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Biomedical subjects

S S Uppal

Publications and source records attributed to S S Uppal.

At least 19 recordsLinked to original sources

Occurrence of overlooked zoonotic tuberculosis: detection of Mycobacterium bovis in human cerebrospinal fluid.

The paucibacillary nature of the cerebrospinal fluid (CSF) has been a major obstacle in the diagnosis of human tuberculous meningitis (TBM). This study shows that with molecular techniques direct precise determination to the species level of mycobacterial pathogens can be made. The present report describes the utility of a nested PCR (N-PCR) assay (A. Mishra, A. Singhal, D. S. Chauhan, V. M. Katoch, K. Srivastava, S. S. Thakral, S. S. Bharadwaj, V. Sreenivas, and H. K. Prasad, J. Clin. Microbiol. 43:5670-5678, 2005) in detecting M. tuberculosis and M. bovis in human CSF. In 2.8% (6/212) of the samples, M. tuberculosis was detected, and in 17% (36/212), M. bovis was detected. Mixed infection was observed in 22 samples. Comparative analysis of clinical diagnosis, smear microscopy, and N-PCR in 69 patients (TBM, 25; non-TBM, 44) showed that the sensitivity of N-PCR (61.5%) was greater than that of smear microscopy (38.4%). Determination to the species level is important from the viewpoint of determining the prevalence of these mycobacteria in a community and would influence strategies currently adopted for the prevention of tuberculosis.

Animals↗

Ankylosing spondylitis and undifferentiated spondyloarthritis in Kuwait: a comparison between Arabs and South Asians.

The objectives of this study were to describe and compare the clinical characteristics of ankylosing spondylitis (AS) and undifferentiated spondyloarthritis (USpA) in Middle East Arab (MEA) and South Asian (SA) patients diagnosed in our unit. Fifty-eight consecutive patients diagnosed with SpA were studied after classifying them into MEA and SA. They were further classified as per disease diagnosis. Excluding three patients with miscellaneous ethnicity, there were 29 MEA and 26 SA patients. Seventy-two percent of MEA patients were males (vs 92% of SA patients). Of the 29 patients with MEA ethnicity, 17 had AS and 9 had USpA. Of the 26 patients with SA ethnicity, 10 had AS and 14 had USpA. Fifty-nine percent of MEA patients had AS (vs 39% of SA patients). Mean age at onset in AS patients was similar in the two ethnic groups. However, in patients with USpA, mean age at onset was somewhat lower at 21.8 years in the MEA group compared with 29.4 years in the SA group. Family history in first-degree relatives was significantly more common in MEA patients. Weight loss, inflammatory spinal pain, gluteal pain, and enthesopathy were equally common in both ethnic groups. Knee, ankle, and metatarsophalangeal joint involvement was less common in MEA patients. There were no significant differences in the occurrence of syndesmophytes, bamboo spine, and sacroiliitis in the two ethnic groups. HLA-B27 positivity rates in MEA patients were 87% for AS and 67% for USpA compared to 75 and 71%, respectively, in SA patients. It is concluded that some significant new findings have arisen from this study: the majority of MEA patients presented with AS, whereas the majority of SA patients had a picture of USpA. Family history was more common in MEA patients. Peripheral arthritis was less common in MEA patients. Worldwide, this is the first study to show that there are significant differences in the clinical expression of the various SpA in MEA patients compared to SA patients.

Adolescent↗

First report of supraventricular tachycardia after intravenous pulse methylprednisolone therapy, with a brief review of the literature.

The occurrence of supraventricular tachycardia after high-dose intravenous methylprednisolone pulse therapy (HIVMPT) in a patient with active rheumatoid arthritis is described for the first time. This case report further expands the range of arrhythmias that can occur with HIVMPT. Other arrhythmias previously reported to occur after HIVMPT include atrial fibrillation, atrial flutter, junctional rhythm, and ventricular tachycardia. To the best of our knowledge, supraventricular tachycardia has not been reported previously, although severe bradycardia, hypotension, asystole, cardiovascular collapse, and sudden death have been documented. A review of the literature indicates that these case reports not withstanding, HIVMPT is generally safe, and cardiovascular toxicity is rare. However, close supervision with repeated measurements of blood pressure, electrocardiogram, and blood electrolytes is mandatory during and immediately after HIVMPT, especially for patients with pre-existing cardiovascular disease, and the lowest effective dose of methylprednisolone should be infused at a slow rate.

