Protective effects of the ethanolic fenugreek seeds extract and its potentiation with nitric oxide modulators in adjuvant induced changes in arthritic index, proinflammatory/anti-inflammatory cytokines imbalance and oxidative stress markers in rats

Objectives: The current study was designed to evaluate protective role of the ethanolic fenugreek seed extract (FSE) and potentiating its effects with nitric oxide (NO) modulators in experimental arthritis and its comparison with the standard drug methotrexate. Materials and Methods: The FSE was prepared using standard procedures. Fifty-four male Wistar rats were equally distributed into nine groups of six animals in each group. Rheumatoid arthritis was induced by administration of complete Freund’s adjuvant (CFA) in sub-plantar region of rt. hind paw. FSE alone and with L-arginine or N?-Nitro-L-arginine methyl ester hydrochloride (L-NAME) were administered on day 10 of CFA inoculation, i.p. Animals were evaluated for arthritic parameters, cytokines and oxidative stress markers estimation. Statistics: The data were analysed by two-way ANOVA followed by Newman Keul’s post hoc test for inter group analysis by GraphPad Prism 6.0 and P < 0.05 was taken as significant. Results: Adjuvant inoculated rat shows significant increase in arthritic and inflammatory parameters as well as oxidative stress biomarkers in serum, paw homogenates and joint synovial fluid. CFA inoculation significantly decreased anti-inflammatory cytokine-10 and SOD activity. These adjuvant-induced arthritic changes were significantly attenuated by ethanolic FSE administration from 10 to 28 days. These results are comparable to standard drug methotrexate. NO modulators further potentiated protective effects of FSE when given in combination. These results were more prominent when ethanolic seed extract was given with iNOS inhibitor, L-NAME. Conclusion: These findings suggest that FSE shows protective effects in CFA induced arthritic changes that may be mediated through pro-inflammatory/anti-inflammatory cytokines imbalance and it is associated with modulation of oxidative stress and NO-signalling.

Frequencies of regulatory subsets of CD4+ TH cells in peripheral blood in Mycobacterium Tuberculosis-Infected individuals and healthy contacts in a high-burden setting from Assam, Northeast India

Background: Mycobacterium tuberculosis (Mtb) adapts many strategies to persist and replicate inside human tissue. One such strategy is the manipulation of CD4+ TH cells for subset interconversion to regulatory subsets. The aim of the present study is to get an insight of dynamic changes of CD4+ TH cells to regulatory subsets, CD4+ CD25+ forkhead box P3 (Foxp3)+ T-cells and CD4+ CD25+ Foxp3+ programmed death molecule-1 (Foxp3+) T-cells, in peripheral blood in Mtb-infected individuals and healthy contacts in a high-burden setting from Assam, Northeast India. Materials and Methods: A case–control study was conducted in newly diagnosed active pulmonary tuberculosis (APTBs) patients and 2 sets of controls: (i) individuals infected with latent tuberculosis infection (LTBI) and (ii) healthy close tuberculosis healthy contacts (HCs). The frequencies of different subsets of CD4+ cells with regulatory markers were measured in peripheral blood in 3 groups of study participants. Results and Observations: Frequencies of CD4+ CD25+ Foxp3+ T-cells (1.84 ± 1.40 vs. 4.32 ± 1.82 vs. 11.30 ± 3.66), CD4+ CD25+ Foxp3+ PD1+ T-cells (0.37 ± 1.28 vs. 2.99 ± 3.69 vs. 14.54 ± 5.10) and ligand (PD-L1)-positive CD4+ TH cells (0.80 ± 0.45 vs. 2.28 ± 0.95 vs. 7.13 ± 2.02) were significantly increased from HCs to LTBIs to APTB patients, respectively (P < 0.0001). No significant changes in frequencies of total CD4+ cells were observed between APTBs (29.51 ± 11.93), LTBIs (29.23 ± 8.16) and HCs (28.16 ± 9.73) whereas the mean ratios of CD4+ to CD4+ CD25+ FoxP3+ were significantly decreased from 34.34 ± 47.56 in HCs to 7.96 ± 5.8 in LTBIs to 3.12 ± 2.58 in APTBs (P < 0.0001). Significant decrease in mean ratios of CD4+ CD25+ FoxP3+ to CD4+ CD25+ FoxP3+ PD1+ were also observed from 4.97 ± 1.09 in HCs to 1.44 ± 0.49 in LTBIs to 0.78 ± 0.72 in APTBs. Conclusion: CD4+ TH cells change dynamically to regulatory subsets depending on the status of infection and a shift of response towards excessive regulatory T-cells, and PD-1/PD-L1 production may help in the development of active infection in latently infected individuals. These immunological parameters may be used, as potential biomarkers to see the changing dynamics of Mtb infection.

