Graphene nanoplatelets as nanofillers in mesoporous silicon oxycarbide polymer derived ceramics.

Understanding the role of graphene in the thermal stability and pore morphology of polymer derived silicon oxycarbide is crucial for electrochemical energy storage and hydrogen storage applications. Here in this work, we report the synthesis of graphene nanoplatelets dispersed silicon oxycarbide ceramics by the polymer to ceramic synthesis route. Samples containing graphene and without graphene are subjected to different pyrolysis conditions and are characterized using FT-IR, XPS, Raman spectroscopy, XRD, FE-SEM, HR-TEM, and BET.

Desmoid tumour: a rare etiology of intestinal obstruction.

Intestinal obstruction is a frequently encountered entity in surgical practice. The signs & symptoms, many a times, are suggestive of the level of obstruction, making the diagnosis of obstruction evident. There are various causes of intestinal obstruction which diversify to an enormous extent, stamping on the famous paradigm for the mysterious nature of the abdomen being referred to as the Pandora's Box.

Eugenia jambolana pretreatment prevents isoproterenol-induced myocardial damage in rats: evidence from biochemical, molecular, and histopathological studies.

Preventive effects of hydroalcoholic extract of fruit pulp of Eugenia jambolana (HEEJ) on isoproterenol (ISP)-induced myocardial damage in rats were evaluated. Rats were pre-treated with HEEJ (100, 200, and 400 mg/kg) daily for 30 days. ISP (85 mg/kg bw) was administered on the 28th and 29th days at an interval of 24 h.

N-acetyl-L-cysteine modulates multiple signaling pathways to rescue male germ cells from apoptosis induced by chronic hCG administration to rats.

The present study was aimed to investigate the beneficial effects of N-acetyl-L: -cysteine (NAC, 150 mg/kg bw twice/week) against testicular germ cell apoptosis in rats induced by chronic hCG administration (100 IU/rat/day for 30 days). NAC co-treatment improved serum testosterone, prevented rise in lipid peroxidation, intracellular H(2)O(2) and the activities of antioxidant enzymes in germ cells. Replenishment of intracellular GSH and total antioxidant capacity was seen.

Differential modulation of apoptotic gene expression by N-acetyl-L-cysteine in Leydig cells stimulated persistently with hCG in vivo.

The present study was designed to investigate the molecular mechanisms of NAC (150 mg/kg bw twice/week) action in vivo under repeated hCG (100 IU/rat/day) stimulation to adult rats. Leydig cell refractoriness led to a significant decline in serum testosterone and intracellular cAMP by day 30 of chronic hCG intervention which improved significantly following NAC co-administration. It inhibited the rise in lipid peroxidation, improved the activity of antioxidant enzymes along with intracellular glutathione and total antioxidant capacity in the target cells.

A prospective single center study to assess the impact of surgical stabilization in patients with rib fracture.

Objective: To compare the intensity of pain and duration of return to normal activity in patients with rib fractures treated with surgical stabilization with plating versus conventional treatment modalities.

Patients And Methods: This study was conducted over a 12 month period. Patients with rib fractures were assessed by numerical pain scale.

N-acetyl-L-cysteine counteracts oxidative stress and prevents H2O2 induced germ cell apoptosis through down-regulation of caspase-9 and JNK/c-Jun.

The mechanism of H(2)O(2) induced oxidative stress leading to male germ cell apoptosis was earlier reported from our laboratory. In the present study, we investigated the mechanisms by which N-acetyl-L-cysteine (NAC, which is highly cell specific with strong antioxidant and anti-genotoxic properties), stimulated cell survival under such conditions. Co-incubation with 5 mM NAC significantly (P<0.

N-acetylcysteine counteracts oxidative stress and prevents hCG-induced apoptosis in rat Leydig cells through down regulation of caspase-8 and JNK.

We have earlier reported that following persistent stimulation with hCG, oxidative stress-induced apoptosis in rat Leydig cells was mainly achieved through the extrinsic pathway. In the present study, the role of N-acetylcysteine (NAC) in counteracting the oxidative stress and the mechanisms of inhibition of apoptosis under such conditions were investigated. NAC (1 mM) intervention with repeated hCG stimulation (50 ng/ml, four times, each with 30 min challenge) prevented the decline in Leydig cell viability and the rise in lipid peroxidation and reactive oxygen species.

Rare asymptomatic presentations of schwannomas in early adolescence: three cases with review of literature.

Introduction: Schwannoma also known as Neurilemoma is a benign neoplasm of the Schwann Cells of the neural sheath. They are usually found to occur in the extremities, but can also be found in the trunk, head and neck, pelvis, and rectum. It is seldom painful and usually remains small.

Adverse effects associated with persistent stimulation of Leydig cells with hCG in vitro.

The detrimental effects of persistent stimulation with hCG were investigated in rat Leydig cells in vitro. Significant rise in lipid peroxidation and reactive oxygen species (ROS) with concomitant attenuation in the activities of antioxidant enzymes: superoxide dismutase, catalase, and glutathione-S-transferase was observed. Transcripts for catalase and superoxide dismutase were also depleted.

Pathways involved in testicular germ cell apoptosis induced by H2O2 in vitro.

H(2)O(2) induces apoptosis in variety of cells; however, the sensitivities of testicular germ cells to H(2)O(2) are not known. In the present study, H(2)O(2), at concentrations in the range 1-10 microM, was found to induce apoptosis in testicular germ cells in vitro. Following 1 h of treatment with 10 microM H(2)O(2), a 10-fold rise in the percentage of apoptotic cells was observed.