Arthritis, Rheumatoid↗

Left gluteal focal myositis in a patient with signet ring adenocarcinoma of the stomach: not a paraneoplastic phenomenon.

Focal myositis, the much rarer clinical and pathological variant of polymyositis, is generally a benign inflammatory pseudotumor of skeletal muscle Thus far, only three cases have been reported in association with a neoplasm. We now describe a fourth case of localized gluteal myositis seen in a case of signet ring adenocarcinoma of the stomach occurring not as a paraneoplastic syndrome, as in the previously reported three cases, but as an immunoinflammatory response around metastatic cell foci in both the involved muscles and local lymphatics.

Adult↗

Comparison of CD4 and CD8 lymphocyte counts in HIV-negative pulmonary TB patients with those in normal blood donors and the effect of antitubercular treatment: hospital-based flow cytometric study.

BACKGROUND: This study was designed to flow cytometrically determine baseline and sequential values of CD4 and CD8 lymphocyte subsets in patients without the human immunodeficiency virus and with pulmonary tuberculosis (TB) and to correlate these values with those obtained from normal male blood donors and with the radiologic extent of disease and response to therapy. METHODS: We studied 39 male patients without the human immunodeficiency virus and with sputum positive for pulmonary TB who had been admitted to Military Hospital (Cardiothoracic Center) in Pune, India. Clinical, laboratory, and radiologic evaluations of these patients were done. Hematologic parameters were assessed by an automated hematology cell counter (AcT*Diff, Coulter), and T-cell subsets (CD4 and CD8) were determined flow cytometrically (EPICS-XL, Coulter). RESULTS: CD4 counts and percentages of CD4 were significantly lower, but CD8 values were normal, in patients with pulmonary TB when compared with values obtained in normal blood donors. The CD4/CD8 ratio was significantly lower in patients with TB. The CD4 counts normalized with antitubercular treatment. The radiologic extent of disease did not correlate well with the immune parameters studied. CONCLUSIONS: TB is a reversible cause of CD4 lymphocytopenia and is associated with normal numbers of CD8 cells. The radiologic extent of disease does not seem to determine the immune response.

Adult↗

Normal values of CD4 and CD8 lymphocyte subsets in healthy indian adults and the effects of sex, age, ethnicity, and smoking.

BACKGROUND: Information on lymphocyte populations (T, B, and natural killer cells) and subpopulations (CD4 and CD8) in India is generally lacking. Measurement of T-cell subsets is important in India for evaluating disease stage and progression in individuals with the human immunodeficiency virus (HIV). Hence, this study was conducted to provide normal ranges of absolute and percentage values of CD4 and CD8 T-lymphocyte subsets and the ratio of CD4 to CD8 in normal Indian adults. METHODS: Flow cytometric analysis (EPICS-XL) was used to determine the range of T-lymphocyte subpopulations in normal Indian blood donors at Command Hospital and the Armed Forces Medical College, Pune, India. The reference population consisted of 94 healthy HIV-seronegative blood donors. T-lymphocyte subsets were analyzed with two-color immunophenotyping of peripheral blood lymphocytes with the use of a lysed whole-blood technique and enumerated. RESULTS: For normal values of various blood components, we found mean values of 2114 cells/microl for total lymphocytes, 865 cells/microl (40.2%) for CD4(+) lymphocytes, 552 cells/microl (31.3%) for CD8(+) lymphocytes, and 1.7 for the CD4:CD8 ratio. The 95% confidence intervals for the same parameters were 1115-4009 cells/microl, 430-1740 cells/microl (30.75-49.60%), 218-1396 cells/microl (20.06-42.52%), and 0.39-3.02 respectively. Females had significantly higher CD4 counts (P < 0.05), percentage of CD4 lymphocytes (P < 0.01), and CD4:CD8 ratio (P < 0.01). Males had a significantly higher percentage of CD8 lymphocytes (P < 0.01). They also had higher CD8 counts that did not reach significance. Age, ethnicity (Dravidian versus Aryan), smoking, alcohol consumption, and the interval between drawing the blood sample and its analysis were factors that did not produce statistically significant differences in the T-cell subsets studied. CONCLUSIONS: When compared with other published series, the CD4 and CD8 values in healthy Indians were no different from those reported in the West. These observations have important clinical implications for the use of T-lymphocyte subset measurements in India, especially in the management of HIV infection. The normal ranges established by this study can be used as a reference for decisions made in clinical practice.