Risk Prediction of Cardiovascular Events Using Thickness of Carotid Intima Media: An Institutional Based Study

Background: The load of coronary artery disease is on therise worldwide, developing countries, Like India, are acceptinglifestyle alterations that predispose to cardiovascular disorders.The present study was conducted with the aim to determinethe role of carotid intima media thickness in predictingcardiovascular events.Materials and Methods: The present prospective study wasperformed in the Department of Cardiology, Dr. Ram ManoharLohia Hospital & PGIMER, New Delhi, India. A detailed historyof all the subjects including medical history, biochemicalevaluation and ECG was performed amongst all the patients.The thickness of internal carotid artery and common carotidartery were measured bilaterally. A total of 3 readings wereobtained and mean was calculated. All the data thus obtainedwas arranged in a tabulated form and analyzed using SPSSsoftware.Results: A total of 200 subjects were enrolled in the study, themean age of the subjects was 44.87+/-3.89 years. There were120 males and 80 females in the study. The mean thickness ofright common carotid amongst cases was 0.12 ± .0085 andamongst control was 0.05 ± 0.0095. There was a significantdifference between the two as the p value was less than 0.05.Conclusion: Association between intimal thickness andcoronary artery disease is significant. Atherosclerosis is evenlydistributed amongst vasculature and primarily responsible forheart diseases.

Effect of radiofrequency radiation on reproductive health

The development of cellular phone system has greatly increased the extent and magnitude of radiofrequency radiation (RFR) exposure. The RFR emitted from mobile phone and mobile phone base stations exerts thermal and non-thermal effects. The short-term and long-term exposure to RFR may have adverse effect on humans as well as animals. Most laboratory studies have indicated a direct link between exposure to RFR and adverse biological effects. Several in vitro studies have reported that RFR induces various types of cancer and DNA or chromosomal damage. On the other hand, some animal studies have not reported adverse effects of this radiation. The present review summarizes information available on the possible effects of RFR on the reproductive health.

Salmonella Weltevreden food poisoning in a tea garden of Assam: An outbreak investigation.

Background: Salmonella enterica serovar Weltevreden has been a rare cause of acute gastroenteritis occurring worldwide. Here, we report an outbreak of food poisoning in a tea garden. Objectives: To determine the aetiological agent and risk factors responsible for the outbreak and to take necessary steps for prevention of future outbreaks. Materials and Methods: Affected area was visited by a team of microbiologists for collecting stool samples/rectal swabs from affected patients. Samples were processed by culture followed by confirmation of the isolates biochemically, automated bacterial identification system, conventional serotyping and molecular typing. Water samples were also processed for detection of faecal contamination. Antimicrobial susceptibility testing was performed by Kirby–Bauer disc diffusion technique according to the Clinical Laboratory Standard Institute guidelines. Results: The isolates were confirmed as S. enterica subspecies enterica serovar Weltevreden. They were found sensitive to ampicillin, amoxycillin‑clavulanic acid, ciprofloxacin, ofloxacin, norfloxacin, cefotaxime, ceftriaxone, co‑trimoxazole and doxycycline. Water samples showed high‑level faecal contamination. Source of outbreak was found to be drinking water contaminated with dead livestock. House to house visit was made for early diagnosis and treatment of the cases, awareness campaigning and chlorination of drinking water. Conclusions: This report emphasises the geographical distribution of this organism in Assam. As S. Weltevreden is widely distributed in domestic animals, people should be made aware of immediate reporting of any unusual death among the livestock and their safe disposal which can significantly reduce the incidence of non‑typhoidal salmonellosis in the country.

