Publications by authors named "Naimat Khan"

This study was designed to determine the prevalence of infections in sheep herds around tributaries in Pakistan and to evaluate the influence of potential risk factors. In total, 448 samples from 26 sheep herds were screened microscopically and then confirmed through polymerase chain reaction (PCR) amplification of the 18S SSU rRNA gene. Our result revealed that, out of 448 samples, 107 were found positive by microscopy and 77 positive by PCR, with prevalence rates of 23.

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  • Coccidiosis is a major issue in poultry farming, particularly in District Swabi, Pakistan, where data on its prevalence and species distribution in chickens is scarce.
  • A study collected 900 fecal samples from broiler and egg-laying chickens, revealing a 44.4% infection rate, with broilers, younger birds, and females showing higher infection rates.
  • The findings highlight the need for targeted interventions to manage coccidiosis and suggest future research into sampling methods and the clinical impact of the identified parasites.
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  • Trypanosomiasis is a parasitic disease significantly affecting livestock and human health in Southern Punjab, Pakistan, prompting a study to gauge its prevalence among camels, cattle, buffaloes, goats, and sheep.* -
  • The study analyzed 240 blood samples and found an overall infection rate of 22.08%, with camels showing the highest rates of infection (45.83%) compared to other ruminants, while the prevalence varied by district.* -
  • Different methods, including microscopy and PCR, were used to confirm infections, revealing varying positivity across species and districts, but no substantial differences in PCR results among the species tested.*
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  • Bluetongue virus (BTV) is a vector-borne disease threatening domesticated animals, with a study in Kalat, Balochistan evaluating its prevalence in sheep and goats.
  • The study analyzed 270 serum samples and found an overall BTV prevalence of 27.4%, with variations across different areas and animal breeds.
  • Results indicate that the Khurasani breed was the most susceptible, and factors such as open grazing and tick presence were noted; further research and control measures are recommended.
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Background/objectives: Childhood obesity, particularly in girls, is linked to early puberty onset, heightening risks for adult-onset diseases. Addressing childhood obesity and precocious puberty is vital to mitigate societal burdens. Despite existing costly and invasive medical interventions, introducing lifestyle-based alternatives is essential.

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  • The research focuses on KRuF and KOsF fluoride materials as new semiconductor options for renewable energy devices, exploring their properties using computational methods.
  • The study confirms that both materials are indirect semiconductors, with band gap values of 2.1 eV for KRuF and 1.7 eV for KOsF, indicating their potential for electronic applications.
  • Mechanical properties, including ductility and optical performance in the UV range, were analyzed, suggesting that both materials hold promise for future use in optoelectronic devices.
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The non-toxic nature of lead-free materials with cubic perovskite structure has attracted the researcher's attention, and huge work is ongoing for the search of such materials. Furthermore, due to demand for their utilization in diverse applications, such as photovoltaic and optoelectronics, these inorganic-halide materials have become more enchanting for engineers. In the present work, all the key properties, including structural, electronic, optical, and mechanical, of rubidium based RbVX (where X is chlorine, bromine, and iodine) materials were extensively studied first-principle density functional theory (DFT).

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  • - This study explores the cubic double perovskite compounds CsKCrCl and CsNaCrCl using Density Functional Theory (DFT) and finds them stable with lattice constants between 10.58-10.20 Å and good tolerance factor values, indicating structural stability.
  • - The research confirms the elastic stability of these compounds through calculated elastic constants and reveals their half-metallic electronic behavior by analyzing their band structures and density of states.
  • - Additionally, the optical properties of the compounds were examined, determining various characteristics like dielectric functions, absorption coefficients, and reflectivity across a photon energy range up to 40 eV, suggesting potential applications in optical devices.
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is a prominent cause of food-borne diseases worldwide. Enterotoxigenic strains of this bacteria are frequently found in raw milk, and some of these strains are resistant to antimicrobials, posing a risk to consumers. The main objectives of this study were to determine the antimicrobial resistance pattern of in raw milk and to detect the presence of and genes in it.

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Perovskites are a significant class of materials with diverse uses in modern technology. The structural, electronic, elastic, thermoelectric, and optical properties of RbTiCl and CsTiCl perovskites were estimated using the FP-LAPW method within the framework of density functional theory. The exchange-correlation energy of both analyzed systems was calculated using the Generalized Gradient Approximation (GGA) functional.

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This study reports the theoretical investigations on the structural, electronic, and optical properties of titanium-based fluoro-perovskites MTiF (M = Cs and Rb) using density functional theory. The impact of on-site Coulomb interactions is considered, and calculations are performed in generalized gradient approximation with the Hubbard term (GGA + ). The ground state parameters, such as lattice constants, bulk modulus, and pressure derivatives of bulk modulus, were found.

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Diabetes mellitus (DM) is a complex and multiple group of disorders, and understanding the molecular mechanisms is a key role in identifying various markers involved in the diagnosis of the disease. Brucine is derived from the seeds of L. (Loganiaceae), which has been used in traditional medicine to cure a variety of ailments, such as chronic rheumatism, nervous system diseases, dyspepsia, gonorrhea, anemia, and bronchitis, and has analgesic, anti-inflammatory, anti-oxidant, anti-snake venom, and anti-diabetic properties.