Adolescent↗

Profile of HLA-B27-related 'unclassifiable' seronegative spondyloarthropathy in females and its comparison with the profile in males.

Unclassifiable seronegative spondyloarthropathy (SSA) syndrome is primarily considered to be an affliction of males. In this report from northern India, 25 HLA-B27 antigen positive females with this condition are described and compared with 39 HLA-B27-positive males with the same disease. All these patients presented with typical features of spondyloarthropathy such as predominantly lower limb synovitis, enthesopathy and inflammatory spinal pain. The onset was insidious in 56% of the females and in 64% of the males. The mean age of onset as also the mean duration of symptoms prior to diagnosis were significantly higher in females (26.2 vs 19.4 yr and 8 vs 2 yr, respectively). A mono- or oligo-arthritis was seen in 52% of the females and in 53% of the males, but the average number of joints involved was less in females (4.8 vs 7.7). Lower limb joints alone were involved in 56% of the females and 49% of the males, with the knees, ankles and hips being most commonly involved, often asymmetrically. The mean degree of symmetry was significantly lower in females (62 vs 76). Ninety-two per cent of females and 74% of males had inflammatory spinal pain. Radiographic sacroiliitis was demonstrable in 56% females and 74% males. It is concluded that 'unclassifiable' SSA syndrome is not infrequent in females but is diagnosed late. Fewer joints tend to be involved and there is greater tendency towards asymmetry in females.

Adolescent↗

Adult onset Still's disease in northern India: comparison with juvenile onset Still's disease.

The present study compared the clinical and laboratory picture, the disease course and outcome in 31 patients having adult onset Still's disease (AOSD) with 23 patients having juvenile onset Still's disease (JOSD). The median age at disease onset was 20 and 7 yr for AOSD and JOSD patients, respectively. On analysing and comparing our data on these two groups, no significant differences emerged except that adults had a significantly lower time interval from disease onset to remission as compared to juveniles. Upon comparison of data on our AOSD patients with that published from abroad, rash, adenopathy and sore throat were less frequent. No clinical or laboratory variables were found to predict the subsequent disease course and outcome in either group. The functional outcome was good in about 70% of both groups and mortality was low. It is concluded that the clinical picture and outcome in AOSD is similar to that of JOSD.

Adult↗

Behçet's disease in India: a clinical, immunological, immunogenetic and outcome study.

The clinical and laboratory profile of 58 consecutive patients satisfying the ISG 1990 criteria for the diagnosis of Behçet's disease was analysed. It appears that Behçet's disease in India is predominantly 'mucocutaneous' and 'arthritic'; 'ocular' and 'neuro' Behçet's being uncommon. In comparison to published literature, the onset of disease in this part of the world is significantly delayed. The pathergy test is rarely positive. There is no significant difference in clinical presentation and laboratory investigations between children and adults with this disease; also, no sex difference was observed. A combination of oral steroids and colchicine gives good relief in most cases. Preliminary observations seem to reflect no definite association of any known class I antigen to disease in this part of the world. A detailed study on immunogenetics is underway.

Adult↗

Spectrum of clinical and laboratory characteristics of HIV infection in northern India.

To define the impact of HIV infection in India, the clinical and laboratory profile and the correlation of CD4 count to the likely opportunistic infection in a cohort of 134 HIV positive patients in Northern India was analysed. Majority of the patients, 72% and 67.8% (children and adults respectively) were asymptomatic, having been detected during routine screening and maintained that status for a median follow-up period of 3 years. Among the symptomatic patients, oropharyngeal candidiasis was the most common opportunistic infection followed closely by tuberculosis (both pulmonary and extra pulmonary) around 3.6-4.0 years from probable HIV infection with a median CD4 of 420-578 per cmm. Infection with Cryptococcosis, Cryptosporidiosis and cytomegalovirus occurred only after a significant fall in CD4 to < 100/cmm usually around 8-10 years from probable HIV infection. Pneumocystis carinii pneumonia was the terminal event among the 12 deaths at a mean CD4 count of 6/cmm. Non specific constitutional symptoms like fever, prolonged diarrhoea and significant weight loss were frequent. In general, the clinical profile of Indian patients with HIV bears much resemblance to African countries owing perhaps to the similar background of poverty, malnutrition and endemic infection.