Isolation of Shewanella algae from rectal swabs of patients with bloody diarrhoea.

Shewanella algae is an emerging bacteria rarely implicated as a human pathogen. It was infrequently recovered from clinical specimens probably because of inadequate processing of non-fermenting oxidase-positive gram-negative bacilli. We report here isolation of S. algae in pure culture and mixed with E. coli from two cases of acute gastroenteritis with bloody mucous containing diarrhea occurring at the same time. As this organism is not a normal flora of the gut, the possible source of infection may be fish contaminated with the organism. Whether this bacterium can be considered an enteric pathogen needs to be evaluated. The cases were clinically diagnosed as acute bacillary dysentery. The bacterium was identified by 16S r-RNA gene sequence analysis.

Prognostic role of C-reactive protein in acute stroke.

Background & objective: Stroke is a dreadful health hazard all over the world as well as in our country and one of the leading causes of mortality & morbidity. The relationship between serum C-reactive protein (CRP) level and post stroke outcome is not well studied especially in Bangladesh. We were interested to study this relationship in our country. Materials & methods: A cross sectional prospective study was performed on 50-stroke patients. Serum CRP & Lipid profile was determined. Post stroke outcome was measured by modified ranking scale (good outcome, score within 0 – 2 & bad outcome, score within 3 – 6). The subjects were divided in two groups, CRP level above or below 10 mg/L. Statistical analysis was performed by using SPSS software. Chi-square test & Spearman’s rho correlation test was done to see the level of significance. Results: Mean serum CRP level was 9.69 mg/L that was higher than normal subjects. Correlation analysis between serums CRP level of stroke patients with post stroke outcome was found to be positively correlated (r = 0.598/p<0.01). Conclusion: Serum CRP level may be used as a prognostic marker in stroke patients and it helps to make necessary management plan to physician.

Sexually transmitted diseases in Assam: An experience in a tertiary care referral hospital.

Background: Sexually transmitted diseases (STDs) including AIDS are becoming a major public health problem in developing countries worldwide. Aims: All the adult patients attending VCTC and STD clinics of Assam Medical College between May 2002 and December 2005 were enrolled in the study. Methods: Records of patients with high-risk sexual behavior and presence of STD on clinical examination were recorded in a predesigned proforma. Results: Of 479 individuals, 186 (38.8%) had evidence of STD and 70 were positive for HIV. Most (64%) were in the age group of 15 to 30 years. Candidiasis (vulvovaginal candidiasis in women and candidal balanitis/balanoposthitis in men) was the most common finding on clinical examination (21.5%) followed by syphilis (17.2%), genital warts (15%), herpes genitalis (11.3%), non-gonococcal urethritis (10.8%), and gonococcal urethritis (7%). Conclusion: High percentage of unmarried people (>45%) reporting with STD, which points to potential danger of HIV transmission in the region.

Interactions of bacterial polysaccharides with cationic dyes: Physicochemical studies.

Capsular polysaccharides (SPS) are an integral component of gram-negative bacteria, and also have potential use as vaccine. In this paper, interactions of SPS isolated from Klebsiella strains K20 and K51 with cationic dyes pinacyanol chloride (PCYN) and acridine orange (AO) were studied by absorbance and fluorescence measurements. Both the polysaccharides having glucuronic acid as the potential anionic site induced strong metachromasy (blue shift ~100 nm) in the PCYN. The spectral changes were studied at different polymer/dye molar ratios (P/D = 0-40). A complete reversal of metachromasy was observed upon addition of co-solvents, suggesting the breakaway of dye molecules from the biopolymer matrix. Binding constant, changes in free energy, enthalpy and entropy of the dye polymer complex were also computed from the spectral data at different temperatures to reveal the nature of the interaction. Quenching of fluorescence of AO by the polymers and the incorporated mechanisms were also explored.

