Peripheral Giant Cell Granuloma of Posterior Maxilla in a 9-Year Child.

Peripheral giant cell granuloma is a relatively uncommon benign reactive gingival lesion of the oral cavity. A 9-year boy presented with a painless, slow-growing, reddish-blue, soft tissue lesion on attached gingiva adjacent to maxillary right first and second premolars, which was interfering with eating. A periapical radiograph demonstrated focal alveolar bone loss and slight teeth displacement adjacent to the lesion. Diagnosis of peripheral giant cell granuloma was made through clinical and radiographic evaluation, by its typical presentation and correlation with histopathologic findings. Complete excision was carried out down to the underlying bone. A follow-up visit was scheduled after 7 days and deep scaling was performed. There was no recurrence three months post-excision. Timely detection and excision of this lesion is important to avoid future dentoalveolar problems. Key Words: Giant cell granuloma, Benign, Peripheral, Child.

Trace elements in blood samples of smoker and nonsmoker active pulmonary tuberculosis patients from Jamshoro, Pakistan.

Pulmonary tuberculosis (PTB) is a serious public threat throughout the world. PTB and smoking have a strong correlation. Malnutrition, poverty, addiction, overcrowding, illiteracy, unemployment, and poor hygienic conditions are the collective aspects for the disease progress. Pakistan is the fifth among 22 high tuberculosis (TB) burden countries and the fourth regarding multidrug-resistant tuberculosis (MDR-TB). The aim of study was to determine the concentration of essential and toxic elements from blood samples of smoker and nonsmoker PTB patients by inductively coupled plasma mass spectrometry (ICP-MS) followed by microwave acid digestion and compared with control subjects (n = 30). Eighty PTB patients were selected from different hospitals with age ranging 20-70 years. It was interpreted that the mean age among males and females was found to be 35.6 ± 1.4 and 33.5 ± 1.2, respectively, and the male patients were highly affected in contrast to females. Essential elements such as Mn, Fe, Zn, and Se were statistically found to be lower while Ca, Co, and Cu were found to be higher compared to the control group (p = 0.00). However, toxic elements like Al, Cr, Ni, As, Cd, and Pb were statistically elevated in smokers than nonsmokers. Further research is needed to understand the degree of the impact of essential trace elements on treatment outcome (follow-up) followed by balanced healthy nutritional supplementation along with medical therapy, consequently improving the pulmonary tuberculosis outcome and survival as well.

One step hydrothermal synthesis and characterization of moss like MWCNT-Bi2S3 nanomaterial for solid phase extraction of copper.

The present work was designed with the aim to one step simple hydrothermal synthesis of moss like MWCNT-Bi2S3 nanomaterial as solid phase extraction sorbent for separation, preconcentration and determination of copper in tobacco and food samples. Cu(II) ions was strongly retained on the MWCNT-Bi2S3 nanomaterial at the pH 7.0 and was successfully desorbed by using 1.5mL of 4M HNO3. The copper concentration in eluent was determined by flame atomic absorption spectrometer. The certified reference material (NC SZC 73033 Scallion) was analyzed for the verification and accuracy of the proposed method. This work was interpreted statistically and found the analytical performance of the proposed method which consist of preconcentration factor (20), limit of quantification (13.1µgL-1) and relative standard deviation (2.2%), respectively. It was concluded that this method was applied for the detection of copper from different types of tobacco and food samples successfully.