AIDS-Related Opportunistic Infections↗

Intravenous dexamethasone pulse therapy in diffuse systemic sclerosis. A randomized placebo-controlled study.

Thirty-five patients with diffuse systemic sclerosis were studied in a randomized, placebo-controlled, double-blind study. Seventeen patients received intravenous dexamethasone "pulse" therapy, while 18 patients received placebo. Each "pulse" consisted of 100 mg dexamethasone in 250 ml 5% dextrose infused intravenously over 1 h. Pulse therapy was repeated every month for 6 months. Assessment of disease status with various parameters was done at entry and at completion of trial, i.e. after 6 months. Significant improvement in skin involvement was seen in the study group, with the total skin score (TSS) decreasing from 28.5 +/- 12.2 to 25.8 +/- 12.8, while in the control group, TSS increased from 30.6 +/- 13.2 to 34.7 +/- 10. Similarly, significant improvement was noted in the flexion index. Other parametres that included extension index, maximum oral opening, range of movement of joints, functional disability score, Raynaud's phenomenon (frequency and duration), ESR, proteinuria, chest X-ray, ECG, lung function tests, barium swallow and antinuclear antibody were unchanged. Adverse effects of therapy were limited to an increased incidence of minor chest infections. It is concluded that intravenous pulse dexamethasone may be useful in the treatment of diffuse systemic sclerosis.

Adult↗

SLE in Indian men: analysis of the clinical and laboratory features with a review of the literature.

Data on the clinical and laboratory profile of 39 male lupus patients has been analysed. An attempt has been made to (1) delineate the pattern of SLE in Indian males, (2) compare it with that reported in the world literature, (3) find out differences, if any, between male children and adults with the disease, and (4) compare it with our previously published data on Indian females with SLE. Several important points were brought out in this study. First, SLE in Indian males has an earlier age of disease onset, a higher incidence of mucocutaneous and renal involvement and a lower incidence of neuropsychiatric, gastrointestinal and hematological disease in comparison to those published from the developed countries. Second, leucopenia and lymphopenia, a reflection of disease severity, occur significantly more in male children compared with adults. Thrombocytopenia is exclusively noted in adult males and virtually non-existent in children. Third, male patients overall have a less severe form of the disease in comparison with their female counterpart, as was evident by significantly less patients with hypocomplementemia, diffuse proliferative lupus nephritis and psychosis. Finally, a higher frequency of infection, particularly tuberculosis, was seen in male patients, which was the cause of death in some.

Adolescent↗

Analysis of clinical and laboratory profile in Indian childhood systemic lupus erythematosus and its comparison with SLE in adults.

Data on the clinical and laboratory profiles of 83 children with SLE have been analysed and compared with data on 187 adults with the disease. The clinical features of childhood SLE are similar to those seen in adults, although clinical and laboratory parameters reflect propensity to a more severe form of the disease in the juvenile age group. However, in comparison to descriptions of childhood lupus from developed countries, in India the female-to-male ratio in this age group parallels that in adults. Renal involvement is noted to be more common, whereas gastro-intestinal and haematological abnormalities are less common. Interestingly, leucopenia, lymphopenia and nephritic type of renal involvement are commonly seen in boys with SLE, but these features are non-existent in men.

Adolescent↗

Major histocompatibility complex genes and susceptibility to systemic lupus erythematosus in northern India.

Fifty-eight patients with systemic lupus erythematosus (SLE) from Northern India were tissue typed for HLA class I and II antigens. The results revealed an appreciable increase of HLA-DR4 (37.5%) among patients compared with controls (17.9%), P < 0.03. Additionally, haplotype B8-DR3 was encountered frequently in the patient group. The findings suggest an important role of MHC genes in influencing susceptibility to SLE.

Adolescent↗