Low plasma zinc and iron in pica.

OBJECTIVE: To determine role of trace elements in causation of pica with specific reference to zinc and iron we studied plasma levels of iron (Fe), Zinc (Zn), calcium (Ca) and magnesium (Mg) and blood lead (Pb) levels by atomic absorption spectrophotometer in 31 children with pica (Pica Group) and 60 controls matched for age, sex and nutrition (Control Group) in an observational case and control study in the settings of outpatient clinic of a tertiary care, teaching hospital. METHODS: Data from each group were further stratified by hemoglobin level <9 and >9 g/dl into two subgroups pica-1 and pica-2, and control-1 and control-2 respectively, to control for confounding effect of iron deficiency anemia. RESULTS: The plasma Fe level (mean +/- SD) in children with pica (42.7 +/- 9.2) mg/dl) was about 20% lower than that in controls (51.5 +/- 10.0 mg/dl, p < 0.001). Plasma Zn levels in the pica group (60 +/- 4.4 mg/dl) was about 45% lower than those in controls (110.2 +/- 8.5 mg/dl, p<0.001). Correlation of Zn and Fe levels with pica-related variables such as age at onset, duration and frequency and number of inedible objects ingested was not significant. CONCLUSION: These findings suggest that hypozincemia with low iron levels may be the possible cause of pica and contradict the contention that low levels of plasma Zn and Fe could be an effect of pica.

Raised platelet thiobarbituric acid-reacting substances in proliferative Eales' disease.

BACKGROUND: Platelets are an elective site for oxidative stress owing to their high content of polyunsaturated fatty acid. Increased lipid peroxidation and elevated platelet thiobarbituric acid-reacting substances (TBARS) signal oxidative stress. This possibly leads to retinal neovascularization in Eales' disease. METHODS: TBARS levels were estimated in consecutive cases of Eales' disease with neovascularisation (n = 26), Eales' disease without neovascularisation (n = 17) and healthy controls (n = 17). RESULTS: Platelet TBARS levels in the cases of Eales' disease with neovascularisation, Eales' disease without neovascularisation, and healthy controls were 0.66 +/- 0.1, 0.57 +/- 0.11 and 0.42 +/- 0.14 n moles TBARS formed/hour/10(8) platelets respectively. Student's t-test showed a significant increase in platelet TBARS levels in cases with neovascularisation as compared to cases without neovascularization (p < 0.05) and healthy controls (p < 0.01). CONCLUSION: The increase in platelet TBARS levels in proliferative Eales' disease is consistent with an emerging view that lipid peroxides may be associated with retinal neovascularisation.

Trends in poisoning in children: experience at a large referral teaching hospital.

BACKGROUND: Poisoning is a major problem in the paediatric population. The offending substances used vary from place to place. Information on poisoning trends in India is meagre and there is an impression among clinicians that there has been a change in the commonly used poisons over the years. This retrospective study aimed to determine the pattern of poisoning in children and to study the nationwide trend over the past five decades. METHODS: Case records of children (age group: 1 month and above) admitted to the Department of Paediatrics, King George's Medical College, Lucknow, Uttar Pradesh in three alternate calendar years, i.e. 1989, 1991 and 1993 were screened. All children were grouped into three categories based on the poison: (i) bites and stings, (ii) medicinal compounds, and (iii) non-medicinal compounds. The Indian literature on poisoning in children was reviewed and decade-wise data from a total of 22 studies (including the present study) were used to determine the changing trend. RESULTS: Childhood poisoning constituted 2.1% of the total paediatric admissions and 1.2% of total deaths. Non-medicinal compounds were the largest contributors (69.2%), of which kerosene alone was responsible for 47% of cases. Medicinal compounds, and bites and stings accounted for 21.6% and 9.2% of these cases, respectively. The case-fatality rate was 9.2%. Comparison of our data, after excluding bites and stings, with a previous study (1977-79) from our institution showed that kerosene poisoning continues to be responsible for a substantial part of the morbidity (51.8% v. 31.5%). Also, poisoning due to insecticides and pesticides has increased (13.7% v. 2.1%) while that due to plant poisons (primarily dhatura) has reduced markedly (4.8% v. 19.2%). CONCLUSION: Mortality due to poisoning in children has remained high over the last five decades (2.9%-4.7%). Kerosene has remained the single largest contributor to childhood poisoning (51.5% in the 1960s v. 52.8% in the 1990s).

