early manifestation of this child was acute toxic encephalopathy with clinical manifestations of a coma, convulsions, and respiratory depression. A brain MRI showed extensive damage to the bilateral caudate nucleus, lenticular nucleus, parietal lobe, precuneus lobe, and occipital lobe. Accidental administration of a large dose of diphenoxylate results in severe clinical symptoms and can cause obvious diffuse brain damage.


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