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Purpose: The modified-Medical Research Council (mMRC) breathlessness scale consists of five grades that contain of a description of different activities. It has wide utility in the assessment of disability due to breathlessness but was originally developed before the advent of modern psychometric methodology and, for example contains more than one activity per grade. We conducted an evaluation of the mMRC structure.

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Background: Cryptosporidium spp. is recognized as an opportunistic zoonotic parasite that infects humans as well as wild and domestic animals. This enteric protozoan is a major cause of diarrhea in humans and animals and often result in death due to severe dehydration.

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The current article paper is aimed at assessing and comparing the seasonal check-in behavior of individuals in Shanghai, China, using location-based social network (LBSN) data and a variety of spatiotemporal analytic techniques. The article demonstrates the uses of location-based social network's data by analyzing the trends in check-ins throughout a three-year term for health purpose. We obtained the geolocation data from Sina Weibo, one of the biggest renowned Chinese microblogs (Weibo).

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Background: The effects of triple therapy on gas trapping in COPD are not fully understood. We evaluated the effects of the long acting bronchodilator components of the extrafine single inhaler triple therapy beclometasone dipropionate/formoterol/glycopyrronium (BDP/F/G) pMDI on gas trapping.

Methods: This open-label, randomised, single centre, 2-way cross-over study recruited 23 COPD patients taking inhaled corticosteroid combination treatments and with residual volume (RV) > 120% predicted at screening.

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Background: Methacholine challenges have been used in clinical trials to assess therapeutic effects and potential adverse reactions of interventions on pulmonary function in a sensitive population, such as in subjects with asthma. Here, we evaluate the variability of the methacholine challenge recovery model, and compare the results obtained for both incremental and bolus challenge methods.

Methods: The extent, time course and variability of change in forced expiratory volume in 1 s (FEV) following repeated methacholine challenges in subjects with mild asthma were investigated in an open-label, four-period, fixed-sequence, two-method, replicate crossover study.

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Aims: Oral itraconazole has variable pharmacokinetics and risks of adverse events associated with high plasma exposure. An inhalation formulation of itraconazole (PUR1900) is being developed to treat allergic bronchopulmonary aspergillosis, an allergic inflammatory disease occurring in asthmatics and patients with cystic fibrosis.

Methods: A 3-part, open-label Phase 1 study was conducted to evaluate safety, tolerability and pharmacokinetics of PUR1900.

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Rhinovirus (RV) infections are a major cause of exacerbations in patients with asthma. Experimental RV challenges can provide insight into the pathophysiology of viral exacerbations. Previous reports, investigating mild or moderate asthma patients, have shown an upregulation in type 2 inflammation post RV infection, however, studies specifically involving asthma patients taking inhaled corticosteroids have concentrated on symptoms and lung function, rather than the inflammatory response.

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Background: In COPD disturbed sleep is related to exacerbation frequency, poor quality of life, and early mortality. We developed the Manchester Respiratory-related Sleep Symptoms scale (MaRSS) to assess sleep-time symptoms in COPD.

Methods: Focus groups including COPD and age-matched controls were used to develop an item-list, which was then administered to COPD patients and age-matched controls in a cross-sectional study.

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The study project was designed to determine the effects of Clostridium perfringens type D infection on hematological and biochemical parameters in goats. Purposive blood samples were collected from 6 healthy and 12 diseased goats positive for C. perfringens infection.

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Aim: Early morning symptoms (EMS) in people with COPD are associated with poor health, impaired activities and increased exacerbation risk. We describe the development and preliminary validation of the Manchester Early Morning Symptom Index (MEMSI) to quantify EMS in COPD.

Methods: Focus groups and cognitive debriefing with patients with COPD were used to develop the potential item list, followed by a cross-sectional study to finalise the items for inclusion.

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Background: Sleep problems are common in patients with chronic obstructive pulmonary disease (COPD), but the validity of patient-reported outcome measures (PROMs) that measure sleep dysfunction has not been evaluated. We have reviewed the literature to identify disease-specific and non-disease-specific sleep PROMs that have been validated for use in COPD patients. The review also examined the psychometric properties of identified sleep outcome measures and extracted point and variability estimates of sleep instruments used in COPD studies.

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Aims: Some asthma patients remain symptomatic despite using high doses of inhaled corticosteroids (ICS). We used alveolar macrophages to identify individual patients with insensitivity to corticosteroids and to evaluate the anti-inflammatory effects of a p38 mitogen-activated protein kinase (MAPK) inhibitor combined with a corticosteroid on these cells.

Methods: Alveolar macrophages from 27 asthma patients (classified according to the Global Initiative for Asthma (GINA) treatment stage.

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Air pollution by diesel exhaust particles is associated with elevated mortality and increased hospital admissions in individuals with respiratory diseases such as asthma and chronic obstructive pulmonary disease. During active inflammation monocytes are recruited to the airways and can replace resident alveolar macrophages. We therefore investigated whether chronic fourteen day exposure to low concentrations of diesel exhaust particles can alter the phenotype and function of monocytes from healthy individuals and those with chronic obstructive pulmonary disease.

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