Role of epidural medication in the treatment of resistant low back pain.

Two hundred and eight patients of low back pain were studied in the department of orthopaedic surgery, GSVM Medical College, Kanpur. The patients were put on intensive conservative treatment in the form of analgesics, hard bed rest, spinal extension exercises, traction and lumbosacral support. Thirty-two patients did not respond to this treatment and their symptoms were of more than 6 months duration and they were subjected to epidural injection of local anaesthetic agent, saline and corticosteroids. The failed 6 cases were investigated for consideration of surgery. The aim of this study is to develop standardised strategy for the treatment of low back pain. For the low back pain patients not responding to intensive conservative treatment, an idea has been put forward in the form of epidural medication prior to considering them to surgery to prevent unnecessary incidence of "failed back". A trial of epidural injection is suggested to avoid surgery.

Anterior chamber depth and lens thickness in primary angle-closure glaucoma: a case-control study.

Anterior chamber depth and lens thickness have been considered as important biometric determinants in primary angle-closure glaucoma (PACG). In a tertiary care centre-based case-control study, 70 patients and equal number of controls were investigated to analyse the strength of association and predictability of anterior chamber depth (ACD) and lens thickness (LT) in the disease. Mean (+/- S.D.) ACD and LT in the cases and the controls were found to be 2.28 +/- 0.19, 2.87 +/- 0.10; 4.57 +/- 0.34 and 4.13 +/- 0.19 mm respectively. Two sample t test demonstrated statistically significant difference in the ACD and LT between the cases and the controls (Difference being -0.59, 0.44; 95% confidence interval of the difference: -0.64, -0.53 and 0.34, 0.53 respectively, P < 0.01). Logistic regression analysis demonstrated statistically significant protective effect of ACD over PACG (P < 0.01). The odds ratio corresponding to an increase of 0.01 mm in ACD and LT were computed as 0.83 and 1.11 respectively.

Studies on induction of metachromasy in cationic dye pinacyanol chloride by Klebsiella K7 capsular polysaccharide.

The acidic capsular polysaccharide isolated from Klebsiella K7 induced metachromasy in the cationic dye pinacyanol chloride indicating its chromotropic character. Interaction of the biopolymer with the cationic dye was studied by visible absorption spectrophotometry, and thermodynamic parameters of the interaction evaluated. The polymer induced a metachromatic blue shift in the spectrum from 600 nm to 495 nm. The spectral changes were studied during interaction of the dye with the polymer at different polymer/dye molar ratios (P/D = 0 approximately 50). Effects of co-solvents on the stability of the dye-polymer compound were studied. A complete reversal of metachromasy was observed upon addition of different alcohols and urea solution. Thermodynamic parameters obtained from the spectral data indicated chromotropic character of the polymer in interacting with the cationic dye molecules in solution.

Effect of cadmium on tissue glutathione and glutathione peroxidase in rats: influence of selenium supplementation.

Administration of cadmium (2.5 mg/kg, sc on alternate days for 3 weeks) to male albino rats led to significant accumulation of cadmium and metallothionein in the liver and kidneys. The activity of glutathione peroxidase was significantly decreased whereas, the concentration of glutathione was increased in these organs. Glycine-l-14C incorporation studies showed enhanced synthesis of glutathione in kidney but not in the liver. Selenium supplementation (1 mg/kg/day orally) failed to prevent these cadmium-induced changes, although it resulted in very high accumulation of selenium in these organs indicating the formation of cadmium-selenium complex.